Sony XDR-S55DAB Service Manual ▷ View online
XDR-S55DAB
5
2-2. CHASSIS SECTION
2-3. MAIN BOARD, TU1
arm (jog)
knob (TUNE)
knob (VOL)
spring (jog)
three claws
Remove the two solders.
two (+) BV tapping screws
(B 2.6 )
(B 2.6 )
chassis section
S610
knob (hold)
cabinet (front) section
screw
screw
screw
two screws
two screws
RB two screws
Remove the five solders.
RE
MAIN board
RG
TU1
holder (DAB_MDL)
REG board
claw
two claws
RT
Remove the ten solders.
Remove the solder.
Remove the three solders.
XDR-S55DAB
6
2-4. KEY BOARD, MICRO COMPUTER BOARD SUB ASSY
KEY board
two screws
MICRO COMPUTER board sub assy
three screws
claw
chassis
XDR-S55DAB
XDR-S55DAB
7
7
SECTION 3
DIAGRAMS
3-1. BLOCK DIAGRAM
DAB+3.3V
6
7
3
1
2
49
39
39
53
54
54
25
4
75
3
37
40
38
46
76
78
78
4
2
3
2
3
8
5
5
7
1
9
1
9
2
29
30
16
15
15
21
I
24
33
I
30
10
12
11
XT1
XT2
RESET
HOLD
TXD0
RXD0
MUTE
BEEP
STB
DATA
SCK
DATA
SCK
INR
INL
ANT
DAB+3.3V
DAB+1.2V
DAB+1.2V
LOUT
ROUT
2
3.3V
1
1.2V
SI DOUT
SI DIN
KS0
I
KS3
KR4
I
KR7
AC CHK
AMP SW
CPU+3.3V
RADIO SW
63
1.2V SW
CPU+3.3V
S601
HOLD
VDET1
61
VDET2
1
BATT OFF
LIGHT
LCD CONT
LCD CLK
LCD SO
LCD CS
OUTL
OUTR
VCC+6V
VCC
VSS
VDD
VREF
GND
GND
GND
CPU+3.3V
1
2
LCD+3.3V
SWITCH
Q504
D501
LCD
BACK
LIGHT
BACK LIGHT
LED DRIVE
Q502
MUTE
Q101
MUTE
Q201
BACK LIGHT
LED CONTROL
Q503
AMP+B
SWITCH
Q953
AC CHECK
Q501
AMP CONTROL
SWITCH
Q952
KEY
NETWORK
S501–505,
S601–609
S601–609
LCD
CONTROL
SWITCH
Q505
VOUT
1
2
VIN
OUT
IN
58 SHIMUKE1
VOUT
2
1
VIN
OFF
ON
S515
RESET
RV301
VOL
RESET
IC503
TU1
MODULE
(DAB TUNER)
AUDIO AMP
IC301
AUDIO AMP
CONTROL SWITCH
IC302
SYSTEM CONTROL
IC501
LCD501
LIQUID CRYSTAL
DISPLAY PANEL
ANT1
TELESCOPIC
ANTENNA
VOUT
COM+6V
COM+6V
COM+6V
VCC+6V
CPU+3.3V
CPU+3.3V
CPU+3.3V
VCC+6V
COM+6V
D502
D503
D952
VOLTAGE DETECT
IC502
DAB+3.3V REG
IC952
CPU+3.3V REG
IC951
D951
J901
DC IN 6V
DRY BATTERY
SIZE " AA "
(IEC DESIGNATION LR6)
4PCS,6V
VIN
CONT
1
8
2
3
5
RV301-1
RV301-2
J301
SP301
SPEAKER
J
X501
32.768kHz
CL1
DAB+1.2V
VOUT
DAB+1.2V REG
IC953
VIN
CN
5
1
3
• Signal Path
: AUDIO
CL1
OPEN : UK MODEL
OPEN : UK MODEL
SHORT : SP MODEL
XDR-S55DAB
XDR-S55DAB
8
8
For Schematic Diagrams.
Note:
• All capacitors are in
• All capacitors are in
μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω and
1
/
4
W or less unless otherwise
specifi ed.
• f :
internal
component.
• C : panel designation.
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.)
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : AUDIO (DAB)
• Voltages are taken with VOM (Input impedance 10 M
• 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.
F
F
:
AUDIO
(DAB/FM)
• Abbreviation
SP :
SP :
Singapore
model
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
• X : Parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Waveforms
– MICRO COMPUTER Board –
– MICRO COMPUTER Board –
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.
1.4 Vp-p
32.768 kHz
IC501
RT (XT1)
0.5 V/DIV, 20
μsec/DIV
3-2. CIRCUIT BOARDS LOCATION
JACK board
MICRO COMPUTER board
MAIN board
TU1
KEY board
REG board
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
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