PHOTOFACT* Folderwith ClRCUITRACE*

PHILCO CHASSIS 1OL41,U, 1OL42, U, 1OL43, U

MODEL H3412L(Ch. 10L43)

TRADE NAME Philco MODELS CHASSIS

MANUFACTURERTYPE SETTUBESPOWER SUPPLYTUNING RANGE

H4254S, SL, H4674, L, W, H4676S, SL, H4678, W, H4680, L, W,H4682S, SL, SW, H4690, P, H4692W, H4696S, SW 10L41H4676SLR, SR, H4680LR, R, WR, H4690PR, R,H4692WR, H4698PE, R 10L42H3408C, H3410, L, V, H3412GL, L, H4432, L, H4730, W 10L43UH4254S, SL, UH4674, L, W, UH4676S, SL, UH4678, W, UH4680, L, W,UH4682S, SL, SW, UH4690, P, UH4692W, UH4696S, SW 10L41UUH4690PR, R, UH4698PR, R 10L42UUH3408C, UH3410, L, V, UH3412GL, L, UH4432, L, UH4730, W 10L43U

Philco Corp., Tioga & "C" Streets, Philadelphia, Pa.Television ReceiverVHF-Sixteen, UHF-Seventeea105-120 Volts AC, 60 Cycle RATING 160 Watts, 1. 7 Amp. ® 117 Volts ACChannels 2 thru 13 VHF, 14 thru 83 UHF, Video IF 45. 75MC, Sound IF 41. 25MC (Intercarrier)

SERVICING IN THE FIELD

SAFETY GLASS REMOVAL

Remove 2 screws at bottom of picture tube holding trim.Remove spring holding trim strip around picture tube. Re-move 2 screws holding metal shell strap. Remove strap andfront glass.

FUSE

A fuse wire is used for filament protection. (For location,see M4 in photo "Chassis Top View".)

FUSE DEVICE

A 5.6fi fusible resistor is used for low voltage power sup-ply protection. (For location, see "Tube Placement Chart'.')

TUNER OSCILLATOR ADJUSTMENTS

To touch-up the VHF Oscillator, remove Channel Selectorand Fine Tuning knobs.

AGC

The AGC may be varied by means of a Range Switch. (For

location, see "Tube Placement Chart".)

FOCUS

The focus may be varied by connecting the lead from pin 4of the picture tube to various voltage points. (For location,see photo "Chassis-Top View".)

HORIZONTAL OSCILLATOR FIELD ADJUSTMENTS

Coarse adjustment of the Horizontal Hold is accomplishedby the proper setting of the Horizontal Frequency control.(For location, see "Tube Placement Chart".)

WIDTH

The width may be varied by adjusting a metallic sleeve, lo-cated between the yoke and the picture tube neck, in or outof the yoke.

CENTERING

Centering is accomplished by 2 magnetic rings, located be-hind the yoke, on the neck of the picture tube.

K> O> IC >

cfi

HOWARD W. SAMS A CO., INC. Indianapolis 6, Indiana

The listing of any available replacement part herein doesnot constitute in any case a recommendation, warranty orguaranty by Howard W. Sams & Co., Inc., as to the qualityand suitability of such replacement part. The numbers ofthese parts have been compiled from information furnishedto Howard W. Sams & Co., Inc., by the manufacturers ofJA644

the particular type of replacement part listed. Repro-duction or use, without express permission, of editorial orpictorial content, in any manner, is prohibited. No patentliability is assumed with respect to the use of the informa-tion contained herein. © 1959 Howard W. Sams & Co., Inc. ,Indianapolis 6, Indiana. Printed in U.S. of America

DATE 12-59 SET 4 6 6 FOLDER 1

SOUND IF6EA8

AUDIO OUTPUT@ 6BQ5

TO TUNERANTENNA TERMINALS

THIS SWITCH MUST BECLOSED FOR ALL CLOCKSWITCH POSITION

SW ON e

VOLUME /«.CONTROL (ry

Y

TUNER 76-10524-3, -4, -5(T-100A, D. EKVHF) 5TUNER 76-10526-2, -11T-28C, D> 5REMOTE CONTROL RC-50 14TUNER 76-10525-3, -4, -5IT-101, A, 0, E) IVHF withUHFProvisionsI 16POWERTUNING 18

^DENOTES CHASSIS GROUND

» MEASURED FROM PIN 7 OF V2.

NUMBERS ASSIGNED TO COILS, SWITCHES, PLUGS, SOCKETS, ANDTRANSFORMERS ARE TO FACILITATE CIRCUIT TRACING OR COM-PONENT REPLACEMENT AND MAY NOT NECESSARILY BE FOUND ON

THE UNIT.

DC COIL RESISTANCE VALUES UNDER ONE OHMNOT SHOWN ON SCHEMATIC DIAGRAM

ARROWS ON CONTROLS INDICATE CLOCKWISE ROTATION(CONTROL VIEWED FROM SHAFT END)

WAVEFORMS TAKEN WITH CONTROLSSET TO PRODUCE 50 VOLTS PEAK-TO-PEAK SIGNAL AT PICTURE TUBE.

1. DC voltage measurements taken with vacuum tube 3. Mvoltmeter; AC voltage measured at 1000 ohms urper volt.

4. Line Voltag2. Pin numbi junted in clock

3rd W. Sams 8, Co., Inc. 1959

PAGE 2

)IO OOTPUT) 6BQ5

PICTURE TUBE

elfl3)l7DRP4

CONNECT FOCUS ANODE

RESULTS IN BEST FOCUS.

N SOME VERSIONS,PLUG & SOCKETCIRCUIT IS NOT USEDAND PICTURETUBEISWIRED DIRECT. 1/W\

VIDEO OUTPUT

©A 6AW8A

©A

CONTRAST^ t J 2.2mec1.5rr

_-(VB) SHORTED TO GROUND.

A 6DR7 ! ™

1500° 1WWITH ISOnSTOP

VERTHOLD

75K 400VBOOST

* HV RECT

X33GT/1B3G1DO NOT MEASURE

HORIZ OUTPU1

10)6DO6A DO NOT MEASURE

, TO PICTURE TUBE' HV ANODE

47000 (I4.5-16KV]15KV

iRN-WH

•275V

27.5V PHILCO CHASSIS 1OL41,

U, 1OL42, U, 1OL43, U

PAGE 19

TUBE PLACEMENT CHART

CHANNEL SELECTOR

TOP VIEW

V1317DRP4

I17DAP4)(21EVP4I

PICTURE TUBEYOKE

MIXER-OSC RF AMPLIFIER

OFF-ON VOL

AINDICATES BLANK PIN OR LOCATING KEY

.HORIZ HOLD

3rd VIDEO IF-VIDEO DET

' V12 \I1G3GT/1B3GTI

>a

VERT MULT-VERT OUTPUT

PICTURE TUBE SOCKET

AUDIO DETECTOR 6C56J/ RANGE SWITCH

HORIZ FREQ

TUBE FAILURE CHECK CHART

The following chart lists tubes whose failures are most likely to produce indicated symptoms. Refer to tube placement chart for location and type of tube.

POWER SUPPLY FAILURENo raster, no sound Fusible Resistor, Rect. (B+)

SWEEP FAILURENo raster, has sound Diode (Horlz. AFC), V9, V10, Vll, TO, V13No vertical deflection V8Poor vert, linearity or foldover V8Poor horlz. linearity or foldover V9, V10, VllNarrow picture V9, V10, Vll, Rect. (B+)Vert. oUfreq. V8Horlz. ofl freq. Diode (Horiz. AFC), V9

LOSS OF PICTURE OR SOUNDNo pic, no sound, has raster VI, V2, V3No pic, no sound, has snow V201, V202, VINo pic, has sound, has raster V4, V13Has pic, no sound V5, V6, V7

SYNC FAILURENo vert, sync V4No horiz. sync V4, Diode (Horiz. AFC)No vert, or horiz. sync V4

5

SET 466 FOLDER 1PAGE 3

Ha2!

OiI

»— <oenCO

CO

oo

HOhj

CircuiTrace Numbers 1 thru 12

VIDEO IF PRINTED BOARDA Howard W. Sam« Photo A R R O W S INDICATING TUBE LOCATIONS ARE

POINTING TO PIN 1 UNLESS OTHERWISE INDICATED

RF AMP® , , RF AMI(S) (S) 6BC8

Smmf 5* \^MIXER PLATE COIL

|(—@ JF OUTPUT

ICHANNEL SELECTOR SWITCH SHOWN IN CHANNEL 13 POSITION

•oX

gSSoK> n

N Ic >> w»_i (/»O t/5E i

A PHOTOFACT STANDARD NOTATION SCHEMATIC© Howard w. soms & Co., inc. ,959 VHF TUNER 76-10524-3. -4, -5 (T-100A, D, E)

UHF IF OUTPUT

<£|—o •—o »

S>j—o •—o

UHF ANT TERMINALBOARD

A PHOTOFACT STANDARD NOTATION SCHEMATIC© Howard W. Sams 8, Co., Inc. ,959 UHF TUNER 76-10526-2, -3 (T-28C, D)

oi-om70

SET 466 FOLDER I PAGE 5

TUNER ALIGNMENT INSTRUCTIONSPRE-ALIGNMENT INSTRUCTIONS FOR TUNER T100, T101

The high voltage lead should be securely taped and kept away from the chassis.Allow a 20 minute warm-up period for the receiver and test equipment.Suggested alignment tools: A201, A202, A203, A206, A207, A208, A221 . . .General Cement #5009, 8195, 8274, 8275, 8728, 8987

Walsco #2531A204, A205 General Cement #5000, 5003, 5009, 8290

Walsco #2520, 2523, 2525, 2537A209 thru A220 General Cement #8729, 8988, 8989, 9294

Walsco #2532, 2538Mixer Plate Coil General Cement #8606, 8606L, 8282, 9295

Walsco #2526, 2543, 2544, 2545

VHF RF AND MIXER ALIGNMENT

Set Range switch to "Normal".Connect the negative lead of a 1. 5 volt bias supply to point <^> . Positive to chassis.Detune the Mixer Plate coil by connecting a 10 to 20mmf capacitor across it.Connect the synchronized sweep voltage from the sweep generator to the horizontal input of the oscilloscope for horizontal deflection.The sweep generator output lead should be terminated with its characteristic impedance, usually 50 ohms.Use only enough sweep generator output to provide a usable pattern on scope.Use 10MC sweep unless otherwise noted.Coils not containing adjustable cores are adjusted by expanding or compressing coil turns.

DUMMYANTENNA

Two 120SJCarbonResistors

"

SWEEPGENERATORCOUPLING

Across VHF antennaterminals with 120SJ ineach lead.

SWEEPGENERATORFREQUENCY

213MC

177MC

85MC

MARKERGENERATORFREQUENCY

210MC

211. 25MC

174. OMC180. OMC

82.0MC85. OMC88. OMC

CHANNEL

13

7

6

CONNECTSCOPE

Vert. Amp. thru10K to point <S> •Low side to chassis.

"

ADJUST

A201

A202,A203

A204,A205

A206,A207,A208

REMARKS

Adjust for maximum amplitude.

Adjust for maximum gain and symmetry ofresponse similar to Fig. 201 with markersas shown. Adjust A202 to set marker level,A203 for proper tilt.

Adjust for tilt as shown in Fig. 202.Reeheck step 2 and retouch, if necessary.Repeat step 3.

Turn A206 counterclockwise until a singlepeak appears. Adjust A207 until peak fallsat 85MC. Adjust A208 for maximum gainand symmetry of single peak. RetouchA206 and A207 for symmetrical responsecentered about 85MC.

VHF OSCILLATOR ALIGNMENT

Set the Fine Tuning to the center of its range.This procedure uses the traps of the Video IF strip. Make certain Video IF Alignment is correct.

DUMMYANTENNA

Two 120IJCarbonResistors

SIGNALGENERATORCOUPLING

Across VHF antennaterminals with 120nin each lead.

SIGNALGENERATORFREQUENCY

209. 75MC(400% 30%AM Mod)203. 75MC197.75MC191. 75MC185. 75MC179. 75MC173.75MC81. 75MC75.75MC65.75MC59. 75MC53.75MC

CHANNEL

13

12111098765432

CONNECTVTVM

Across Video Detectorload

ADJUST

A209

A210A211A212A213A214A215A216A217A218A219A220

REMARKS

Adjust for MINIMUM scope indication.

UHF TUNER ALIGNMENT

This portion of the receiver has been properly aligned at the factory and is very stable. Alignment of this portion should not be required in the field.

Desired—>\Venter Freq// Actual

Center Freq.177MC

Actualr\ /

,Center Freq/./^.Desired

Center Freq.177MC

ORIGINAL

FIG.202

COMPENSATED

F IG.20I

PAGE 6

TUNER PARTS LIST AND DESCRIPTIONS76-10524-3(T-100A)

TUBES

ITEMNo.

V201

CBS - GENERAL ELECTRIC - RAYTHEON - SYLVANIA

USE

RF Amplifier

TYPE

6BC8

ITEMNo.

V202

USE

Mixer-Osc.

TYPE

6X8

FIXED CAPACITORSCapacity values given in the rating column are in mfd. for Paper

Capacitors, and in mmfd. for Mica and Ceramic Capacitors.

ITEMNo.

C201C202C203C204C205C206C207C208C209C210C2UC212C213C214C215C216C217C218C219C220C2210222

RATING

39 NPO 10%5 ±. 25mmf5 ±. 25mmf5 10%10003 10%150.8-380 5%2.239 10%.8-37. 5 ±. 5mml100068015027 N220 10%3.9 10%27 N750 10%1 i.lmraf10001000

REMARKS

#30-1268-1

#30-1268-13

#30-1268-6130-1271-3

#30-1268-1

REPLACEMENT DATA

AEROVOXPART No.

NPO-DI 39NPO-SI 5NPO-SI 5

EF-001NPO-SI 3DI-150

NPO-SI 2. 2NPO-DI 39

BPD-001SI 680

NPO-SI 1EF-001EF-001

CENTRAIABPART No.

TCZ-39TCZ-4R7TCZ-4H7

MFT-1000TCZ-3R3DD-15I829-3

TCZ-2R2TCZ-39829-3

DD-102DD-681

TCZ-1MFT-1000MFT-1000

CORNEli-DUBILIERPART No.

C10Q39CC10V5CC10V5C

C10V3CL10T15

C10V22CC10Q39C

C10V8CBYA10D1BYA10T68

C10V4C

ELMENCOPART No.

CCTO-390CCTO-050CCTO-050

CCF-102CCTO-3R3CCD-151CV-1

CCTO-2R2CCTO-390CV-1

CCD-102CCD-681

*

CCTN-270

CCF-102CCF-102

MALLORYPART No.

CNO-439CNO-547CNO-547

CT280ACNO-533GP315CT565

CNO-522CNO-439CT565GP580GP210GPS 68

CNO-510CT280ACT280A

SPRAGUEPART No.

10TCC-Q3910TCC-V5010TCC-V50

10TCC-V3310TS-T15

10TCC-V2210TCC-Q39

5HK-D1010TS-T68

10TCR-Q2710TCC-V39

10TCC-V10

* Not normally In distributor's stock. Available thru distributor on order to manufacturer.I Phllco Part Number.

RESISTORSAll wattages 1/2 watt, or less, unless otherwise listed.

ITEMNo.

R20IR202R203R204

RATING

1500S210K1800SJ 1W10K

REMARKS ITEMNo.

R205J206*2071208

RATING

470K 5%470K 5%220K47K 1W

REMARKS

Note 1. Alternate 56K resistor is used in T-IOOA tuner.Ch. 10L42.

ITEMNo.

R209R210R211

RATING

15K10K68K 1W

REMARKS

Note 1

<=5— r-

O

K> n

cfi

COILS (RF-IF)

ITEMNo.

L201L202L203L204

L205L206

USE

Ant. CoilAnt. CoilIF TrapAnt. Coils

RF ChokeRF Coils

PHILCO

PART No.

32-4725-432-4725-432-4719-276-11498

32-4652-5276-11712

NOTES

Channel 2-13,Includes WaferAssy.

Channel 2-13,Includes WaferAssy.

ITEMNo.

L207

L208

L209

USE

Mixer GridCoils

Osc. Colls

Mixer Plate Coil

PHILCO

PART No.

76-10556

76-10108

32-4652-48

NOTES

Channel 2-13,Includes WaferAssy.Channel 2-13,Includes WaferAssy.

MISCELLANEOUSITEMNo. PART NAME

Switch ShaftWrench ExtensionShaftPre-Set Plate &Screw Assembly

PHILCO

PART No.

76-11451-1128-13074-1

76-11735-1

NOTES

AssemblyPart of Pre-Set Fine Tuning Assembly

Part of Pre-Set Fine Tuning Assembly

SET 466 FOLDERPAGE 7

MAIN PRINTED BOARD - CAPACITOR & MISC.IDENT. VIDEO IF PRINTED BOARD

ALIGNMENT INSTRUCTIONSPRE-ALIGNMENT INSTRUCTIONS

The High Voltage lead should be securely taped and kept away from the chassis.Allow a 20 minute warm-up period for the receiver and test equipment.Suggested Alignment Tools: Al thru A4.

Al thru All .

.. GENERAL CEMENT #5000, 5003, 5014, 5015, 5016, 8276, 8290WALSCO #2512, 2515, 2522, 2523, 2525, 2537

. . GENERAL CEMENT #8606, 8606L, 8282, 9295WALSCO #2526, 2543, 2544, 2545

VIDEO IF ALIGNMENT

Connect the negative lead of a 6 volt bias supply to point <$> . Positive to chassis.Connect the negative lead of a 3 volt bias supply to point <$p . Positive to chassis.Connect the synchronized sweep voltage from the sweep generator to the horizontal input of the oscilloscope for horizontal deflection.The generator output lead should be terminated with its characteristic impedance, usually 50 ohms.Use only enough generator output to provide a usable indication on VTVM.

DUMMYANTENNA

Direct

"

"

"

"

Two 120S1CarbonResistors

SWEEPGENERATORCOUPLING

Place a thin insulatedmetal strip between theMixer -Osc. tube (V202),and tube shield. Connectthe high side of sweepgenerator to the metalstrip. Low side to chas-sis.

"

"

Across antenna termi-nals with 120SZ in eachlead.

SWEEPGENERATORFREQUENCY

Not used

"

"

"

"

69MC(10MC Swp)

MARKERGENERATORFREQUENCY

45. SMC(400-1. AMMod)

41. 25MC

47.25MC

42. 75MC

45.0MC

44.4MC

65.75MC

42. 75MC45. 75MC

CHANNEL

Any non-interfer-ingchannel

"

"

"

"

4

CONNECTSCOPE

Vert. Amp. thru 10Kto point <^> . Low sid<to chassis. (AcrossVideo Det. load)

"

"

"

"

ADJUST

MixerPlateCoil

Al

A2, A3

A4, A5

A6

A7

FineTuning

REMARKS

Adjust for maximum on scope.

Adjust for MINIMUM on scope.

"

Adjust for maximum on scope.

"

Adjust for MINIMUM on scope. LeaveFine Tuning at this setting.

Use only enough sweep generator output toprovide a usable pattern on scope. Checkfor response similar to Fig. 1. If necessaryretouch Mixer Plate Coil and A4 thru A7 fordesired response. Position 45. 75MC markeiwith Mixer Plate Coil and A6. Position42. 75MC marker with A4 and AS. Flattencurve with A7.

nI>

cfi

4. SMC TRAP ALIGNMENT

Use a 4. SMC tuned detector similar to Fig. 2. Before aligning trap, connect the detector to an accurate source of 4. SMC signal and adjustthe coil slug for maximum DC voltage output. Set Contrast fully clockwise.

DUMMYANTENNA

. OOlmfd

SIGNALGENERATORCOUPLING

High side to point ^ .Low side to chassis.

SIGNALGENERATORFREQUENCY

4. SMC(4001. 30%AM)

CHANNEL

Any non-interferingchannel

CONNECTVTVM

DC probe thru detectoi(Fig. 2) to pin 7(cathode) of picturetube. Common tochassis.

ADJUST

A8

REMARKS

Adjust for MINIMUM deflection.

SOUND IF ALIGNMENT

Tune in a TV station, disconnect the antenna and adjust the Fine Tuning for best picture. DO NOT readjust Fine Tuning during balance ofalignment.Connect antenna and adjust A9 for maximum sound. Connect the DC probe of a VTVM thru 10K to point <^> . Common to chassis.Using a weak station signal (with antenna disconnected), adjust A10, All and A12 for maximum deflection.If necessary, retouch SLIGHTLY AID, All and A12 to remove intercarrier buzz or noise interference. (DO NOT CHANGE more than 1/4".}

INPUT

PHILCO PART#32-4449 OR EQUIVALENT

OUTPUT

F I G . 1 F IG .2• i

O

1SET 4 6 6 FOLDER1 PAGE 9

PARTS LISTTUBES

ITEMNo.

VIV2V3

V4V5V6

CBS • GENERAL ELECTRIC « RAYTHEON • SYLVANIA

USE

1st Video IF Amp.2nd Video IF Amp.3rd Video IF Amp.-Video Det.Video Output-Sync Sep.Sound IF Amp. -Noise Inv.Audio Detector

TYPE

6DE66DE6

6AM8A6AW8A6EA8 (6U8) *6CS6

ITEMNo.

V7V8V9V10VllV12

USE

Audio OutputVert. Mult. -Vert. OutputHoriz. Mult.Horiz. OutputDamperHV Reel.

TYPE

6BQ56DR76CC76DQ6A6DA41G3GT/IB3GT

PICTURE TUBE

ELECTROLYTIC CAPACITORS

> Not normally in distributor's stock. Available thru distributor on order to manufacturer.Note 1. Not used in Ch. 10L41, U. Note 3. Alternate Part *30-2590-56.Note 2. Ch. 10L41, U use 80/20/20/40mfd @ 350V (Part #30-2590-48).

FIXED CAPACITORSCapacity values given in the rating column are in mfd. for Paper

Capacitors, and in mmfd. for Mica and Ceramic Capacitors.

# Philco Part Number. * Alternate value.** Not normally in distributor's stock. Available thru distributor on order to manufacturer.

(Jl Not used in some versions. ® Ch. 10L41, U, 10L42, U use 135mmf 5% ® 5000V in this(2> Runs 1 thru 3 use 6800mraJf in this application. application (Part #30-1246-17).

ITEMNo.

V13

REPLACEMENT DATA

PHILCOPAST No.

17DRP417DAP421EVP4

GENERA1 ELECTRICPART No.

RCAPART No.

RAYTHEONPART No.

SYLVANIAPART No.

17DAP4/SF-17(D

NOTES

Q) "Silver Screen 85"

ITEMNo.

R1ABC

R2AB

R3ABC

H4AB

R5AB

ReR7A

B

RATING

RESIST-ANCE

1. 5megImeg*nVKh200KShaft75KShaftBushing50KShaft15KShaft1500SJ

leon stop100 K3meg

WAns1~

ii

i2(WW)

1(WW)

11

PHILCOPART No.

33-5592-49

33-5593-24

33-5593-25

33-5593-30

33-5574-7

33-5591-20

33-5595-3

CENTRPART

B-46Not ReB-35Not BeNot HeB-31Not ReWW-15Not Re

ITEMNo.

ClC2A

BCD

C3ABC

RATING

CAP.

200.80.200.2020•10.20100

VOLT.

15030015030030045035050

REPLACEMENT DATA

PHILCOPART No.

30-2568-7830-2590-52

30-2590-49

AEROVOXPART No.

AFHS1-24-24!AFHS4-47-25

AFH3-157

CORNELL-DUBILIER

PART No.XA0262. 1 S

/D0022\BB20015

aiso

MALLORYPART No.

FP118 §

rFP333.8I-WS342

FP389

PYRAMIDPART No.

TMS-26 5TMT-43 1TD-200-150,

TMD-49TD-100-50

SPRAGUEPART No.

TVLS-1431. !•§TVLS-4576 •

TVL-3928

NOTES

Note 1Note 2

Note 3

ITEMNo.

C4C5C6C7C8C9aoCllC12CISC14C15C16C17CISC19C20C21C22C23C24C25C26C27C28C29C30C31C32C33C34C35C36C37C38C39C40C41C42C43C44C45C46C47C48C49C50C51C52C53C54C55

RATING

.22 100V3.3 NPO.5-3.5-31-510001-5. 22 100V68010003.3 NPO 10%4701000680. 1 200V100056010001000518000.0047 400V 10%.047 400V100008200.1 200V47004701000.1 200V150027 N3302200330082002200.0068 400V. 15 100V.1 400V.0015 1000V.033 400V3900.0039 600V 10%47 10%390 10%.01 400V. 22 100V8200.022 400V 10%120 5000V 10%.022 600V1000

REMARKS

1(31-6535-2

(31-6535-2

(. 0039mfd)»

0>

(30-1263-46(4700mmf)»

®

(. 022mfd)*

(30-1246-26(3

REPLACEMENT DATA

AEROVOXPART No.

P288N-22NPO-DI3.3

BPD-001

P288N-22BPD-00068BPD-001NPO-SI3.3BPD-00047BPD-001BPD-00068P288N-1BPD-001DI-560BPD-001BPD-001DI-5BPD-02V84C6D47-10?P488N-047BPD-01DAC-26P288N-1BPD-0047BPD-00047BPD-001P288N-1BPD-OOI5

BPD-0022BPD-0033DAC-26BPD-0022P488N-0068P288N-15P488N-1P1088N-0015P488N-033BPD-004V84C6D4-10%1469-0000471469-00039P488N-01P288N-22DAC-26V84C4S22-105!

F688N-022BPD-001

CENTRALABPART No.

DTZ-3R3829-3829-3829-6DD-102829-6

DD-681DD-102TCZ-3R3DD-471DD-102DD-681DF-104DD-102DD-561DD-102DD-102DD-050DD-203

DD-503DD-103DD-822DF-104DD-472DD-471DD-102DF-104DD-152

DD-222DD-332DD-822DD-222D6-682

DF-104DD-152DD-303DD-392

TCZ-47D6-391DD-103

DD-822DD-203

DD-203DD-102

CORNELL-DUBILIERPART No.

CUB2P22C10V33C

BYA10D1

CUB2P22BYA10T68BYA10D1C10V33CBYA10T47BYA10D1BYA10T68CUB2P1BYA10D1L10T56BYA10D1BYA10D1L10V5BYB6S2PM6D47CUB4S47BYA10S1HVE16D8CUB2P1BYA10D47MBYA10T47BYA10D1CUB2P1BYA10D15

BYA10D22BYA10D33HVE16D8BYA10D22CUB6D68CUB2P15CUB4P1COB10D15CUB4S33BYA10D4PM6D422H5Q4722R5T39CUB4S1CUB2P22HVE16D8PM4S22

CUB6S22BYA10D1

ELMENCOPART No.

1DP -3-224CCTO-3H3CV-1CV-1

CCD-102

1DP -3-224CCD-681CCD-102CCTO-3R3CCD-471CCD-102CCD-6812DP-3-104CCD-102CCD-561CCD-102CCD-102CCD-050CCD-2036DP-1-4724DP-3-473CCD-103CCD-8222DP-3-104CCD-472CCD-471CCD-1022DP-3-104CCD-152**CCD-222CCD-332CCD-822CCD-2226DP-1-6821DP-3-1544DP-3-10416DP-1-1524DP-2-333CCD-3926DP-1-392

CM-20B-470KCM-20B-391K4DP-1-1032DP-3-224CCD-8224DP-2-223

8DP-2-223CCD-102

MALLORYPART No.

GEM-2022CNO-522CT565CT565

B-210

GEM-2022B-368B-210CNO-522B-347B-210B-368GEM-201B-210B-356B-210B-210GP550B-120JL-247GEM-4147B-110B-282GEM-201B-247B-347B-210GEM-201B-215

B-222B-233B-282B-222GEM-6268GEM-2015GEM-401GEM-10215GEM-4133GP239GEM-1624MCB225MCB243GEM-4UGEM-201B-282GEM-1612

GEM-6122B-210

SPRAGUEPART No.

2TM-P2210TCC-V33

5HK-D10

2TM-P225GA-T685HK-D1010TCC-V335GA-T475HK-D105GA-T682TM-P15HK-D105GA-T565HK-D105HK-D1010TS-V505IIK-S206TM-D474TM-S475HK-S106TM-D82TM-P15HK-D475GA-T475HK-D102TM-P15HK-D15

5HK-D225HK-D336TM-D85HK-D226TM-D682TM-P154TM-P110TM-D154TM-S335HK-D406TM-D4MS-447MS-3394TM-S12TM-P226TM-D84TM-S22

6TM-S225HK-D10

' Use 180n resistor in series with tenNote 1. Some versions may use 1500O with

All wattages

ITEMNo.

R8R9RIORUR12R13R14R15R16R17R18R19R20H2IR22R23R24R25R26R27R28R29R30

RATING

22Kmoon27Klooon47O180K15Kmoon220K22K330SJ33012120B3300B680K18KIDE150K6 soon100K220K180011 2W4100SJ 7W

REMARKS

B3-1335-149

R3R3R3R3R3R3R3R3R4R4R4R4R4R4R4'R4R4R4R5iR5:R5R5:

* Alternate value-Note 1. Not used in some versions.Note 2. Run 4 and later use 5600n :Note 3. Not used in Ch. 10L41, U.

ITEMNo.

LIL2L3L4L5L6L7L8L9L10LllL12A

BL13L14L15L16LJ7LIBL19

USE

47. 25MC Trap Coll47. 25MCTrap Coll41. 25MC Trap CoilRF Choke1st Video IF Coil2nd Video IF3rd Video IF4th Video IFResonant ChoiceResonant ChokeShunt Peaking CoilSound Take-Off4. SMC TrapShunt Peaking CollSeries Peaking Coil2nd Sound IFQuadrature CoilRF ChokeRF ChokeFil. Choke

PHILCOPART No.

32-4645-3232-4645-1932-4645-3432-4645-4132-4645-3632-4686-2232-4686-232-4686-332-4674-132-4645-732-4762-832-4688-9

32-4762-832-4762-1032-4745-232-4644-2032-4112-6232-4112-6232-4645-40

TRAr

ITEMNo.

L20

DC RES.

PRI.150!)

SEC.

PHILCOPART No.

32-4754-3

HolldoPART

ITEMNo.

L21

RATINGS

CURRENT(Measured)

.310A

DC RES.

4m

INDUCTANCE(0 CURRENT

1000 'X.I

1.3 Hy.

PHPAI

32-8

TR>

ITEMNo.

Tl

RATING

PRI.117V®1. 7A

SEC. 1120V®

1.17A(AC)

SEC. 26.3V®SAtap®2.7VA®

PHIL(PART

32-8902

(J> Ch. 10L41, U use Part »32-8897-l.

PARE 1O

SYLVANIA

jtput

TYPE

6BQ56DR76CG76DQ6A6DA41G3GT/1B3GT

§ Use insulating tube.Part #30-2590-56.

PARTS LIST AND DESCRIPTIONSCONTROLS

IA

-17(8

NOTES

(J> "Silver Screen 85 "

ITEMNo.

H1ABC

R2AB

H3ABC

R4AB

R5AB

R6

R7AB

RATING

RESIST-ANCE

l.SmegImegAritch200KShaft75 KShaftBushing50KShaft15 KShaft1500(2

180(2 stop100K3 meg

WATTS

2i

i

i

i2(WW)

1(WW)

|

REPLACEMENT DATAPfflLCOPART No.

33-5592-49

33-5593-24

33-5593-25

33-5593-30

33-5574-7

33-5591-20

33-5595-3

CENTRALABPART No.

B-46Not Heq.B-35Not Req.Not Req.B-31Not Req.WW-153Not Req.

CLAROSTATPART No.

A47-200K-SFS-3A47-75K-SFS-3Not Req.A47-50K-SFS-3A58-15KFKS-1/439-1500 *

IRCPART No.

011-129Not Req.Qll-125Not Req.Not Req.011-123Not Req.WPK15000Not Req.112-1500 *

MA1LORYPART No.

* UE4069-S

U43Not Req.RU753LSS-3500SL38TA54LNot Req.R15MLNot Req.FL-15K*

INSTALLATION NOTES

ContrastVolumePush-Push Off -OnBrightness

Vert. Hold

Horiz. Hold

Width

Vert. Lin. , Note 1

Horiz. Freq.Height

• Use 180(2 resistor In series with terminal. . "STA-LOC" Equivalent: FA155L, RUP16L, DS1125Note 1. Some versions may use 1500(2 with 300(2 stop (Part #33-5591-17).

ITEMNo.

T2T3

T4

USE

Vert. OutputYoke-Horlz. (24MH)(110°)-Vert. (37MH)Alt. YokeAlt. YokeRear Cover, Clamp,& Centering Assy.Rear Cover, Clamp,& Centering Assy.Horiz. Output

PHILPART

32-882976-10501

76-1050176-1050176-11644

76-10513

32-8899

(J> Use 8 to 1 turns ratio. (i® Used in Ch. 10L41, U. (j® Used in Ch. 10L42, U.

TR

RESISTORSAll wattages 1/2 watt, or less, unless otherwise listed.

SPRAGUEPART No.

rVLS-1431.1'8TVLS-4576 «

TVL-3928

NOTES

Note 1Note 2

Note 3

ITEMNo.

R8R9RIORllR12R13R14HISR16R17R18H19R20R21R22R23R24R25R26R27R28R29R30

RATING

22K1000(227K1000(247(2180 K15K1000(2220K22K330(2330(2120(13300(2680 K18KIDE150K6800(2100K220K1800(2 2W4100O 7W

REMARKS

#33-1335-149* Alternate value.

ITEMNo.

R31R32R33R34R35R36R37R38R39R40R41R42R43R44R45R46R47R48R49R50R51R52R53

RATING

88n22K150(2470S21500(2180K6800(2 2W15 K270(2 5%100(2680(2 2W270S2 1W47K3.3meg12meg2. 2meg470 K1. 8meg3.9meg6800(24300(2 5%12meg22K 5% 1W

REMARKS

0>

(8. 2meg)»

»66-24382-40

I PhilcoPart Number.

ITEMNo.

R54R55R56R57R58R59R60R61R62R63R64R65R66R67R68R69R70R71R72H73R74H75R76

RATING

1. 5meg33K100(2l.Smeg470K560K100K 1W680(2680(24£2 Cold10K1W1000(256 K2. 7meg5600(2 2W100K 1W180K 1W1000(24700(2470K5.6(23000(2 7W390(2 1W

REMARKS

*33-1343-19

*66-2565340 @

133-1366-3 ®133-1363-36

MAUORYPART No.

GBM-2022CNO-522CT565CT565

B-210

GEM-2022B-368B-210CNO-522B-347B-210B-368GEM-201B-210B-356B-210B-210GP550B-120JL-247GEM-4147B-110B-282GEM-201B-247B-347B-210GEM-201B-215

B-222B-233B-282B-222GEM-6268GEM-2015GEM-401GEM-10215GEM-4133GP239GEM-1624MCB225MCB243GEM-411GEM-201B-282OEM-maGEM-6122B-210

SPRAGUEPART No.

2TM-P2210TCC-V33

5HK-DIO

2TM-P225GA-T685HK-D1010TCC-V335GA-T475HK-D105GA-T682TM-P15HK-D105GA-T565HK-D105HK-D1010TS-V505HK-S206TM-D474TM-S475HK-S106TM-D82TM-P15HK-D475GA-T475HK-D102TM-P15HK-D15

5HK-D225HK-D336TM-D85HK-D226TM-D682TM-P154TM-P110TM-D154TM-S335HK-D406TM-D4MS-447MS-3394TM-S12TM-P226TM-D84TM-S22

6TM-S225HK-D10

.Note 1. Not used in some versions.Note 2. Run 4 and later use 5600(2 3W in this application.Note 3. Not used in Ch. 10L41, U.

COILS (RF-IF)

ITEMNo.

LIL2L3L4L5L6L7L8L9L10LllL12A

BL13L14L15L16L17L18L19

USE

47. 25MC Trap Coil47. 25MC Trap Coil41. 25MC Trap CoilRF Choke1st Video IF Coll2nd Video IF3rd Video IF4th Video IFResonant ChokeResonant ChokeShunt Peaking CoilSound Take-Off4. SMC TrapShunt Peaking CoilSeries Peaking Coil2nd Sound IFQuadrature CollRF ChokeHF ChokeFil. Choke

REPLACEMENT DATA

PHILCOPART No.

32-4645-3232-4645-1932-4645-3432-464S-4132-4645-3632-4686-2232-4686-232-4686-332-4674-132-4645-732-4762-832-4688-9

32-4762-832-4762-1032-4745-232-4644-2032-4112-6232-4112-6232-4645-40

GromerPART No.

19-1001

19-3001

19-4201

19-420119-3330

19-100519-1005

MeissnerPART No.

19-1001

19-3001

19-4201

19-420119-3330

19-100519-1005

MeritPART No.

BC-562

TV-189

TV-197

TV-197TV-200

BC-566BC-566

MillerPART No.

4604

6175

6154

61546132

46124612

PART No.

VP-9

VP-7

NOTES

Includes C14

22uh3uh220uh

220uh330uh

9uh9uh

TRANSFORMER (HORIZ. OSC.)

ITEMNo.

L20

DC RES.

PRI.150(2

SEC.

REPLACEMENT DATA

PHILCOPART No.

32-4754-3

HolldorsonPART No.

MeritPART No.

MillerPART No. PART No.

ThordorsonPART No.

NOTES

Horiz. Stabilizer

FILTER CHOKE

ITEMNo.

L21

RATINGS

CURRENT(Measured)

.310A

DC RES.

41(2

INDUCTANCE(0 CURRENT

1000 'X.l

1.3 Hy.

REPLACEMENT DATA

PHILCOPART No.

32-8710-8

HolldorsonPART No.

26C44

MerilPART No. PART No.

SlancorPART No.

ThordarsonPART No.

26C44

TriodPART No.

C-28X

TRANSFORMER (POWER)

imi 5% ® 5000V in this

ITEMNo.

Tl

RATING

PRI.

117V ®1.7A

SEC. 1

120V®1.17A(AC)

SEC. 2

6.3V®8A tap®2.7VA®

REPLACEMENT DATA

PHILCOPART No.

32-8902-1 CD

HolldorsonPART No.

MeritPART No.

RomPART No.

StancorPART No. PART No.

TriadPART No.

ITEMNo.

T5

IMPEDANCE

PRI.

4300!!SEC.

3-4(2

PHILCOPART No.

32-8862-2

ITEMNo.

SP1

TYPE

SIZE

4" x 6"

FIELD

PM

V. C. IMP.

3-4(2

ITEMNo.

KlK2K3

K4

K5K6

K7

USE

2nd Video IF CathodeAudio Detector GridSync Sep. Grid

Vert. Integrator

Vert. FeedbackHoriz. AFC Network

Horiz. Mult. Network

ITEMNo.

MlM2M3

RATING

CURRENT(Measured)

.310 A

.310A

PHILCOPART No.

34-8048-1 3) ®34-8048-1 CIS34-8037 ®

ITEMNo.

M4

TYPE RATINGPHPAR

FUSE

2" Length »26 Wire

ITEMNo.

MS

M6

PART NAME

TunerTunerTunerTunerTunerTunerTunerTunerSwitchSwitchSwitchSwitchMagnetPrinted BoardPrinted BoardPrinted Board

PHILPART

76-10524-76-10525-76-10524-76-10525-76-10524-76-10525-76-10526-76-10526-42-2075-142-2117-176-11140-142-210876-1097054-699354-699454-6994-2

(J) Ch. 10L41, U use Part #32-8897-1.

High Voltage LeadShielded Hook-up Wire

General-use Unshielded Hook-up 1

Power Cord (Interlock Type).....300& Tuner Input Lead30012 Antenna Lead-inAntenna Rotor Cable

IPTIONSTRANSFORMERS (SWEEP CIRCUITS)

^0.

0

1

MALLORYPART No.

• UE4069-S

U43Not Reg..RU753LSS-3500SL38TA54LNot Req.R15MLNot Req.FL-15K •

INSTA1LATION NOTES

ContrastVolumePush-Push Ofl-OnBrightness

Vert. Hold

Horiz. Hold

Width

Vert. Lin. , Note 1

Horiz. Freq.Height

ITEMNo.

T2T3

T4

USE

Vert. OutputYoke-Horiz. (24MH)(110°)-Vert. (37MH)Alt. YokeAlt. YokeRear Cover, Clamp,& Centering Assy.Rear Cover, Clamp,Si Centering Assy.Horiz. Output

REPLACEMENT DATAPHILCOPART No.

32-8829-576-10508-14

76-10508-13(276-10508-16(176-11644-1 (3)

76-10513-2 ®

32-8899-1

HolldorsonPART No.

26S75 0>

MeritPART No.

RomPART No.

RogersPART No.

StoncorPART No.

ThordarsonPART No.

26S75 (J>

PART No.

A-108X

I Use 8 to 1 turns ratio.) Used in Ch. 10L41, U.) Used in Ch. 10L42, U.

"STA-LOC" Equivalent: FA155L, RUP16L, DSI125

icrwise listed.

) Used in Ch. employing 17DRP4 or 21EVP4 picture tube.) Used in Ch. employing 17DAP4 picture tube.

TRANSFORMER (AUDIO OUTPUT)

ITEMNo.

T5

IMPEDANCE

PRI.

4300SJSEC.

s-4n

REPLACEMENT DATAPHILCOPART No.

32-8862-2

HolldorsonPART No.

24S51

MeritPART No.

A-2930

RamPART No.

AU-601

PART No.

A-3877

ThordarsonPART No.

24S51

TriodPART No.

S-3X

NOTES

ITEMNo.

R54R55R56R57R58R59R60R61R62R63H64R65R66R67H68R69R70R7IR72R73R74H75R76

RATING

1. 5meg33 K100!!1. 5 meg470K560K100K 1W68017680Q4tJ Cold10K1Wlooon56K2. 7meg5600SJ 2W100K 1W180K1WlOOOi!4700S1470 K5.61!3000ii 7W390SJ 1W

REMARKS

»33-1343-19

*66-2565340 @

J33-1366-3 ®»33-1363-36

SPEAKER

ITEMNo.

SP1

TYPE

SIZE

4"x6 "

FIELD

PM

V. C. IMP.

3-4(2

REPLACEMENT DATA

PHILCOPART No.

36-1676-8

QUAMPART No.

46A1

NOTES

COMPONENT COMBINATIONS

ITEMNo.

raK2K3

K4

K5K6

K7

USE

2nd Video IF CathodeAudio Detector GridSync Sep. Grid

Vert. Integrator

Vert. FeedbackHoriz. AFC Network

Horiz. Mult. Network

DESCRIPTION

15mmf, 68ft150mmf, 1SK390mmf, 3300mm!, 220K, 330K,imeg, 1. 5megISOmmf, 600mmf, 4000mmf,SOOOmmf, 10 K, 33 K, 90 KISOOmmf, 2200mmf, 33K, 68K82mmf, 220mmf, lOOOmmi,50000mm!, 82K, 150K, 680K,1. 2meg390mml, 820mmf, 3300mmf,4700!i, 6800O, 39K

PHILCOPART No.

30-6039-130-6031-130-6532-3

30-6030-7

30-6509-130-6035-2

30-6531-2

REPLACEMENT DATA

Sprague PRC-12Sprague PRC-7

Sprague V-23

Sprague C-ll

DATA

MeritPART No.

BC-562

TV-189

TV-197

TV-197TV-200

BC-566BC-566

MillerPART No.

4604

6175

6154

61546132

46124612

PART No.

VP-9

VP-7

NOTES

Includes C14

22uh3uh220uh

220uh330uh

9uhBub

RECTIFIERSITEMNo.

MlM2MS

HATING

CURRENT(Measured)

.310A

.310A

REPLACEMENT DATA

PHILCOPART No.

34-8048-1 G> ®34-8048-1 (J) ®34-8037 3>

FEDERALPART No.

HF-504 ®HF-504 ®K1615 (3)

INTERNATIONALPART No.

SD-500 ®SD-500 ®SD-91 ® ®

SARKESTARZIANPART No.

40K@40K®

SYLVANIAPART No.

SR500 @SR500 ®

NOTES

CD Ch.IOMl use 5U4GBS Silicon type.

Dual Selenium Diode3) Two Required

>clO n

c >

S3

FUSES

ITEMNo.

M4

TYPE RATING

REPLACEMENT DATAPHILCOPART No.

FUSE

2" Length f26 Wire

HOLDER

LITTELFUSEPART No.

FUSE HOLDER

BUSSPART No.

FUSE HOLDER

MISCELLANEOUS

Z. OSC.)

PART No.ThordarsonPART No.

NOTES

Horiz. Stabilizer

VIENT DATA

0. PART No. PART No. PART No.

26C44

TriodPART No.

C-28X

ITEM

MS

M6

PART NAME

TunerTunerTunerTunerTunerTunerTunerTunerSwitchSwitchSwitchSwitchMagnetPrinted BoardPrinted BoardPrinted Board

PHILCOPART No.

76-10524-376-10525-476-10524-576-10525-376-10524-476-10525-576-10526-376-10526-242-2075-142-2117-176-11140-142-210876-1097054-699354-699454-6994-2

NOTES

VHF (T-100D) Ch. 10L43VHF (T-100E) Ch. IOL41VHF (T-100A) Ch. 10L42VHF with UHF provisions (T-101D) Ch. 10L43UVHF with UHF provisions (T-101E) Ch. 10L41UVHF with UHF provisions (T-10IA) Ch. IOL42UUHF (T-28D) Ch. 10L41U, 10L42UUHF (T-28C) Ch. 10L43URange (SPOT Slide Type)Manual-Remote, Ch. 10L42Touch Tuning, Pushbutton, Ch. 10L42Stepper, Remote TuningBeam Alignment , Used on some picture tubesVideo IFMain, Run 1Main, Run 2 (Red Dot)

WIRING DATA

WER)MENT DATA

PART No.Sloncor

PART No. PART No.Triod

PART No.

High Voltage Lead Use BELDEN No. 8869Shielded Hook-up Wire Use BELDEN No. 8885 (Single Conductor)

8738 (Two Conductor)General-use Unshielded Hook-up Wire Use BELDEN No. 8530 (Solid) Available in Ten Colors

8524 (Stranded) Available in Ten ColorsPower Cord (Interlock Type) Use BELDEN No. 8874300S2 Tuner Input Lead Use BELDEN No. 8225300O Antenna Lead-In Use BELDEN No. 8230 or 8275Antenna Rotor Cable Use BELDEN No. 8464 (Flat) or 8484 (Round) - 4 Conductor

8485 (Round) - 5 Conductor8488 (Round) - 8 Conductor

05

PAGE 11

PAGE 12

CHASSIS TOP VIEW

MAIN PRINTED BOARD - RESISTOR & INDUCTOR IDENTIFICATIONPAGE 13

1ST AMP6AU6

2ND AMP6AU6

LIMITER-TPJPLER

6CB6 PART132-4779-1

CHANNEL SELECTORRELAY CONTROL

6BJ8

>1.5meg

lOmlH iS I

PART (30-2590-51

VSA — '90K

3000nmf

Aa

<< l\.2mes

68K1W

ISOOOmml

29

PART 152-4778-1.

I,V J

<

SOOOmmf

PRE-AMP

6AU6

it5

2 /^PART

5^ »32-47_82-l68!

nrmml 5

iTl3 5

|

Imeg

;

29

k] 33mmf

TRANSDUCER iPARTH6-1686 S2.2meg

10*

-> 470K

•68K

; 10000- mmf ^

I I 2

"PREAMPLIFIEROSC

T1605PART <34-6001-25

CI-5.TV

CHANNEL SELECTORRELAYPART 142-4038-1

IBI-STABLE)PART»42-4039-1

330VSOUND RELAYIBI-STABLE]PART»42-1039-I

'BATTERY I5~4VI CHANNEL SELECTOR(40KC)

A PHOTOFACT STANDARD NOTATION SCHEMATIC

© Howard W. Sams & Co., Inc. 1959 REMOTE CONTROL RC-50

TUNER 76-10524-3 - LEFT SIDE

•oI

nI

c >"

O5

TUNER 76-10524-3 - RIGHT SIDEPAGE 15

5mmf f .25mmf

MIXER PLATE COIL

t

USED ONLY IN TUNERSWITH INDIVIDUAL FINE ionTUNING ~~-— ,-AA/V-

IF OUTPUT

UHF TUNER B-I- SOURCE

TO UHF DIAL LAMP

<-FILAMENTS

CHANNEL SELECTOR SWITCH SHOWN IN CHANNEL 13 POSITION

A PHOTOF£~™PtR° rc0":'°LSCHEMATIC VHF TUNER with UHF Provisions 76-10525-3, -4, -5 (T-101A, D, E)

CircuiTrace Numbers 13 thru 54

PIN-3

A Howard W. Sami CIRCUITRACE* Photo MAIN PRINTED BOARDA R R O W S INDICATING TUBE LOCATIONS AREPOINTING TO PIN 1 UNLESS OTHERWISE INDICATED

•oX

K> O- IC >- t/>_• t/jO t/>

PAGE 17

RESISTANCE MEASUREMENTSITEM

VI

V2

V3

V4

V5

V6

V7

V8

V9

V10

Vll

V12

V13

V201

V202

TUBE

6DE6

6DE6

6AM8A

6AW8A

6EA8

6CS6

6BQ5

6DR7

6CG7

6DQ6A

6DA41G3GT1B3GT

17DRP4

6BC8

6X8

ITEM TUBE

Pin!

1. 5meg

180K

1200

On

t24K

15K

100(3

t425n

tlOK

NC

NC

Pin 2

47 n

»68n

.2n

1. Imeg

5.50

2700

1000

2. Imeg

1.9meg

.10

NC

Pin 3

On

.10

1 36000

t30K

t25K

On

2700

2. Imeg

10000

TP

1350K

Pin 4

.in

On

.in

On

.10

.10

.10

.in

.in

tllK

NC

Pin5

»1000n

t!400n

On

.in

On

H80K

On

On

Oo

700K

tl.2o

Pin 6

tlOOOo

1 14000

t3600o

68n

t25K

tlOK

NC

• t3. 5meg

t45K

TP

NC

Pin?

00

200K

.20

680K

470 n

30

t950n

68K

•100K

00

.10

Pin 8

3300 n

t3000n

43000

NC

•50K

10000

On

00

PINS 1 THRU 8 HAVE INFINITE RESISTANCE

On

tlSOOn

On

Pinl

NC

270K

10KPin 2

450K

INF

t68K

Pin 3

On

.in

On

Pin 4

NC

00

.10

Pin 5

t280K

INF

OnPin 6

200K

1. 4meg

220KPin 7

.10

On

f62KPin 8

Pin 9

On

t590fln

2. Imeg

t680o

• 4500

On

TOP CAPt 13n

TOP CAPt360n

3n

U7KPin 9

1 THIS READING WILL VARY DEPENDING UPON THE CONDITION OF THE ELECTROLYTIC IN THE CIRCUIT.. THIS READING WILL VARY. CONTROL SET FOR NORMAL OPERATION.„ MEASURED FROM PIN 7 OF V2.t MEASURED FROM 275V SOURCE. NC NO CONNECTION.t MEASURED FROM PIN 3 OF Vll. TP TIE POINT.

SW ONVOLUME LV TRANSFORMERCONTROL (Tl) PRIMARY

WINDING

CABLECABLE

POWER TUNING & CABLE CIRCUIT USED IN CHASSIS 10L42

.N£TS9SCHEMATIC ALTERNATE POWER TUNING

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HORIZLINEARITY

CENTERING VERTLINEARITY

RANGESWITCH

VERT HORIZ / HORIZBRIGHTNESS HOLD HOLD WIDTH FREQ HEIGHT

CABINET-REAR VIEW

HORIZONTAL SWEEP CIRCUIT ADJUSTMENTSTurn the set on and tune in a station signal. Allow the receiver to warmup. Connect a clip lead across the Horizontal Stabilizing coil (L20).

Set the Horizontal Frequency control (R7) until the picture appears tofloat back and forth across the screen.

Remove the clip lead from across L20 and adjust the Horizontal Fre-quency slug (Bl) until the picture synchronizes horizontally.

DISASSEMBLY INSTRUCTIONS

CHASSIS REMOVAL MODEL H3412L

1. Remove 4 push-on type knobs from front of cabinet.

2. Remove 8 metal screws holding rear cover. Remove therear cover.

3. Remove tuner connections, yoke plug, speaker leads, ACinterlock from clock, picture tube socket connecting plug,video lead, and HV lead. (CAUTION: HV lead must beunplugged from 1G3 socket by opening 1G3 access door.)

4. Remove 2 metal screws holding rear control mountingbracket.

5. Remove 2 metal screws holding rear cabinet brace.

6. Remove 2 nuts holding front control bracket.

7. Remove 2 metal screws holding rear cover interlock.

8. Remove 4 chassis bolts from bottom of cabinet.

9. Remove chassis.

10. Remove 3 metal screws on bottom of cabinet holding thetuner. Remove tuner.

PICTURE TUBE HOUSING DISASSEMBLY

1. Remove 2 metal screws holding trim at bottom of picturetube.

2. Remove spring holding trim strip around picture tube.

3. Remove 2 screws holding metal shell strap. Removestrap and front glass.

4. Remove 2 brass plugs, one on either side of shell. Re-move 2 metal screws now exposed.

5. Remove 2 screws at bottom of picture tube holding rearshell. Remove rear shell.

6. Remove yoke and picture tube socket.

7. Loosen picture tube mounting strap bolts.

8. Remove picture tube.

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