Table of Contents
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AV SELECTOR PWB CIRCUIT DIAGRAM
R552
R501
1k
18k
R520
SV1/OTH
X
J501
D501
R553
∗
6
22k
C501
R521
QNZ0454-001
10/50
C1
1.5k
R502
D502
∗
82
Y501
0
6
R522
C502
1.5k
10/50
Y1
C
Y
LC501
X
D503
R503
R523
∗
6
82
X
Y502
0
Y503
0
LC502
INPUT1
X
V
V1
D504
R504
∗
6
D505
75
∗
6
L
L1
L1
R506
Y504
0
R505
D506
C504
∗
82k
1k
6
1/50
C503
R
R1
10/50
R1
R507
R508
82k
1k
C505
D507
∗
1/50
6
R554
R509
D508
X
X
R532
X
SV2/OTH
J502
J502
J502
X
R555
C508
QNN0348-001
X
R533
X
C2
X
D509
R510
X
X
Y505
X
R534
C509
X
X
Y2
C
Y
LC503
D510
R511
X
R531
R535
X
X
X
X
Y506
X
INPUT2
BP
C510
X
L2
L
L2
R513
R512
D511
BP
C515
∗
82k
1k
6
1/50
R2
C511
IC501
R
R2
10/16
R514
R515
C516
D512
CTL LOGIC
82k
1k
∗
1/50
6
V3
CN006
QGA2501C5-05Z
D513
∗
R3
6
D514
∗
GND
6
L3
C512
TO FRONT AV-IN
L3
L3
10/50
PWB CN006
D515
GND
∗
6
V3
R3
R3
C513
X
D516
∗
6
C514
IC501
1
10
10/50
1.0Vp-p(H)
Q506
E
2.0Vp-p(H)
J503
QNN0348-001
R395
220
L
R393
AUDIO OUT
82k
R
R396
R394
220
82k
∗
Q387
8
Q386
X
Q385
SWITCH
SWITCH
SWITCH
0V
0V
0V
MPX
0V
R387
R386
R385
CNMPX
22k
X
22k
QGA2501-F1-05
NC
SOA
RTV1
(FOR ADJ.)
LTV1
SWITCH
No.51800C
R525
R526
R527
Q502
1.8k
10k
27k
∗
2
BUFFER
Q501
∗
2
C507
AMP
10/16
BP
C506
47/25
R528
R524
R529
18k
1.8k
5.6k
IC502
BA7612N
VIDEO SELECTOR (PiP)
R550
1k
VPIP
R551
1k
C528
47/25
C527
-0.01
9V
R537
R538
R539
Q504
X
X
X
X
Q503
X
C524
X
BP
NC
C523
X
R540
R536
X
R541
X
X
NC
(MAIN)
BA7644AN
VIDEO SELECTOR
CTL MUTE
B
5.6V
R544
R545
R546
1.8k
X
27k
Q505
∗
2
8.8V
8.8V
3.9V
AMP
C520
4.9V
C526
10/50
C521
Q506
0.01
R542
∗
47/25
2
820
3.2V
BUFFER
R543
R547
R548
1.8k
22k
2.2k
C522
47/25
C518
C519
0.01
47/25
C391
.47/50
L
VARI_L
D391
R391
∗
6
220
C392
.47/50
R392
D392
∗
220
6
Vcc
R377
∗
8
Q384
X
4.7k
SWITCH
0V
GND
R378
C374
4.7k
X
0V
R384
X
IC381
TC4066BP/N/
SWITCH
VARI_R
R
R382
R381
22k
5.6k
0V
Q382
7.1V
∗
4
SWITCH
7.1V
0V
0V
IN1/OTH
0V
Q381
∗
4
SWITCH
A_MUTING
AV-27260
AV-27260
PiP Video SW(IC502) BA7612AN
IC504
1
(CTL A)
(CTL B)
OUT
0.9Vp-p(H)
SEL_3
SEL_4
L
L
V1(IN1)
L
H
S1(IN2)
H
L
V3(IN3)
Main Video SW(IC501) BA7644AN
23
(CTL A)
(CTL B)
OUT
SEL_1
SEL_2
0.7Vp-p(H)
L
L
V1(IN1)
L
H
V2(IN2)
H
L
V3(IN3)
H
H
VTV(IN4)
5
1.39Vp-p(H)
AV SELECTOR PWB ASS'Y
SGC0S003A-M2
R210
0
L243
4.7 QQL244K-4R7Z
QQL244K-4R7Z
L201
IC201
L244
BW
TC90A53N
BW
EF201
X
Y201
X
3L DIGITAL COMB FILTER
C201
C203
X
X
L242
C206
C205
4.7
C242
0.01
VRB
C209
C208
C204
0.01
47/50
VREFL
X
X
X
1.5V
L241
BW
C241
0.01
VSS1
VDD4
0V
(L211)
QQL244K-4R7Z
C213
VDD1
VREF
R211
5.0V
47p CH
15k
C231
10/50
C211
8.9V
Q211
VRT
R217
∗
2
VREFH
YOUT
10/50
R215
1k
8.8V
3.5V
R214
1.5k
C243
0.01
5.9V
180
ADIN
BIAS2
R218
4.5V
1.8V
5.2V
2.2k
5.2V
C244
0.01
L211
4.7
Q212
BIAS1
COUT
R212
R213
∗
1.4V
C212
C214
2
33k
1k
C215
R242
470k
100p
180p
R216
.47/50
CLAMPC
BIAS3
CH
CH
1.8k
C237
3.2V
4700p
TEST
R243
10k
5.0V
0V
C238
0.01
R223
R232
1/2VDD
VDD3
R235
R244
10k
R229
2.5V
0
1k
100
47k
C247
0.01
4.7V
4.7V
VFIL
CORING
Q219
Q218
R241
1.7V
C223
EF202
∗
∗
2
1
820
0.01
1.6V
X
CKIN
1LINE
1.0V
C246
180p
2.2V
1.0V
CH
R231
C232
VDD2
VENH1
R230
100
10/50
C226
5.0V
R234
R236
22k
R233
0.01
1k
100
2.7k
VSS2
VENH0
C245
0V
0.01
KILLER
CBPF
0V
9V
IC371
(1/2)
R157
R155
BA15218N
X
X
AMP
4.4V
4.4V
C155
C371
R159
X
R153
C153
1/50
X
B2
X
X
BP
4.4V
C157
X
R375
33k
R373
R371
10k
10k
C373
R374
R372
10k
10k
47/25
R376
33k
C160
8.8V
X
B2
C372
C156
R154
C154
C159
1/50
BP
X
X
X
4.4V
X
B2
4.4V
IC371
(2/2)
BA15218N
AMP
4.4V
CN001
CN001
QGB1505K1-35
TO MAIN PWB CN001
2-11
2-12
R558
X
Y1
IN1/OTH
IC504
10
Q513
X
0.55Vp-p(H)
GND
IC503
X
SWITCH
IC201
IN1/OTH
25
1.1Vp-p(H)
C1
C2
Y2
VTV
L251
R565
22k
BW
SV/CV
C252
C236
0.01
0.01
(L202,L301)
VSS4
0V
C235
R255
10/50
0
GND
C251
∗
Q511
4
8.9V
5.0V
47/50
C254
8.8V
R238
Q252
SWITCH
X
8.2k
8.8V
X
IC504
0V
Q253
Q251
TC4066BP/N/
R239
12k
∗
2.9V
3.2V
2
∗
2
SWITCH
R252
X
2.1V
0V
C239
0.01
3.2V
R258
100
2.5V
R254
0
R251
L202
1.7V
R259
1.5V
C249
0.01
470
15
2.2k
C253
C255
R253
SV/CV
L202
4.0V
2.2k
39p
680
C248
0.01
QQL244K-150Z
CH
3.5V
8.8V
C532
VSS3
0.01
C234
0V
R574
Q261
0.01
∗
C262
8.8V
470
2
4.0V
X
R269
R249
5.0V
Q262
0
C233
R264
Q263
X
∗
2
R573
10/50
X
X
R261
X
0V
R248
100
3.3V
2.1V
X
R263
2.7V
C533
R262
470
X
0V
R247
R265
R270
2.2k
100
C261
C263
1k
0
Y202
2.2k
15p
0V
R246
X
Q508
E
CH
X
Y203
L261
15
0V
R245
X
QQL244K-150Z
2.1Vp-p(H)
X
0V
C343
1/50
Y151
0
C151
R151
X
X
BP
FIXED
EXT1 IN
EXT2
IN
TV
OUT
TONE/SURROUND
LINE OUT
IC001
UPC1851BCU
MTS & TONE/VOL
CONTROL
IC151
PIROT DET PHASE
DET
SAP DEMODULATION
X
BBE IC
C152
C081
C087
X
BP
0.1
0.1 B2
R152
b2
X
C331
C082
4.7/50
100/16
C332
C333
BP
C084
C088
C089
R088
Y152
C086
0.01
47/25
2.2/50
0.1
3.3/50
1.5k
0
.47/50
C090
R082
B2
1/50
6.8k
R083
15k
SOA
No.51800C
Y551
0
Vcc
R559
X
IN1/OTH
Q512
Y552
X
0
VTV
C534
R561
2.2k
X
8.8V
R563
R562
C531
X
470
∗
0.01
R564
Q508
2
1.5V
X
BUFFER
0.8V
R566
0
YOUT
R567
1.5k
Vcc
8.8V
∗
Q509
2
R568
18k
BUFFER
3.1V
R569
R571
10k
2.5V
0
COUT
R572
5.6k
R570
0V
1.5k
SV/CV
Q510
∗
4
5.0V
SV/CV
SWITCH
Q509
E
1.7Vp-p(H)
FSC
VPIP
SCL0
SDA0
R331
100
VARIABLE
IIC
BUS
LINE
OUT
dbx
NR
C092
C094
1/50
4.7/50
C091
C093
C095
10/50
1/50
1/50
NOTE
∗
1
: 2SA1037AK/QR/-X
∗
2
: 2SC2412K/QR/-X
∗
4
: UN2212-X
∗
6
: MTZJ9. 1C-T2
∗
8
: DTC323TK-X
BW
: IM-BW
0
: NRSA63J-0R0X
X
: NON MOUNT
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