Pioneer CDX-MG6056ZH Service Manual page 58

7.2 IC
- Pin Functions (PD5540A)
Pin No. Pin Name
1 VDIN
2 DOORSW
3 NHIN
4 NHOUT
5 CLAMPSW
6 ELHOME
7 XSCK
8 XSO
9 XSI
xstb
10
xrst
11
12 XA0
13 VDCONT
14 EJECTKEY
asens
15
16 NHPOW
17 LOADSW
18 ELVSW
19–21 TEST1-3
bsens
22
sbsy
23
isens
24
reset
25
26 POWER
27 CONT
28 XIN
29 XOUT
30 VSS
31–33 KST1-3
kd!,@
34,35
36,37 ILL1,2
38 ASCON
testin
39
40 DCLOSE
41 WDSL
42 XWIH
43 XEMP
44 CHDT
45,46 CHM0,1
47-49 NC
50 XWRE
51 XRDE
52 XQOK
53 EMPH
54 SCONT
55 LOAD
cdmute
56
57,58 LO2,1
59,60 ELV2,1
61,62 CG2,1
63 MIRR
64 LOCK
65 FOK
66 EXSCK
67 EXMODE
68 EXSO
I/O Function and Operation
I VD power supply sensor input
I Door open position sense input
I NH-BUS dada input
O NH-BUS dada output
I Disk clamp sense input
I Elevation sense input
O LSI clock output
O LSI data output
I LSI data input
O LSI strobe output
O LSI reset output
O LSI data discernment control signal output
O VD power supply control output
I Eject key input
I ACC power sense input
O NH-BUS dada output
I Loading sense input
I Elevation OK input
Not used
I Back up power sense input
I Signal indicating head of subcode block input
I Illumination sense input
I Reset input
O +5V power supply control output
O Servo driver power supply control output
I Crystal oscillating element connection pin
O Crystal oscillating element connection pin
GND
O Key strobe output
I Key data input
O Illumination output
O Analog switch control output
I Test program mode input
I Door close sense input
O Data comparison designation output
I DRAM data white inhibit input
I DRAM data read inhibit input
I Data comparison mode monitor input
O Data comparison mode output
Not used
O DRAM data white enable output L:enable
O DRAM data read enable output L:enable
O SUB-Q OK output L:SUBQ OK
O DAC EMPH output
O Double speed select output
O LED power supply control output
O Mute output
O Load motor control output
O ELV motor control output
O CAM motor control output
I Mirror detector input
I Spindle lock detector input
I FOK signal input
O Shift clock output
O Latch clock output
O Serial data output
CDX-MG6346ZH,MG6446ZH
57