Sony CDX-L550 Service Manual page 14
Fm/mw/lw cd player
Hide thumbs
Also See for CDX-L550:
- Service manual (45 pages) ,
- Operating instructions manual (146 pages) ,
- Installation/connections manual (12 pages)
Table of Contents
Advertisement
CDX-L550/L550V/L550X
QQ
3 7 63 1515 0
Pin No.
Pin Name
53
CD RST
54
A0
55
STB
56
X EN
57
LIMIT
58
PH1
59
D SW
60
INSW
61
NC (PH3)
62
CD LM LO
63
CD LM EJ
64, 65
NCO
66
AMPATT
67
AMPON
68
CDMD ON
69
ATT
70
VOLATT
71 – 75
NCO
76
COLSW
77
COLSEL
78
DIMSEL
79
XCD ON
TE
L 13942296513
80
NCO
81 – 85
NCO
86
E2P SIO
87
E2P CKO
88
NCO
89
FLASH W
90
NS MASK
91
AD ON
92
DOORIND
93
ILLON
94
DOORSW
95
DAVSS
96, 97
REIN1, 0
98
RCIN1
99
RAMBU
100
DAVDD
www
.
14
http://www.xiaoyu163.com
I/O
O
Reset signal output for CD servo IC.
O
Command/parameter discrimination signal output for CD servo IC.
O
Data strobe signal output for CD servo IC.
O
Crystal oscillation control output for CD servo IC.
I
CD mechanism deck Limit switch detection input
I
CD mechanism deck PH1 detection input (Not used in this set)
I
CD mechanism deck Down switch detection input
I
CD mechanism deck Disc in switch detection input
O
CD mechanism deck PH3 detection input (Not used in this set)
O
CD mechanism deck loading motor control output (Loading direction)
O
CD mechanism deck loading motor control output (Eject direction)
O
Not used. (Open)
O
Power amplifier attenuator control output
O
Power amplifier standby control output
O
CD mechanism deck power supply control output
O
System attenuator control output
O
Electric volume attenuator control output
O
Not used. (Open)
Key illumination 1 color/2 color select initial setting input
I
(L: 1 COLOR, H: 2 COLOR) (Fixed at L: CDX-L550, H: CDX-L550V/L550X)
I
1 color initial setting input (L: amber, H: green) (Fixed at L in this set)
Manual dimmer initial setting input (L: dimmer without, H: dimmer with)
I
(Fixed at L: CDX-L550/L550X, H: CDX-L550V)
O
CD signal processing crystal drive output
O
Not used. (Fixed at L in this set)
O
Not used. (Open)
I/O
EEPROM serial data input/output
O
EEPROM serial clock output
O
Not used. (Open)
I
Flash microcomputer write detection input
O
Noise mask output
O
Key power supply control output
O
Sub panel power control output
O
Illumination power control output
I
Front panel OPEN/CLOSE detection input
—
D/A converter power supply (–) pin
I
Rotary encoder input 1, 0
I
Rotary commander SHIFT key input
I
Not used. (Fixed at L in this set)
—
D/A converter power supply (+) pin (+5 V)
x
ao
u163
y
i
http://www.xiaoyu163.com
2 9
8
Pin Description
Q Q
3
6 7
1 3
1 5
co
.
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
Advertisement
Table of Contents
