JVC KS-F54 Service Manual page 28

KS-F545
4.7 UPD178078GF-597 (IC701) : CPU
• Pin layout
• Pin function
Pin No. Symbol
1 ACCDET
2 POWER
3 PCNT
4 STANDBY
5 TAPEIN
6 NC
7 BUSI/O
8 BUSSI
9 BUSSO
10 BUSSCK
11 I2CDAI
12 I2CDAO
13 I2CSCK
14 MODE
15 SUBMO+
16 SUBMO-
17 REEL
18 MSIN
19 DOLBY
20 F/R
21 FF/REW
22 MOTOR
23 LEVEL
24 SM
25 SQ
26 NC
27 AVDD
28 NC
29 KEY0
30 KEY1
31 KEY2
32 AVSS
33 REGCPU
34 VDD
35 REGOSC
36 X2
37 X1
38 GND0
39 SEEK/STOP
1-28 (No.49828)
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I/O
I Power save 1, working together ACC
I Power save 2 , working together Backup
I Power ON/OFF switching output
I Standby position detection input
- Cassette in detection input
- No use
- No use
- No use
- No use
- No use
- No use
O I2C information data output
O I2C information clock output
I/O Mechanism mode position detection input
I Sub motor positive direction input
O Sub motor negative direction output
O Switch for detecting tape end position
I MS input
O Dolby on "H" output
O FWD/REVERSE running direction switch signal input
I Output for input signal level switching for MS
O Main motor output
I Level meter input
I S.meter level input
I Q.quality level input
- No use
- VDD
- No use
I Key input 0
I Key input 1
I Key input 2
- GND
- Regulator for CPU
- VDD
- Regulator for OSC
- Connecting the X'tal oscillator for system clock
I Connecting the X'tal oscillator for system clock
- GND
O Auto seek / Stop selecting output
Descriptions