Vox vt50 sm Schematic

SERVICE MANUAL

VOX VT50

TABLE OF CONTENTS

ASSEMBLY SKETCH：2-3

SCHEMATIC DIAGRAM: 4-5

PARTS LIST: 6-7

Issued: Mar.19, 2009

Ver.1.0

©2009 VOX AMPLIFICATION LTD.

VTMAINV0.2.8.sch‑1‑ThuSep1113:17:392008

VT50POWERV1.0.2.sch‑1‑FriMar1315:26:142009

VOX VT50 Parts List = SAFETY CRITICAL COMPONENT.

Component must be replaced only by the component specified in this list.

Part Number Category Part Name Location Reference QTY

530000001086 CHIP INDUCTOR HH-1M2012-121 JACK PCB

530000001256 HARNESS
530000001147 HARNESS 3P WIRE BOARD IN 100MM JACK PCB 1
530000001100 PHONE JACK BPJ-BNB-6.5(NUT/BLACK) JACK PCB 1
530000001104 PHONE JACK PJ3039 (3.5PIE) JACK PCB 1
530000001094 OPAMP NJM072 (SMT) MAIN PCB
530000000813 OPAMP NJM4556M MAIN PCB
500324018020 DA CONVERTER AK4384ET-E2 MAIN PCB
500320011255 CPU
500320012334 DSP MB87R1420PMC-G-BND MAIN PCB
530000000183 SRAM CS18LV02563AC-70 MAIN PCB
530000000189 RESET IC KIA7125FV MAIN PCB
500324018021 AD CONVERTER AK5358AET-E2 MAIN PCB
530000000180 EEPROM AK93C45AF MAIN PCB
530000001095 3-INVERTOR TC7WU04F MAIN PCB
530000001096 DIGITAL TR DTC114EUA MAIN PCB
530000001097 REGULATOR 78L05UA MAIN PCB
530000001098 REGULATOR UTC UR3325 MAIN PCB
530000000271 CHIP TRANSISTOR KTA2014 MAIN PCB
530000000275 CHIP TRANSISTOR KTC2875 MAIN PCB
530000000159 DOUBLE DIODE DA204K MAIN PCB
530000000144 CHIP INDUCTOR HH-1M2012-600 MAIN PCB
530000001087 CRYSTAL 8.00MHz MAIN PCB
530000001088 CRYSTAL 22.5792MHz MAIN PCB
530000000288 VOLUME VR RV160-40-15S-B10K-C0 MAIN PCB
530000000289 VOLUME VR RV160-40-15S-B10K-C11 (11CLICK) MAIN PCB
530000000265 TACT SWITCH ATS-1230B (K=9.5MM) MAIN PCB
530000000208 LED LED RED 3M/M DLL-B5131Q MAIN PCB
530000001102 LED 3RG9HW-2-A MAIN PCB
530000000762 CONNECTOR WAFER(GIL-S-3P-S2T2) MAIN PCB
530000001148 HARNESS 8P LEAD WIRE BOARD IN 230MM MAIN PCB 1
530000001149 HARNESS 5P LEAD WIRE BOARD IN 320MM MAIN PCB 1
530000001225 LED SUPPORT SW 4010 - 10MM MAIN PCB 7
530000001226 LED SUPPORT SW 4009 - 9MM MAIN PCB 3
530000001124 TACT KNOB "A" NBR 9PIE MAIN PCB 9
530000001125 TACT KNOB "B" NBR 7PIE MAIN PCB 1

530000001211 POWER IC STK404-100SC-E
530000001091 OP-AMP NJM072D (DIP)
530000001212 REGULATOR MC7915
530000001213 REGULATOR MC7815
530000001103 LED 3O4HD-7
530000000290 VOLUME RV162-20-15SP-B100K
530000000137 BEAD CORE SAT2550L
530000000804 BRIDGE DIODE KBU4K
530000000142 BRIDGE DIODE W04M
530000000150 DIODE 1N4002
530000000151 DIODE 1N4148
530000001203 ZENER DIODE 1N5243B,T
530000001205 ZENER DIODE 1N4733B,T
530000000277 TRANSISTOR KTC3198-GR
530000000268 TRANSISTOR KTA1266GR
530000000273 TRANSISTOR KTC2874
530000001228 TRANSISTOR KTC3200GR,T
530000000838 CONNECTOR MOLEX 5051 2P WAFER
530000001116 CONNECTOR WAFER LWL0640 3P
530000001115 CONNECTOR WAFER LWL0640 5P
530000000764 CONNECTOR WAFER LWL0640 8P
530000000797 STEREO JACK EPJ-BBB-P 8mm
530000000796 PHONE JACK EPJ-BNB-P(8) MONO
530000001101 TUBE SOCKET GZC9-A
530000001237 HEAT SINK 80X30X80 VT50
530000001117 TUBE RETAINER SPRING SUS 1.0 PIE
530000000782 EARTH RING TERMINAL
530000000781 PCB SUPPORT 15MM
530000000882 SUPPORT 30MM
530000001207 DC FAN
530000001143 PCB ASS'Y JACK PCB ASSY VT15/30 (1)

SHIELD WIRE UL2547 3P 115MM JACK PCB 2

M38039G8H-603HP U0

KF0510S5L-01 POW ER PCB 1

MAIN PCB

POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB
POWER PCB 2
POWER PCB
POWER PCB

FB1,FB5,FB6

IC5
IC3
IC16
IC15
IC14
IC22
IC1
IC11
IC2
IC12
DT1,DT2,DT3,DT4,DT17
IC17
IC9
Q5
Q1
WD1,W D2,WD3
L21,L17,L20
X2
X1
VR3, VR6~VR12
VR4, VR5
SW1~SW 10
LED5~LED11
LED2,LED3,LED4
CN2,CN5

IC1 1
IC6,IC20 2
IC8 1
IC19 1
LED2 1
VR13 1
L3,L2,FB1,FB2 4
D6 1
D7 1
D10,D11,D25,D26,D2,D8,D9 7
D5,D1 2
D14 1
D4 1
Q7,Q8,Q9,Q11,Q16,Q21,Q22,Q17 8
Q10,Q14,Q23 3
Q13 1
Q24 1
CN2 1
CN8 1
CN10 1
CN11 1
J4 1
J1 1
V2 1
HSK1064 1

1/2

3

1
1
1
1
1
1
1
1
1
1
5
1
1
1
1
3
3
1
1
8
2

10

7
3
2

1

7
2

Part Number Category Part Name Location Reference QTY

530000001254 MAIN PCB ASSY VT50/100 (1)
530000001252 POWER PCB ASSY VT50 (1)
530000001233 MAIN CHASSIS VT50/100
530000001238 FRONT PANEL

530000001240 REAR PANEL VT50(100V)
530000001241 REAR PANEL VT50(120V)
530000001242 REAR PANEL VT50(230V)

530000001243 REAR PANEL VT50(240V)
530000001126 VOLUME KNOB ABS (CHIKEN HEAD) CLEAM
530000001127 ROUND KNOB ABS - VT200
530000000206 LED BUSHING
530000000839 RUBBER BUSHING PAI12
530000001215 POWERTRANS TRANS 100V = 076-VT50J
530000001216 POWERTRANS TRANS 120V = 076-VT50U
530000001217 POWERTRANS TRANS 220-230V = 076-VT50E
530000001218 POWERTRANS TRANS 240V = 076-VT50EF
530000000170 FUSE T1.6AL 250V
530000000169 FUSE T800mA L 250V
530000000832 POWER SWITCH APS-1101HV0(RL3-111)
530000000199

INLET/FUSE HOLDER

SC-8F-21

530000000282 TUBE 12AX7EH

CHASSIS
CHASSIS
CHASSIS
CHASSIS
CHASSIS
CHASSIS
CHASSIS
CHASSIS
CHASSIS
CHASSIS
CHASSIS
CHASSIS
CHASSIS
CHASSIS
CHASSIS 100V,120V
CHASSIS 230V,240V
CHASSIS
CHASSIS

CHASSIS
530000001259 CHASSIS ASS'Y(100V) (1)
530000001260 CHASSIS ASS'Y(120V) (1)
530000001261 CHASSIS ASS'Y(230V) (1)
530000001262 CHASSIS ASS'Y(240V) (1)

530000001224 SPEAKER TSL300G0505 1

530000001267 CABINET ASS'Y VT50 1

530000000313 HANDLE ASS'Y 1
530000000138 VOX (LARGE) SILVER BRAND MARK 1
530000000160 VALVETRONICS SILVER EMBLEM 1
530000001234 SPEAKER GRILL VT50 1
530000000283 Vent Grill ABS 3
530000000252 RUBBER FOOT SBR SMALL 4
530000000146 CORNER NYLON 6/6 COR0012-A 8
530000000254 SCREW CAP ABS 10
530000000875 RUBBER SPONGE 150X5X2T 2
530000000878 RUBBER SPONGE 70X10X2T 3
500600006508 AC CORD 100V = LY100JPVCTFLY35LY37 (1)
530000000123 AC CORD 120V = KKP30-16A (1)
530000000124 AC CORD 230V = KKP4819R-16A GE (1)
530000000125 AC CORD 230V = KKP650-16A UK (1)
530000000126 AC CORD 240V = KKP550-16A (1)

500540028903 ADAPTER PLUG YL-212 100JP (1)

2/2

1

1
(1)
(1)
(1)
(1)

8

3

1

1
(1)
(1)
(1)
(1)
(1)
(1)

1

1

1