Pioneer FX-MG8247ZT/ES Service Manual page 140

1
- Pin Functions (PD5715B)
Pin No. Pin Name
1 VDIN
doorsw
2
A
3 NC
bsrq
4
clamp
5
elhome
6
7 XSCK
8 XSO
9 XSI
xstb
10
xrst
11
12 XA0
13 VDCONT
14 NC
B
bsens
15
16 BRXEN
loadsw
17
modesw
18
19 BSCK
20 BSO
21 BSI
brst
22
23 SBSY
24 CNVSS
reset
25
26 POWER
C
27 CONT
28 Xin
29 Xout
30 VSS
31–38 NC
39 TESTIN
40 DCLOSE
41 WDSL
42 XWIH
43 XEMP
44 CHDT
D
45 CHM0
46 CHM1
47–49 NC
50 XWRE
51 XRDE
52 XQOK
53 EMPH
54 SCONT
55 LOAD
cdmute
56
57 LO2
58 LO1
E
59 ELV2
60 ELV1
61 CG2
62 CG1
63 MIRR
64 LOCK
65 FOK
66–68 NC
adena
69
F
140
1
2
I/O Format Function and Operation
I Power supply short sensor input
I Door open position SW input
Not used
O C P-BUS service request output
I DISC clamp SW input
I ELV reset position SW input
O C CD LSI clock output
O C CD LSI data output
I CD LSI data input
O C CD LSI strobe output
O C CD LSI reset output
O C Control signal distinguishing data from microcomputer
O C VD control output
Not used
I Back up power sense input
I/O C P-BUS reception enable input/output
I Loading position SW input
I ELV OK position SW input
I/O C P-BUS serial clock input/output
O C P–BUS serial data output
I P–BUS serial data input
I P–BUS reset input
I Signal indicating head of subcode block
I GND
I Reset input
O C Servo/Mechanism power supply control output
O C Servo driver output control
I Crystal oscillating element connection pin
O C Crystal oscillating element connection pin
GND
Not used
I Chip check program mode input
I Door close sense input
O C Data comparison area specification signal output
I Data write inhibit input
I Data read inhibit input
I Data comparison mode monitor input
O C Data comparison mode output 0
O C Data comparison mode output 1
Not used
O C DRAM WRT ENBL
O C DRAM READ ENBL
O C SUB-Q OK output
O C DAC emphasis output
O C Mode select output
O C PHOT power supply control
O C CD mute output
O C LOAD motor control terminal output 2
O C LOAD motor control terminal output 1
O C ELV motor control terminal output 2
O C ELV motor control terminal output 1
O C CAM motor control terminal output 2
O C CAM motor control terminal output 1
I CD LSI mirror detector input
I CD LSI spindle lock detector input
I CD LSI FOK signal input
Not used
O C A/D reference voltage output
FX-MG8247ZT/UC
2
3
3
4
4