Read Sony CDX-727 Service Manual online
– 48 –
*1 chucking motor (M103) control
STOP
LOAD
CHUCKING
SAVE
BRAKE
CH.F (pin 4)
“H”
“L”
“H”
“L”
CH.R (pin 5)
“H”
“H”
“L”
“L”
Mode
Terminal
*2 elevator motor (M104) control
STOP
ELEVATOR
UP
ELEVATOR
DOWN
BRAKE
ELV.F (pin %•)
“H”
“L”
“H”
“L”
ELV.R (pin &º)
“H”
“H”
“L”
“L”
Mode
Terminal
Pin No.
Pin Name
I/O
Function
47
D/A.RESET
O
Reset signal output terminal “L”: reset Not used (open)
48
SCK
I
Serial data transfer clock signal input from the SONY bus interface (IC302)
49
SI
I
Serial data input from the SONY bus interface (IC302)
50
SO
O
Serial data output to the SONY bus interface (IC302)
51
SCLK
O
Subcode Q data reading clock signal output to the CXD2530Q (IC101)
52
SUBQ
I
Subcode Q data input from the CXD2530Q (IC101)
53
—
O
Not used (open)
54
C.OUT
I
Track number count signal input from the CXA1992BR (IC11)
55
BUS.ON
I
Bus on/off control signal input from the SONY bus interface (IC302) “H”: bus on
56
—
I
Not used (open)
57
MGLK
I
Magazine eject operation completion detect switch (SW201) input “L”: eject completed
58
ELV.F
O
Motor drive signal (elevator up direction) output to the elevator motor drive (IC301)
“L” active *2
“L” active *2
59
—
O
Not used (open)
60
MAG.SW
I
Magazine in/out detect switch (SW202) input “L”: magazine detected
61
BU.CHK
I
Battery detection signal input terminal “H”: battery on
62
W.UP
I
Bus on or eject switch (SW301) input terminal “H”: bus on or eject switch pushing
63
SCOR
I
Subcode sync (S0+S1) detection signal input from the CXD2530Q (IC101)
64
EJECT
I
Eject switch (SW301) input terminal “H” active
65
CD.CLK
O
Serial data transfer clock signal output to the CXD2530Q (IC101) and CXD2522Q (IC401)
66
CD.XLT
O
Serial data latch pulse signal output to the CXD2530Q (IC101)
67
CD.DATA
O
Serial data output to the CXD2530Q (IC101) and CXD2522Q (IC401)
68
CD.ON
O
D/A converter and servo section power supply on/off control signal output “H”: power on
69
ELV.ON
O
Mechanism deck section power supply on/off control signal output “H”: power on
70
ELV.R
O
Motor drive signal (elevator down direction) output to the elevator motor drive (IC301)
“L” active *2
“L” active *2
71
—
O
Not used (open)
72
VDD
—
Power supply terminal (+5V)
73
NC (VDD)
—
Connected to the power supply (+5V)
74
BUSY
I
Busy monitor input from the CD text decoder (IC501) “L”: busy status
75
RESET
O
Reset signal output to the CD text decoder (IC501) “L”: reset
76
REQ
I
Data request signal input from the CD text decoder (IC501) “L” active
77
CCCLK
O
Command clock signal output to the CD text decoder (IC501)
78
CSO
O
Command data output to the CD text decoder (IC501)
79
CSI
I
Command data input from the CD text decoder (IC501)
80
—
I
Not used (open)
Click on the first or last page to see other CDX-727 service manuals if exist.