Sony PLM-A55E, Service Manual

Page: 41 / 70

PLM-A55E
– 41 –
– 42 –
4-2. BLOCK DIAGRAM – MAIN Section –
05
•
Signal path
: VIDEO (Y/CHROMA)
: VIDEO (CHROMA)
: VIDEO (color difference signal)
: AUDIO
: VIDEO (Y)
19
8
9
CLAMP
Q101, 102
VIDEO
MUTE
Q103
V SYNC BUFFER
Q104
BUFFER
Q135
AMP
Q134
VIDEO
BUFFER
Q150
VIDEO
BUFFER
Q151
CHROMA
BUFFER
Q161
Y
BUFFER
Q156
260msec
DELAY LINE
FL251
SERVICE LANC
INTERFACE
Q902
CHROMA
BUFFER
Q164
Y
BUFFER
Q159
R-Y
BUFFER
Q255
R-Y
ATT
Q256
R-Y
BUFFER
Q257
CHROMA
BUFFER
Q162
Y
BUFFER
Q157
ATT
Q903
Y
BUFFER
Q261
Y
BUFFER
Q264
AMP
Q152, 153
AMP
Q163
AMP
Q262, 263
VIDEO
BUFFER
Q154
CLAMP
Q130, 131
5.5MHz
L.P.F.
FL100
5.5MHz
L.P.F.
FL101
1.5MHz
L.P.F.
FL753
B-Y
BUFFER
Q252
VIDEO
BUFFER
Q201
FILTER
AMP
Q202 – 204
B-Y
ATT
Q253
B-Y
BUFFER
Q254
1.5MHz
L.P.F.
FL252
5.5MHz
L.P.F.
FL102
SUB CARRIER
BUFFER
Q205
XOUT
XIN
5
6
LOUT
LIN
CLK
DATA CS
CS
CS EEPROM
WE EEPROM
MODECON SCK
CS CG
SYSTEM RESET
SDE
PCL
VBSI
17 VBSO
18 VCNT
24
18
12
29
ATT
Q904
31
3 2
7
5 19
20
AFDO
CHARACTER GENERATOR
FREQUENCY
RV952
22 AFDI
14
1 3 2
CGLVL
RS1
VIDEO MUTE
DATA TO MASTER
DATA TO SLAVE
CG SDE
PBV
CS DA
CLK
DI
2
16
17
2
3
1
4
6
91 92 75
96 95
77 76 78 73 23 16 93
88 82 35 36 10 12 7 8 25 24 27 21
11
PASSWORD RESET
COLOR
HUE
5
4
FREERUN
SCK
EEPROM
IC901
SYSTEM CONTROLLER
IC903
D/A CONVERTER
IC202
DI
DO
AU EVR
3
7
DO
LD
VOL DS A/D
POWER SW
AVLS
POWER LED
CHARGE LED
BB2 BB1
SURROUND
AU MUTE
DIAL 2 DIAL 1
MENU/EXEC
AU EVR
HP R
HP L
HP RET
HP R
HP L
HP RET
SCK
HP RCS EVR
EVR DO
LANC DC
LANC SIG LANC SIG
POWER SW
MENU/EXEC A/D DIAL A PHASE DIAL B PHASE AUDIO MUTE SURROUND BB1 ON BB2 ON AVLS ON POWER SW LANC OUT LANC IN X1 X0 CL0 CL1
14
15
13 7
VSYO
OSC
COIL
L.P.F. L.P.F.
BUFFER
Q602
BUFFER
Q601
FILTER
ADC
VCO
DAC
DAC
CONTROL
LOGIC
CONTROL
LOGIC
CLOCK
GENERATOR
APCG-1
PROCESS
L104
X101
17.734475MHz
CLK IN
4.43MHz
VCLPTC
SYNCTC
YCLPTC
DLABIAS
ACKTC
COUT
G/Y
R-Y
G-Y
B-Y
DLAIN
R/R-Y
IN
OUT CLK
ACCTC
CADJ
BF
SYNC
2
1
13
11
10
9
1
4 8
12
14
15
16
30
31
CIN
32
20
24
21 17
5
8
IN2 OUT2
VOLTAGE
CONTROL AMP
IC204
CCD DELAY LINE
IC203
CON2
7 5
6
SYNC
SEPARATOR
PULSE
GENERATOR
SIGNAL
AMP
ACK
DET
CHROMA
AMP
PAL ID
ACC
DET
BURST
GATE
DL
AMP
ADD/SUB
SWITCH
DEM
VSL
YCLP
ACK BLK
FF
INV ACC
PG HUE
APC VXO
SW
SW
MIX
MIX
VCLP SHP
VIDEO IN
HUEADJ APCTC VXO2 VXO1
SCOUT
B/B-Y
0
°
90
°
YCLVL
HAFC
V IN
SC OUT
FOR CHECK
4 9 6 2 10
20 10 13 12 18 19 17 16 15 14 8
21 23 24 22 9
8 7
6
4 5
6
2
1
4
3 7 1 2
FREERUN ON
3 2
VIN
BYPASS
C OUT
Y OUT
PC OUT CLK IN BIAS OSCV
RBT
RTP
A/D, D/A CONVERTER
(FOR Y/C SEPARATOR)
IC103
VIDEO RGB DECODER
IC201
CHARACTER
GENERATOR
IC101
AU R AU L
TO
AUDIO
BLOCK
TO AUDIO BLOCK
CN901
(1/2)
CN102
(1/2) CN902
CN901
(1/2)
CN102
(1/2)
CN103
FOR CHECK
BURST CLEANING 12
CHARGE LED POWER LED
TO AUDIO BLOCK
TO
DISPLAY
BLOCK
4 3
XTL901
10MHz
X901
32.768kHz
100 99
9
S901
(PASSWORD RESET)
FOR CHECK
J601
2
J101
A/V IN
YM-11P BOARD
X201
4.433619MHz
3 4
R-Y
CN101
B-Y
Y
DS VOL