Diagrams; Block Diagram - Audio/Video Section - Sony Glasstron PLM-A35 Service Manual

4-1. BLOCK DIAGRAM – AUDIO/VIDEO Section –
(ON: PLUG IN)
1
Y
3
C
4
2
J401
S VIDEO IN
3 1
COMB FILTER
(Y/C SEPARATOR)
FL401
4 6
J402
A/V IN
-1
LINE AMP
Q202
LINE AMP
Q201
-2
RV201
VOL
S201
AVLS
05
SECTION 4

DIAGRAMS

VIDEO SELECT SWITCH,
VIDEO AMP
IC401
2 SW1 SW2 4
CLAMP
OUT 7
Q402
1 IN1
BUFFER
IN3 5
Q408
3 IN2
VIDEO SELECT SWITCH,
VIDEO AMP
IC402
SW1
2
SW2 4
1 IN1
OUT
7
3 IN2
HEADPHONE
AMP
IC201
OUT 2
14 IN 2 2
(HEADPHONE)
L
VREF
3
IN 1
13
OUT 1 4
(HEADPHONE)
R
MUTE SW 11
5 MIX OUT
ON 6 AVC IN
OFF
4-1
LEVEL
SYNC
BUFFER SHIFT
IC407 IC405 (1/4)
LEVEL
SHIFT
IC405 (2/4)
SYNC SIGNAL GENERATOR
IC404
MUTING
RST 1
Q401, 413
LEVEL LEVEL
SHIFT 3 COMP VD 2 SHIFT
IC405 (4/4) IC405 (3/4)
XT XT
6 7
X401
3.58MHz
XTL301
10MHz
X301
32.768kHz
17 CV/S
18 EXT VIDEO
32 PBV
40 H SYNC
SYSTEM
CONTROLLER
IC301
EEPROM
IC302
VOW 0
41
CS EPROM 91 1 CS
DATA TO MASTER 75 4 DO
2
SCK
3 DI
WE EEPROM 92 6 RST
VIDEO MUTE
11
CS LCD 78
V SYNC
39
ATT
MODECON SCK
77
Q302, 830
ATT
DATA TO SLAVE 76
Q301, 831
10 AUDIO MUTE
4 X1
BUFFER
CSDA 93
Q305
X0
3
99 CL1
CL0 • SIGNAL PATH
100
4-2
PLM-A35
Y
A
(Page 4-3)
C
B
(Page 4-3)
RG CS
C
(Page 4-3)
CLK
D
(Page 4-3)
DATA
E
(Page 4-3)
DACS
F
(Page 4-3)
: AUDIO
: VIDEO