Aiwa XR-MP50 Service Manual page 42

IC, CXD2585Q
Pin No. Pin Name
1 VDD
2 XRST
3 MUTE
4 DATA
5 XLAT
CLOK
6
7 SENS
8 SCLK
9 ATSK
10 WFCK
11 XUGF
12 XPCK
13 XROF
14 C2PO
15 SCOR
16 C4M
17 WDCK
18 GND
19 COUT
20 MIRR
21 DFCT
22 FOK
23 PWMI
24 LOCK
25 MDP
26 SWIL
27 FSTO
28 VDD
29 SFDR
30 SRDR
31 TFDR
32 TRDR
33 FFDR
34 FRDR
35 GND
36 TEST
37 TEST1
38 VC
39 FE
40 SE
I/O
– Digital power supply.
I System reset. Reset at "L".
I Muting input. Mute at "H". (Connected to GND)
I Serial data input from CPU.
I Latch input from CPU. Latch serial data at falling.
I Serial data transfer clock input from CPU.
O SENS output. Output to CPU.
I SENS serial data read clock input.
I/O Input/output for antishock. (Connected to GND)
O WFCK output. (Not used)
O XUGF output. MNT0, RFCK output by switching command. (Not used)
O XPCK output. MNT1 output by switching command. (Not used)
O GFS output. MNT2, XROF output by switching command.
O C2PO output. MNT3, GTOP output by switching command.
O "H" is output when either subcode sync S0 or S1 is detected.
4.2336 MHz output . At CAV-W mode or when variable pitch, 1/4 division of V16M is output.
O
(Not used)
O Word clock output. F=2Fs. GRSCOR is output by switching command. (Not used)
– Digital GND.
I/O Input/output of track number count signal. (Not used)
I/O Input/output of mirror signal. (Not used)
I/O Input/output of defect signal. (Not used)
I/O Input/output of focus OK signal.
I External control of spindle motor input. (Connected to GND)
GFS is sampled at 460 Hz . "H" is output when GFS is "H". "L" is output when GFS is "L" eight
I/O
times consecutively. Input when LKIN="1". (Not used)
O Servo control of spindle motor output.
I Innermost perimeter of disk detecting signal input.
O 2/3division of XTAI pin output. (Not used)
– Digital power supply.
O Sled drive output.
O Sled drive output.
O Tracking drive output.
O Tracking drive output.
O Focus drive output.
O Focus drive output.
– Digital GND.
I Testing pin. Normally GND.
I Testing pin. Normally GND.
I Middle point voltage input.
I Focus error signal input.
I Sled error signal input.
– 42 –
Description