Sony PLM-A55E, Руководство по обслуживанию

Страница: 40 / 70

– 40 –
Pin No. Pin Name I/O Function
39 to 44 LED016 to LED021 O LED drive signal output terminal Not used (open)
45
RMC SEL I
Not used (fixed at “L”)
46
RMC SEL —
Not used (open)
47 VCC — Power supply terminal (+5V)
48 to 55
SEG15 to SEG08 O
LCD segment drive signal output terminal Not used (open)
56
VSS —
Ground terminal
57 to 64 SEG07 to SEG00 O LCD segment drive signal output terminal Not used (open)
65 to 68
V3 to V0 I
Bias voltage input for the LCD drive Not used
69 to 72
COM0 to COM3 O
LCD common drive signal output terminal Not used (open)
73
CG SDE I
Input of check signal whether vertical sync signal is present or not from character generator
(IC101) “L”: vertical sync signal is present
74
DD CHARGE O
Charge mode on/off control signal output to the DC/DC converter (IC301)
75
DATA TO MASTER I
Serial data input from the EEPROM (IC901)
76 DATA TO SLAVE
O
Serial data output to the character generator (IC101), D/A converter (IC202) and EEPROM
(IC901)
77
MODECON SCK O
Serial data transfer clock signal output to the character generator (IC101), D/A converter
(IC202, 402) and EEPROM (IC901)
78
CS CG O
Chip select signal output to the character generator (IC101)
79
DD MAIN O
Main power supply control signal output to the DC/DC converter (IC301)
80
SHUTTER O
Rectangle waveform (125 Hz) output for the shutter Not used (open)
81
AVSS —
Ground terminal (for A/D input)
82 MENU/EXEC A/D I S702 and S703 keys input on the SA-52P board
83
BATT SIG I
Not used
84
CHARGE A/D IN I
Input of battery voltage detection in charge mode (A/D input)
85 BATT SENCE I Input of battery capacity detection when rechargeable battery is used (A/D input)
86 DC IN A/D I
Input of voltage detection when DC adapter is used (A/D input)
87 VOL I/F A/D —
Not used (open)
88 VOL DS A/D I Volume control input terminal (A/D input)
89
P97/AN07 —
Not used (open)
90
AVCC —
Power supply terminal (+5V) (for A/D input)
91 CS EEPROM O Chip select signal output to the EEPROM (IC902)
92
WE EEPROM O
Data write enable signal output to the EEPROM (IC902)
93
CS DA O
Chip select signal output to the D/A converter (IC202, 402)
94 PA3/AN11 — Not used (open)
95
LANC IN I
LANC serial data input terminal (for test)
96
LANC OUT O
LANC serial data output terminal (for test)
97 BUZZER O Buzzer sound output terminal Not used (open)
98
BACK UP VCC —
Power supply terminal (+5V)
99
CL1 O
Sub system clock output terminal (32.768 kHz)
100 CL0 I Sub system clock input terminal (32.768 kHz)