Sony KDL-32L504 Service Manual ▷ View online
17
KDL-32L504
KDL-32L504
1 Remove 5 screws from Board cover
2 Pull out the Board from Lamp socket
1-8. ETC-INVERTER MT BOARD REMOVAL
1
2
Cover
ETC-Inverter MT Board
LCD Panel
2
Plastic Strip
holding
Lamp Socket
holding
Lamp Socket
ETC-Inverter MT Board
DO NOT
REMOVE
BACKLIGHT
SCREWS
REMOVE
BACKLIGHT
SCREWS
ETC-INVERTER MT BOARD REMOVAL
Only remove the screws securing the inverter
cover which may be metal or plastic. The
remaining plastic strip contains sockets for the
fluorescent backlights and should never be
loosened. The backlights will pop out of the
sockets and/or break the backlight requiring a
LCD panel replacement. The example shown
is a 32” model but applies to all models.
BACKLIGHT
END VIEW
SOCKET
REMOVE SCREWS
SECURING SHIELD
SECURING SHIELD
REMOVE
CONNECTOR AND
PULL BOARD TO
THE RIGHT
CONNECTOR AND
PULL BOARD TO
THE RIGHT
REMOVE SCREWS
SECURING SHIELD
SECURING SHIELD
18
KDL-32L504
KDL-32L504
WIRE DRESSING
OVERALL VIEW
INV
POWER UNIT
(G2BE)
(G2BE)
TCON
H2
A
CN202
CN201
CN4201
CN402
CN802 CN801
CN4202
CN6201
CN6202
CN6101
CN9100
SWITCH
UNIT
UNIT
SP
SP
19
KDL-32L504
KDL-32L504
SECTION 2: SERVICE ADJUSTMENTS
2-1. ACCESSING SERVICE MODE
1. TV must be in standby mode. (Power off).
2. Press the following buttons on the Remote Commander within a
second of each other:
DISPLAY
Channel
5
Volume
+
POWER .
TOOLS
WIDE
INPUT
CC
DISPLAY
POWER
POWER
Onscreen cursor
and select button
and select button
DISPLAY
RM-YD028
5
VOLUME+
JUMP
To select Service Mode item, use the Up and Down feature of the
joystick on the remote or the volume and channel buttons on the top
of the television.
joystick on the remote or the volume and channel buttons on the top
of the television.
2-2. RESETTING TO FACTORY DEFAULTS
Use the following instructions to restore the User Controls and
Channel Memory settings to the preset factory conditions.
Channel Memory settings to the preset factory conditions.
1. While holding down the on the Remote Commander, press the
POWER button on the right side of the set.
The set restarts and displays the initial setup screen. This may take
several minutes.
several minutes.
Note: Additonal information regarding the Self-Diagnostic function,
will be reviewed in the Training Manual for this model.
SOUND ADJUST
>>
WIDE BAND TUNING
>>
RANGE SCAN
>>
>>
STATUS INFORMATION
>>
LVDS SPECTRUM (%)
< [ 25 ] >
DPMS
<
[
OFF
]
>
LOW OF HPD
< [ 5 ] >
TVD_MCDONE_CNT
< [ 20 ] >
DEMO SPECIAL
>>
BY PASS AVI INFO DEFECT < [ ON ] >
PANEL SELECT
PANEL SELECT
< [ 22C1 (818XX) ] >
SERVICE MODE
[</>] Set [MENU] EXIT
SELF DIAGNOSTIC HISTORY
20
KDL-32L504
KDL-32L504
SECTION 3: DIAGRAMS
3-1. CIRCUIT BOARDS LOCATION
3-2. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS INFORMATION
All capacitors are in μF unless otherwise noted. pF : μμF 50WV or
less are not indicated except for electrolytics and tantalums.
less are not indicated except for electrolytics and tantalums.
All electrolytics are in 50V unless otherwise specifi ed.
All resistors are in ohms. k
Ω=1000Ω, MΩ=1000kΩ
Indication of resistance, which does not have one for rating
electrical power, is as follows:
electrical power, is as follows:
Pitch : 5mm
Rating
electrical
power
:
1
/
4
W
1
/
4
W in resistance,
1
/
10
W and
1
/
16
W in chip resistance.
: nonfl ammable resistor
: fusible resistor
: internal component
: panel designation and adjustment for repair
: earth ground
: earth-chassis
All variable and adjustable resistors have characteristic curve B,
unless otherwise noted.
unless otherwise noted.
Readings are taken with a color-bar signal input.
Readings are taken with a 10M
Ω digital multimeter.
Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
All voltages are in V.
S : Measurement impossibility.
: B+line.
: B-line. (Actual measured value may be different).
: signal path. (RF)
Circled numbers are waveform references.
The components identifi ed by shading and
!
symbol are critical for safety. Replace
only with part number specifi ed.
The symbol
indicates a fast operating fuse and is displayed on the component
side of the board. Replace only with fuse of the same rating as marked.
NOTE: The components identifi ed by a red outline and a mark contain confi dential
information. Specifi c instructions must be adhered to whenever these components
are repaired and/or replaced.
See Appendix A: Encryption Key Components in the back of this manual.
information. Specifi c instructions must be adhered to whenever these components
are repaired and/or replaced.
See Appendix A: Encryption Key Components in the back of this manual.
G2BE (Power)
Switch Unit
(Contains H1 Board)
(Contains H1 Board)
A
H2
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