Vox AC15C1 Service Manual
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Vox AC15C1 Service Manual

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SERVICE MANUAL
VOX
AC15C1/C2/CH
TABLE OF CONTENTS
©2016 VOX AMPLIFICATION LTD.
Hookup:12
Cable Location:16
PARTS LIST: 17
Sound Test Setting:20
Issued: Jan.18, 2016
Ver.2.0
The AC15C2 speakers are corrected
from
530000002139
to
530000002119

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Summary of Contents for Vox AC15C1

  • Page 1 SERVICE MANUAL AC15C1/C2/CH TABLE OF CONTENTS Schematic Diagram:2 Hookup:12 Cable Location:16 PARTS LIST: 17 Sound Test Setting:20 The AC15C2 speakers are corrected from 530000002139 530000002119 Issued: Jan.18, 2016 Ver.2.0 ©2016 VOX AMPLIFICATION LTD.

  • Page 2: Schematic Diagram

    560pF 100V C39 100pF C40 100pF REV SEND REV RETURN VOX R&D ltd. PIN3 connected to chassis J174 Author: D Clarke AC15C1 Preamp and Reverb 64 Alston Drive Bradwell Abbey Checked By: Size: Number: Revision: E Tomiyama ISS3 Milton Keynes...
  • Page 3 TYPE & RATING 10nF 100V C201 Speaker 8 ohm ×2 IF IN DOUBT CONTACT SUPPLIER -27V -27V -27V C200 -27V VOX R&D ltd. AC15C1 Power Stage Author: D Clarke 64 Alston Drive -27V Bradwell Abbey Checked By: E Tomiyama Size: Number: Revision:...
  • Page 4 PCB LAYOUT Main PCB top side bottom side - 5 -...

  • Page 5: Input Pcb

    PCB LAYOUT TUBE PCB & TUBE2 PCB top side bottom side INPUT PCB SWITCH PCB top side bottom side top side bottom side - 6 -...

  • Page 6: Ic Block Diagram

    PCB LAYOUT OUTPUT PCB top side bottom side LED PCB top side bottom side IC BLOCK DIAGRAM MAIN PCB U1, U2, U3, U4, U5: NJM2147D#ZZZB - 7 -...
  • Page 7 CHANGE HISTORY Ferrite Ferrite 560pF 100V D Clarke 09/09/2015 C39 100pF REV SEND PIN3 connected to chassis VOX Amplification ltd. 07/09/15 Add U5B 1 Harrison Close 23/06/15 VR9b Reversed R82 Value updated, R821,C161 & C162 added Knowlhill Title Revision: Sheet...
  • Page 8 10nF 100V C201 CHANGE HISTORY -27V -27V -27V D Clarke 09/09/2015 C200 -27V VOX Amplification ltd. -27V 1 Harrison Close 23/06/15 Update ATT Wiring,C581 & R641 added Knowlhill Title Revision: Sheet Milton Keynes 10/04/15 Parts Added For Attenuator Integration AC15CH Power...
  • Page 9 -15V Drawing Number: Designed By: Checked By: Date: VD-A30021 CHANGE HISTORY D Clarke 04/09/2015 VOX Amplification ltd. 1 Harrison Close Knowlhill Title Revision: Sheet 02/09/15 Update C16 & C17. Add chassis GND Milton Keynes AC Reactive Attenuator Bucks, MK5 8PA...
  • Page 10 PCB LAYOUT MAIN PCB top side bottom side - 6 -...
  • Page 11 ATTENUATOR PCB top side bottom side - 7 -...
  • Page 12 TUBE PCB top side bottom side TUBE2 PCB top side bottom side - 8 -...
  • Page 13 SWITCH PCB top side bottom side OUTPUT PCB top side bottom side INPUT PCB top side bottom side LED PCB top side bottom side - 9 -...
  • Page 14 AC15C1 EXPLODED VIEW...
  • Page 16 AC15C2 EXPLODED VIEW...

  • Page 17: Exploded View

    EXPLODED VIEW AMP ASSY (REFER AC15C1) SEE THE DETAIL "B". DETAIL OF "B". ATTENUATOR ASSY SEE DETAIL "A". DETAIL OF "A". Item Part No. Description Q’ty Item Part No. Description Q’ty 1402-9111+0C2 WOOD CAB 697X260X239 MDF T18 1469-6301+0 PANEL TOP 560X75 PC+EC53 4157-2191+0 RUBBER FOOT D30X25.5 COM NT15H...
  • Page 19 VOX AC15C1 & C2 & CH Parts List = SAFETY CRITICAL COMPONENT. EXP=EXPLODED VIEW Item No Part Number Category Part Name Location Reference C1 C2 CH C1 C2 CH 530000002137 PCB ASSY SET AC15C1 PCB ASSY SET 530000002705 PCB ASSY SET AC15C2...
  • Page 20 530000002068 CLIP-TUBE SECC T=1 WHT CASING 56 VALVE 530000002046 VENT-LARGE PP BLK 94V0 CASING 530000002047 AC INLET WHITE CASING AC INLET WHITE 530000002125 CHASSIS-MAIN AC15C1(EU/UK/AUS) CASING 16 CHASSIS(EU/UK/AUS) 530000002126 CHASSIS-MAIN AC15C1(JP/US) CASING CHASSIS(JP/US) 530000003428 CHASSIS-MAIN AC15C1(JP/US) CASING 16 CHASSIS(JP/US) 530000003429...
  • Page 21 530000002139 T1221 G12M25W 16 OHM for AC15C1 SPEAKER CASING 530000002230 T0727AX48 - VOX AlNiCo Blue for AC15C1X 530000002119 T1220 G12M 25W 8 OHM 530000002142 REAR LABEL FOR T1221A CASING SPEAKER-LABEL 530000002053 EMI CORE GSRC-110-B CASING EMI Core 530000002061 AC INLET POWER PLUG 12.7...
  • Page 22 VOX AC15C1 stage Tube Oscillation Test knobs setting: Knob Posittions MASTER TREMOLO REVERB TOP BOOST NORMAL VOLUME TONE CUT DEPTH SPEED LEVEL BASS TREBLE VOLUME VOLUME O’clock Input: Not connected. Confirm there is no oscillation, with this setting. When there is an oscillation, replace 1st stage tube with 2nd or 3rd stage tubes. If it doesn't solve, try another 12AX7 tubes.

This manual is also suitable for:

Ac15c2Ac15ch

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