Sony ICF-DVD57TV Service Manual page 66

ICF-DVD57TV
MONITOR BOARD IC1401 µPD789477GC-SR7596B (SUB SYSTEM CONTROLLER)
Pin No. Pin Name
1, 2
NC
3 to 5 VLC2 to VLC0
6 to 9
COM0 to COM3
10 to 25
SEG0 to SEG15
26
TEST_MODE
27 to 29 NC
30 T-AGC
31
T-MUTE
32
T-SDATA
33
T-SCL
34 TV/AUX_MUTE
35
XRESET
36
NC
37 TFT OPEN
38 AVDD
39, 40
AN17, AN16
41
SCP-DET
42 to 45
NC
46
T-AFT
47 AVSS
48
NC
49
EEPROM-SDA
50
EEPROM-SCL
µCOM-LATCH
51
52
VSYNC
53
OSD-CS
54
OSD-DATA
55 OSD-CLK
µCOM-R DATA
56
µCOM-S DATA
57
µCOM-CLK
58
59
8V_SW
60 TFT-ON
61
ZOOM
62
JUST
63, 64
SIDE1, SIDE2
65 HSYNCLOCK
66 SDA
67
SCK
68
NC
69
IC
70 XT1
71
XT2
72
VDD
73
VSS
66
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I/O
-
Not used
- Not used
O
Not used
O
Not used
I
Monitor test mode setting terminal "H": test mode on
- Not used
O TV AGC on/off control signal output to the TV tuner unit
O
TV muting on/off control signal output to the TV tuner unit "H": muting on
O
Serial data output to the TV tuner unit
O
Serial data transfer clock signal output to the TV tuner unit
O TV/AUX audio muting on/off control signal output terminal "H": muting on
O
Reset signal output to the LCD controller
I
Not used
Monitor open/close detection signal input terminal
I
"L": monitor is opened, "H": monitor is closed
- Power supply terminal (+3.3V) (for A/D converter)
I
Not used
I
Over current detection signal input from the power control
I
Not used
I
TV AFT detection signal input from the TV tuner unit (A/D input)
- Ground terminal (for A/D converter)
-
Not used
I/O
Two-way data bus with the EEPROM
O
Serial data transfer clock signal output to the EEPROM
I Latch signal input from the main system controller
I
Vertical sync signal input from the RGB decoder
O
Chip select signal output to the OSD driver
O
Serial data output to the OSD driver
O Serial data transfer clock signal output to the OSD driver
I Serial data input from the main system controller
O
Serial data output to the main system controller
I
Serial data transfer clock signal input from the main system controller
-
8V power on/off control signal output terminal "H": power on
O Power on/off control signal output for back light unit "H": power on
O
Screen size selection signal output to the LCD controller "H": zoom screen
O
Screen size selection signal output to the LCD controller "H": wide screen
O
Screen size selection signal output to the LCD controller
I Horizontal sync detection signal input from the RGB decoder
O Serial data output to the RGB decoder
O
Serial data transfer clock signal output to the RGB decoder
I
Not used
I
Connected to the ground
I System clock input terminal Not used
O
System clock output terminal Not used
-
Power supply terminal (+3.3V)
-
Ground terminal
Description