Read Sharp CD-DVD500 (serv.man18) Service Manual online
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CD-DVD500H
Input/Output
Port Name
Terminal Name
1
VSS
VSS
––
GND
2
Data
DATA
Input
Serial data input.
3
Clock
CLOCK
Input
Shipt clock of data.
4
LCK
LCK
Input
Latch clock of data.
5
Q0
T_SOL B
Output
TAPE 2 Solenoid control.
6
Q1
T_SOL A
Output
TAPE 1 Solenoid control.
7
Q2
T_MOTOR
Output
Tape motor control.
8
Q3
PLAY_FWD LED
Output
Play forward LED.
9
Q4
STOP LED
Output
Stop LED.
10
Q5
L+
Output
Loading Motor Driver Output
11
Q6
L-
Output
Loading Motor Driver Output
12*
Q7
N.C.
—
—
13*
Q8
CD DISC 1 LED
Output
CD Disc 1 LED.
14*
Q9
CD DISC 2 LED
Output
CD Disc 2 LED.
15*
Q10
CD DISC 3 LED
Output
CD Disc 3 LED.
16*
Q11
PLAY_REV LED
Output
Play reverse LED.
17
OE
OE
Input
Output enable.
18
VDD
VDD
Input
Power.
Pin No.
IC702 VHiBU2092F/-1: Input/Output Expander (BU2092F)
1
VSS
VSS
—
GND
2
Data
DATA
Input
Serial data input.
3
Clock
CLOCK
Input
Shipt clock of data.
4
LCK
LCK
Input
Latch clock of data.
5
Q0
C-SPRLY
Output
Center speaker relay control.
6
Q1
S-SPRLY
Output
Surround speaker relay control.
7
Q2
SW-SPRLY
Output
Subwoofer speaker relay control.
8
Q3
2 ch/6 ch-RLY
Output
Speaker control.
9
Q4
SW-MUTE
Output
Subwoofer mute control.
10
Q5
T_BIAS
Output
Tape record bias.
11
Q6
T_T 1/T 2
Output
Tape T 1/T 2 change.
12
Q7
REC/PLAY
Output
Tape Rec/Play change.
13
Q8
FAN CONT
Output
Fan control.
14
Q9
-11 dBATT
Output
-11 dB attenuator.
15
Q10
N.C.
—
—
16
Q11
DD RESET
Output
Dolby decorder reset.
17
OE
OE
Input
Output enable.
18
VDD
VDD
Input
Power.
IC181 VHiBU2092F/-1: Input/Output Expander (BU2092F)
Function
Input/Output
Port Name
Terminal Name
Pin No.
Function
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
