Sansui DTV2798A, Service Manual

Page: 4 / 21

A B C D E F G H
A B C D E F G H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC2401 R8A66953FP
DTV_ASIC
6
16
28
40
51
141
157
172
212
3
13
26
37
49
137
149
160
210
65
84
101
121
59
69
78
88
95
105
114
128
57
67
76
86
93
103
112
126
18
30
45
73
117
132
146
170
208
123
99
82
63
19
46
31
74
118
133
147
171
207
122
100
83
64
195
203
196
202
198
200
197
201
B2402
FCM1608KF-151T06
B2401
FCM1608KF-151T06
IC2408 BA00HC5WF
REGULATOR IC
1234
5
6
7
8
D2401
1SS355
C2442 0.1
B
C2431 0.1
B
C2424 0.1
B
C2441 0.1
B
C2439 0.1
B
C2432 0.1
B
C2427 0.1
B
C2420 0.1
B
C2443 0.1
B
C2436 0.1
B
C2401
10
C
C2403
10
C
C2425
10
C
C2413 0.1
B
C2412 0.1
B
C2426
10
C
C2402
10
C
C2499 0.1
B
C2510 0.1
B
C2507
10
C
C2508
10
C
C2513
10
C
C2512
10
C
C2511 0.1
B
C2404 0.1
B
C2406 0.1
B
C2409 0.1
B
C2414 0.1
B
C2417 0.1
B
C2407 0.1
B
C2410 0.1
B
C2415 0.1
B
C2418 0.1
B
C2421 0.1
B
C2428 0.1
B
C2433 0.1
B
C2440 0.1
B
C2422 0.1
B
C2429 0.1
B
C2434 0.1
B
C2405 0.1
B
C2408 0.1
B
C2411 0.1
B
C2416 0.1
B
C2419 0.1
B
C2423 0.1
B
C2430 0.1
B
C2435 0.1
B
C2437 0.1
B
C2444 0.1
B
C2438 0.1
B
C2445 0.1
B
R2505 3.9K
R2488
2.7K
+-1%
R2489
1K +-1%
R2487
1K
R2490
10
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
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
VDD33
VDD25
VDD5
1V5_D VDD10
VDD25
VDD10
VDD33
VDD5
1V5_D VDD25
D_GND
VDD10
VDD33
VDD10
D_GND
FROM AV OUT
POWER2 SCHEMATIC DIAGRAM
J-16 J-15
PCBDH0
CEF284
(DIGITAL PCB)
VCCQ33
VCCQ33
VCCQ33
VCCQ33
VCCQ33
VCCQ33
VCCQ33
VCCQ33
VCCQ33
VSSQ33
VSSQ33
VSSQ33
VSSQ33
VSSQ33
VSSQ33
VSSQ33
VSSQ33
VSSQ33
VCC25P
VCC25P
VCC25P
VCC25P
VCCQ25
VCCQ25
VCCQ25
VCCQ25
VCCQ25
VCCQ25
VCCQ25
VCCQ25
VSSQ25
VSSQ25
VSSQ25
VSSQ25
VSSQ25
VSSQ25
VSSQ25
VSSQ25
VDD10
VDD10
VDD10
VDD10
VDD10
VDD10
VDD10
VDD10
VDD10
VDD10P
VDD10P
VDD10P
VDD10P
VSS10
VSS10
VSS10
VSS10
VSS10
VSS10
VSS10
VSS10
VSS10
VSS10P
VSS10P
VSS10P
VSS10P
VCCPLL33
VCCPLL33
VSSPLL33
VSSPLL33
VCCPLL10
VCCPLL10
VSSPLL10
VSSPLL10
(1/5 POWER)
V0
ADJ
VCC
EN
GND
GND
PVCC
PVCC
0
0
1.93
1.11
0.8
3.32
3.32
1.97