Sony HCD-LX9AV Service Manual page 54

• PANEL BOARD IC601 TMP88CC76F-1A25
KET CONTROL)
Pin No. Pin Name
1 SIRCS
2 JOG A
3 LED SCK
4 LED LATCH
5 LED DAT
6 LED POWER
7 LED SEL
8 JOG B
9 VOLUME A
10 VOLUME B
11 to 15 KEY 0 to KEY 4
16 to 20 BPF 0 to BPF 4
21 ALL BAND
22 WAKE UP
23 Vss
24 VAss
25 VAref
26 VDD
27 to 40 GR 3 to GR 16
41 VDD VFT
42, 43 GR 1, GR 2
44 SEG 0
45 to 67 SEG 1 to SEG 23
68 Vkk
69 Vdd
70 X in
71 Vss
72 X out
73 RESET
74 DAILY LED
75 REC LED
76 TEST
77 LED-ECO
2
78 I C DATA
79 I 2 C CLK
80 D-SW
54
(FLUORESCENT INDICATOR TUBE DRIVE, LED DRIVE,
I/O
I Remote commander signal input
I Rotary encoder (S702) pulse input
O LED clock signal output
O LED latch signal output
O LED serial data output
— Not used
O LED select signal output
I Rotary encoder (S702) pulse input
I
Rotary encoder (S701) pulse input
I
I Key input
I Rec level signal input
O Rec level signal output for auto DBDF
O Gradation right/WAKE UP signal output
—
Ground
—
I Analog reference voltage input
– Power supply (+5V)
O FL gride signal output
— Power supply (+5V) for VFT
O FL gride signal output
O FL segment signal output (Not used)
O FL segment signal output
— Power supply (-25V) for FL segment signal output
— Power supply (+5V)
I X'tal (12.5MHz)
— Ground
O X'tal (12.5MHz)
I Reset signal input from main controller
O
LED driver output
O
I Connected ground
O LED driver output
2
I I C SDA input from master controller
I I 2 C SCL input from master controller
I Door switch signal input
Function