Service manual

ABC D E F GH
ABC D E F GH
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC2275
NJM4580V(TE1)
OPE AMP
1234
5678
Vout
B+
GND
OS2251
ROM-V338TAO
1
2
3
G R
D2251
LTL-1BEFJ-002A
STANDBY/POWER
Q2251
HPI6FGR4F2
PIN PHOTO DIODE
R
L
J2275
MSJ-035-12A_PC
IR PASS THROUGH
1
2
3
B2271
BLM18BB600SN1
L2275
47uH
W889
W917
W919
W848
C2282
4716V YK
C2255
1025V KA
C2252
1006.3V KA
C2276
4716V YK
C2279
150V KA
C2283
100P CH
C2280
0.01
B
C2256
1B
C2278
220P
B
C2277
0.1
B
C2281
0.01 B
C2275
0.01 B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
R2287
1
R2285
2.7K
R2284
220
R2283
2.7K
R2252
47
1/4W
R2259
1K
R2253
270
R2254
220K
R2255
12K
R2257
390K
R2256
680K
R2281
10K
R2282
1.2K
R2279
150
R2288
22
R2289
56
R2286
330
R2280
220K
R2278
10K
R2277
220K
R2276
12K
R2275
12K
Q2275
KTC3875S_Y_RTK
SW
Q2252
KTC3875S_Y_RTK
BUFFER
D2252
1SS133
D2275 1SS355
Q2276
2SA2048
SW
Q2277
KTA1504S_Y_RTK
SW
CP2251
A2001WR2-6P
1
2
3
4
5
6
IR-THROUGH
AT+5V
GND
H-16
H-15
CMF083
PCBD20
or BA10358F-E2
5
5
0
5
0.3
0
IR PASS SCHEMATIC DIAGRAM
5.2
2.8
3.5
CEF179
PCBDA0
IR-THROUGH
REMOCON IN
GND
AT+5V
STANDBY LED
(REMOCON PCB)
(AV PCB)
FROM/TO AV SWITCH2
(CP4202_1)
+ -
-
+VS
-VS
+
0000.1
0.2 0.2 0.3 5.2
FROM/TO AV SWITCH2
FROM/TO POWER
P.ON LED
0.5
5
0.4
5
5