Partⅱ:introduction On Main Components Functions Of Pt4216 - Changhong Electric PT4216 Service Manual

PartⅡ:Introduction on main components functions of PT4216
1、
PT4216 main components and function
NO. NAME
AV board assembly
1 UT921
2 UT920
Main board assembly
3 U901
4
U302，U303
5 U701
6 U306,U307,UA3
7 K201
8 K202
9 U801
10 U700
11 U201
12 U402
13 U305
14 U400
15 U5
16 U600
2、PDP TV PT4216 main components function introduction：
2.1 Main tuner(TAD5-C2IP1RW)
Pin number
1
2
3
4
5
6
7
8
9
10
11
2.2 Sub tuner(TMI4-C22P2RW):
Pin number
1
2
3
4
5
6
7
8
9
10
11
TYPE
TMI4-C22P2RW
TAD5-C2IP1RW
PIC16F505
24LC21A T/SN
24LC32A T/SN
FSAV330QSCX
K7262N
K9352N
AM29LV800DT-70EC
GM1501-BD
TDA15063H-N1B06557
SAA7115HL/V1
SM5302AS-G-ET
TDA8759HV/8/C1
TDA9178T/N1
MT46V2M32LG-4
Pin definition
AGC
UT
ADD
SCL
SDA
NC
+5V
NC
30V
NC
IF
Pin definition
AGC
NC
ADD
SCL
SDA
NC
+5V
NC
33V
NC
IF
Output sub-picture CVBS signal
Output sound and video IF signal
Standby control CPU
EEPROM
buffer
Select switch
SAW filter
SAW filter
Flash，save unit control program
Video processor
Video and audio decoder
Sub-channel video decoder
High definition signal filter
Video signal A/D converter
Video signal picture quality improvement
Frame buffer
Pin function description
Auto gain control
Not connect
Ground
IIC bus(clock)
IIC bus(data)
Not connect
Power
Not connect
Form 0~30V tune voltage
Not connect
Output IF TV signal
Pin function description
Auto gain control
Not connect
Ground
IIC bus(clock)
IIC bus(data)
Not connect
Power
Not connect
Form 0~33V tune voltage
Not connect
IF signal output(not connect)
7
Function