Sony HCD-VZ50MD Service Manual page 104

• IC701 TMP88CS77AF-1A90 SYSTEM CONTROL
Pin No. Pin Name
1 LED SEL
2 to 12 LED0 to LED10
13 STANDBY LED
14 TIMER LED
15, 16 VOLUME A, B
17 to 22 BPF1 to BPF5
23 L+R
24 to 26 KEY 0 to KEY2
27 STICK 1
28 STICK 2
29 VSS
30 VASS
31 VAREF
32 VDD
33 GRID EXT CLK
34 2G
35 1G
36 to 50 P35 to P49
51 VDD
52 GRID EXT RESET
53 to 86 P34 to P1
87 VKK
88 VDD
89 X IN
90 VSS
91 X OUT
92 RESET
93 LED11
94 LED12
95 TEST
96 WAKE UP
97 I2C data
98 I2C clk
99 LED13
100 SIRCS
104
(PANEL BOARD)
I/O
O LED select signal output
O LED driver output
O STANDBY LED driver output
O TIMER SEL LED driver output
I Rotary encoder pulse input
I Rec level signal input
I Rec level signal input for feedback
I Key input
I STICK CONTROL Up / Down
I STICK CONTROL Right / Left
— Ground
— Ground
— Analog reference voltage
— Power supply
O Clock output for GRID EXTENDER
O FL gride signal output
O FL gride signal output
O FL segment signal output
— Power supply
O Reset output for GRID EXTENDER
O FL segment signal output
— Power supply for FL segment signal output
— Power supply
I X'tal(12.5MHz) input
— Ground
O X'tal(12.5MHz) output
I RESET signal input
O LED driver output
O LED driver output(Not used)
I Connected to ground
O WAKE-UP signal output
O IIC serial data output
O IIC serial clock output
O LED driver output
I Remote commander input
Descriptions