Ic Pin Description - Sony TCM-50DV Service Manual

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6-6. IC PIN DESCRIPTION

• IC702 TB2004FN-020 (SYSTEM CONTROL)
Pin No. Pin Name
1 GND
2 OSC
3 CL
4 IN1
5 IN2
6 IN3
7 IN4
8 IN5
9 IN6
10 IN7
11 IN8
12 I/O1
13 I/O2
14 OUT8
15 OUT7
16 OUT6
17 OUT5
18 OUT4
19 OUT3
20 OUT2
21 OUT1
22 VDD
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L 13942296513
23 CONT
24 VCC
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I/O
— GND
— For system clock generation (fosc=3.2 kHz)
I RESET input
I Pause ON/OFF by PAUSE SW and VOR. "L" : ON, "H" : OFF
I FWD reset by cassette cover open-close. "L" : ON, "H" : OFF
I Direction "L" : ON, "H" : OFF
I REC/PB switch "L" : REC, "H" : PB
I FF/REW "L" : ON, "H" : OFF
I POWER ON/OFF "L" : ON, "H" : OFF
I Photo reflector pulse input for tape end detection.
I FWD/REV switch "L" : FWD, "H" : REV
— Not used.
— Not used.
— Not used.
— Not used.
— Not used.
O LED ON/OFF "L" : ON, "H" : OFF
O Audio mute "L" : ON, "H" : OFF
O Motor brake "L" : ON, "H" : OFF
O Motor direction "L" : FWD, "H" : REV
O Motor ON/OFF "L" : ON, "H" : OFF
— Power supply for CMOS.
O Boosting circuit control output
— Power supply for bipolar.
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Pin Description
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3 6 7 1 3 1 5
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9 4 2 8
0 5 8 2 9 9 4 2 8
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9 9
9 9