Pioneer CD-R1546ZH Manual de servicio - Página 35

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Pioneer CD-R1546ZH Manual de servicio

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
35