Sony FD Trinitron KV-28FX65B Service Manual page 32

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5-1. BLOCK DIAGRAMS (2)
CN8900
AV1
7 BLUE IN
11 GREEN IN
15 RED IN
16 BLANKING
IC8801
MAIN AUDIO/VIDEO SWITCH
1 RIGHT OUT (1)
32 RTV
2
RIGHT IN (2)
36 (R2) AV1-R
3 LEFT OUT (3)
25 LTV
DIGITAL COMB FILTER
6 LEFT IN (4)
(L2) AV1-L
29
8 MODE (1)
18 MODE 1
19 VIDEO OUT (2)
20 VIDEO IN (3)
6 CLOCK IN
60 AV1-V (CV IN 2)
CN8901
AV2
1 RIGHT OUT (5)
40 (R02) AV2-R OUT
2
RIGHT IN (6)
35 (R3) AV2-R
MAIN Y OUT 11
3
LEFT OUT (7)
41 (L02) AV2-L OUT
MAIN C OUT 13
6 LEFT IN (8)
28 (L3) AV2-L
10 MODE (2)
MODE 2
19
10 AV LINK
15
C IN (5)
52 AV2-C(C1)
(CO2)
19 VIDEO OUT (6) 47
SUB C OUT
9 AV2 OUT(CV01)
(YO2)
20 45
VIDEO IN (9) SUB Y OUT
58 AV2-V(Y1)
CN8902
A4V
1 RIGHT OUT (9)
2
RIGHT IN (10)
33 (R5) AV4-R
3
LEFT OUT (11)
6 LEFT IN (12)
26 (L5) AV4-L
8 MODE 4 (3)
20 MODE 3
15
C IN AV4 (4)
49 (C3) AV4-C
19 VIDEO OUT
20
VIDEO IN AV4 (3)
54 AV4-V(YB)
CN8101
(1/2)
A13 AV LINK
A8
AV3 LUM IN
56 AV3-V(Y2)
A7 AV3 C IN
51 (C2) AV3-C
A6 AV3 RIGHT IN
34 (R4) AV3-R
B6 AV3 LEFT IN
27 (L4) AV3-L
B14 SCL
TO A BOARD
A14
CN1801 SDA
A10 CVBS1 IN AMP
Q8818
A15 CVBS OUT (TEXT) SDA
6 AD IN SDA 16
B15 AUDIO RESET SCL
SCL 15
AM1
B9 IC8700
AUTOWIDE
A9
QSSI IN
35
IC8301
MAIN COLOR DECODER
25 B I
26 G I
27 R I
CN8101
YS 3 (2/2)
15
V-M (2) A2
SFC OUT AMP
46 Cr OUT 23
Q8308
SCL 13 SCL
AMP U-M (1) A25
Cb OUT 22
Q8309
SDA 14 SDA
AMP Y-M (3) B25
IC8500 Y OUT 21
Q8310
B4
AMP MAIN L HEADPHONE LEFT OUT
LUMINANCE OUT 16 5 COMB Y MAIN L OUT 39
Q8300
MAIN R HEADPHONE RIGHT OUT A4
MAIN R OUT 38
AMP COMB C/
CHROMA OUT 15 7
Q8302 FORGED S HPR SURROUND SPEAKER (4) A3
HPR OUT 3 24
HPL CENTRE SPEAKER (1) A2
PNR 16 45 COMB SYS HPL OUT 3 23
A1
LEFT SPEAKER (3) TO A BOARD
CN1801
NTPLI 15
RIGHT SPEAKER (2) B1
HEADPHONE RIGHT OUT A4
CVBS/YI CVBS OUT 3
1
HEADPHONE LEFT OUT B4
CI
48
HP MUTE A5
IC8401
A11
SUB COLOR DECODER QSS 2
AMP Y-S (7) A21
Y OUT 21
Q8406
48 CI
AMP U-S (8) A20
U OUT 22
Q8405
1 CVBS/YI
B19
AMP V-S (9)
V OUT 23
Q8403
AM 2 B11
IC8802
SUB AUDIO/VIDEO SWITCH
11 AV4 C
4 AV4 Y 3
Y OUT
15 AV3 C C OUT 13
2 AV3 Y
36
10/16/2012
IC8200
SOUND PROCESSOR
AUDIO
RESET
21 POWER ON RESET
QSS1 BUFFER
67 IF IN1
Q8200
BUFFER
68 IF COMMON IN
Q8201
69 IF IN 2
OUTPUT AMP
SURROUND OUT 25 12 SUR. IN
AM1
60 MONO IN (AM)
SPEAKER OUT R 27 10 RIGHT IN
SPEAKER OUT L 28 5 LEFT IN
71 XTAL IN
X8200
18.432MHz SUBWOOFER OUT 30 3 CENTER IN
XTAL OUT
72
CENTER OUT 24
MAIN L
56 AV MAIN L IN
MAIN R
57 AV MAIN R IN
RIGHT OUT (9)
36
TV OUT R
LEFT OUT (11)
37 TV OUT L
IC8151
I2C SWITCH
SDA 14 SDA SCL 2 SCL
SCL 15 SCL SDA 3 SDA
IC8150
FM DEMULATOR
1 AM IN
SW 13 3 DA 4 SWO 2
3 FM SIF
IC8101
HP OUT
HP L
6 L IN L OUT 8
HP R
7 R IN R OUT 1
HP MUTE SWITCH
Q8100, Q8101
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TU1326
SCL 4 SCL
SDA 5 SDA
AGC
11 AGC MONITOR
MONITOR
AM1 14
BUFFER
QSS1 15 Q1328,
Q1329
CVBS1 16
CN1801
A9 QSS 1 OUT
B9 AM 1
A10
CVBS 1 OUT
A11
QSS2 OUT
B11 AM 2 OUT
A12 CVBS 2 OUT
AUDIO LEFT
A1
A3 AUDIO SURROUND
A2 AUDIO CENTER
B1 AUDIO RIGHT
A5 HEADPHONE MUTE
IC8201 A4 HEADPHONE RIGHT IN
HEADPHONE LEFT IN
B4
SURROUND SPEAKER (4)
SUR. OUT 14
A6 AV3 RIGHT OUT
RIGHT SPEAKER (2)
B6 AV3 LEFT OUT
RIGHT OUT 8
A7 AV3 CHROMA OUT
LEFT SPEAKER (3)
LEFT OUT 7
A8 AV3 LUMINANCE OUT
CENTER SPEAKER (1) TO J BOARD
CENTER OUT 1 A13 AV LINK I/O
CN8101
B13 MODE (PIN B)
A15 CVBS IN (TEXT)
B15 AUDIO RESET
B18 H PULSE SUB IN
A19 V PULSE SUB IN
B19 V SUB IN
A20 U SUB IN
Y SUB IN
A21
B22 H PULSE MAIN IN
A23 V PULSE MAIN IN
A24 V MAIN IN
A25 U MAIN IN
B25 Y MAIN IN
CN1901
B5 AV LINK I/O
B4 MODE (PIN 8)
B9 CVBS IN (TEXT)
B8 AUDIO RESET
B11 TEXT BLANKING IN
B12 BLUE TEXT IN
J8901
VARIABLE OUT B13 GREEN TEXT IN
TO M1 BOARD
B14 RED TEXT IN
CN9101
B17 V SYNC TEXT
HEADPHONE L OUT
L
B18 H SYNC TEXT
HEADPHONE R OUT
R A12 STANDBY
A13 PROTECTION
A14 AC ON/OFF
B20 AUDIO MUTE
B3
AGC MONITOR
A4 RESPONSE LED
A5 SIRCS
A3
A2
CN1702
1
( )
TO H7 BOARD
J INTERFACE,
CN7902 3 (
A
AUDIO, CHROMA,
G COMB FILTER SIGNAL AND AUDIO AMP
37
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TU1350
(SUB-TUNER)
CN1601
4 SCL STANDBY
5
SDA
5
AC ON/OFF 9
AM2 14 TO D BOARD
OVER VOLTAGE 11 CN6101
IC1400
QSS2 15
BUFFER I/O EXPANDER
OVER CURRENT PROT 13
Q1326,
Q1327
BUFFER
CVBS2 1 OV PROT PORT 2 3
16 Q1328,
Q1329
AUDIO CENTER 1
9 AUDIO PROT
OC PROT AUDIO SURROUND 4
10
AUDIO LEFT
3
IC1126 AUDIO
PROTECTION
AUDIO AMPLIFIER Q1226,1227,
AUDIO RIGHT 1
LEFT 1626
CN1703
9 INPUT
HEADPHONE RIGHT OUT 1
OUTPUT 1
10 STBY/MUTE HEADPHONE LEFT OUT
3
SURROUND
13 INST+
AV3 CHROMA IN 5
CENTER
8 INC+ TO H7 BOARD
OUTS 1 AV3 LUMINANCE IN 7 CN7904
MUTE SW
6 MUTE
Q1208 AV3 LEFT OUT 9
OUTC 3
11 MUTE
AV3 RIGHT OUT 11
MUTE SW
Q1201
10 STBY/MUTE
IC1176
1 AUDIO AMPLIFIER CN1401
OUTPUT
IC1126 CENTER AND HORIZONTAL DEFL
INPUT A1
9 AUDIO AMPLIFIER SURROUND
RIGHT
VERTICAL DEFL A6
RED TEXT OUT A10
GREEN TEXT OUT B10
TEXT BLANKING OUT A11
CN1602 BLUE TEXT OUT B11
IC1401 9 EXTRA PARABOLA B1
2 MID HP 13 HORIZONTAL DRIVE A2
PORT 2 4
7 FLYBACK PULSE B2
TEXT HP
1
15 DYNAMIC FOCUS A3
EAST/WEST
5 B3
17 VERTICAL SAW+ A4 TO E BOARD
2 MID VP TO D BOARD
CN4101
CN6102
PORT 2 VERTICAL PROTECT
4 18 A5
TEXT VP
1
10 RGB AFC B5
19 VERTICAL SAW- A7
14 X-RAY A8
ABL
6 B8
VM MODULATION
16 B7
Y-100 OUT
B18
U-100 OUT
B19
DPIC SW A20
V-100 OUT B20
STANDBY
CN1200
Y-100 IN
+6.5V A2
4 4
IC1601 IC1604
+5V +9V U-100 IN A3
1 2 +10.5 1 +9VREG 2
+5VREG ANALOGUE
V-100 IN A4
DPIC SW
A5
V PULSE SUB OUT
A11
V SUB OUT
4 4 A12 TO B2 BOARD
U SUB OUT CN2100
IC1602 IC1605 A13
1 2 +5V +4.5V 1 2 +3.5V
+5VREG DIGITAL +3.5VREG Y SUB OUT
A14
Y MAIN OUT
A16
U MAIN OUT
A17
V MAIN OUT
A18
V PULSE MAIN OUT
A19
CN1700 H PULSE MAIN OUT
A20
5 SIRCS
TO H8 BOARD
CN7150
LED
4
)
38