
SCHEMATIC DIAGRAMS
DVD DIGITAL THEATER SYSTEM
TH-M505,TH-M501
CD-ROM No.SML200405
TH-M505
Area suffix
J ----------------------------- U.S.A.
C -------------------------- Canada
TH-M501
Area suffix
J ----------------------------- U.S.A.
(SP-THM505C,
SP-THM303C)
(SP-THM505F,
SP-THM303F)
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
(SP-THM505S,
SP-THM303S)
(XV-THM505, XV-THM501)
(SP-PWM505,
SP-PWM501)
2-1
2-3
2-27 to 36
COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LTD.
No.MB192SCH
2004/5

In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the
parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " "
mark nearby are critical for safety.
(This regulation does not correspond to J and C version.)

Block diagram
<Main body section>
DVD servo board
CN101
DVD traverse
A, B, C, D, E, F, RF+, PD(CD), PD(DVD)
mechanism
FM+/WOUT
VOUT
UOUT
CN201
DVD traverse
COM
DRVER
mechanism
DVD changer mechanism section
TRAY1 to 5
CLOSE SW
TRAY
OPEN SW
SUB TRAY
START SW
TR1_CL to
TR5_CL
M.TR_OP
S.TR_ST
CN3
CN2
Power supply section
LD(CD), LD(DVD)
F+/T+/-
IC201
Q101 to Q104
SUB TRAY
END SW
M
TRAY
POSITION
MOTOR
LPCO1, LPCO2
CDLDCUR, DVDLDCUR
X351
27MHz
SPDRV, TRSDRV, FODRV, TRDRV
/DRVMUTE, /SPMUTE, FG, WHALF
TRVSW
IC1
POSITION
SENSOR
IC1, IC2
TRAY / POSITION
MOTOR DRIVER
POS_UP, POS_DOWN
TR_OP, TR_CL
System control section
CN1
IC301
PANTERA-2
CN453
LSENSOR
CN452
STEDSW
CLSWT1 to 5
STSTSW
MTOPSW
CN451
POSMUP
POSMDN
MTOP, MTCL
EXADT0 to 15, EXADR16 to 20
NEXCE, NEXOE, NEXWE
EXADT0 to 15
NEXCE
MA0 to 10, BA0, BA1
MDQ0 to 31, DQM0 to 3
NCSM,NRAS, NCAS, NWE
INDEX, TRACK, COPY
AIN, AOUT 0 to 2, BCK, LRCLK
DACPDN, DAC0CS, DCLK, DDATA
S2UDT
U2SDT
SCLK
SCS
CPURST
UCS
DISCSET
DISCSTP
IC452
EEPROM
EPDI,EPDO
EPCS,EPSK
DISPRST
IC451
MECHA
CONTROLLOR
DISPBUSY
DISPCS
DISPCK
DISPD2S
DISPS2D
IC509
FLASH ROM
LADD0 to 15
IC512, IC513
LATCH
IC505
DRAM
COUT
YOU T
CrOUT
CbOUT
TX
IC704
RX
ADC
AINL
AINR
IC701
to
IC703
DAC
FAOUTL
FAOUTR
LRMUTE
SWMUTE
CN703 CN701 CN702
CN403 CN401 CN402
RAOUTL
RAOUTR
CAOUT
SWAOUT
AC IN
IC901
SWITCH
REG.
T901
POWER
TRANS.
P901
DIODE
BRIDGE
FL display section
S531 to S540
DISC_KEY
X501
8MHz
IC501
DISPLAY
MICOM
DI501
FL DISPLAY
JS541
G1 to G14
P1 to P35
KEY3, KEY4
VOL1
VOL2
DI-CK, DI-DT
DI-CS, DI-RST
ILLUMI
DISC1 to 5
DIMMER
Q951, Q953
FL SW, -VDISP SW
IC953
B5V REG.
IC951
D5V REG.
Q954,Q955
DVD5V SW
Q958 to Q961
A+/-12V REG.
IC511
REMOCON
Q503
KEY1
Q561 to Q566
D561 to D565
DISC LED
REMOCON
STANDBY
FW502
D5V
DVD 5V
FW511
F1,F2
-VDISP
B5V, D5V
DVD-PON
SYS-PON
M9V
D970
DVD3.3V
A+12V
A-12V
F1,F2,-VDISP
B5V,D5V
FL display
section (P_key)
S521
KEY1
POWER SW
D511
STANDBY
STANDBY
LED
CN406/CN407
FW901
B5V
D5V
CN404/CN405
FW902
DVD-5V
DVD-4V
M9V
+12V
-12V
Q4702
IC472
RESET
CN501
CN450
(LED)
ILLUMI.
LED
FL display section
(Operation key)
S522 to S529
OPERATION SW
SYS-PON, DVD-PON
Q4821
AM-BEAT
CUT
RESET-IN/RST
(Connect)
CN551
CN561
ILLUMI
X4701
8MHz
KEY1
KEY2
AM-BEAT
VOL-1, VOL-2
STAND-BY
REMOCON
KEY1, KEY2
KEY3, KEY4
DI-CK, DI-DT
DI-CS, DI-RST
ILLUMI
FW561
FW521
CN457CN456
IC471
SYSTEM
MICOM
Q4091, Q4092
TU9V REG.
CPURST
INTP
SCLK
S2UDT
U2SDT
CS
VOL-MUTE, VOL-DT, VOL-CK
SETUP, TU, L-R
SW-PON
DIN, DOUT
IC473
Q4811, Q4812
SW-PON
Q4801, Q4802
S-MUTE
S-MUTE
DRIVER
IC475
IC478
TUNER
AMP.
HP-DET
AVC-OUT
AVC-IN
Q4703
AVVLR
TU-DI, TU-DO
TU-CK, TU-CE
TU-PON
TU9V
ADINL
ADINR
C, CV-Y1, Y2-G
CB-B, CR-R
DISPS2D
DISPBUSY
J4891
AV
COMPULINK
CN410
Tuner
Pack
IC531
AMP.
2-1

<Subwoofer section>
1
.
INK
Audio input/output section
SW.P.ON, SETUP
S_MUTE
TU-SW
IC581
IC591
AMP.
Q1131
Q1133
Q1135
S.MUTE
+IN 1, +IN 2
C IN, SW IN
VOL_MUTE
VOL_DT
VOL_CK
IC151
AUDIO
VIDEO-MUTE1
VIDEO-MUTE2
VIDEO-YCMIX
VIDEO-RGB
VIDEO-LPF
VIDEO-SW
OUT-C
OUT-SW
OUT-SL
OUT-SR
CN442 CN441
CN412 CN411
OUT-L, OUT-R
AUX-L, AUX-R
SWPON
SMUTE
TU-L, TU-R
TU-SW
HPOUT-L
HPOUT-R
L-R
Q1251
TUNER
Q1252
TU_L, TU_R
IC531
OUT-L
AMP.
OUT-R
Video input/output section
IC601
HP
AMP.
HP-L
HP-R
CN460
CN701
Jack section
IC158
to
IC160
AMP.
IC153
6CH
VOL.
SW
IC431
VIDEO
DRIVER
CR-R
CB-B
Y2-G
CV-Y1
C
IC411
VIDEO
SW1
HP-L, HP-R, HP-DET
C, SW
SL, SR
L, R
HPOUT_L
HPOUT_R
DIN
DOUT
AUX- L
AUX- R
Cr
Cb
Y
C
Y
C
Y
J1103
SYSTEM
CONN.
IC509
DIGITAL
IN
IC510
DIGITAL
OUT
J1101
AUX IN
J4402
COMPONENT
VIDEO OUT
S-VIDEO OUT
COMPOSITE
VIDEO OUT
J4401
S-VIDEO IN
COMPOSITE
VIDEO IN
J6001
HEADPHONE
OUT
Mini Din
CONN.
FAN
TO SW
SPEAKER
D5001
LED
AC IN
Terminal section
IC101
POWER
AMP.
RY101
RY102
IC102
POWER
RY103
AMP.
Sig.Out
C
FL, FR
J1001
SL, SR
SW
CN121 CN133
CN502
CN202
FAN +
FAN- CLK
Sig.In Sig.Out
IC201
AMP.
IC105
AMP.
TX.RX
FAN+, FAN-, CLK
IC271
AMP.
SL, SW
IC203
AMP.
CN204
SP+
IC204, IC205
SP-
CLOCK
GENERATOR
Amplifier section
+5V
Q3903
+5V REG.
+7V
W3001
LED
Q34704 to Q3707
PROTECTOR
CN311
RY311
R3907
+7V
-7V
R3908
-7V
PROTECT
CN312
Power/Micom
section
IC104
AMP.
C, SR
CN501
SW, C
FL, FR
SL, SR
TX.RX
CLK
IC601
MICOM
Q3714 to Q3718
FAN CONTROL
+12V
Q3901
+12V REG.
-12V
Q3902
-12V REG.
+VH, -VH
+VL, -VL
D3201, D3202
CN231
T101
POWER
TRANS.
IC103
AMP.
FL
FR
FAN+, FAN-
FAN.ON
J1002
FROUT
FLOUT
COUT
SROU
SLOUT
2-2

Standard schematic diagrams
<Main body section>
Power supply section
2-3
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.

System control section
To FW901
OF LVA10468-A2
(SHEET 1)
To CN441
OF LVA10476-A1
(SHEET 5)
To CN442
OF LVA10
(SHEET 5
To FW902
OF LVA10468-A2
(SHEET 1)
To CN703
OF LVA10510-91A
(SHEET 8)
2-5
To CN501
OF LVA10467-A1
(SHEET 4)
To FW521
OF LVA10467-A2
(SHEET 4)
To F
OF L
(SHE

o CN442
F LVA10476-A1
SHEET 5)
To CN702
OF LVA10510-91A
(SHEET 8)
To CN701
OF LVA10510-91A
(SHEET 8)
(SHEET 6)
(SHEET 3)
To Video input / output section
To FW561
OF LVA10467-A5
(SHEET 4)
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
SHEET 2
2-6

Video input / output section
To System control section
(SHEET 2)
2-7

Audio input / output section
2-11

DVD servo section (2/2)
(SHEET 7)
LADD15
LADD14
LADD13
LADD12
LADD11
LADD10
LADD9
LADD8
EXADR19
EXADR20
NEXWE
CPURST
R532
EXADR18
EXADR17
LADD7
LADD6
LADD5
LADD4
LADD3
LADD2
LADD1
NI
R535
47k
(SHEET 7)
IC509
AT49BV322AT70TI
C552
0.1
IC512
EXADR16
C554
0.1
LADD0
IC508
NI
R502
0
IC507
NI
C560
NI
EXADT0
EXADT15
EXADT1
EXADT7
EXADT14
EXADT6
EXADT2
EXADT13
EXADT3
EXADT5
EXADT12
EXADT4
EXADT11
EXADT3
EXADT10
EXADT2
EXADT9
EXADT1
EXADT8
EXADT8
EXADT0
EXADT9
EXADT10
EXADT11
0NI
R501
NEXOE
NEXCE
C559
10k
R530
NEXCE
SN74LVC373APW-X
LADD0
LADD1
LADD2
LADD3
C553
IC513
SN74LVC373APW-X
LADD8
LADD9
LADD10
LADD11
P3.3V
47/4
C558
K350
NQR0354-001X2.2
S3.3V
TP380
C381
C382
470p
0.1
MM1563DF-X
LADD7
EXADT7
EXADT6
LADD6
LADD5
EXADT5
EXADT4
LADD4
NEXCE
LADD15
EXADT15
EXADT14
LADD14
LADD13
EXADT13
EXADT12
LADD12
NEXCE
IC305
C380
1
R380
47k
C551
0.1
MDQ0
MDQ1
MDQ2
MDQ3
MDQ4
MDQ5
MDQ6
MDQ7
DQM0
NWE
NCAS
NRAS
NCSM
BA0
BA1
MA10
MA0
MA1
MA2
DQM2
MDQ16
MDQ17
MDQ18
MDQ19
MDQ20
D4V
MDQ21
MDQ22
C555
0.1
IC505
W986432DH-7
MDQ15
MDQ14
MDQ13
MDQ12
MDQ11
MDQ10
MDQ9
C557
0.1
MDQ8
DQM1
MCK
MA9
MA8
MA7
MA6
MA5
MA4
MA3
DQM3
MDQ31
MDQ30
MDQ29
MDQ28
MDQ27
C556
MDQ26
1
MDQ25
MDQ24MDQ23
INDEX
TRACK
COPY
PWR
NI
R459
S-80827CNNB-W
TP474
TP473
LSENSOR DISCSET
(SHEET 9)(SHEET 9)
CN453
QGA2001F2-03XQGA2001F2-02X
CN452
QGF1016F2-15W
CN451
To CN1 LVA10403-A1
(SHEET 9)
TP472
STEDSW
TP471
TP456
TP457
TP454
TP455
TP452
TP453
TP451
CLSWT3
CLSWT2
CLSWT4
CLSWT1
CLSWT5
STSTSW
MTOPSW
TP458
POSMUP
MTOP
POSMDN
MTCL
TP459
TP462
TP461
TP460
X451
NAX0248-001X
CPURST
IC453
R458
1k
C455
0.01
D1.2V
C454
0.01
R453
10k
NI
R451
C451
0.1
K566
DISPS2D
DISPD2S
0
DISPCK
0
R457
S2UDT
U2SDT
SCLK
TP416
TP415
IC451
MN101C61GNE1
EPCS
0
K562
DISPBUSY
DISPRST
C452
TP414
DISPCS
2.2k
TP412
R452
0.1
TP411
UCS
SCS
CPURST
TP413
TP417
EPSK
DISCSTP
POSMDN
POSMUP
MTCL
MTOP
STEDSW
MTOPSW
CLSWT5
CLSWT4
CLSWT3
CLSWT2
CLSWT1
STSTSW
10k
R456
EPCS
EPSK
EPDI
EPDO
EPDI
EPDO
R455
10k
R454
10k
CN455
NI
2-17

INDEX
TRACK
COPY
AIN
BCK
AOUT0
LRCLK
DACPDN
DAC0CS
DCLK
DDATA
AOUT1
AOUT2
PCMCLK
IC704
CS5342-CZZ-X
C704
C707
R716
220
R710
IC707
NI
C720
R718
10k
NQR0129-002X
NI
2.2
C708
2.2
5.1
R719
IC701
AK4384VT-X
R717
47k
IC702
AK4384VT-X
IC703
AK4384VT-X
C705 C706
2.2 2.2
47k
R720
0.1
C714C716C718
0.10.1
2.2
C712
10/16
C713
C709
47/6.3
C715
0.1
C717
R715
220
R714
220
NI
C711
C710
R722
0
0.1
R704
470
R703
470
C703
1
R701
0.01
C702
0
TP708
R741
R742
0.1
R707
R743
R708
R744
0.1
NI NI
C722
R721
NQR0129-002X
NQR0129-002X
470
NQR0129-002X
470
NQR0129-002X
R728
IC705
C701
MM1615AN-X
470
470
TP723
1
R706
R705
TP722
TP725
NI
K722
K721
TP704
TP701
TP703
AGND
TP702
TP705
TP707
QGF1016F2-10W
CN701
To CN401
OF LVA10468-A1
QGF1016F2-08W
CN702
(SHEET 2)
LRMUTE
SWMUTE
TP710
TP709
TP721
TP724
TP726
TP727
TP728
To CN402
OF LVA10468-A1
(SHEET 2)
NININI
NININI
NI
K723
R726
R725
R723
R724
C721
IC452
BR93L56RFV-W-X
10k
R456
EPCS
EPSK
EPDI
EPDO
C453
R702
NI
2.2
LRCLKM
K551
NQR0129-002X
DAC1OUT
K552
NQR0129-002X
DAC5OUT
K553
NQR0129-002X
DAC3OUT
K554
NQR0129-002X
B3.3V
M9V
K451
0
0.1
MGND DGND
DAC2OUT
S5VD2VM5V
DAC4OUT
RX
TX
DISPS2D
DISPD2S
DISPCK
DISPCS
DISPRST
K556
R562
K555
K565
K564
K563
DISPBUSY
R561
NQR0129-002X
100
NQR0022-005X
1k
NI
NI
NI
DATAM
DEMP
BCKM
INDEX
TRACK
COPY
TP558
TP557
TP552
TP549
TP554
TP550
TP546
TP556
QGF1016F2-28W
CN703
TP551
TP547
TP543
TP540
TP531
TP538
TP532 TP541
TP533
TP534
TP535
TP536
TP537
TP545
To CN403
OF LVA10468-A1
(SHEET 2)
SHEET 8
2-18

DVD changer mechanism section
IC2
SW5
QSW0844-001
TR5_CL
SW6
QSW0931-001
SW4
QSW0844-001
TR4_CL
SW3
QSW0844-001
TR3_CL
SW2
QSW0844-001
TR2_CL
SW1
QSW0844-001
TR1_CL
CN3
QGB1214J1-08S
TR5_CL
TR4_CL
TR3_CL
TR2_CL
TR1_CL TR1_CL
CN2
QGB1214K1-08S
M.TR_OP
TR5_CL
TR4_CL
TR3_CL
TR2_CL
POS_DOWN
POS_UP
C7
0.1/50
M2
QRA0164-001
2-19

IC1
QSW0886-002
QVY0002-B14
SW8
WJM0331-001A
LB1641 LB1641
C5
0.01/50
IC1
D1
MTZJ6.2A-T2
C2
C3
0.01/50
0.1/50
C1
100/10
WJM0330-001A
TR3_CL
TR2_CL
TR4_CL
TR1_CL
TR5_CL
M.TR_OP
POS_UP
TR_OP
POS_DOWN
TR_CL
QGF1036F1-16
CN1
(SHEET 8) (SHEET 8)
SHEET 8
To CN451
OF LVA10510-91A
_
M2
164-001
TR_OP
TR_CL
C6C7
0.1/50/50
M1
QRA0164-001
SW7
QSW0886-002
SHEET 9
2-20

N203
ET 12)
To CN302
(SHEET 11)
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
SHEET 10
2-22

Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
To CN132
(SHEET 10)
SHEET 11
2-24

Front board
JS541
C541
R541
(Operation board)
W5001
C542
R542
K501
C505
B5001
C509
Forward side
S532 S533 S534 S535 S540 S539 S538 S537 S536 S531
C570
R570
Q565
R565
R501
R502
R503
C508
C502
C503
C501
BK502 BK501
C569
R564
R569
Q564
D564 D565
X501
DI501
R563
Q563
D563
C504
C568
R536
R568
R562
C567
R567
D562
Q562
Q561
R504
R566
R561
C566
D561
IC511
C510
(Front
FW521
S522
FW561
(Connect board)
C516
Q503
C511
FW502
(Front board)
S540
IC511
C510
S526
S539 S538
R539
R538
R537
C512
S527
Q501
Q551
R553
S537
Q552
D568
CN561
S528
S529
D551
CN551
(Illumination board)
S523
Reverse side
R534
S536 S531
Q566
IC501
D567
D566
Q502
S534 S535
DI501
C507
C506
R533
S533
S532
S521
D511
FW511
(Power key boa
C505
W5001
K502
B5002
JS541
R531
R532
BK502 BK501
C509
2-29
D511
S521
R511
FW511
(Power key board)
S523
R522
S529
D551
C551
R552
(Illumination board)
R528
R551
CN551
S528
R527
CN561
S527
R526
S526
(Operation
R521
S522
(Connect

Audio board
CN501
FW502
(Front board)
ey board)
R2599
C2603
C2585
C2604
C2597
EP101
TPC2
R2562
C2599
C2592
R2594
R2590
C2590
IC591
R2582
R2584
C2584
R2586
IC581
C2582
R2581
C2605
R2561
C2594
R2592
R2588
C2583
R2583
R2585
C2600
R2596
R2587
TPSW1
R2551
C2589
R2560
C2532
R2534
TPC1
TPSL1
C2581
C2539
C2540
R2553
IC531
TPSR1
C2561
R2552
C1254
CN442
Q1251
C1230
R2554
C2562
R1253
R1254
R2533
C2531
R2538
Q1252
TPR2
C2541
C2542
C2533
IC152
C1253
TPL1 TPR1
C1002
R2539
R2541
R2537
C2536
IC151
TPL2
C2578
C2577
C1001
TPSR2
C2535
C2534
R2542
R2540
CN441
TPMIC1
C1251
C2526 R2525
R2526
C2575
C2576
R2567 R2568
TPSL2
R2563
C2564
C2563
R2564
R2565
R2566
C2525
C2527
C2528
R1251
C1252
R2531
R1252
R2532
JS541
ation board)
R521
FW521
FW561
R1197
R1131
R1133
R1137
C1227
R1167
TPL4
K1101
C1183
TPL3
C1203
R1169
R1201
C1205
R1161
R1110
R1136 R1134
C1201
Q1131
R1135
IC158
C1176
R1170
R1202
R1168
J1103
C1222
TPR4
TPSL4
TPR3
C1202
C1221
R1162
TPSR4
J1101
R1141
C1204
C1209
C1206
TPSW4
R1132
C1228
R1139
C1177
TPC4
R1102
TPSW2
R1138
C1207
C1179
IC159
C1211
C2504
TPSL3
R1143
R1145
R1163
C1125
R1104
C1102
R1108
C1141
R1144
R1172
Q1133
R1174
C1101
R1107
C1143
C1224
R1109
C1208
R1164
R1103
C1212
C2503
IC153
R1140
C1223
C1178
TPSW3
C1213
R1142
C1210
R1173
C1217
R1101
C1003
R1147
R1151
R1146
R1171
C1181
C1145
TPSR3
R1165
C1104
C1144
R1175
C1142
R1176
C1226
R1149
R1152
IC160
Q1137
R1166
IC510
R1124
R1106
R1105
R1123
TPC3
C1218
R1122
C1214
C1215
C1180
C1103
R1154
R1153
R1158
R1155
C1122
C1123 C1124
R1121
Q1135
C1225
C1121
R1120
R1148
R1150 C1216
R1157
C1120
R1156
C1105
IC509
nect board)
(Audio & Digital input board)
2-30

Loading board
(Motor board)
CN2
(Tray switch board)
CN3
SW1
M2
C1
CN1
C7
C5
IC2
M1
IC1
C3
C6
D1
C2
SW7
(Switch board) (Sensor board)
R1
TP3
TP4
SW8
SW6
SW4 SW3 SW2
SW5
TP1
TP2
TP5
2-32

VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MB192SCH)
Printed in Japan
WPC