Changhong Electric PF2939, Service Manual, Page: 7 / 47

SERVICE MANUAL
SYSTEM BLOCK DIAGRAMS
５
Structure Block Diagram
Fig 1. Structure Block Diagram for CH-16CD Chassis
L in
R in
UOC (27)
IF Pre-Amplifier
+ SAWF
Tuner
A101
EEPROM
(N202)
I
2
C
1 ００ ~2 ５ 0V
50/60Hz
Power Supply Circuit
STR-G8656 (IC801) And
BCK-24217L (T803)
5V-1
15V-1
3.3V
15V-2
145V
8V
Circuit for Buttons
On The TV
Remote Sensor
HS0038
Remote
control
200V
Monitor Out
V.OUT
TDA8350Q (N401)
UOC
ＯＭ８３７３ＰＳ
(N201)
CRT Drive
H.Drive
Q501, T501
H.OUT
Q502
FBT
T502
Y/C TV-V
I
2
C
SIF
Audio Amplifier
TDA8944J (N361)
AV Switch
TA1218/1219
(N901)
Audio Processor
TA1343N (N301)
C
Y
I
2
C
AV Terminals in
35
42 43
40
23
24
53
52
51
6
7
33
21 22
64
HV FV SV
45V
16V
5V-2
9V