Pioneer FX-MG8606ZT-91/UC, Service Manual

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89
FX-MG8606ZT,MG8606ZT-91,MG8706ZT,MG8706ZT-91
*PD5594A
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
Pin No. Pin Name I/O Function and Operation
59 ENC2- I AUD encoder (-) input
60
dload
I CDM load key input
61 ILL O LAMP power supply control output
62 VCC Power supply terminal
63 RECIVE O During RDS data reception output
64 VSS GND
65 RDSMUTE O RDS mute output
66 AMMUTE O AM mute output
67 FMMUTE O FM mute output
68 DOS I Door switch input
69 MS I Music sense input
70
f
/R O Cassette mechanism head forward/reverse select output
71 PLAY O MS gain select output
72
mtl
I Cassette mechanism tape select input
73
asens
I ACC power sense input
74
csej
I Tape eject sense input
75
bsens
I Back up power sense input
76 NR O Dolby NR ON/OFF select output
77 CSLOAD I Tape loading detect input
78 POS I Cassette mechanism position sense input
79 RES I Cassette mechanism reverse end sense input
80 NES I Cassette mechanism forward end sense input
81 TEST I Test mode input
82 SC2 O Cassette mechanism sub motor control 2 output
83 SC1 O Cassette mechanism sub motor control 1 output
84 CM O Cassette mechanism capstan motor control output
85
stby
O Cassette mechanism driver stand-by output
86
lrst
I LCD driver reset output
87 LCE1 O Chip enable output pin for LCD driver 1
88 LCE2 O Chip enable output pin for LCD driver 2
89
st
I FM stereo input
90 FMSD I FM SD input
91 NL I Noise level input
92 CL I RDS tune off sense input
93 RDSL RDS signal level
94 ILL- Rheostat signal input
95 NC Not used
96 AVSS I A/D converter GND
97 NC Not used
98 VREF I A/D converter reference voltage input
99 AVCC A/D converter power supply
100 LOFF O LCD driver inhibit output
Format Meaning
C C MOS
30
31 50
51
80
81
100
1