Sharp LC-20AV7U Service Manual page 54

Pin
Signal Name
No.
22 SIF REF SIF Reference
23 STEREO REF Stereo Reference
24 SDA Serial Data
25 GND GND
26 NU Not Used
27 SCL Serial Clock
28 AGC DET Auto Gain Control Detect
R CH AUDIO
29 Right Channel Audio Output
OUT
L CH AUDIO
30 Left Channel Audio Output
OUT
31 NU Not Used
32 L-R REF L-R Reference
IC852 (Input Select)
Pin
Signal Name
No.
1 0Y Audio Signal 0 Input (R ch)
2 2Y Audio Signal 2 Input (R ch)
3 Y-COM Audio Signal Output (R ch)
4 3Y Audio Signal 3 Input (R ch)
5 1Y Audio Signal 1 Input (R ch)
6 INH Input Select Signal
7 VEE GND
8 GND GND
9 B Input Select B Signal
10 A Input Select A Signal
11 3X Audio Signal 3 Input (L ch)
12 0X Audio Signal 0 Input (L ch)
13 X-COM Audio Signal Output (L ch)
14 1X Audio Signal 1 Input (L ch)
15 2X Audio Signal 2 Input (L ch)
16 VDD VDD
IC901 (+1.2V Regulator)
Pin
Signal Name
No.
1 GND GND
2 V IN Input Voltage
3 V OUT Output Voltage
IC904 (+1.8V Regulator)
Pin
Signal Name
No.
1 V IN Input Voltage
Function
Function
Function
Function
12-4
Pin
Signal Name
No.
2 V OUT Output Voltage
3 GND GND
4 V ADJ Control Output Voltage
IC905 (+5V Regulator)
Pin
Signal Name
No.
1 V IN Input Voltage
2 V OUT Output Voltage
3 GND GND
Function
Function
A7144PIN