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DP-M87
CIRCUIT DESCRIPTION
2-2. Pin functions : $C75217GF-642
(IC6)
2-3. Pin functions : TC74HC165AP
(IC3)
Function
Reset input port
FL grid control port
Not used
Shif load input
Clock input
Magazine switch (SW4)
Memory switch (SW3)
Unload switch (SW5)
Load switch (SW5)
No use
Ground
Data output
No use
Home position switch (SW2)
Start limit switch (SW1)
3
HT orbs omit a) ——
14
|OPNSW
Tray open switch (SW6)
-
No use
FOK
Vec
Power supply (+5V)
MUTG
2-4. TOC data output of serial codes for Al file
When the CD player reads the TOC data of a disc (in
the play mode), the following serial codes (16 bits) are
DATA
output.
eae
¢ CD MAX TRACK No. [61XX]
MOd6l C606 x. xciossiinciciePincasaeiiadaes 61H
FUNCTION COE 0.0... ..eceecceceeeccsseeeeneaes XXH (Max TNO)
¢ CD TOTAL TIME (min.) [62XX]
Model code ou... sees 62H
SDATA
Serial DATA in/out port
Function code .........0000 XXH (Total time in min.)
VO | Serial BUSY in/out port
¢ CD TOTAL TIME (sec.) [62XX]
49
Door switch input port of mechanism
Model code uo...
63H
Control port of unloading motor for mechanism
FUNCTION COdE ........e cece XXH (Total time in sec.)
Control port of up motor for mechanism
Control port of down motor for mechanism
Example
Control port of solenoid for mechanism
When a disc containing 20 tunes of 65 minutes and
2 seconds in total is played, the following three codes
{6120}, [6265] and [6302] are output continuously.
FL driver negative power supply
FL pre-driver power supply
FL grid contro! port also used for key-scan
+5V power supply
FL grid contro! port also used for key-scan
Signal detection port for SENSE signal
from signal processor and servo IC
Q-data read clock output port
Q-data input port
33
4
5
6
7
8
9
1
2
3
4
5
6
7
8
3
3
3
3
3
3
4
4
4
4
4
4
4
4
GND
NC (Open)
Key input port
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