Diagrams; Block Diagram - Sony KP-48PS2 Service Manual

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM (1)

J
(AV SELECT SW,VIDEO PROCESS)
CN8900
BLUE IN 7
GREEN IN 11
RED IN 15
BLANKING 16
AV1
AV SIGNAL SELECT SW
1/
VIDEO IN 20 60 AV1-V
Q8811
VIDEO OUT 19
BUFF
RIGHT IN 2 36 AV1-R
29 AV1-L
LEFT IN 6
RIGHT OUT 1 32 RTV
LEFT OUT 3 25 LTV
18 MODE1
MODE 8
CN8901
15 52 AV2-C
C IN
VIDEO/Y IN 20 58 AV2-V
Q8452
VIDEO OUT 19 9 AV2-OUT
BUFF
AV2
2/ 2
RIGHT IN 2 35 AV2-R
LEFT IN 6 28 AV2-L
40 AV2-R OUT
RIGHT OUT 1
LEFT OUT 3 41 AV2-L OUT
19 MODE2
MODE 8
AV LINK 10
CN8902
C IN 15 49 AV4-C
54 AV4-V
VIDEO/Y IN 20
RIGHT IN 2 33 AV4-R
26 AV4-L
LEFT IN 6
MODE 8 20 MODE3
Q8904
38 MAIN ROUT
AV3 RIGHT OUT 1
BUFF
3/ 3
Q8903
LEFT OUT 3 39 MAIN LOUT
BUFF
Q8901
VIDEO OUT 19
BUFF
AV4
4
J3301
S VIDEO
s
CN3301
3 C
1 Y
VIDEO
5 V
7 L
9 R
L
(MONO)
R
H3
(AV INPUT)
MAIN COLOR DECODER
25 B1
26 G1
27 R1
15 YS3
IC8451
COMB
45
SYS
SFC
46
OUT
MAIN
CVBS
Y OUT 11 1
/Y1
Q8902 Q8501
CVBS
MAIN 13 48 C1 3
OUT
C OUT BUFF BUFF
SUBTU-L 30
SUBTU-R 37
Q8451
VIDEO OUT 43
BUFF
SUB Y OUT 45
SUB C OUT 47
LD1 8
SUB TV 62
LD0 5
TV 64
HP L OUT
HP LOUT3 23
HP R OUT
HP ROUT3 24
R
AV3-R 34
L
AV3-L 27
Y/V
AV3-V 56
C
AV3-C 51
Q8814,8815
AMP
CN8903
C
C 3 IC8304
Y/V
+5V REG
Y 1
V 5
+6.5V I
L
L 7
R
R 9
IC8301
Cr OUT 23
IC8500
Cb OUT 22
DIGITAL COMB FILTER
23 PNR
Q8502,8503
26 NTPL1 LUMINANCE
9 5 COMB Y
OUT BUFF
37 CLOCK IN
Y OUT 21
Q8302,8504
CHROMA COMB C/
2 A/D IN 7 7
FORCED S
OUT BUFF
38 Xtal
X8301
16.2MHz
SCP 10
13 SCL
14 SDA
HS 9
VS 4
SUB COLOR
DECODER
X8401
16.2MHz
Q8801,8804,8805,8807
AMP,BUFF,DL SW
Q8809,8810,8812,8813
AMP,BUFF,DL SW
IC8305
+5V REG
O +DIG5V +6.5V I O +ANA5V
– 30 –
IC8601
PICTURE BOOSTER
Q8620,8621,8623
9 -VIN -V OUT 16
AMP,BUFF
Q8612,8614,8615
8 -UIN -U OUT 17
AMP,BUFF
IC8602
NOISE DET
Y OUT 19
Q8602,8607
3 YIN Y OUT 7 6 YIN SDA 14
BUFF
SCL 11
Q8639,8640
1 CVIN
BUFF
SW
+ANA 5V
2
Q8636-8638
INV
IC8401
1 CVBS/Y1 SCL 13
48 C1 SDA 14
V OUT 23
Q8626,8627,8633,8634
U OUT 22
AMP,BUFF
38 Xtal
Q8628-8631
Y OUT 21
AMP,BUFF
+ANA 5V
HS 9
2
+ANA 5V
1
VS 4
IC8303(2/2)
SYNC BUFF
IC8452
HP AMP
HP R OUT
7 RIN(+) ROUT 1
HP L OUT
Q8311
6 LIN(+) LOUT 3
MUTE SW
Q8905
MUTE SW
Q8906
MUTE SW
KP-48PS2/61PS2
RM-903
CN8101
Q8604,8609
A24 V MAIN IN
AMP,BUFF
Q8601,8603
A25 U MAIN IN
AMP,BUFF
Q8605,8610,8611 Q8606
B25 Y MAIN IN
AMP,BUFF BUFF
Q8616
B3 TRAP
TRAP SW
IC8302(1/2)
6
3
A22 HP MAIN IN
5
2
+ANA 5V 7
1 A23 VP MAIN IN
IC8302(1/2)
+9V A16 +9V IN
+6.5V A17 +6.5V
A6 SDA
B6 SCL
A
TO BLOCK
DIAGRAM(2)
A BOARD
CN1801
Q8624,8625,8632,8635
A20 V SUB IN
AMP,BUFF
B20 U SUB IN
B21 Y SUB IN
6
3
5 A19 HP SUB IN
IC8303(1/2)
SYNC BUFF
7
B19 VP SUB IN
A2 CVBS2 OUT
A12 CVBS IN
A1 CVBS1 OUT
A11 SUB AUDIO
A3 HP MUTE
AV LINK
A4 AV LINK
A8 SW2(NC)
R-TV
A9 R-TV
L-TV
A10 L-TV
MAIN R
B9 MAIN R OUT
MAIN L
B10 MAIN L OUT
Q8309
B11 HP R OUT
MUTE SW
B12 HP L OUT
B2 CENTER(-)
B1 CENTER(+)
TB8101
+
CENTER SP IN
C
-
J8901
R
VARIABLE OUT
L