Pioneer CD-R1546ZH Manual de serviço - Página 38

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Pioneer CD-R1546ZH Manual de serviço
SCU-M2096ZH,CD-R1546ZH
- Pin Functions (PD4762A)
Pin No.
Pin Name
1,2
NC
3
DPDT
4
KYDT
5
NC
6
GND
7
X2
8
X1
9
VDD
10
TESTIN
11
NC
12
RESET
13
RENIN
14–18
NC
19-22
KDT3-0
23–26
KST6-3
27
AVSS
28–30
KST2-0
31
VOLUP
32
VOLDN
33–35
NC
36
AVDD
37
AVREF
38,39
NC
40
VSS
41–50
NC
51-54
COM0-3
55
BIAS
56–58
VLC0-2
59
VSS
60
NC
61–97
S37-1
98–100
NC
*PD4762A
31
50
38
I/O
Function and Operation
Not used
I
Display data input
O
Remote control data output
Not used
GND
Crystal oscillator connection pin
Crystal oscillator connection pin
Power supply
I
Test program mode input
Not used
I
Reset input
I
Remote control pulse input
Not used
I
Key data input
O
Key strobe output
I
A/D GND
O
Key strobe output
I
Volume up input from encoder
I
Volume down input form encoder
Not used
Positive power supply terminal for analog circuit
A/D converter reference voltage
Not used
GND
Not used
O
LCD common output
LCD power supply
LCD power supply
GND
Not used
O
LCD segment output
Not used
100
81