Ic Pin Function Description - Sony CFD-E10 Service Manual

CFD-E10

4-1. IC Pin Function Description

• IC801 BU24591-7B System Control (CD Board)
Pin No. Pin Name
1 to 5 SEG00 to SEG04
6 to 12 SEG05 to SEG11
13 FOK CON
14 SEG13
15 SEG14
16 XRESET
17 NC
18 NC
19 GSW
20 AMUTE
21 ZSENS
22 YMDATA
23 YMCLK
24 NC
25 MOTOR MUTE
26 GFS TM
27 TEST
28 DEF MODE
29 ADJSEL
30 YMLD
31 XRESET
32 SLED
33 SENSE
34 BUSY
35 2SPD
36 MMUTE
37 ESP
38 RW
39 SUB-Q
40 COMMAND
41 MCK
42 SUBSYQ
43 LID
44 INNER
45 HOLD
46 PLAY/PAUSE
47 RESET
48 GND
49 OSC1
50 OSC2
51 VDD
52 GFS
53 FOK
54 T UP
55 F UP
56 to 58 NC
59 KEY0
60 TEST
61 to 64 COM0 to COM3
12
I/O
O Segment drive signal output to the liquid crystal display
O Segment drive signal output to the liquid crystal display Not used (open)
O FOK control signal output (for all discs)
O FOK control signal output (for CD-RW disc) Not used (open)
O Motor/coil driver muting signal output Not used (open)
O Reset signal output to the DSP (IC703) and RAM CONT (IC704)
O Not used (open)
O Not used (open)
O Gain control signal output to the RF amplifier (IC701) and the switches for CD-RW disc
O Audio muting control signal output "H" : muting on
I ZSENS signal input from the RAM CONT (IC704)
O Data output to the RAM CONT (IC704)
O Clock output to the RAM CONT (IC704)
— Not used (open)
O Motor/coil driver muting signal output "H" : muting on
I GFS detect time setting terminal "H" : 300ms, "L" : 30ms
I Test key terminal
I Focus servo mode signal input at defect "Open " : gain down, "Ground" : hold
I Automatic adjustment setting terminal "Open" : automatic adjustment on, "Ground" : automatic adjustment off
O YMLD signal output to the RAM CONT (IC704)
O Reset signal output to the RAM CONT (IC704)
I Sled mode setting terminal "H" : normal mode, "L" : intermittent mode (fixed at "H")
I SENSE signal input from the DSP (IC703)
I BUSYsignal input from the DSP (IC703)
O Normal/double speed selection signal output "L" : double speed
O Motor/coil driver muting signal output "H" : muting on
— Not used (open)
O Data send/receive control signal output to the DSP "H" : receive data from the DSP, "L" : send data to the DSP
I SUB-Q signal input from the DSP (IC703)
O COMMAND signal output to the DSP (IC703)
O Bit clock for SUB-Q and COMMAND output to the DSP (IC703)
I Sub-code sync signal input from the DSP (IC703)
I CD lid open/close detection switch signal input "H" : open
I Mechanism inner limit switch signal input "L" : on
I Hold switch signal input
I Key input from the S801 (u ) "L" : on
I CPU reset signal input "L" : reset
— Ground
I CPU clock input (4.23MHz)
O CPU clock output Not used (open)
— Power supply
I GFS signal input from the DSP (IC703)
I Focus OK signal input from the RF amplifier (IC701)
I Tracking gain up setting terminal "H" : normal, "L" : gain up (fixed at "H")
I Focus gain up setting terminal "H" : normal, "L" : gain up (fixed at "H")
I Not used (fixed at "H")
Key input from the S802 to S805 (x, PLAY MODE, >, .)
I
I IC test terminal Not used (open)
O Common drive signal output to the liquid crystal display
Description