Test Point Waveform; All Ics Voltages - Haier DTA-1486 Service Manual

Note
Pin
62
63
2. N902 24C08/PCF8598
PIN
1
2
3
4
5
6
7
8
3. N601: Sound power amplify (AN7522N)
Symbol
Vcc
Out 1 (+)
GND(out 1)
Out 1 (-)
Standby
In 1
4. N301: Vertical output (TDA8357A)
Symbol
INV IN
INV IN
Vcc
V OUT
GND
5. U101：Tuner
PIN Function
1 AGC
2 vacant
3 Gnd
4 SCL
5 SDA
6 +5V
6. Test point Waveforms
2.6Vpp
H
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TV
1
1
Function
GND
GND
Upper resistance
GND
SDA data wire
SCL clock wire
GND
+5V Power
PIN Function
1 Power supply
2 Ch 1 output (+)
3 Ch 1Ground
4 Ch 1 output (-)
5 Mute input
6 Ch 1 input
PIN Function
1 Input
2 Input
3 Pump up power
4 Vertical output
5 Ground
PIN Function
7 +5V
8 vacant
9 Vt 33V
10 Gnd
11 IF Out
3.8Vpp
1.2Vpp
H
SVHS
0
1
Symbol PIN
GND 7
In 2 8
VOL 9
Out 2 (-) 10
GND(out 2) 11
Out 2 (+) 12
Symbol PIN
PUMP UP 6
V OUT 7
V PRO 8
V FEEDBACK 9
2.5Vpp
10
H
H
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AV1 AV2
0 1
0 0
Function
ground
Ch 2 input
Volume Control
Ch 2 output (-)
Ch 2 Ground
Ch 2 output (+)
Function
Pump up power
Vertical output
Vertical protection
Vertical feedback
2.5Vpp
H