General Information; Parts - Pioneer SCU-M2096ZH Service Manual

7. GENERAL INFORMATION

7.1 PARTS

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