Main CPU Port Functions (IC801)
-6-
Pin No.
Port Name
Function
131
A0
N_Reset Output (Active=H)
133
A1
Power error-1 input
10
A2
PLL Lock (Not used)
11
A3
LCD Brightness Output
135
A4
LED / For software flash
136
A5
Audio Mute / For software flash
137
A6
Control of Inverter (Active=L)
138
A7
For writing / FAN Control Check (For manufacturing process) (Active=l)
146
B0
Power ON/OFF Switch Input (AD Input)
145
B1
Key Board Input (AD Input)
144
B2
8-pin of Scart-1 Input (AD Input) -Not used-
143
B3
8-pin of Scart-2 Input (AD Input)
142
B4
8-pin of Scart-3 Input (AD Input) -Not used-
141
B5
AGC Input
130
C0
SDA for ADE3800 (IC4001)
129
C1
SCL for ADE3800 (IC4001)
128
C2
AV Switch-C Output
127
C3
Power-3 Output
4
C4
SDA for EEPROM (IC802)
3
C5
SCL for EEPROM (IC802)
2
C6
SDA for device other than EEPROM
1
C7
SCL for device other than EEPROM
5
D0
AV Switch-A Output
6
D1
LCD ON (Back-Light ON/OFF) Output
7
D2
50/60Hz Switch (Switching PAL/NTSC) Output
8
D3
AV Switch-B Output (Active=H)
132
D4
RC Input (Active=L)
147
D5
Power Switch-1 output
9
D6
Power error-2 Input
134
D7
Power Info. Input (Input of the power supply condition)