Read Sony CFD-Z125 / CFD-Z135 Service Manual online
Pin No.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60 to 78
79
80
I/O
O
O
—
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Description
Power on/off control signal output for the tuner circuit power supply “L”: others function, “H”: RADIO.
Not used
Back light on/off control signal output terminal “H”: back light on. Not used
Ground terminal
Power on/off control signal output for the main power supply “H”: power on
Audio mute on/off control signal output terminal “H”: mute on
Mega bass 1 control signal output terminal “H”: on Not used (open). Not used
Mega bass 2 control signal output terminal “H”: on Not used (open). Not used
Surround on/off control signal output terminal “H”: on. Not used
Serial data transfer clock signal output to the M62429 (IC302)
Serial data output to the M62429 (IC302)
Chip enable signal output to the M62429 (IC302) “L”: address, “H”: data. Not used
Serial latch pulse signal output to the CXD2508Q (IC702) “H”: active
Reset signal output to the CXA1782BQ (IC701) and CXD2508Q (IC702) “L”: reset
Mute on/off control signal output to the CXD2508Q (IC702) “H”: mute on
Not used (open)
Key scan signal output terminal (“L” active) *1
Not used (open)
Segment drive signal output to the liquid crystal display (LCD801). (Pins 76, 77 are not used)
Common drive signal output to the liquid crystal display (LCD801)
Common drive signal output to the liquid crystal display (LCD801)
Pin Name
AUDIO LED
BACK LIGHT
VSS
POWER SW OUT
SYSTEM MUTE
OUT
FUNCTION SW A
FUNCTION SW B
SURROUND
CLK OUT
DATA OUT
CE OUT
XLAT
XRST
MUTE
—
KEY SCAN OUT 1
KEY SCAN OUT 2
KEY SCAN OUT 3
—
SEG 17 to SEG 1
COM 4
COM3
— 48 —
KEY IN 1 (pin @¶)
KEY IN 2 (pin @•)
KEY IN 3 (pin @ª)
KEY IN 4 (pin #º)
KEY IN 5 (pin #¡)
KEY IN 6 (pin #™)
KEY IN 7 (pin #£)
KEY IN 8 (pin #¢)
KEY IN 9 (pin #∞)
KEY SCAN OUT 1
(pin %§)
POWER
CD
TAPE
RADIO
MEGA BASS
(Not used)
VOLUME+
fl
π
± TIME SET +
KEY SCAN OUT 2
(pin %¶)
SLEEP
CLOCK
TIMER
STANDBY
SURROND
(Not used)
MEGA BASS
(Not used)
VOLUME –
PLAY MODE
DISPLAY/ENTER
≠ TIME SET –
KEY SCAN OUT 3
(pin %•)
—
—
—
—
Mode-1
Mode-2
Mode-3
—
Mode-4
*1 KEY MATRIX TABLE
Mode No.
Function
SHORT
OPEN
Mode-1
TEST MODE
TEST MODE
NORMAL MODE
Mode-2
SURROND
Provided
Not provided
Mode-3
AUTO REVERSE
Provided
Not provided
Mode-4
TIME DISPLAY
12H
24H
SYSTEM
In this set
Open
Open
Open
12H
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