Pioneer FX-MG8506ZT, Service Manual

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FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91
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Pin Functions (PD5556B)
Pin No. Pin Name I/O Function and Operation
1 LOFF O LCD driver OFF output
2 ECE O Chip enable output for EEPROM
3 BLIGHT O Back Light ON/OFF output
4 ILL O LAMP power supply control
5 LDO O LCD driver data output
6 NC Not used
7 LCK O Clock output for LCD driver
8 BYTE VCC joint
9 CNVSS VSS joint
10,11 NC Not used
12
reset
I Reset input
13 XOUT O Crystal oscillating element connection pin
14 VSS GND
15 XIN I Crystal oscillating element connection pin
16 VDD Power supply
17
nhi
VDD joint
18
dload
I CD load key input
19
asens
I ACC power sense input
20
bsens
I Back up power sense input
21 RX2 I IE-BUS data input
22 IPPW O IP-BUS driver power supply output
23
ilsens
I Illumination sense input
24 LCE1 O Chip enable output pin for LCD driver
25 VDSEL GND
26,27 NC Not used
28 BLIGHT O Back Light ON/OFF output
29 RX1 I IE-BUS data input
30 TX O IE-BUS data output
31 BSO O P-BUS serial data output
32 BSI I P-BUS serial data input
33 BSCK O P-BUS clock output
34 NC Not used
35 BRXEN I/O P-BUS reception enable input/output
36
brst
I P-BUS reset input
37
bsrq
O P-BUS service request output
38,39 NC Not used
40 LRST O LCD driver reset output
41 EPM Not used
42–44 NC Not used
45
swvdd
O Display microcomputer power supply output
46 CE Not used
47
sysmute
O System mute output
48 ANSW O Analog SW output
49 CDILL O CD illumination output
50 TAPEMUTE O Tape mute output
51 MUTE O BUS mute output
52
illpow
O Illumination power supply output
53
dssill
O DSS illumination output
54
mode
I AUDIO mode key input
55 ENC1+ I Encoder 1 (+) input
56 ENC1- I Encoder 1 (-) input
57 KD0 I Key return input
58 KD1 I Key return input
59 KD2 I Key return input
60 KD3 I Key return input
61
kst%
O Key strobe output
62 VCC Power supply
7.2 IC