Read Sony CDX-GT130 / CDX-GT230 / CDX-GT280 / CDX-GT280S / CDX-GT282S / CXS-2869F / CXS-GT2316F Service Manual online
CDX-GT130/GT230/GT280/GT280S/GT282S
CDX-GT130/GT230/GT280/GT280S/GT282S
16
16
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• no mark : FM
( ) : AM/MW/SW
< > : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M
( ) : AM/MW/SW
< > : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
J
: CD PLAY
F :
FM
f :
AM/MW/SW
L : AUX
• Abbreviation
AR :
AR :
Argentina
model
For schematic diagrams:
Note:
Note:
• All capacitors are in
μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω and
1
/
4
W or less unless otherwise
specifi ed.
• f
: internal component.
• C : panel designation.
4-2. BLOCK DIAGRAM – DISPLAY SECTION –
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• a :
• X : Parts extracted from the component side.
• a :
Through
hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Waveforms
– MAIN Board –
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
Note:
The components identi-
fi ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
The components identi-
fi ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
• Indication of transistor.
C
B
These are omitted.
E
Q
X502
32.768kHz
10
11
94
1
2
2
100
95
SYSTEM CONTROL
IC501 (2/2)
LCD DRIVE
IC901
KEYIN1
CL
CE
CE
LCD_SO
LCD_CKO
LCD_CE
DIMMER
KEYIN0
92 KEYACK1
82 RE-IN0
RE-0
RE-1
RE-1
81 RE-IN1
XOUT
XIN
X501
11.06MHz
15
13 OSCOUT
3 NOSE_SW
OSCIN
47
48
46
2
COM1
I
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
3
|
34
•
39
35
|
38
S1
I
S48
DI
DIMMER
SWITCH
Q931
LED931
PANEL+B
(
)
KEY MATRIX
LSW901–914,
S901
(VOLUME)
PUSH SELECT
RE901
ROTARY
ENCODER
BACK LIGHT
1
LCD
BACK LIGHT
SWITCH
Q932
LCD BACK
LIGHT
(
)
LED941,944,951–953,
982,1951,1952,
LSW901–914
KEY
ILLUMINATE
4 SIRCS
REMOTE
CONTROL
SIGNAL
RECEIVER
IC971
42 RC IN1
91 KEYACK
97 RC IN0
BU+3.3V
S502
FREQUENCY
SELECTOR
10k
9k
J561
(REMOTE IN)
70 AREASEL2
GT280/GT280S/GT282S
GT230/GT280/GT280S/GT282S
GT280/GT280S/GT282S
0.04 Vp-p
4MHz
0.8 Vp-p
32.768 kHz
0.05 V/DIV, 0.5
μ sec/DIV
0.5 V/DIV, 20
μsec/DIV
IC1
RI (XTAL 1)
IC501
(XIN)
1.7 Vp-p
11.06MHz
0.5 V/DIV, 0.1
μsec/DIV
IC501
RH (OSCIN)
Ver. 1.2
• Abbreviation
AR :
AR :
Argentina
model
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