Panasonic CQC9800U - AUTO RADIO/CD DECK, Service Manual

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Pin
No.
Port Description (I/
O)
(V)
FM AM CD
78 X0A Connecting to
GND I 0 0 0
79 Vss GND I 0 0 0
80 X1 Crystal
oscillator input I 2 2 2
81 X2 Crystal
oscillator
output O 2 2 2
82 Vdd Power supply I 5 5 5.1
83 P00 Pldaun port for
writing I 0 0 0
84 P01 Pull-up port for
writing I 5.1 5.1 5.1
85 AM PWR-
IC_OFFSET
detection I 5 5 0
86 SLEEP_PB PWR-IC_STBY
control output O 5 5 5.1
87 MUTE B PWR-IC_MUTE
control output O 5 5 5
88 ILL_SENS External
dimmer
control input I 4.8 4.9 4.9
89 S_M_CONT 3.3V control
for SUB
microcomputer
O 5 5 5
90 FR_DO EPROM data
input O/I 1.8 1.6 1
91 FR_DI EPROM
Communication
Data Output O 0 0 0
92 FR_CLK EPROM
Communication
CLK O 0 0 0
93 S_W_UP
SUB.WAKE.UP.REQ
O 4.9 4.9 5
94 DISPM_CONTPower supply
control output
of display 5V
O/I 0 0 0
95 HB_CLK - O 5 5 5
96 HB_DATA Rotary
Encoder
Signal Input 1 I 5 5 5
97 HB_CS Rotary
Encoder
Signal Input 2 I 5 5 5
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