Haier HTX21S31 Service Manual page 24

).
2 N101 LA76812
Pin
function
No.
1 Audio output
2 FM output
3 IF AGC filter
4 RF AGC
5 PIF AMP input
6 PIF AMP input
7 IF ground
8 IF VVcc
9 FM filter
10 AFT output
11 Bus data
12 Bus clock
13 ABL
14 R-input
15 G-input
16 B-input
17 Fast blanking input
18 RGB Vcc
19 R-output
20 G-output
21 B-output
22 H-synchronize output
23 Vertical output
24 Vertical ramp ALC filter
25 Power
26 AFC filter
27 Horizontal output
Pin
voltage V
No.
2.23 28
2.23 29
2.22 30
2.59 31
1.30 32
2.83 33
2.83 34
0 35
4.94 36
1.90 37
2.77 38
4.85 39
4.76 40
3.92 41
0.14 42
0.15 43
0.08 44
7.94 45
2.21 46
2.36 47
2.28 48
0 49
2.47 50
2.65 51
5.10 52
2.49 53
0.63 54
23
Circuit Explanation
function
FBT input
VCO IREF
Clock output
VCC
OSD gain control
Gnd
X-ray pretect
ACC killer filter
APC2 filter
FSCout
XTAL
APC1 filter
Selected video output
Video chroma deflection
Ext video input
Power
Int . video input
Black stretch filter
Video input
APC filter
VCO coil
VCO coil
FLL filter
Ext audio input
SIF output
APC filter
SIF input
voltage
V
1.06
1.69
0.002
0.002
3.05
0
0.06
0.39
3.49
0.54
2.87
3.2
2.43
0
2.55
5
2.77
2.6
2.12
3.5
4.3
4.3
2.24
2.12
1.95
2.38
3.14