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RinS2
15
CinS2
16
I/01
17
I/02
18
GND
19
Scl
20
SDA
21
Sync out
22
Address
23
VinV2
24
LinTV2
25
Yin
26
RinV2
27
Vin
28
Vcc
29
Cout
30
Rout1
31
Yout
32
Lout1
33
Vout1
34
RoutTV
35
LoutTV
36
Table 8 Functions and Service Data of TC90A49P (N902)'s Pins
Pin
Functions Description
No.
ADC and DAC analog power supply.
1
ADC bias voltage. Stabilize by attaching a 0.01µF
2
capacitor.
ADC input range D upper limit voltage. Stabilize
3
by attaching a 0.01µF capacitor.
ADC input. Inputs 1.0 Vp-p video signal. Sync tip
4
clamp is performed.
ADC input range D lower limit voltage. Stabilize by
5
attaching a 0.01µF capacitor.
ADC and DAC logic power supply.
6
Logic and internal DRAM GND (digital).
7
Internal DRAM power supply
8
2
I
C BUS SDA
9
2
I
C BUS SCL
10
Shipment test mode switch or I2C bus setting
11
reset pin.
Y signal comb function ON / OFF switch.
12
SERVICE MANUAL
5.11
5.12
7.3
0.02
0.00
3.5
3.77
0.02
0.00
5.11
5.1
5.1
5.1
5.09
5.86
3.46
3.95
3.48
3.96
4.06
3.95
3.95
Reference
Voltage (V)
4.98
1.41
3.15
2.14
1.84
4.98
0
4.98
4.12
4.25
0
0
27
7.62
7.66
7.98
7.9
0.006.98
6.98
6.98
7.88
0.00
7.53
7.64
7.76
7.64
7.76
5.45
0.2
7.43
0.2
7.43
0.2
7.39
7.46
Digital Multimeter
Positive Resistance
Negative Resistance
(20KΩ)
0.55
∞
0.64
∞
0.497
0.55
0
0.55
6.39
6.4
0
0
5.86
5.64
5.43
5.44
0.00
4.47
4.46
5.45
0.00
5.81
5.82
5.82
5.82
5.6
4.1
0.2
5.46
0.2
5.46
0.2
5.48
5.48
(20KΩ)
0.54
∞
0.63
∞
0.49
0.55
0
0.55
6.44
6.45
0
0
(Continued)
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