Ic Pin Functions Description - Sony HTC-V5550 Service Manual

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6-20. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC101 MASTER CONTROL (uPD780016AYGF-018-3BA)
Pin No. Pin Name
1 CAPM-EMG (+)
2 to 7 LED1 to LED6
8 NC
9 GND
10 X2
11 X1
12 VDD
13 NC
14 +5V
15 RESET
16 GND
17 NC
18 SCOR
19 NC
20 NC
21,22 GND
23 VDD
24 AVDD
25 ADJ
26 A-SHUT
27 B-SHUT
TE
L 13942296513
28 B-HALF
29 KEY A
30 KEY B
31 AMS
32 CD/VCD
33 GND
34 SQ-DATA-IN
35 CAN'T-USE
36 SQ-CLK
37 to 45 GND
46 CD-POWER
47 CD-DATA
48 CD-CLK
49 PBC
50 VCD
51 PBC-OFF
52 DECO1
53 EXIST2
54 DISC2
55 IIC/DATA
56 IIC/CLK
57 XRST
58 XLT
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59 NC
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I/O
O Capstan motor control 1 (+) signal output
O LED
— Not used
— Ground
O
X'tal (5MHz)
I
— Power supply (+5V)
— Not used
— Power supply (+5V)
I Reset signal input
— Ground
— Not used
O Subcode data request signal output
—
Not used
—
— Ground
— Power supply (+5V)
— Power supply (+5V)
I CD adjust point port Normal "H"
I A Deck reel pulse detector
I B Deck reel pulse detector
I Half detector signal input
I
Key analog input
I
Connected to ground
I
I CD/VCD select input (Fixed at "L")
— Ground
I Subcode Q data clock input
— Not used
I Sub code Q data clock input
— Ground
O CD power on signal output
O CD data output
O CD clock output
O
O LED ON/OFF control output
O
O LED ON/OFF control output
O LED ON/OFF control output
LED ON/OFF control output
O
I Serial data input
I Serial clock input
O CD reset signal output
O CD latch signal output
Not used
—
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Description
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