Sony D-EJ985 Service Manual page 25

Sony d-ej985 portable cd player service manual
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• IC801 T5AJ4-4H37 (SYSTEM CONTROLLER)
Pin No.
Pin Name
1
VSS
2
XIN
3
XOUT
4
TEST
5
VCPU
6
P21
7
BATVCC ON
8
RESET
9
FOK
10
NC
11
SCOR
12
GRSCOR
13
AMUTE
14
XSOE
15
XLAT
16
MSDTI
17
MSDTO
18
MSCK
19, 20
VCPU
21
AD CHGMNT
22
AD BATMNT
23
AD VCDKEY2
24
AD SEL
25
AD KEY
26
AD RMKEY
27
AD DCINMNT
28
CLOSE
29
EXTVCC
30
BEEP
31
TSB
32
VCPU2
33
EXTBATT
34
TEXTSKIP
35
DIG TU
36
LOADING
37
XSTAND ON
38
ESP
39
AVLS
40
HOLD
41 to 56
SEG15 to SEG0
57 to 60 COM3 to COM0
I/O
Ground terminal (digital system)
I
System clock input from the CXD3039AR
O
High frequency oscillator output terminal Not used
I
Test terminal for IC Not used
Power supply terminal
O
Digital output LED control signal output "L": ON
O
Power supply control signal output for battery charge "H": ON
System reset signal input from the power control "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
I
Focus OK signal input from the CXD3039AR "L": NG, "H": OK
I
VDRAM input from the power control
I
Subcode sync (S0+S1) detection signal input from the CXD3039AR
I
GRSCOR signal input from the CXD3039AR
O
Analog muting on/off control signal output to the CXD3039AR "H": muting on
O
Serial data output enable signal output to the CXD3039AR
O
Serial data latch pulse signal output to the CXD3039AR
I
Serial data input from the CXD3039AR
O
Serial data output to the power control, spindle motor driver and CXD3039AR
Serial data transfer clock signal output to the power control, spindle motor driver and
O
CXD3039AR
Power supply terminal
I
Battery charge voltage detection signal input from the power control
I
Battery voltage detection signal input and rechargeable battery use/no use detection signal input
I
Key input terminal Not used
I
Plug-in detection signal input of LINE OUT (OPTICAL)
I
Key input terminal (A/D input)
I
Key input from the headphone with remote commander (A/D input)
DC input voltage detection signal input (A/D input) and DC input jack use/no use detection signal
I
input
CD lid open/close detection switch input terminal "L": CD lid open, "H": CD lid close
I
The stop status is reset with the falling edge of input signal
O
VCC2 voltage control signal output terminal "H": ON Not used
O
Beep sound output to the headphone amplifier
I/O
Communication two-way data bus with the headphone with remote commander
Power supply terminal Not used
I
External battery detection signal input
I
Not used
I
Not used
I
Not used
I
Charge stand detection signal input
I
G-PROTECTION switch input terminal "L": G-PROTECTION 1, "H": G-PROTECTION 2
I
AVLS (Automatic Volume Limiter System) switch input terminal "L": normal, "H": limit
I
HOLD switch input terminal
O
Segment drive signal output terminal for the liquid crystal display Not used
O
Common drive signal output terminal for the liquid crystal display Not used
Description
"L": hold off, "H": hold on
D-EJ985
25

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