Haier HTAF21C, Service Manual

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GND(out 1) 3 Ch 1Ground VOL 9 Volume Control
Out 1 (-) 4 Ch 1 output (-) Out 2 (-) 10 Ch 2 output (-)
Standby 5 Mute input GND(out 2) 11 Ch 2 Ground
In 1 6 Ch 1 input Out 2 (+) 12 Ch 2 output (+)
4. N301: Vertical output (TDA8357A)
Symbol PIN Function Symbol PIN Function
INV IN 1 Input PUMP UP 6 Pump up power
INV IN 2 Input V OUT 7 Vertical output
Vcc 3 Pump up power V PRO 8 Vertical protection
V OUT 4 Vertical output V FEEDBACK 9 Vertical feedback
GND 5 Ground
5. U101
：
Tuner
PIN Function PIN Function
1 AGC 7 +5V
2 vacant 8 vacant
3 Gnd 9 Vt 33V
4 SCL 10 Gnd
5 SDA 11 IF Out
6 +5V
4. ADJUSTMENT
Specific operation: use remote controller
Press “MUTE” Æ “CALL” Æ “-\--“ Æ “CALL” Æ “MUTE” buttons in sequence to enter into factory mode.
Press [] / [Program-] to select items and press [] / [VOLUME-] key, to make data
adjustment of corresponding factory menus.
Press “EXIT” key to exit factory mode.
Focus adjustment
1. Receive a crosshatch signal.
2. While watching the screen, adjust the FOCUS VR on the FBT to make the vertical and horizontal
lines as fine and sharp as possible.
Geometrical adjustment
Receive PAL standard complete pattern signal.
Adjustment steps
：
a) Adjust VSL, to the centre horizontal line just appears from half bottom shadow.
b) Adjust VAM, to get 92% of vertical picture contents would be displayed on CRT.
c) Adjust VSH, the centre horizontal line corresponds to CRT vertical centre.
d) Adjust SCL, to the linearity of P card field is in proper condition.
e) Adjust
HSH, to get the picture horizontal centre correspond to CRT horizontal centre.
Receive NTSC signal and repeat above adjustment.