Pioneer CD-R1546ZH, Руководство по обслуживанию

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SCU-M2096ZH,CD-R1546ZH
7. GENERAL INFORMATION
7.1 PARTS
7.1.1 IC
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Pin Functions (PD4944A)
Pin No. Pin Name I/O Format Function and Operation
1 VST O C Strobe pulse output for electronic volume
2 VCK O C Clock output for electronic volume
3 VDT O C Data output for electronic volume
4 AVSS I A/D GND
5,6 NC Not used
7 AVREF1 (Connect to VDD)
8 KYDT I Key data input
9 DPDT O C Display data output
10–13 NC Not used
14 LCDBK O C LCD back light output
15 RDSTEST I RDS test input
16 RDSDI I Serial data input for RDS IC
17 RDSDO O C Serial data output for RDS IC
18 RDSCK O C Serial clock for RDS IC
19 RDSRST O C Reset output for RDS IC
20 RDSSEL O C Select output for RDS IC
21–29 NC Not used
30 DMINH O C Mechanism mute cancel output
31 MECPW O C Cassette mechanism power output
32
taplod
I Tape loading sense input
33 VSS GND
34
mcmute
I Cassette mechanism mute input
35 NR I Tape running input
36
swvdd
O N Grille power supply control output
37,38 NC Not used
39
tumute
O N Tuner mute output
40 NC Not used
41
syspw
O C System power supply control output
42 PDI I Data input from PLL IC
43 PCK O C Serial clock output for PLL IC
44 PDO O C Data output for PLL IC
45 PEE O C Beep tone output
46 PEE1 O C Beep tone output
47 PCE2 O C Chip enable output for PLL IC
48 NC Not used
49 TELIN I Telephone mute input
50 FMSD I FM SD input
51
st
I ST signal input
52 IPPW O C Power supply control output for IP BUS interface IC
53 ASENBO O C Slave power supply control output
54,55 NC Not used
56 IPDO O C IP driver data output
57 IPDI I IP driver data input
58 NC Not used
59 MUTE O C Mute output
60
reset
I Reset input
61 RDSRDY I Ready input from RDS IC
62
bsens
I Back up power sense input
63
asens
I ACC power sense input
64 NC Not used
65
dsens
I Grille detach sense
66 EJECT I EJECT signal input
67
adpw
O C Control output for analog input reference power