Ic401 Display Control, Fl Driver (Μpd780204Gf-020-3Ba) - Sony SA-VA100 Service Manual

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• IC401 Display Control, FL Driver (µPD780204GF-020-3BA)
Pin No. Pin Name
1 VDD
2 LED7-O
3 LED6-O
4 LED-OPE
5 LED-RDY
6 LINE-MUTE
7 CE-FUNC
8 VA-CONT-OUT
9 VA-CONT-IN
10 RESET
11 X2
12 X1
13 IC
14 XT2
15 XT1
16 VDD
17 CLK-ST/FUNC
18 DATA-ST/FUNC
19 ST-DATA-IN
20 NC
TE
L 13942296513
21 ST-CE
22 STEREO
23 TUNED
24 ST-MUTE
25 AVSS
26 V1/V2
MON-ON/OFF
27
TC-POWER
28
29 AUTO-OFF
30
DEST
30 to 33
KEY-1 to KEY-3
• Abbreviation
FL : Fluorescent indicator tube
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I/O
+5V power supply
—
O
O
LED drive output ("H": active)
O
O
O Line mute ON/OFF output "L": ON
O Chip enable output to video selector
O Remote control signal output (inside)
I Remote control signal input (inside)
I Reset input "L": reset
O
Clock (5MHz)
I
—
O Not used
I
— +5V power supply
O Serial clock output to tuner block and video selector
O Serial data output to tuner block and video selector
I Serial data input from tuner block
I Not used
O Chip eneble output to tuner block
Stereo signal input from tuner block "L": stereo
I
Tuned signal input from tuner block "L": tuned
I
O Tuner mute ON/OFF output "H": ON
— Ground (A/D)
Video selector switching output
O
O
O Power off output to deck block ("H" Normal, "L": Black-out)
VIDEO 1 and VIDEO 2 audio input signal detection input
I
(When no input more than 3 minutes)
Model and destination detect input
I
Key input (A/D)
I
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2 9
8
Function
Q Q
3 6 7 1 3 1 5
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— 97 —
9 4 2 8
0 5 8 2 9 9 4 2 8
MONITOR
VIDEO1 VIDEO2 MUTE
OUT
26 pin L H
27 pin L L
m
9 9
9 9
H
H