Read Sony CDX-R3300EE Service Manual online
21
21
CDX-R3300EE
3-4. BLOCK DIAGRAM — DISPLAY SECTION —
S900-908,
910-922
KEY ACK
SWITCH
Q501
REMOTE
RECEIVER
IC971
X501
32.768kHz
15
16
12
13
95
72
74
73
94
27
25
20
96
83
SYSTEM CONTROL
IC500 (3/3)
LCD DRIVER
IC901
KEYIN0
DATA
CLK
CE
LCDSO
LCDCKO
LCDCE
KEYIN1
KEYACK
ADON
RCIN1
RCIN0
SIRCS
XIN
XOUT
OSCOUT
OSCIN
7
RETRA_SW
X500
27.648MHz
63
64
62
COM4
COM1
LCD
LCD901
PANEL +B
PANEL +B
LED902-908,
910-922
910-922
LED931,932
(LCD BACK LIGHT)
D501
J561
(REMOTE IN)
51
|
54
3
|
50
|
SEG3
SEG50
|
DI
CL
CE
1 DIMMER
PANEL +B
KEY
ILLUMINATION
(
)
PANEL +B
D963
D962
LED961
(DISC IND)
S961
OPEN
KEY MATRIX
3
3
4
LCD DRIVE
CONTROL
IC981
4
LED
DRIVER
Q901
DIMMER ON/OFF
SWITCH
Q902
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
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
specified.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM
J
: CD
for printed wiring boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
32.768kHz
IC500
qh
(XOUT)
— Main Board —
2
27.648MHz
IC500
qs
(OSCOUT)
2.8Vp-p
2.6Vp-p
1
• Waveforms
— Servo Board —
— Servo Board —
(MODE: CD PLAY)
IC3
whwk
(A, C)
3
0V
Approx.
150mVp-p
150mVp-p
16.9344MHz
IC3
uj
(XTAO)
0V
2
Approx. 100mVp-p
IC3
wd
(FEI)
1
Approx. 100mVp-p
IC3
wa
(TEI)
IC3
wjwl
(B, D)
4
6
2Vp-p
IC3
ra
(RFACO)
5
18.43MHz
IC4
ia
(X1)
7
1Vp-p
Approx.
150mVp-p
150mVp-p
Approx.
0.8Vp-p
0.8Vp-p
Click on the first or last page to see other CDX-R3300EE service manuals if exist.