Haier 28T9G, Руководство по обслуживанию

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AN7522/7523
Function :
audio output
ICs functional description
Symbol PIN Function Symbol PIN Function
Vcc 1 Power supply GND 7 ground
Out 1 (+) 2 Ch 1 output (+) In 2 8 Ch 2 input
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 (+)
Note: AN7523 is pin 1 to 9, AN7522 is pin 1 to 12.
LA78040/78045
Function :
vertical output
Symbol PIN Function Symbol PIN Function
INV IN 1 Input V OUT 5 Vertical output
VCC1 2 Power VCC2 6 Output power supply
PUMP UP 3 Pump up power NON INV IN 7 Negative feedback
GND 4 Ground
TDA9859
Function :
Universal Sound processor
Symbol Pin Function Symbol Pin Function
AV1L 1 AV1 Audio Left input AV1R 32 AV1 Audio input Right
P1 2 Not used P2 31 Not used
MAINL 3 Main Audio Left input AV2R 30 AV2 Audio input Right
CSMO 4 Smoothing Capacitor CPS1 29 Pseudo stereo Cap. 1
MAINR 5 Main Audio Right input AV2L 28 AV2 Audio input Left
VP 6 Power Supply CPS2 27 Pseudo stereo Cap. 2
OUT R 7 Right Output OUT L 26 Left Output
GND 8 Ground MAD 25 Not used (GND)
LINOR 9 Line Output Right LINOL 24 Line Output Left
LINIR 10 Line Input Right LINIL 23 Line Input Left
CBR1 11 Bass Cap. Right 1 CBL1 22 Bass Cap. Left 1
CBR2 12 Bass Cap. Right 2 CBL2 21 Bass Cap. Left 2
Headphone R 13 Headphone-R output Headphone L 20 Headphone-L output
CTR 14 Treble Cap. Right CTL 19 Treble Cap. Left
MAINOR 15 Main Audio out Right MAINOL 18 Main Audio out Left
SCL 16 I2C Bus clock SDA 17 I2C Bus data
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