GUITAR AMPLIFIERAC10C1

SERVICE MANUAL

TABLE OF CONTENTSAssembly (Exploded) view: 2

Schematic Diagram: 3Test Mode: 10Parts List: 11

Issued: Jun. 2015Ver.1.0

©2015 VOX AMPLIFICATION LTD

ISSUE

GPE(SZ)ENG. DEPT.

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

D D

C C

B B

A A

1

VOX Amplification ltd.1 Harrison CloseKnowlhillMilton KeynesBucks, MK5 8PA 2AC10C1 Main Schematics

VD-A30013

PR2

09/06/2015

Title

Drawing Number: Date:

Revision: Sheetof

Designed By: Checked By:

P Scarffe D. Clarke

Issue ChangeDate Signed

CHANGE HISTORY

BPJ-BBB-MONO

J4VR1A500K

R77

68K

R761M

C72 22pF 50V

R60

10K

R51FB

GND

R631.5K

R95

C67470pF 500V

C69

GAIN

CHASSIS_IN

C71

100nF 50V

GD

S

Q4LND150N3-G

R622.2K

R612.2M

C68120pF 500V

R241K5

A1MTreble

VR3

Bass

VR2A1M

R96100K

R9810K

C82

56pF 500V

C3747pF 500V

R58100K 1/4W

R79100K

R17100K

R781M

R7047K

R641K2

R80

1M

2 7

V2

12AX7

C75

22nF 400V

C50100nF 400V

C78100nF 400V

C22 100nF 400V

TO REVERB

Master VolumeVR5A500K

B+3

C59100nF 50V

R50 C5522nF 400V

R6810K

R69220K

i1mm Clear

R85470K

R8447K

GND

GD

S

Q1LND150N3-G

R10110K

R10010K

GNDGND

C8410uF 350V

C8510uF 350VC86

C201

i1mm Clear

i1mm Clear

i 1mm Clear

i1mm Clear

i1mm Cleari 1mm Clear

R3110K

C8710uF 350V

GND

2 7

V3Tube 12AX7

i 1mm Clear

GND

+5V

R131K

R1610K

R7

22K

R1422K

R6

22K

C3100nF 50V

R9

470K

BIAS

BIAS

D21N4746A

D6

1N4746A D91N4746A

D3

12

P7

Header 2

12

P14

Header 2

13

2 NJM2115U1A

+5V

GND

123

P23

Header 3 - Wide

GND

TO POWER AMP P24

C2

10uF 16V

L32

FB

L33

FB

L34

FB

L36

FB

75

6 NJM2115U1BR37

220KC1

10uF 16V

GND HDC

GND HDC

+12.6V

+12.6V

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

D D

C C

B B

A A

2

VOX Amplification ltd.1 Harrison CloseKnowlhillMilton KeynesBucks, MK5 8PA 2AC10C1 Main Schematics

VD-A30013

PR2

09/06/2015

Title

Drawing Number: Date:

Revision: Sheetof

Designed By: Checked By:

P Scarffe *

Issue ChangeDate Signed

CHANGE HISTORY

B+1 B+2D5

1N4007D4

1N4007

F2

T6.3AL

H1

H2

F1T200mAL

C9

1nF 1KV

C10

1nF 1KV

R13-5A2-01-HWH, POWER TOGGLE SWITCHF10

100V-120V: T1.25AL/250V, 220-240V:T630mAL/250V

POWER SWITCH

Chassis

!

!

!!

SAFETY CRITICAL COMPONENTREPLACE ONLY WITH THE SAME

TYPE & RATINGIF IN DOUBT CONTACT SUPPLIER

!!

!

HTR GND

i1mm Clear

i2mm Clear

D8

1N4007

C16

1nF 1KV

D7

1N4007C15

1nF 1KV

P8

1/4" Spade

P161/4" Spade

P9

B+1P21/4" Spade

P1

1/4" Spade

!

Chassis

R99

1K 5W

R3

Ferrite

BPJ-BBB-MONO

J1

12.6V~

!

12

P12

Header 2TO ErP Control

FITTED FOR ErP VERSION ONLY

132

R10

22K 1W

B+3

GND

AC2

V+1

AC 4

V- 3

1A BRIDGE DB101

D1 H2H1

P11 P10

LS1

16ohm Speaker

!

12

0.156" 3 3

P3

12

0.156"

P5

R12

3K3

R11

3K3

120R 5W

R8GNDb

R1

470R 1/2W

R94

470R 1/2W

29

V1

Tube EL84

i1MM clear

i1MM clear

220uF 50V

C21

Texti

1mm Clear

C43470uF 16VC30

0.1uFC34100uF 6.3V

+5V

C3810uF

HDC+

GND1

i1MM clear

i1MM clear

R2110K

+5V

R2210K C7

100uF 6.3V

C60.1uF

BIASR20

LINK

R533R 3W

C8 C13

123

P15

Header 3

+5VdBIAS123

P24

Header 3 - Wide

GNDb

H1b H2b B+2bH1H2B+2

H1b H2b

B+2b

FROM PREAMP OUT P23

FROM MAIN PCB P25TO POWER AMP P26

123

P25

Header 3 - Wide

123

P26

Header 3 - Wide

GND1

NOT FITTED

NT1

GND1 GND1

(Chily 6016 for 230V ERP version)

29

V4Tube EL84

R293K3 1/4W

R15220K

R28220K

C190.1uF

+5V

GND

D11

NOT FITTED

L38

LED1RED LED1

2

P4

Header 2

+5V +5VdR2

1R

C264.7uF 6.3V

C240.1uF

GND1

HTR GND

100uF 16VC11

R303K3 1/4W

C14

R4

6.8R 2W

+12.6V

GND HDC

NT2

GND1

HDC+

TWIST OPTX WIRES

IN1 OUT 3

GND

U3 LM2940

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

D D

C C

B B

A A

1

VOX Amplification ltd.1 Harrison CloseKnowlhillMilton KeynesBucks, MK5 8PA1

AC10C1 ErPVD-A30012

30/01/2015 09:35:54V:\Altium\AC10\AC10 ErP.SchDoc

Title

Size: Number:

Date:File:

Revision:

Sheet ofTime:A3

Author:

Checked By:

P. Scarffe

Issue Reason for change Date Revised by

POWER TOGGLE (ON)-OFF-(ON)

P3

1/4" Spade

+5V

P6

1/4" Spade

Q32N3904

PWR_CONTROL

P5

1/4" Spade

P4

1/4" Spade

P2

1/4" Spade

P11/4" Spade

K1

GND

PWR_CONTROL

21

3

SW2

See-Plus Industrial SLIDE SWITCH, 1P2T, SS-12D11 (CG)

GND

R10

1KErP

Disabled

Enabled

132

CHASSIS EARTH

LEN

TO PRIMARY OF MAIN TX

i3mm clear

i3mm clear

R7LINKGND

R111K

+5V12

P8

Header 2

TO REV PCB P21

R61K

R2

10K

P101/4" Spade

D15

Diode 1N4148

D1

D3Diode 1N4007

PRIGND

PRIGND

1

42

3S1

K817P

i3mm clear

R2147K 5W

i1mm clear

SW1

APEM 637H-1

SAFETY CRITICAL COMPONENTREPLACE ONLY WITH THE SAME

TYPE & RATINGIF IN DOUBT CONTACT SUPPLIER

!!

!

! !

ON

OFF

123

P7

Header 3 - Wide

R1

LINK

Q12N3904

D4

Diode 1N4148

R4

10K

GND

C3

LINKR14

1uF 6.3VC13

+5V

GND FROM MAIN PCB P12

PR1

BLACK WIRE

WHITE WIRE

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

D D

C C

B B

A A

1

VOX Amplification ltd.1 Harrison CloseKnowlhillMilton KeynesBucks, MK5 8PA1

AC10C1VD-A20011 PR2

29/01/2015 17:17:22V:\Altium\AC10\AC10_Reverb_2.SchDoc

Title

Size: Number:

Date:File:

Revision:

Sheet ofTime:A2

Author:

Checked By:

P.Scarffe

D. Clarke

Issue Reason for change Date Revised by

DGND

VCC 1P50/AN22 2P51/AN23 3P52/AN24 4P39 5P3A 6P3B 7P3C 8P3D 9P3E 10P3F 11VSS 12P1025

P11/AN0126P12/AN0227AVSS28

P14/AN0429P15/AN0530

AVCC31

AVRH32AVRL33

P23/AN1234P22/AN1335P21/AN1436

U4MB9BF124KPMC

R46NF

ERP_SW

AGND

+5Vb

SWDIO

PWR_CONTROL

SWCLK

DAC_ADJ

DGND

CPU_RESETSWCLK

SWDIO

R57

100K

+5Vb

R5610K

+5Vb

R4710K

+5Vb

R45NF

CPU DEBUG

R4447K

+5Vb

12MHzX1

C28

22pF

C23

22pF

DGND

R43100K

DGNGG D

VCC 1P50/A// NAA 22 2P51/A// NAA 23 3P52/A// NAA 24 4P39 5P3A 6P3B 7P3C 8P3D 9P3E 10P3F 11VSS 12P1025

P11/A// NAA 0126P12/A// NAA 0227AVSS28

P14/A// NAA 0429P15/A// NAA 0530

AVCC31

AVRH32AVRL33

P23/A// NAA 1234P22/A// NAA 1335P21/A// NAA 1436

U4MB9BF124KPMCKK

R4R46NFNF

ERP_SW

AGNGG D

+5VbVV

SWDIO

PWR_R_R_CONTROL

SWCLK

DAC_AC_C_ DJ

DGNGG D

CPU__RESETSWCLK

SWDIO

R57

100K

+5VbVV

R5R5610K

+5VbVV

R4R4710K

+5VbVV

R4R45NFNF

CPU DEBUG

R4R44447K

+5VbVV

12MHzXX1

C28

22pF

C23

22pF

DGNGG D

R4R43100K

i 0.2mm Digital clearence

123

P21

Header 3

ERP_SWPWR_CONTROL

DGND

SG2 SG3

DGNDAGND

C460.1uF

AGNDDGND

C470.1uF

AGNDDGND

1234

P19

Header 4DGND

TXDRXD

+5Vb

MIDI

R53

NF

C29

4.7uF

DGND

R309K1 1%

R2912K 1%

R3375R 1%

R3224K 1%

C19

1uF

R2810K

C20

220pF

BIASb

R3622K

R39100K

R38

6K2

BIASb

AGND

+5Vb

12

P18

Header 2

12

P17

Header 2

AGND

AGND

123

P22

Header 3

+5VbBIASb

FROM MAIN PCB

AGND

AGND

+5Vb

+5Vb

DAC_ADJ

12345

P1

Header 5

AGND

+5Vb

AGND

C20.1uF

C30.1uF

DGNDAGND DGNDAGND

AGND

R222K

C81000pF

AGND

C6

1000pF

R122K

BIASb

+5Vb

AGND

C7

100pF

R3100K

R5100K

R4100K

C9100pF

BIASb

AGND

+5Vb

AGND

2

311

U1ATL064ACD

5

672

U1BTL064ACD

810

9

3

U1CTL064ACD14

12

134

U1DTL064ACD

+C4

10uF 16V

+

C5

10uF 16V

Text

L7

FB

L6

FB

PWR_LED

12

P2

Header 2

PWR_LEDR8

1K

+5Vb

R9

1R

NT1

LINK

AGND DGND

ISS1 04.12.2014

SG4

AGND

Removed C39 and C40. Shorted to GNDISS1

VOX AC10C1 Parts List : SAFETY CRITICAL COMPONENT.EXP=EXPLODED VIEW Item No

Code Part Name Location EXP Reference QTY530000003368 PCB ASSY JACK COM AC10C1 JACK 1530000002888 JACK SOCKET(MONO) JACK J1 1530000002069 SPECIAL WASHER 18.9X18X JACK J1 INPUT 1

530000003369 PCB ASSY LED COM AC10C1 LED 1530000003370 LED HOLDER D9.25X13.4 ME LED LED HOLD 1530000003371 LED CY 5X8.6X16 RD LED LED1 1

530000003372 PCB ASSY MAIN COM AC10C1 MAIN 1

530000003373 DIODE DB101-C 50V 1A MAIN D1 1530000003374 DZ 1W 18V 5% 1N5931B AT MAIN D2, D3, D6, D9 4530000002089 DIODE IN4007-F AT MAIN D4, D5, D7, D8 4

530000003375 RCF 2W 6.8R 5% ATW MAIN R4 1530000003376 RMF 3W 33R 5% AT MAIN R5 1530000002633 RWR 5W 1K 5% SQZ RL MAIN R99 1

530000002438 FUSE 200MA 250V EU/UK/AUS/SKOR MAIN F1 1530000002094 FUSE T6.3A 250V 5X20 UL MAIN F2 1

530000003377 VR ROTARY A500KX1 20% V MAIN VR1 1530000002631 VR ROTARY A1MX1 30% V MAIN VR2, VR3 2530000001882 VR Rotary B20KX1 20% V MAIN VR4 1530000002083 VR ROTARY A500KX1 20% V MAIN VR5 1

530000002448 SPECIAL WASHER 23.8X18X MAIN J2 INPUT 1530000003378 PHONE JACK F 4P 6.4X16.5 MAIN J4 1530000003379 MOSFET N-CH 500V LND150N MAIN Q1, Q4 2530000003380 IC ASIC NJM2115M DMP8 MAIN U1 1530000003381 IC REGULATOR LM2940CS-5. MAIN U3 1530000003382 SOCKET 9PIN 500V WHITE MAIN V2, V3 2

530000003383 PCB ASSY TUBE COM AC10C1 TUBE 1

530000003179 RWR 5W 120R 5% SQZ RL TUBE R8 1530000002060 SOCKET 9PIN 500V D=22 TUBE V1, V4 2

530000003384 PCB ASSY ERP EU UK AC10C EU UK 1

530000002089 DIODE IN4007-F AT EU UK D1, D3 2530000002636 DIODE 1N4148T AT EU UK D4, D15 2

530000003385 TR 2N3904TA RLT EU UK Q1, Q3 2

530000003178 RWR 5W 47K 5% SQZ RL EU UK R21 1

530000003386 RELAY 5V 80MA SPST BRT3- EU UK K1 1530000003180 PHOTOCOUPLER EL817 EU UK S1 1530000003387 SW SLIDE SPDT 12V 0.1A EU UK SW2 1

530000003388 PCB ASSY REVERB COM AC10 (DATA) REVERB

530000003389 CRYSTAL 12.000MHZ HC-49U REVERB X1 1

530000003390 IC ASIC TL064ACD SO16 REVERB U1 1

530000001874 Logo 45X11 1 1530000002046 VENT-LARGE PP BLK 94V0 2 1530000003392 SCREW MACH O-CS 4X20 CR LCS NI 3 4530000002076 HANDLE-TOP 187X25.8X15.8 4 1530000002445 T5706 VOX 10 16OHM[OIC] 6 1530000003394 WOOD CAB 520X210X365 MDF+PB 14 1530000002067 CLIP TUBE 34X27X68 METAL 15 2530000002081 VACUUM TUBE COMPACTRON EL84 17 2

Code Part Name Location EXP Reference QTY

530000003395 TRANS AUDIO 173.2/12.6V 10W0.06A 20 1530000003396 SCREW M4X12 PH BK 30 6

530000003397 TRANS PWR 240/250-12.6V/AUS 31530000003398 TRANS PWR 230/250-12.6V/EU/UK/ARG 31530000003399 TRANS PWR 120/250-12.6V/US/120V 31530000003400 TRANS PWR 100/250-12.6V/JP 31

530000001921 FUSE T630MA 250V EU/UK/AUS 32 1530000001920 FUSE T1.25A 250V JP/US 32 1

530000002611 AC INLET M 3P 250V 10A(NT50H) 33 1530000003401 LENS PC SHEET 80X40 PC BK/EU/UK /ARG 39 1530000002080 VALVE COMPACTRON 12AX7B 41 2530000003184 SWITCH POWER TOGGLE SPDT 43 (* for 230V only)530000002641 SWITCH POWER SPST 250V 43530000003370 LED HOLDER D9.25X13.4 ME 44 1530000002923 KNOB-CHICKENHEAD AC4C1 45 5

1

1