Sharp CD-JX20X(GY) Service Manual page 23

Pin No.
Terminal Input/Output
Name
/Signal 1 Function
I
41 KOl Input Key matrix input
42 K02 Input Key matrix input
43
K03 Input Key matrix input
44
RESET
input
RESET
Reset signal input
45 NC -
Active
1
Oscillator connection terminal
R80
R81
input
Input
PW IN
TM IN
Hold operation request/cancel signal
"I..": when power supply is ON
L
" H" : when power supply is OFF
" L" : when timer is ON (When power is ON: H - Ordinarv, L - Timer
L
52
53
54
R82
Input
CD HSP
R83 output EX PLY
R90 Output SY RDY
operation)
CD high-speed detection (H: High speed, L: Constant speed)
H
External PLAY output (H: Ordinary, L: External PLAY) L
For synchronization " L" is outputted in REC (standby) mode. L'
55
56
57
58
59'
60
61
62 l 1
63 *1
R91 Input
SY ON
R92 Input/Output CK
RCO ' Input RDY
RCl
Input
DATA
RC2 -
RC3 Input TM REC
VDD Input
VDD
RDO Input RV MOD2
RDI Input RV MOD1
Synchronizing signal detection (H: REC run, L: REC standby)
H
Remote control request signal
READY signal from remote control decoder L
Remote control serial data
: .
Not used
Timer REC switch detection (H: OFF, L: ON) L
Power
Reverse switch input
L
Reverse switch input L
TAPE FN TAPE position detection (H: Tape, L: Radio/Line/CD) H
65 R41 Input CD FN
Input
CD state detection (" H" : When CD position is set and switch is ON) H
66 R42
SY INH Sync. prohibition signal detection (H: Ordinary, L: prohibition) H
67'
R43 output COUNT1
Ti counter UP/DOWN (H: UP, L: DOWN)
* Terminal
marked with * is terminal not connected externally (open).
*I.