Page 1
Block diagrams
DVD Servo control and DSP section
(SHEET 5,6)
TX
IC503
TC74VHC00FT
IEC958
159
IC502
SYSCLK
3
180, 182
184~189
STD0~7
85
178
59
27
/WR
60
/RD
IC505
16M SDRAM
IC504
KM416S1120DT-G8 KM416S1120DT-G8
16M SDRAM
27MHz
NAX0393-001X
TO CN701
SHEET 4
VD0~7
DA_DATA1
163
142, 143
145, 148
150, 152
13 1771615
2~4
IC501
ZIVA3-PE0
AV DECODER
207
208
/WR
/RD
WAITODC
31, 32
154, 155
VCLK
6
8~11
34~36
29 39~46
202
~204
IC311
IC554
VIDEO
MC44724AVFU
ENCODER
WAITDEC
IC312
TC7SH08FU
TC7SH32FU
YOUT
COUT
CN503CN502
CVBS
PbOUT
ZIVA WAIT
TO CN601
SHEET 3
PrOUT
IC321
IC322
TC7WH74FU
XV-521BK/523GD/525BK/421BK
V+5V
TC74VHC00FT
U2SDT S2UDT
+2.5V REG
SCLKO REQ
BUSY
IC555
CPURST
CPUD0~7 CPUA0~2
ODC
IC301
MN103S13BDA
(Optical disc controller)
FEPEN CPSCK SDOUT SLEEP
BDO OFTR TGBAL
TBAL TE RFENV
FBAL FE TG AS
ARF+ ARF-
TESTSG JLINE
5~7, 16, 18
20, 22, 24
30, 31
47~50
IC101
AN8702FH
39~41, 46
53, 54
57~60
62, 63
11~14
EFP
(Front end processor)
TD TA F1 F2
F1CD F2CD
T1CD T2CD
RF+ RF-
37, 38
40~43
45~55
88
112~115
4CH Driver
CN101
57
62, 63
68~70
IC271
M56788FP
72~74
PLLOK
63
DAT0~3
ADSC
1~3, 8, 9, 26, 37
42~44, 47, 49
99, 100
5, 6, 51
SPDRV, TDOFS
FODRV, TRDRV
36, 37
15, 31, 32
34, 35, 42
TRSDRV
3, 17, 30
9, 10, 14
77~80
85~89
IC201
MN67706ZY
(Digital servo controller)
84
52, 98
SM+ SM-
FM+ FM-
ADSCEN
CIRCEN
CPSCK
EPDO
EPDI
EPSK
T+ T-
F+ F-
PHOTO
SDOUT
ADSCIRQ
EPCS
3~6
IC403
EPROM
WAIT
1
53, 59, 70
72, 76
62~65
11
AK93C65AF
57, 58
67~69
IC401
Unit CPU
MN102L25GDZ1
82
23, 24
M9V
D5V
CN501
55, 56
70, 72
7813~16
26~33
35~424493~100
OSCI/O
Z3V
S5V
X401
D3V
DECIRQ
2~11
15, 17, 19
CPUA1~20
CPUD0~7
D2.7V
REG
D2.7V
CPUD0~7 CPUA0~17
21, 24, 26
28, 30
34~43
16M ROM
Q1
LSIRST
IC402
MSM531622F
LVB10126-A1
FROM CN10
OF FXL-V6-1
SHEET 4
FROM CN706
2-1
Page 2
XV-521BK/523GD/525BK/421BK
DC Regurator section (SHEET 2)
TO CN832
SHEET 1
FL ON/OFF
F1F2-VDISP
CN971
Q951,Q952
B5V
TO CN704
SHEET 4
D5V
CN961
M9V
D3.3V
Q964,Q965
+3.3V REG.
TO CN705
SHEET 4
B5V
P.ON
CN951
+12V
P.MUTE
-12V
D951
AC-DC
C960
D950
Q953
-30V REG.
AC-DC
D901
AC-DC
IC953
+5V REG.
NJM78M05FA
L951
D952
C963,C964
IC951
+5V REG.
PQ05RD21
L952
D953
AC-DC
C965,C966
T901
QQS0028-001
TRANSFORMER
D904
C914
AC-DC
D954
AC-DC
AC-DC
D908
L955
C979,C997
D910
Q966
D972,D973
C995,C996
MUTE DETECTION
Q991
D956
AC-DC
MODE SW.
L957
C982,C984
PC902
PC123F
D957
AC-DC
L959
C987,C989
2-2
LVA10112-A1
S1WB/A/60-4101
L901
LINE FILTER
QQR1105-001
AC IN
IC901
REGURATOR
STR-G6651
SWITCHING
FEED BACK
PC901
PC123F
Page 3
System control and Audio out section (SHEET 4)
TO CN801
SHEET 1
TO FML-121-1
TO CN501
SHEET 6
FROM CN961
SHEET 2
FROM CN502
SHEET 5
FLRST,STANDBY IND
FLCK,FLDATAI/O
FLCS,REMO
POWER SW
CN703CN702CN701
AOUT
BOUT
MOTOR
DRIVER
IC712
BA5208A
CLOSE, OPEN
M9V
D5V
Z3V
D3.3V
CN706
D3.3V
D5V
M9V
CN704
D3.3V
DA_DATA1
TX
MT0
MT1
2, 37, 8
34
35
40
CONTROLLER
41
18 - 26
37, 38
U2SDT
S2UDT
SCLK
REQ
BUSY
CPURST
CS3
RSTE
SCK
RXD
/NTSC
6, 27
45 - 49
SYSTEM
IC701
MN101C12GHA
99
80
39
AVCI, AVCO
77
78
87 - 91
DAC
CONTROL
RESET
33
12, 13
50 - 53
64
1, 5, 9
25 - 27
2
FS2
RESET
IC702
IC-PST9140-T
OSC
X701
10MHz
PDO
28
DAC
IC703
MN35503
F.RESPONCE SW.
Q711,Q741,Q751
23
10, 13
16, 19
EEPROM
IC791
AK93C45AF
EEDI/O
EECS
EECK
PLL BLOCK
D731-D733
L731
XIN
LPF
IC741,IC751
NJM4580D
1
D3.3V
2
COMPULINK
IC792
TC74HC08AP
XV-521BK/523GD/525BK/421BK
LVA10111-A1
AV
Q709
3
P.ON
MUTE
Q743,Q753
Q744, Q754
D791,D792
TRANS
T601
+12V
-12V
P.MUTE
MUTE
Q791
J702
B5V
J691
LOUT
ROUT
J601
R
L
OPTICAL
DIGITAL OUT
J703
AV
COMPULINK
FROM CN951
SHEET 2
POWER
SUPPLY
CN705
Ver. E/EN/EE/EV/B
only
AV O UT
ANALOG
AUDIO OUT
COAXIAL
DIGITAL OUT
OPTICAL
DIGITAL OUT
FL Driver section (SHEET 1)
FROM CN971
SHEET 2
OPERATION
SWITCH
S821
OPERATION
SWITCH
S831~S835
-VDISP
F1
F2
CN832
B5V
AIN2
11
AIN0
16, 17
6
AIN5
OPERATION
SWITCH
S811
9
FL DRIVER
IC802
M35500BGP
23 - 43
S1~S14
1G~7G
FL DISPLAY
RESET,CS,SIN,SOUT,SCLK
5
12 - 15
10
DI801
AIN1
REMO
1
REMOTE
CONTROL
RECEIVER
IC801
GP1U271X
LVA10112-A2
FW802
TO CN703
CN801
SHEET 4
LVA10112-A3
STANDBY IND
POWER SW
FW841
POWER
SWITCH
S801
LVA10112-A4
OPERATION
S842, S843
STANDBY
INDICATOR
D801
SHUTTLE
KNOB
S841
or
SWITCH
XV-421 only
2-3
Page 4
XV-521BK/523GD/525BK/421BK
Video out section (SHEET 3)
TO CN503
SHEET 6
CN601
2
9
7
3
5
1
Cr
Cb
Y
C
CVBS
V+5V
4MHz LPF
L601, L602
4MHz LPF
L611, L612
6MHz LPF
L621, L622
3.58MHz BPF
L631, L632
3.58MHz BPF
L641, L642
Q621
Q631
Q641
LVA10111-A1
Q601
Q611
S691
COMPOSITE
-Y/C SW
456
123
Y
C
J601
1
Cr
4
Cb
7
Y
Ver. E/EN/EE/EV/B only
J691
C/GND
15
Y/COMPOSITE
19
J601
12
S-VIDEO
13
OUT
J601
8
COMPOSITE
VIDEO OUT
COMPONENT
VIDEO OUT
2-4
Page 5
Standard schematic diagrams
System control circuit
7
6
5
XV-521BK/523GD/525BK/421BK
4
3
2
1
Digital audio signal path
Audio signal path
BCDEFGH I JA
2-5
Page 6
Video signal path
Audio signal path
K603
D629
D639
Q692
R660
R611
R603
R613
R601
R661
Q693
R615
R605
Q611
Q601
R614
R604
R616
R606
C614
C619
C609
R619
R609
D609
D619
J601
K602
K601
C604
L602
J691
S691
R686
C686
C685
R685
C694
R694
C695
R695
Q691
R696
R697
R698
C659 R659
C639
L601
J601
R649C649
D649
R639
R629C629
C603
C601
R602
L612
L611
C613
C611
R612
R641
R643
R645
Q641
R644
R646
C644
L642
L641
C643
C641
R642
R631
R633
R635
Q631
R634
R636
C634
L632
L631
C633
C631
R632
R621
R623
R625
Q621
R624
R626
C624
L622
L621
C623
C621
R622
J601
R687
K604
T601
C696
C697
T601
T601
L605
L615
L625
L635
L645
L651
L652
L655
L662
L665
L661
C652
C653
C656
C657
C654 C655
C658 C660
C661
C662
C664
C665
C666
C667
C650 C651
C645 C646
K614
K613
K612
K610
K608
K609
K607
K606
K605
K611 c668
C663
D600
D610
D620
D630
D640
J601
J601
CN601
C699
R688
C698
QQR0601-001Z
1SS133-T2
1SS133-T2
DTC114YS-T
10K
27
27
27
27
2.2K
DTA114ESA-T
220
220
2SA933AS/RS/-T
2SA933AS/RS/-T
390
390
1K
1K
15p
470/6.3
470/6.37575
1SS133-T2
1SS133-T2
QNN0333-001
QQR0601-001Z
QQR0601-001Z
15p
5.6
QNZ0099-001
QSW0454-001
150
470P
470P
150
470/6.3
75
0.1/25
75
DTC114YS-T
1.5K
1.2K
5.6K
470/6.3 75
0.1/25
12
75470/6.3
1SS133-T2
75
75470/6.3
68p
180p
390
5.6
12
68p
180p390
750
750
220
2SA933AS/RS/-T
750
1K
10p
5.6
12
47p
120p
750
68
68
220
2SA933AS/RS/-T
390
1K
10p
5.6
12
47p
120p
390
750
750
220
2SA933AS/RS/-T
750
1K
10p
5.6
12
47p
120p
750
75
QQR0601-001Z
QQR0880-001
22/16
1.5
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
150P
150P
150P
150P
150P 150P
150P 150P
150P
150P
150P
150P
150P
150P
150P 150P
150P
150P
QQR0601-001Z
QQR0601-001Z
QQR0601-001Z
QQR0601-001Z
QQR0601-001Z
QQR0601-001Z
QQR0601-001Z
QQR0601-001Z
QQR0601-001Z
QQR0601-001Z
150P
150P
1SS133-T2
1SS133-T2
1SS133-T2
1SS133-T2
1SS133-T2
QNN0333-001
QNN0333-001
QGB2027M1-10S
33P
10
33P
DOUT
AGND
AUDIOL
Lch
Rch
VS1
AUDIOR
AGND
V.GND
V+12V
VS3
V+5V
Analog circuit
XV-521BK/523GD/525BK/421BK
7
6
5
4
3
2
1
BCDEFGH I JA
2-6
Page 7
DVD servo circuit
XV-521BK/523GD/525BK/421BK
STVALID
TP156 TP154
NI
NI
R330
R329
TP157
TP155
0.1/16
C321
0.1/16
C306
CPUA14
CPUA13
CPUA12
CPUA11
CPUA10
CPUD5
CPUD6
CPUD7
CPUA4
CPUA5
CPUA6
STCLK
47k
NI
NI
NI
R322
R323
R325
R326
NI
NI
R327
47k
47k
R324
0.1/16
R328
CPUA9
CPUA8
CPUA7
CPUD2
CPUD3
CPUD4
CPUA7
CPUA8
CPUA9
TP153
TP152
0.1/16
C319
C320
IC301
MN103S13BDA
0.1/16
C307
CPUA6
CPUA5
CPUA4
CPUA3
CPUA2
CPUA1
CPUA0
/WR
/RD
CPUD0
CPUD1
CPUA10
CPUA11
C410
R428
R427
R426
R425
R424
R423
R422
R421
IC401
MN102L25GDZ1
0.1/16
C405
CPUA12
CPUA13
CPUA14
CPUA15
CPUA16
CPUA17
CPUA18
CPUA19
Digital data signal path
D2.7V
DAT0
DAT1
DAT2
DAT3
CHCK40
NCLOCK
NI
NI
R321
R320
C318
0.1/16
TP151
TP150
0.1/16
C309
CPUD3
CPUD4
CPUD5
CPUD6
CPUD7
ODCIRQ
ODCIRQ2
NI
R419
NI
R417
4.7k
R418
4.7k
C409
0.1/16
0
R410
CPUA20
HAGUP
HMFON
CD/DVD
D3V
SUBC
K302
K303
NQR0007-002X
NQR0007-002X
C317
1/16
C316
100/4
0.1/16
C327
C326
100/4
D.GND
TP306
0
R318
0
R317
C315
R316
0.1/16
1M
X301
C314
0.1/16
R347
R348
R349
R350
C311
0.1/16
CPUD2
CPUD1
C408
22/6.3
C407
0.1/16
TP413
D.GND
NAX0375-001X
C312
C313
18P
18P
TP149
TP148
1K
1K
1K
1K
C325
NI
TP141
C310
0.1/16
CPUD0
R416
4.7k
R415
4.7k
R414
4.7k
C406
0.1/16
R413
4.7k
R412
10K
R411
4.7k
/ADPD
TXSEL
ADSCTX
IPFLAG
R346
4.7K
NTRON
LG
JMPINH
TP307
TP305
TP304
TP175
NI
R363
ADSCIRQ
SDOUT
SDIN
CPSCK
U2SDT
S2UDT
SCLKO
EPDO
EPDI
EPSK
EPCS
HSSEEK
CIRCEN
REQ
BUSY
SLEEP
FEPEN
ADSCEN
TP415
TP309
PLLOK
SYSCLK
CPDET1
CPDET2
BDO
R367
NI
0
R364
CPURST
EPCS
EPSK
TP425
TP420
TP419
CPUA19
CPUA18
CPUA8
CPUA7
CPUA6
CPUA5
CPUA4
CPUA3
CPUA2
CPUA1
/RD
CPUD0
CPUD1
CPUD2
CPUD3
R431
K401
NQR0007-002X
R434
D5V
NI
TP308
NI
R366
D.GND
WAITDEC
DECIRQ
CSDEC
LSIRST
K402
NQR0007-002X
R433
D5V
NI
C412
0.1/16
IC403
AK93C65AF-X
TP174
TP173
4.7k
IC402
MSM531622F**G-X
EPDO
EPDI
R432
4.7k
D3V
IC372
K371
NI
R365
NI
C373
0.1/16
D.GND
CPUA20
CPUA9
CPUA10
CPUA11
CPUA12
CPUA13
CPUA14
CPUA15
CPUA16
CPUA17
CPUA0
CPUD7
CPUD6
CPUD5
CPUD4
C411
0.1/16
D.GND
C148
NI
TP103
NI
R135
NI
R141
TD
C101
NI
R156
0.1/16
C153
C271
0.022/16
D2.7V
C5
15/6.3
NI
C7
TP91
NI
TA
560P
Q101
33K
R144
R145
15/6.3
C152
0.0033/25
R288
10K
C288
Z3V
NQL044K-100X
C6
TP92
NI
R140
2SB1424/QR/-X
27
R103
33K
10K
K103
C151
15/6.3
C272
R275
10K
0.1/16
L1
0.1/16
TP93
TP565
C107
NI
C108
NI
C109
47/6.3
NQR0007-002X
330P
C289
IC102
RN5RZ33BA-X
R274
C277
C11
NININI
C10C9C8
TP94
NI
R137
IC104
NI
R107
TGBAL
R109
TBAL
FBAL
R111
Q102
2SB1424/QR/-X
SLEEP
FEPEN
C110
NI
CPSCK
SDOUT
27
R104
JLINE
C111
NI
C112
47/6.3
LDCUR
CD/DVD
HMFON
TP176
Q275
DTC144EE-X
T-
T+
F-
F+
0
C275
NI
NI
NI
C273
C274
R276
10K
C276
0.1/16
0.1/16
TP280
NI
NI
C287
C285
C286
1
R297
SM+
FM+
FM-
SM-
C284
0.047/16 NI
R284
R289
C283
0.022/16
R290
IC1
RN5RZ33BA-X
C15
0.1/16
C16
10/6.3
100/6.3
C12
0.1/16
S.GND
NI
R158
R159
CN101
7
6
QGF0501F3-40X
TP1
TP2
C103
0.1/16
TP3
TP4
TP5
SLEEP
TP6
TP7
0.1/16
RF-
RF+
F2
F1
TD
TA
F1CD
T1CD
T2CD
F2CD
F-
F+
T-
T+
SM+
SM-
FM+
FM-
C102
TP8
TP9
TP10
TP11
TP12
TP13
HAGUP
TP14
TP15
TP16
0.1/16
C105
TP17
TP18
C104
TP21
0.1/16
C106
TP22
TP23
D5V
TP27
TP25
TP28
TP32
D.GND
TP31
TP30
TP29
TP33
TP34
TP35
TP36
TP26
5
R271
56K
R272
10k
D5V
1
NI
K271
R273
4
TP571
IC271
M56788FP-W
M9V
C292
22/6.3
C291
C293
0.1/16
22/16
NI
C290
3
D.GND
M.GND
2
Q1
TP37
TP41
MICOUT
TP38
TP39
A.GND
TP40
D5V
TP42
TP43
D.GND
TP44
TP45
M9V
M.GND
CN501
QGB2027L1-10X
2SD2150/RS/-W
R1
10
C17
0.1/16
A.GND
C3
C2
C4
22/6.3
22/6.3
0.1/16
0.1/16
D.GND
1
NI
C149
TP102
R138
TP109
NI
NI
NI
R133
C147
NI
R134
NI
R136
NI
R130
R108
18K
0
R110
27K
0
R112
27K
R154
0
R155
NI
NI
NI
C117
C116
C115
C118
NI
NI
R146
R147
NI
Q104
Q271
NI
R278
10k
R277
10k
C278
C279
0.001
2700P
TP277
R287
10K
R295
10K
C294
NI
10K
10K
R286
R296
R285
10k
NI
C282
R283
4.7K
10K
10K
TP281
10K
SPDRV
S5V
D5V
M9V
NI
NI
C14
C13
M.GND
T2CD
T1CDTATDF1F1CD
8.2K
10K
R131
R132
C145
0.01/16
R124
C146
NI
R166
1.8K
0
R160
NI NI
R106 R105
NI
0
R114R113
1K6.8K
220P
C119
0.15/16
R116
39K
NI
R117
24K
12K
NI
R165
R115
C120
82P
R164
S3V
D3V
R118
NI
Q105
C280
NI
R279
10K
22K
C121
22P
C122
270P
TE
AS
FE
C156
R150
R148
NI
NI
NI
NI
R149
D5V
NI
R291
D271
NI
TDOFS
R280
10K
/DRVMUTE
Q274
TP278
NI
TP279
R282
10k
C281
0.01/16
0
R123
R151
R161
AN8702FH
TRSDRV
F2CD
F2
0
R162
0
0
0.1/16
C143
C144
0.1/16
IC101
TP107
TP108
C123
C124
0.1/16
TG
NI
Q103
NI
22K
R292
RF-
RF+
0
0
0
R125
R126
R163
R122
0
R121
TESTSG
RFENV
BDO
OFTR
TP567
C127
0.001
C129C1C128
0.1/16
C159
C158
NI
0.1/16
0.1/16
ARF+
ARF-
HSSEEK
FE
TE
LDCUR
TG
RFENV
AS
ARF+
ARF-
0
C138 C139
0.1/16
NI
C125
0.1/16
0.1/16
C141
22/6.3
C140
0.1/16
NI
R119
C136
0.047/16
C135
NI
C137
TP110
0.027/16
C134
560P
1M
R129
C133
560P
R128
1M
C132
0.1/16
R127
C131
2.2K
12P
C130
0.1/16
TP101
TP568
S5V
S3V
K101
NI
R152
1
R153
4.7
K102
NQR0007-002X
56/6.3
0.1/16
33/4
C161
C126
C160
S.GND
Q201
NI
0
0
R256
R257
TP233
R211
27K
R212
27K
5.6K
R213
C264
0.47/16
12K
R255
NI
TP234
R201
HSSEEK
NI
C201
330P
C203
C204
R254
47K
R202
47K
R203
47K
R204
47K
R205
470P
270P
C207
C206
C205
R208
47K
R209
12K
R210
47K
C208
0.1/16
C209
0.001
C210
0.001
C222
0.0056
R215
NI
12K
0.001
C223
C211
0.1/16
C224
R214
C261
0.1/16
C262
0.1/16
15K
R218
NI
C226
0.001
C227
0.001
C228
R219
47K
C239
0.018/16
C240
47P
TP212
TP201
Q203
NI
Q202
NI
CD/DVD
NI
NI
560PNI560P
R207
R206
560P
C202
C260
120P
TP220
1M
C230
NI
TP202
TP231
TP214
TP215
TP216
TP224
TP227
TP228
TP217
TP218
TP219
TP221
C225
1/16
TP211
C237
0.1/16
TP210
47K
R220
TP208
47K
R223
C241
0.01/16
C263
0.01/16
C245
0.1/16
TESTSG
D5V
R344
K301
NI
NQR0007-002X
/WR
/RD
C345
100/6.3
C346
1/16
D.GND
DAT3
DAT2
DAT1
DAT0
CHCK40
220
220
220
220
220
CPSCK
SDOUT
ADSCEN
CIRCEN
0.1/16
R241
R240
R239
R238
R237
C238
TP225
TP226
IC201
MN67706ZY
0.1/16
C246
TP203
TP204
C242
1/16
18K
27K
R225
6.8K
R228
1K
R227
0.1/16
C244
JLINE
TGBAL
R232
4.7K
R233
4.7K
R234
27K
R229
R230
TBAL
FBAL
4.7K
0
R235
C247
0.1/16
C248
0.15/16
C249
0.1/16
C250
0.1/16
C251
0.1/16
BDO
OFTR
IC312IC311
TC7SH32FU-XTC7SH08FU-X
C341
SPDRV
TRSDRV
D5V
C252
0.1/16
C253
0.1/16
TP570
47K
47K
47K
C255
0.1/16
TP207
TP206
TP205
TP213
R249
R248
R250
C254
33/4
NQR0007-002X
C257
1/16
C259
1/16
C342
R221
R242
R243
R244
K202
C256
100/4
R341
R342
0.1/160.1/16
NI
K201
NQR0007-002X
R252
NI
C258
100/4
TP301
1k
R312
NI
R343
1k
0
ADSCIRQ
0
R224
1K
1K
1K
TP232
1K
R245
1K
R246
R253
IC202
D2.7V
4.7
R222
NI
TC7WT125FU-X
K203
NQR0007-002X
IC321
TC7WH74FU-X
S3V
SDIN
NCLOCK
IPFLAG
NTRON
JMPINH
PLLOK
CPDET1
CPDET2
D3V
D.GND
SYSCLK
S3V
S.GND
TP131
STD7
TP132
STD6
STD5
STD4
STD3
STD2
STD1
STD0
STEN
ODCIRQ2
ODCIRQ
TP160
C344
C343
0.1/16
0.1/16
TP167
SUBC
LG
TP405
R302
TP133
47k
R303
47k
TP134
R304
TP135
47k
R305
TP136
47k
R306
TP137
47k
TP138
TP139
D301
NI
1k
R311
1k
5.6K
R345
R310
IC322
TC74VHC00FT-X
TP161
/RD
/WR
TP164
CPUA0
CPUA1
CPUA2
CPUA3
X401
C413
NI
NAX0331-001X
AVRTM
TP158
R331
TP159
R301
47k
0.1/16
C324
0.1/16
C301
C302
0.1/16
R307
47k
R308
47k
R309
C303
0.1/16
10K
TP302
R332
NI
C304
0.1/16
TP303
C305
0.1/16
TP140
CPUA17
CPUA16
CPUA15
TP162
TP163
TP401
TP166
TP165
R403
R404
4.7k
NI
TP169
C401
R405
0.1/16
4.7k
C402
0.1/16
TP170
R408
R407
NI
4.7k
R409
NI
C414
NI
BCDEFGH I JA
2-7
Page 8
XV-521BK/523GD/525BK/421BK
DSP circuit
7
6
5
MD0
MD1
MD2
4
3
MD3
MD4
MD5
MD6
MD7
LDQM
/MWE
SD_CAS
SD_RAS
MA11
MA10
MA0
MA1
MA2
MA3
C542
22/6.3
C543
0.1/16
IC505
KM416S1120DT-G8
D5V
NI
K511
D512
NI
C590
R592
NI
NI
R591
C589
NI
NI
NI
NI
D514
K502
Z3V
NQR0007-002X
D501
1SR154-400-X
K506
NQR0007-002X
CPUD0
K504
NQR0201-001X
Z3V
C540
22/6.3
C541
0.1/16
IC504
KM416S1120DT-G8
MD15
MD14
MD13
MD12
MD11
MD10
MD9
MD8
UDQM
SD_CLK
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
LDQM
/MWE
SD_CAS
SD_RAS
MA9
MA8
MA7
MA6
MA5
MA4
MA11
MA10
MA0
MA1
MA2
MA3
MD15
MD14
MD13
MD12
MD11
MD10
MD9
MD8
UDQM
SD_CLK
MA9
MA8
MA7
MA6
MA5
MA4
D.GND
CPUD1
CPUD2
CPUD3
CPUD4
CPUD5
CPUD6
CPUD7
LSIRST
R501
1k
WAITDEC
DECIRQ
R502
2.2k
NQR0007-002X
C534
100/6.3
C533
0.1/16
K501
D.GND
NI
R549
/WR
/RD
C530
100/6.3
C531
C532
0.1/16
0.1/16
C556
100/6.3
C557
0.1/16
C501
0.1/16
C502
0.1/16
C503
0.1/16
C504
0.1/16
C505
0.1/16
C506
0.1/16
C507
0.1/16
C508
0.1/16
D.GND
MD14
MD0
MD15
C550
D511
NI
NI
C599
NI
C596
NI
NI
C595
NI
NI
C592
C591
C594
NI
D513
C593
NI
0.01/16
0.1/16
C536
C535
AVRTM
STVALID
0
0
R544
R543
CPUA0
CPUA1
CPUA2
R545
4.7k
0.1/16
C529
0.1/16
0.1/16
C510
C509
MD11
MD3
MD12
MD2
MD13
MD1
C547
NI
NI
C546
C545
NI
A.GND D.GND
STEN
STCLK
0
0
R542
R541
0.1/16
C528
0.1/16
C511
MD10
MD4
IC511
NI
TP530
C572
C566
D3V
K550
C568
NQR0007-002X
0.1/16
C569
Z3V
TP505
R531
33
K503
NQR0007-002X
K507
0.1/16
C537
IC502
22/6.3
NAX0393-001X
C538
TP507
D.GND
TP506
STD5
STD6
STD7
33
33
R540
R539
R538
C512
MD9
MD5
VCLK
STD3
STD4
STD0
STD1
STD2
33
3333333333
R533
R534
R535
R536
R537
C527
IC501
ZIVA3-PE0
0.1/16
0.1/16
C513
333333
R504
R505
MD7
MD8
MD6
LDQM
UDQM
0.1/16
R506
/MWE
0
R532
NQR0269-001X
K505
SD_CLK
R530
180
R528
180
0.1/16
0.1/16
C515
C514
33
33
33
33
R508
R510
R509
R507
SD_CAS
SD_RAS
R550
DA_BCK
180
R529
C526
C516
0
DA_LRCK
DA_DATA3
DA_DATA2
180
180
180
R525
R526
R527
0.1/16
0.1/16
3333333333
R511
MA9
DA_DATA1
180
R524
R512
MA11
VSYNC
HSYNC
DA_DATA0
180
R523
0.1/16
C525
VD7
VD6
VD5
VD4
C524
0.1/16
VD3
VD2
C523
0.1/16
VD1
VD0
C522
0.1/16
C521
0.1/16
C520
0.1/16
C519
0.1/16
33
R522
MA3
33
R521
MA4
33
R520
MA2
33
R519
MA5
33
C518
R518
0.1/16
0.1/16
C517
33
R513
R514
R515
R516
MA8
MA10
MA7
MA0
MA1
33
R517
MA6
R558
NI
D5V
D552
1SS355-X
NI
R561
NI
R562
R563
NI
NI
R567
1.5k
R564
C561
0.1/16
3.3k
R565
C562
22/6.3
NI
R566
1K
R589
1K
R588
D551
NI
R568
1SS355-X
NI
R569
NI
R570
R571
10
D.GND
YOUT
22/6.3
NI
NI
R590
R596
MC44724AVFU
TP504
1.2K
1.2K
0.1/16
0.1/16
R587
R586
C570
C563
COUT
CVBS
PbOUT
PrOUT
Y
CS3
/NTSC
RSTE
SCK
RXD
NI
R585
NI
NI
C567
K561
NQR0007-002X
K568
NQR0007-002X
K569
NQR0007-002X
K570
NQR0007-002X
K571
NQR0007-002X
K572
NQR0007-002X
NI
IC555
R583
R584
NI
HSYNC
DA_DATA0
DA_DATA1
DA_DATA2
DA_DATA3
DA_LRCK
DA_BCK
VSYNC
VD0
180
R580
VD1
180
R579
VD2
180
R578
VD3
180
R577
VD4
180
R576
VD5
180
R575
VD6
180
R574
VD7
180
R573
D.GND
0.1/16
C565
TX
U2SDT
S2UDT
SCLKO
REQ
BUSY
CPURST
CS3
SCK
RXD
TP503
/NTSC
R572
180
VCLK
RSTE
TP49
TP47
TP48
TP50
CN503
NQR0007-002X
CVBS
K551
K553
NQR0007-002X
K554
YOUT
NQR0007-002X
K555
NQR0007-002X
NQR0007-002X
COUT
K556
NQR0007-002X
PbOUT
K557
NQR0007-002X
K558
PrOUT
Y
K559
NQR0007-002X
K562
K563
K564
K565
K566
K567
K574
K575
K576
K577
K578
K579
D.GND
QGB2027L1-10X
TP54
TP52
TP53
TP51
QGB2027L1-22X
CN502
TP55
TP56
TP57
TP58
TP59
TP60
TP61
TP62
TP63
TP64
TP65
TP66
TP67
TP68
TP69
TP70
TP71
TP72
TP73
22/6.3
180
R582
100
R581
0.1/16
C564
NQR0007-002X
NQR0007-002X
NQR0007-002X
NQR0007-002X
NQR0007-002X
NQR0007-002X
NI
C571
0.1/16
D.GND
IC554
D.GND
2-8
Z3V
C539
0.1/16
IC503
TC74VHC00FT-X
2
/ADPD
MICOUT
R548
3.3k
R547
2.2k
ADSCTX
TXSEL
Digital video signal path
Digital audio signal path
DECTX
D.GND
Digital data signal path
Video signal path
1
BCDEFGH I JA
Page 9
Power supply circuit
XV-521BK/523GD/525BK/421BK
T901
C906
C902
0.068
1000p/AC250V
L901
QQR1105-001
IC901
STR-G6651
D901
S1WB/A/60-4101
R905
C908
3300P/1K
C907
C913
R911R910
750K750K
68k
R907
0.47
K902
R906
R901
68K
C909
D904
ERA18-04-T1
D910
ERA18-04-T1
PC902
PC123F
100P
R903
27
D908
ERA18-04-T1
R904
2.2k
C910C915
220P470P
R900
220
D903
ERA18-04-T1
D902
ERA18-04-T1
C914
680
39/25
7
BK901
E409182-001SM
P901
6
5
QQS0028-001
R969
220
C951
100p
D951
ERA18-04-T1
C952
100p
D952
ERA18-04-T1
CP951
ICP-N10-T
C960 C961
82/10 1.5
R980
C994
0.022/25
L952
100
470/10
Q953
2SA1175/FE/-T
2.7K
C966
D950
R954
L951
C963
39/35
C953
D953
0.22
C964
22/50
100p
FMB-24
C965
1000/10
4.7
Q951
2SC2060/QR/-T
C962
22/50
D960
R955
22k
MTZJ2.0A-T2
MTZJ22C-T2
IC951
C967 C968C969
0.1 0.1220/10
Q964
2SB1565/EF/
R972
1.2k
Q965
2SC2785/FE/-T
R971
4.7k
D970
1SS133-T2
R953
10K
Q952
KRA104M
PQ05RD21
R952
10k
HS964
LE40505-001A
C970
0.1
C973
100/10
R956
10
CN971
QGB1216J1-06S
PC901
PC123F
4
R908
3.3K
3
2
C918
D911
1SS133-T2
0.1
Q991
2SC2785/FE/-T
C916
0.0033
C993
100p
0.47/50
R960
C992
100
R961
R962
R963
C954
D954
ERA18-04-T1
C979
820/16
C984
220/25
C989C987
100/25180/25
100p
D991
1M
R964
680
R965
10k
C956
100p
L957
100
D956
ERA18-04-T1
C982
560/25
D957
ERA18-04-T1
L959
100
C957
100p
CP952
ICP-N5-T
L955
100
C997
220/16
D973 D974
1SS133-T2 1SS133-T2
R976
220
D972
1SS133-T2
C995
220/16
0.1
C976
C981
1.5
Q966
2SA1175/FE/-T
5.6K
R974
IC953
NJM78M05FA
R975
5.6k
R973
1K
C996
22/16
C977
0.1
C978
100/10
QGB2011L1-08 QGB2011L1-08
CN951 CN961
1
BCDEFGH I JA
2-9
Page 10
XV-521BK/523GD/525BK/421BK
Display circuit
7
2.2K
R814
2.2K
R802
7G
6G
R844
2.2K
R803
R821
B8004
R813
AIN2
S821
R809
1K
1K
1K
1K
1K
R808
R807
R806
AIN0
AIN1
AIN2
RESET
SCLK
SOUT
SIN
CS
DI801
QLF0064-001
S831
S832
S833
S834
S835
AIN0
R845R847
R846R848
4301.1K
6802.2K
IC801
GP1U271X
SCLK
SOUT
CS
SIN
RESET
D.GND
AIN1
B5V B5V
CN801
QGF1205F1-08
D.GND
AIN1
2.2K
R804
R805
2.2K
S841
QVQ0123-B15
S842
S843
R816
430
1G2G3G4G5G
S14
S13
S12
47/6.3
C812
C811
0.1
S11
IC802
M35500BGP
0.1
C813
22P
2.2K
R801
C814
S801
S10
S9
D801
6
SLR-342VC-T
POW.SW
STANDBYIND
B5V
D.GND
FW841
FW802
S8
S7
S6
S5
S4
S3
S2
S1
5
S811
4
CN832
QGB1216K1-06S
C801
0.1
S10
S11
S12
S13
S1S2S3S4S5S6S7S8S9
3
S14
1G2G3G4G5G6G7G
4.7/50
C821
C802
47/10
2
1
BCDEFGH I JA
2-10
Page 11
XV-521BK/523GD/525BK/421BK
Voltage value section
7
6
5
4
3
2
1
BCDEFGH I JA
2-11
Page 12
Printed circuit boards
MAIN board
7
6
5
XV-521BK/523GD/525BK/421BK
(suface side)
4
3
2
1
BCDEFGH I JA
2-12
Page 13
XV-521BK/523GD/525BK/421BK
(bottom side)
7
6
5
4
3
2
1
BCDEFGH I JA
2-13
Page 14
DVD Servo
XV-521BK/523GD/525BK/421BK
7
6
5
(suface side) (bottom side)
4
3
2
1
BCDEFGH I JA
2-14
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