service manual bpm-250 · service manual bpm-250 stereo preamp mixer ... one source’s pitch...
TRANSCRIPT
Page 1
SERVICE MANUALBPM-250
Stereo Preamp Mixer
CONTENT’S:Connections & Operations:.......................................................Page 2-5
Specifications:..............................................................................Page 5
Parts Lists:....................................................................................Page 5
PCBs:..........................................................................................Page 6-7
Schematics....................................................................................Page 8
Gemini Sound Products Corp.120 Clover Place P.O. Box 6928
Edison, NJ 08818-6928732-738-9003 (Phone) • 732-738-9006 (Fax)
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4
25
23 24
26
28 275
1
18
29
20
21
21
21
7
6
88
7
6
16
17
6
7
8
9 9 9
22
121110
2
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30
38 38
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34 34
33 33
32 32
31 31
36 36
35
3738
GRO
UND
LIFT LI
FT
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Connections1. Before plugging in the power cord, make sure that the VOLTAGE
SELECTOR (30) switch is set to the correct voltage.
NOTENOTENOTENOTENOTE: This product is double insulated and not intendedto be grounded.
2. Make sure that the POWER (1) switch is in the off position. ThePOWER LED (2) will be off.
3. The BPM-250 is supplied with 3 sets of output jacks. The MASTEROUTPUT (38) jacks are used to connect to your main amplifier. TheOUTPUT REC (40) jacks can be used to connect the mixer to therecord input of your recorder enabling you to record your mix. TheOUTPUT BOOTH (39) jacks allow you to hook up an additionalamplifier.
4. The DJ MIC (3) input (found on the front panel) accepts a 1/4" orXLR connector and accepts only unbalanced microphones.
5. On the rear panel are 2 stereo PHONO (32, 34) inputs, 2 stereoLINE (31, 33) inputs and 1 stereo PHONO/LINE (36) input. ThePHONO/LINE (35) switch enables you to set the (36) input to Phonoor Line. The phono inputs will accept only turntables with a magneticcartridge. A GROUND (37) screw for you to ground your turntablesis located on the rear panel. The stereo line inputs will accept anyline level input such as a CD player, a cassette player, etc.
6. Headphones can be plugged into the front panel mountedHEADPHONE (4) jack.
7. The BPM-250 comes with a front panel BNC LIGHT (5) jack. Thisjack is for use with a gooseneck light like the Gemini GNL-700.
Using the Ground Lift SwitchDepending on your system configuration, sometimes applying theground will create a quieter signal path. Sometimes lifting the groundcan eliminate ground loops and hum to create a quieter signal path.
1. With the mixer on, listen to the system in idle mode (no signalpresent) with the ground applied (the GROUND LIFT SWITCH (38)in the left position).
2. Then turn the power off before moving the GROUND LIFTSWITCH (38). Lift the ground by moving the GROUND LIFT SWITCHto the right, turn the power back on and listen to determine whichposition will provide a signal devoid of background noise and hum.Keep the GROUND LIFT SWITCH in the ground position if the noiselevel remains the same in either position.
CAUTION: DO NOT TERMINATE THE AC GROUND ON THE POWERMIXER IN ANY WAY. TERMINATION OF THE AC GROUND CAN BEHAZARDOUS.
Operation1. POWER ON: Once you have made all the equipment connections to
your mixer, press the POWER SWITCH (1). The power will turn onand the POWER LED (2) will glow RED.
2. CHANNEL 1: The GAIN (6), HIGH (7), MID (8), and LOW (9),controls allows you to fully adjust the selected source. Switch #(10) allows you to select either the DJ MIC (3) or the PHONO/LINE(36) input. The CHANNEL (13) slide controls the output level of thischannel.
3. MAIN CHANNEL SECTION: To assign an input source to a channel,first set the PHONO/LINE (11,12) switches to their appropriatepositions. To make the proper adjustments to your music, set theGAIN (6), HIGH (7), MID (8) and LOW (9) controls and position theCHANNEL (14, 15) slide.
NONONONONOTETETETETE: There is Low, Mid and High equalization for eachchannel with an extremely wide range of adjustmentgiving you a smoother mix.
SUGGESTION: You can use the Cut Features on each channel toremove Low, Mid and/or High to create special effects.
4. CROSSFADER SECTION: The CROSSFADER (26) allows the mixingof one source into another. The left side of the CROSSFADER (26) ischannel 2 and the right side is channel 3. The CROSSFADER (26) inyour unit is removable and if the need arises can be easily replaced.Crossfader units are available in three varieties. Part # RF-45 (whichis identical to the crossfader supplied with the mixer) has a 45 mmtravel from side to side. Part # RF-30 is available with a 30 mm traveldistance. Also available is the PSF-45 with a special curve designedfor scratch mixing. Just purchase one of these crossfader unitsfrom your Gemini dealer and follow these instructions:
1. Unscrew the outside FADER PLATE SCREWS (B). Do nottouch the INSIDE SCREWS (C).
2. Carefully lift the fader and unplug the CABLE (D).
3. Plug the new fader into the cable and place it back in themixer.
4. Screw the fader to the mixer.
5. BPM DISPLAY: There are BPM DISPLAYS (23, 24) for Channel 2 andChannel 3. They update approximately every beat and digitallydisplay the Beats Per Minute allowing you to match the beatsvisually. BPM DISPLAY (23) reflects the Beats Per Minute ofChannel 2, and BPM DISPLAY (24) reflects the Beats Per Minute ofChannel 3.
NONONONONOTETETETETE: A [- -] reading will appear on the BPM DISPLAY ifthe track has unclear beats. The [- -] reading will alsoappear if there is no signal present.
6. The BEAT OFFSET INDICATORS (25) light when the tracks ofChannel 2 and Channel 3 are within 11 BPMs of each other anddisplay how aligned the beats for Channel 2 and Channel 3 are.When the RED LEDs light, the beats are not aligned. When theYELLOW LEDs light, the beats are almost aligned. When the GREENLED lights, the beats are aligned perfectly.
NOTENOTENOTENOTENOTE: If the diffence between the two channel’s beatsexceed 11 BPM, the BEAT OFFSET INDICATORS will notlight.
SUGGESTION: You can use the BPM DISPLAYS to determinewhich tracks have similar or the same Beats Per Minute. Whenmixing two tracks with similar Beats Per Minute, you can useone source’s pitch control to align the Beats Per Minute withthe other source’s BPM. The BPM DISPLAYS and the BEATOFFSET INDICATORS update every beat and will reflect thechange in BPM and indicate when the beats are aligned.
NOTENOTENOTENOTENOTE: Beat mixing is a skill that requires practice. Notevery track has a strong beat, and beat mixing worksbest with tracks with clear and strong beats.
7. OUTPUT CONTROL SECTION: The level of the MASTER OUT (38) iscontrolled by the MASTER (18) control. The BALANCE (17) controlwill allow the Amp Out signal to be balanced between the left andright speakers. The BOOTH (16) control adjusts the level of theBOOTH OUTPUT (39). HINT: The booth OUTPUT is used by someDJs to run monitor speakers in their DJ booth. You can also use it asa second ZONE or AMP output.
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NOTENOTENOTENOTENOTE: The RECORD OUT (40) RECORD OUT (40) RECORD OUT (40) RECORD OUT (40) RECORD OUT (40) has no level control.The level is set by the channel slides and the gaincontrols of the selected channel. The tonal qualities areset by the bass, treble and mid controls of that samechannel.
8. TALKOVER SECTION: The purpose of the talkover section is to allowthe program playing to be muted so that the mic can be heard abovethe music. When the TALKOVER (19) button is pushed, theTALKOVER INDICATOR will glow and the volume of all sourcesexcept the Mic or whatever is connected to the PHONO/LINE (36)input are reduced by -16 dB.
9. CUE SECTION: By connecting a set of headphones to theHEADPHONE (4) jack, you can monitor any or all of the channels.Select the correct CUE (21) button or buttons and their respectiveCUE LED (29) indicators will glow. Use the CUE LEVEL (20) controlto adjust the headphone volume without effecting the overall mix. Bysliding the CUE PGM PAN (22) control to the left you will be able tomonitor the assigned cue signal. Sliding to the right will monitor thePGM (program) output.
10. DISPLAY: The peak hold, dual function DISPLAY (27) indicates eitherthe MASTER (38) output left and right levels or the channel 2 andchannel 3 levels. You can choose the option you want by pressingthe DISPLAY (28) button.
NONONONONOTETETETETE: When the DISPLADISPLADISPLADISPLADISPLAY (27)Y (27)Y (27)Y (27)Y (27) is in the channel 2/channel 3 display mode, by adjusting the individualchannel gain and tone controls, you can increase ordecrease the signal to match the other channel’s signal.The channel slides and crossfader have no effect on thedisplay readings.
SpecificationsINPUTS:
DJ Mic....................................................1.5mV 2Kohm unbalanced
Phono.........................................................................3mV 47Kohm
Line.......................................................................150 mV 27Kohm
OUTPUTS:
Amp/Booth......................................................0 dB 775mV 400ohm
Max..............................24V Peak to Peak
Rec...........................................................................225mV 5Kohm
GENERAL:
Low...........................................................................+ 12/-26dB
Mid............................................................................+ 12/-26dB
High..........................................................................+ 12/-26dB
Gain (Mic)........................................................................0 to -40dB
Gain (Chnls 1-3)..............................................................0 to -20dB
Frequency Response....................................20Hz - 20KHz +/- 2dB
Distortion................................................................................0.02%
S/N Ratio...............................................................better than 80dB
Talkover Attenuation..............................................................-16dB
Headphone Impedance.........................................................16ohm
Power Source.............................................115/230V 50/60Hz 15W
Dimensions...........................................254mm x 305mm x 112mm
10" x 12" x 4 7/16"
Weight........................................................................6.5 lbs (3 Kg)
Description Part #
Cabinet Parts and Packing
123456789101112
13141516171819202122232425262728293031323334353637
38394041
42434445
Item #
Parts Lists
002-194A021-758B021-969B032-019022-360023-674002-531002-532002-713002-714003-131148-236
148-238148-239003-970003-362003-372003-989A003-993003-969003-711022-305049-206146-710159-167159-171159-216159-201047-468046-024003-548003-510003-612190-062102-007102-025121-003A
111-051A111-046A111-044A110-172A
111-043A111-049A131-081107-015
PANEL CONTROLBRACKET VRPANEL REARCOVER BOTTOMHOLDER X-FADERSWING LEVEL (LONG)KNOB PUSH (SMALL)BUSHING FOR KNOB (SMALL)KNOB SLIDE (BIG)KNOB SLIDE (SMALL)KNOB ROTARY (B)KNOB INLAY (BLACK); BOOTH,BAL,MASTER,CUEKNOB INLAY (RED); GAINKNOB INLAY (GRAY); HIGH,MID,LOWVR INLAYPLATE LEDPLATE DISPLAY (SMALL)HOLDER LEDHOLDER BUSHING LEDHOLDER LED 3f (17mm)HOLDER LED 3f (7mm)PROTECTOR PLATE FOR 115/230V SWITCHPAD FOOTGND SCREWVR DUST PROOF CLOTH (SMALL)VR DUST PROOF CLOTHSWING DUST PROOF CLOTHBNC DUST PROOF CLOTHPCB SUPPORTSCREENSPACEREVA PADSNAP RIVETDRYERPAN-HEAD MACHINE SCREW; PMS 2X4(B)PAN-HEAD MACHINE SCREW; PMS 2.6X4(B)BAND-HEAD TAPPING SCREW/TW-E; BTB-3/TW-3 3X6(AB)BAND-HEAD TAPPING SCREW; BTS-3 3X5(AB)BAND-HEAD TAPPING SCREW; BTS-3 3X6(AB)BAND-HEAD TAPPING SCREW; BTS-3 3X10(AB)BAND-HEAD TAPPING SCREW/TWIN SCREW; BTS-2 3X8(AB) TWINFLAT-HEAD TAPPING SCREW; FTS-3 3X6(AB)FLAT-HEAD TAPPING SCREW; FTS-3 3X12(AB)NUT/WASHER 3mmBAND-HEAD MACHINE SCREW; BMS 3X2X4
162-823162-975
162-978
162-979162-980
PRINTED CIRCUIT BOARD PC626-1; IN/OUTPRINTED CIRCUIT BOARD BPM250-2; (94V0 203.5×241.5mm)PRINTED CIRCUIT BOARD BPM250-5; LINE/PHONOPRINTED CIRCUIT BOARD BPM250-7; BITPRINTED CIRCUIT BOARD BPM250-8; BIT DISPLAY (CEM-1 41×166mm)
Description Part #
Printed Circuit BoardsItem #
12
3
45
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Parts Lists - PCB1 Input/Output
079-003161-105
SILICON DIODE 1N41484P RCA JACK
A104, A105A1, A2, A3, A4
Designators Description Part #
Electrical PartsItem #
12
076-095
076-104
TRANSISTOR 2SC2878
TRANSISTOR 2SA1048 (2SA1317)
A80, A84, A96, A76A21, A51, A119
Designators Description Part #
TransistorsItem #
1
2
074-104INTEGRATED CIRCUIT NJM4558LA21, A51, A119
Designators Description Part #
ICsItem #
1
Parts Lists - PCB2 Main
076-094
079-025082-019
083-069083-097083-076081-004072-091072-097071-103071-084
071-136071-145092-078092-090080-091080-090080-077080-076080-075
TRANSISTOR DTC114TS
ZENER DIODE 1/2 W 10VLEVER SWITCH 4P2C
PUSH SWITCH 2P2C L=12.5PUSH SWITCH 4P2C L=12.53KEY PUSH SWITCH 2P2C L=12.5 P=15mmSLIDE SWITCHSLIDE VR 45mm L=20 10KA×2SLIDE VR 30mm L=15 10KB×2ROTARY VR 16f L=20 50KB×2ROTARY VR 16f L=20 50KA×2
ROTARY VR 16f L=20 20KMN×2 C.CROTARY VR 16f L=20 50KE×2 C.CPHONE JACK 6.3fPHONE JACK 6.3f+ XLRLIGHT EMITTING DIODE (RED) 3.15fLIGHT EMITTING DIODE (GREEN) 5×5LIGHT EMITTING DIODE (GREEN) 2.5×5LIGHT EMITTING DIODE (YELLOW) 2.5×5LIGHT EMITTING DIODE (RED) 2.5×5
Q301, Q401, Q501, Q601D902SW102, SW302, SW502SW401SW601SW501-503SW101VR310-312VR501VR201-203VR402, VR404 VR502VR403VR301-303PJ1J101Red 3.15Green 5x5Green 2.5x6.5Yellow 2.5x6.5Red 2.5x6.5
Designators Description Part #
Electrical PartsItem #
1
23
456789
1011
121314151617181920
074-104
074-113074-111
INTEGRATED CIRCUIT NJM4558L
INTEGRATED CIRCUIT NJM4556LINTEGRATED CIRCUIT LB1412
IC201-204,IC301-303,IC401-404, IC501IC502IC601-602
Designators Description Part #
ICsItem #
1
23
PCB2 - Main
Page 7
PCB1 - Input/Output
Page 6
IC101A4558L
C105222
C106822
R10436K
R105470K
R102820
R106100
R10347K R107
220K
R114220K
C10322/25
C10447/16
C10747/16
C112822
C111222
R112470K
R11136K
R113100
C11447/16
C11347/16IC101B
4558L
C102100P
C109100P R110
47K
R109820 C110
22/25
R1012K2
R1082K2
C1014.7/25
C1084.7/25
L.CH
R.CH
IC102A4558L
C118822
C119223
R1188K2
R119100K
R116180
R11747K
R1212K2
R1272K2
C11647/16
C11747/16
C123223
C122822
R126100K
R1258K2
R128100
C12447/16
IC102B4558L
C115100P
C120100P R124
47K
R123180 C121
47/16
R1151K
R1221K
L.CH
R.CH
R120100
C125100P
C126100P
R1292K2
R1302K2
R.CH
L.CH
IC103A4558L
C130822
C131223
R1348K2
R135100K
R132180
R13347K
R1372K2
R1432K2
C12847/16
C12947/16
C136223
C135822
R142100K
R1418K2
R144100
C13447/16
IC103B4558L
C127100P
C132100P R140
47K
R139180 C133
47/16
R1311K
R1381K
L.CH
R.CH
R136100
C137100P
C138100P
R1452K2
R1462K2
R.CH
L.CH
R14747K
R15247K
R149220
R153220
C14010/25
C13910/25
Q1012SC2878
Q1022SC2878
R1514K7
R1554K7
R150220
R156220
R14868K
R15468KR.CH
L.CH
R15747K
R16147K
R158220
R162220
C14210/25
C14110/25
Q1032SC2878
Q104 2SC2878
R1604K7
R1634K7
R159220
R164220R.CH
L.CH
R1651K
R1661K
R.CH
L.CH
Q105DCT124TS
C1434.7/25 C144
220/16
R167680K
D101IN4148
D102
IN4148
SW101PH\LN
1
PHONEJACK1
R20927K
R25727K
R2152K
R2102K
IC202B4558L
27KR214
C20922P
SW201-1CHANNEL 1
C21047/16
R2015K1
R2055K1
C20110/25
C20610/25
IC201B
4558L
IC201A4558L
C20447/16
C20547/16
VR201-1R202510
R2034K3
R206510
R2074K3
R204100
R208100
C20222P
C20722P
SW202CHANNES 2
56
7
R21633K
R22033K
C21310/25
C21810/25
IC203B4558L
IC203A4558L
C21647/16
C21747/16
VR202-1R2174K7
R2214K7
R218100
R219100
C21422P
C22022P
C20310/25
C20810/25
C21510/25
C21910/25
SW203CHANNEL 3
89
10
R22233K
R22633K
C22110/25
C22610/25
IC204B4558B
IC204A4558L
C22447/16
C22547/16
VR203-1R2234K7
R2274K7
R224100
R225100
C22222P
C22822P
C22310/25
C22710/25
C21247/16
C21147/16
R211100
R21310K R212
100
IC202A
4558L
R3013K6
R3108K2
R3021K5
R3054K7
R30730K
R3031K5
R30930K
C301154
C302154
C305103
C30322P
R3062K4
R30430K
R3085K6
VR302-150KEx2
VR301-150KEx2
VR303-150KEx2
C304562
IC301A4558L
1k51K
R3158K2
R3233K6
R3204K7
R3192K4
R3211K5
R31630K
C316154
C315154
C312682
C31422P
R31830K
R32230K
R3175K6
TR
EB
LE
BA
SS
MID
DLE
C313562
IC301B4558L
R311100
R314100
C310682
C307682
C30847/16
C30947/16
R31224K
R31324K
R3253K6
R3348K2
R3261K5
R3294K7
R33130K
R3271K5
R33330K
C317154
C318154
C321682
C31922P
R3302K4
R32830K
R3325K6
VR305-1 50KEx2
VR304-150KEx2
VR305-150KEx2
C320562
IC302A4558L
R3471K5
R3398k2
R3483K6
R3444K7
R34324K
R3451K5
R34030K
C332154
C331154
C328682
C33022P
R34230K
R34630K
R3415K6
TR
EB
LE
BA
SS
MID
DE
L
C329562
IC302B4558L
R336100
R337100
C326103
C323103
C32447/16
C32547/16
R33524K
R33824k
R3493K6
R3588K2
R3501K5
R353
30K
R35530K
R3511K5
R35730K
C333154
C334154
C337682
C33522P
R3542K4
R352
4K7
R3565K6
VR308-1 50KEx2
VR307-150KEx2
VR309-1 50KEx2
C336562
IC303A4558L
R3721K5
R3638K2
R3713K6
R3684K7
R3672K4
R3701K5
R36430K
C348154
C347154
C344682
C34622P
R36630K
R36930K
R3655K6
TR
EB
LE
BA
SS
MID
DLE
C345
562
IC303B4558L
R360100
R362100
C340103
C339103
C34147/16
C34247/16
R35924K
R36124K
C34310/25
C33810/25
C32210/25
C32710/25
C30610/25
C31110/25
CHANNEL 1
LEVEL
VR311CHANNEL
CHANNEL
LEVEL
-15V
+15V
+15V -15V
-15V+15VGND
INPUTSELECTY
CH1 GAIN
R258220K
12
3
45
6
7
8
12
3
4
8
5
67
CH2 GAIN
12
3
4
5
67
8
12
3
45
6 7
VR310
LEVEL
VR312
1
2
3
45
6
7
8
1
2
3
45
6 7
8
1
2
3
45
67
8
2
3
PH-1/LN1
MASTER OUT
PH-2
PH-3
LN-2
LN-3
REC OUT
BOOTH OUT
INPUTP C B
MAINP C B
CN1
CN2
CN3
CN4
CN5
CN6
CN7
CN8
CN9
CN10
CN11
12
3
45
6
7
8
12
3
45
6 7
8
50KBx2
VR201-2 vr201-2SW201-2
50KBx2
VR202-2
CH3 GAIN50KBx2
VR203-2
VR301-2
VR302-2
VR303-2
VR304-2
VR305-2
VR306-2
VR307-2
VR308-2
VR309-2
Q401DTC114
Q402DTC114
R404RES11
R4051K8
LED401ZD401
2/1W 10V
R40256K
R4036K2
C4014.7/16
SW401R40112K
R40651K
R40733K
R40833K
R41012K
R40912K
Q403DTC114
Q404DTC114
R4251K8
R4261K8
R42751K
R42833K
R42933K
R43112K
R43012K
R4235K1
R4385K1
VR401100KB
R4395K1
R4245K1
C4021/50
IC401A4558L
IC401B4558L
R412100
R413100 C406
47/16
C40522/25
C40447/16
C40333P
R41151K
R4145K1
IC402A4558L
IC402B4558L
R433100
R435100
C415
47/16C414
22/25
C41347/16
C41233P
R43251K
R4345K1
C4111/50
R5015K1
R5025K1
LED501
SW501-1
R5033K
R5045K1
R5055K1
LED502
SW502-1
R5063K
R5075K1
R5085K1
LED503
SW503-1
R5093K
R5105K1
R5115K1
SW501-2
R5125K1
R5135K1
SW502-2
R5145K1
R5155K1
SW503-2
C50610/25
C50310/25
C50147/16
IC501A4558L
C50447/16
C50222P
R5173K3
R518100
R516100
IC501B4558L
C50522P
R5193K3
VR501-1
VR501-2
10KBx2
C507220/16
C515220/16
C50810/25
C51610/25
VR502-1
CUE LEVEL
VR502-2
50KAx2
R520100K
R526100K
C5181/50
C5091/50
C51247/16
C514
47/16
R5241K
R5251K
IC502A
4558L
IC502B4558L
R52747
C51733P
C51333P
R52347
R52233
C51147/16
C51047/25
R52133
R52847
C519102
C520102
R52947
PHONE JACK
R4155K1
R4365K1
C40747/16
C41647/16
VR40250KAx2
BALANCE
20KMNx2VR403
IC403A4558L
MASTER
50KAx2
C4082.2/50
C40947/16
C41047/16
R418100K
R4161K
R4177K5
R42133
R42233
IC403B4558L
VR404
C4172.2/50
R437100K
R4191K
R4207K5
IC404A4558L
C4182.2/50
C42047/16R442
100K
R4401K
R4417K5
R44633
R44733
IC404B4558L
C4212.2/50
R445100K
R4431K
R4447K5
C41947/16
LED605-616
PR6011Kx5
123456789
1011 12
13141516171819202122
R60736K
R6085K6
C6044.7/25
C6031/50
LED617-628
PR6021Kx5
123456789
1011 12
13141516171819202122
R60936K
R6105K6C606
4.7/25
C6051/50
C6072.2/50
R6111M
0.5AFUSE
R601120K
R602120K
R603120K
R604120K
R6056K2
R6066K2
C6024.7/25
C6014.7/25SW601-1
LED601
LED602
LED603
LED604
C7011/50
C7021/50
C7031000/25
C7041000/25
D701-705IN4002x5
C706223
C707223
7815
7915
C705220/16
R7016K2
C708472/500V
SW701110V/220V SW
LED701
IN
OUT
1
2
3
4
5
67
8
12
3
4
5
6
78
12
3
4
5
67
8
1
2
3
4
5
6
7
8
CROSSFADER
BOOTH
CUE SELECT
LB1412 LB1413
0+1+3+5+6
-1
-20-15-10-7-5-3
GINADDIDETRST
VCCIST
OSCVZ
-20
-15
-10
-7
-5
-3
-1
0
+1
+3
+5
+8
0+1+3+5+8
-20-15-10-7-5-3-1
GINADDIDEFRST
VCCIST
OSCVZ
-20
-15
-10
-7
-5
-3
-1
0
+1
+3
+5
+8
220V 50HZ
POWER TRANSFORMERIC701
IC702
1
2
3
4
5
6
7
8
12
3
4
5
67
8
CUE PGM
SW402-1
SW402-2
SW403-1
SW403-2
CH2 PUNCH CH3 PUNCH
SW601-2
SW601-2
SW601-2
SW601-2
SW601-2
AC IN PUT JACK
110V 60HZ
IC601 IC602
R908100K
R909100K
IN CH2BIT
R910100K
R911100K
BITIN CH3
+15V
+15V
+15V
+15V
+15V
+15V +15V
+15V
+15V
+15V
+15V
LAMP12V
+15V
-15V
7805
+5V
+5VD9101N4002
C9121/16
C9132200/16
BPM-250
C1
472/400VCHASIS GROUND
SW01
GROUND
LIFT
PCB BPM250-7BPM250-8
PCB
+5V
Schematic