Toshiba 21E88 Service Manual page 59

48 ANA-IN1-
49 ANA-IN2+
50 TESTEN
51 XTAL-2N
52 XTAL-OUT
Table 16 Functions and Service Data of TDA9808T Pins
Pin No.
1 PIF signal input 1
2 PIF signal input 2
3 RFAGC start-control level adjust
4 PLL APC filter
5 Audio AGC filter
6 Audio output (NTSC 4.5MHz)
7 Filter
8 1/2VCC comparison voltage bias
9 Video output
10 Second SIF signal output
11 Second SIF signal input
12 RFAGC output
13 AGC signal output
14 External connection for VCO oscillating LC network 2.76
15 External connection for VCO oscillating LC network 2.76
16 Ground
17 AGC filter
18 Supply voltage input terminal
19 SIF signal input
20 SIF signal input?
SERVICE MANUAL
1.53
0.09
0.01
2.35
2.36Hs
Function Description
7.3
7.3
0.001
6.8
6.8
Digital Multimeter
Reference
Voltage (V) Resistance (20KΩ)
3.23 7.2
3.23 7.2
0.99 6.7
2.53 7.9
3.29 7.8
2.34 7.2
1.79 7.9
0 ∞
2.18 7.6
2.03 7.7
2.81 5.2
0.04
3.05 7.9
7
7
0 0.001
3.13 7.9
8 2.1
3.2 2.1
3.2 7
57
5.26
5.27
0.00
5.27
5.3
Positive Negative
Resistance(20KΩ)
6.03
5.99
5.85
6.3
6.17
5.86
6.29
∞
6.09
6.17
4.99
6.1
6.2
6
6
0.00
6.11
2.7
6.27
6.27