SERVICE MANUAL
14
3. CHASSIS DESCRIPTION
1).
General Description
EX-1A4 chassis series are applied in 14C13/14C27 respectively which uses mainly Philips’
advanced UOC-ultimate chip TDA935X/6X/8X and I
2
C-bus controlled IC. With combination of
microcontroller and small signal processor, the TDA935X/6X/8X series feature high-integration,
high-performance-to-price ratio and high-reliability and advanced functions with fewer external
components, which provide much convenience for manufacturing and technical service.
2).
The EX-1A4 chassis series mainly use the following ICs and assemblies.
Table 1 Key ICs and Assemblies
Serial
No.
Position Type
Function
Description
1 N100 TDA935X/6X/8X
(CH05T0102)
Microcontroller and small signal processor(UOC)
2 N200 AT24C08
EEPROM
3
N401
TDA8356/N6
Vertical scan output stage circuit
4
N600B
TDA7056B
Sound power amplifier
5
N861
STR-G5653/F6654
Power supply circuit
6 N402 HEF4053
Analog
switch
7 A100
TDQ-5B6M
Tuner