Sony KDL-26NL140 / KDL-32NL140 / KDL-37NL140 Service Manual ▷ View online
49
KDL-26NL140/32NL140/37NL140
KDL-26NL140/32NL140/37NL140
KDL-37NL140 ONLY
RF CABLE (CONTINUED)
�
MA2 Wire Dressing 37NL [Rev: 1.0]
HM3 cable through this
clamp
clamp
RF cable through
this clamp
this clamp
Spkr cable:
1-910-044-84
1-910-044-84
Spkr + HM3 cables
through this clamp
through this clamp
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50
KDL-26NL140/32NL140/37NL140
KDL-26NL140/32NL140/37NL140
KDL-37NL140 ONLY
�
MA2 Wire Dressing 37NL [Rev: 1.0]
AC Cord:
AC Cord:
50 mm
G2
AC HOLDER
4-022-115-12
4-022-115-12
AC cord through this clamp
(before the ferrite)
(before the ferrite)
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AC CORD
51
KDL-26NL140/32NL140/37NL140
KDL-26NL140/32NL140/37NL140
2-1. RESETTING THE TV TO THE FACTORY DEFAULTS
Traditional Service Mode is not available in this chassis. The only option for service technicians is to reset all of the settings to the Factory Default from
the Self Diagnostic screen.
the Self Diagnostic screen.
CAUTION: Resetting the TV to the Factory Defaults will over-write all customer settings. Before performing this reset, contact the customer to
determine what adjustments they have made.
determine what adjustments they have made.
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
+
TV POWER .
The Self Check list displays.
This is the SAME as accessing Self Diagnostic Function.
Results for all of the following diagnostic items are displayed at the bottom of the screen. No error has occurred if the screen displays a “0”.
QR0.5-C510
Model Information: 32NL140 8000001
Model Information: 32NL140 8000001
ADC Auto Calibration
Power On Time: 00001H
SMPTE
ColorBar100
ColorBar100
ITU 709
Gain
424
1020
420
1020
456
16
8
1840
128
1592
128
1608
424
1020
422
1020
460
16
Offset
Cr
Y
Cb
ITU 601
VGA
2:MAIN POWER 0 6:BL 0
3:DC ALERT1 0 7:TEMP 1
4:DC ALERT2 0 8:Audio 0
5:DC ALERT3 0
3:DC ALERT1 0 7:TEMP 1
4:DC ALERT2 0 8:Audio 0
5:DC ALERT3 0
Gain
Offset
Gain
Offset
Factory Default
Indicates an error was detected
Indicates no error was detected
Model Information & Serial Number
Software Version
Power Time
Resets all settings
to the Factory Defaults
Diagnostic
List
List
Stored Data
from ADC calibration
(from factory)
3. From the Self Diagnostic screen, select Factory Default button and then select Yes.
4. To start Auto Program, select Yes.
NOTE: Allow 30+ minutes for Auto Program to complete.
5. Using the customers information, reset their adjustments.
SECTION 2: SERVICE ADJUSTMENTS
52
KDL-26NL140/32NL140/37NL140
KDL-26NL140/32NL140/37NL140
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.
Les composants identifi es per un trame et une marque
!
sont critiques pour la
securite. Ne les remplacer que par une piece portant le numero specifi e.
Le symbole
indique une fusible a action rapide. Doit etre remplace par une
fusible de meme yaleur, comme maque.
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.
H1 (SWITCH UNIT)
POWER UNIT
G1D (KDL-26NL140/32NL140)
G2D (KDL-37NL140)
G1D (KDL-26NL140/32NL140)
G2D (KDL-37NL140)
HM3
BM
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