Read Sony KDL-26NL140 / KDL-32NL140 / KDL-37NL140 Service Manual online
LCD DIGITAL COLOR TELEVISION
SERVICE MANUAL
MA2
CHASSIS
MODEL NAME
REMOTE COMMANDER
DESTINATION
9-883-783-03
KDL-26NL140
RM-YD026 US/CANADA
KDL-32NL140
RM-YD026 US/CANADA
KDL-37NL140
RM-YD026 US/CANADA
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 5/2008
☛
: UPDATED ITEM
REVISION
DATE
SUBJECT
5/2008
No revisions or updates are applicable at this time.
8/2008
Reissue entire manual due to multiple udates.
12/2008
Replaced BM Board Conductor Side PWB. Replaced page 65.
LCD DIGITAL COLOR TELEVISION
SERVICE MANUAL
MA2
CHASSIS
MODEL NAME
REMOTE COMMANDER
DESTINATION
9-883-783-03
KDL-26NL140
RM-YD026 US/CANADA
KDL-32NL140
RM-YD026 US/CANADA
KDL-37NL140
RM-YD026 US/CANADA
Self Diagnosis
Supported model
KDL-26NL140
RM-YD026
3
KDL-26NL140/32NL140/37NL140
KDL-26NL140/32NL140/37NL140
TABLE OF CONTENTS
SECTION TITLE
PAGE
SECTION TITLE
PAGE
Specifi cations ................................................................................. 4
Warnings and Cautions .................................................................. 6
Safety-Related Component Warning .............................................. 7
Safety Check-Out ........................................................................... 9
Self-Diagnostic Function ............................................................... 10
SECTION 1: DISASSEMBLY ............................................................... 12
1-1. Rear Cover Removal ............................................................ 12
1-2. Switch Unit (H1 Board) Removal ......................................... 12
1-3. LED Guide and HM3 Board Removal .................................. 13
1-4. G1D Board/G2D Board (Power Unit) Removal .................... 13
1-5. Side Jack Bracket, BG2A Board and RF Bracket Removal . 14
1-6. Table-Top Stand Removal .................................................... 14
1-7. Under Cover Removal .......................................................... 15
1-8. Structural Frames and Brackets Removal ........................... 16
1-9. LCD Panel Removal
............................................................. 17
1-10. ETC-Inverter Board Removal .............................................. 17
1-11. Loudspeakers Removal ....................................................... 18
Wire Dressing ............................................................................... 19
KDL-26NL140 Only .............................................................. 19
KDL-32NL140 Only .............................................................. 29
KDL-37NL140 Only .............................................................. 40
SECTION 2: SERVICE ADJUSTMENTS ............................................. 51
2-1. Resetting the TV to the Factory Defaults ............................. 51
SECTION 3: DIAGRAMS ..................................................................... 52
3-1. Circuit Boards Location ........................................................ 52
3-2. Printed Wiring Boards and
Schematic
Diagrams
Information
......................................... 52
3-3. Block Diagram
...................................................................... 54
3-4. Schematics and Supporting Information .............................. 55
BM Board Schematic Diagram (1 of 10) .............................. 55
BM Board Schematic Diagram (2 of 10) .............................. 56
BM Board Schematic Diagram (3 of 10) .............................. 57
BM Board Schematic Diagram (4 of 10) .............................. 58
BM Board Schematic Diagram (5 of 10) .............................. 59
BM Board Schematic Diagram (6 of 10) .............................. 60
BM Board Schematic Diagram (7 of 10) .............................. 61
BM Board Schematic Diagram (8 of 10) .............................. 62
BM Board Schematic Diagram (9 of 10) .............................. 63
BM Board Schematic Diagram (10 of 10) ............................ 64
G1D Board Schematic Diagram (KDL-26NL140 Only) ........ 66
G1D Board Schematic Diagram (KDL-32NL140 Only) ........ 69
G2D Board Schematic Diagram (1 of 2)
(KDL-37NL140
Only)
....................................................... 72
G2D Board Schematic Diagram (2 of 2)
(KDL-37NL140
Only)
....................................................... 73
HM3 Board Schematic Diagram ........................................... 76
3-5. Semiconductors ................................................................... 78
SECTION 4: EXPLODED VIEWS ........................................................ 79
4-1. Rear Cover Assembly and Table-Top Stand Assembly ....... 79
4-2. Chassis ................................................................................ 80
4-3. Connectors
........................................................................... 81
4-4. Bezel Assembly, LCD Panel and Speakers ......................... 82
4-5. Screw Legend ...................................................................... 83
SECTION 5: ELECTRICAL PARTS LIST ............................................ 84
APPENDIX A: ENCRYPTION KEY COMPONENTS ..........................A-1
4
KDL-26NL140/32NL140/37NL140
KDL-26NL140/32NL140/37NL140
SPECIFICATIONS
Design and specifi cations are subject to change without notice.
120 V AC, 60 Hz
VIDEO (IN) 1/2
S VIDEO (4-Pin Mini DIN (VIDEO 1 Only)
Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative
C: 0.286 Vp-p (Burst signal), 75 ohms
VIDEO
1.0 Vp-p, 75 ohms unbalanced, sync negative
AUDIO
500 mVrms (100% modulation)
Impedance:47
kilohms
COMPONENT IN 1/2
YP
YP
B
P
R
(Component Video)
Y:1.0 Vp-p, 75 ohms unbalanced, sync negative
P
B
:0.7 Vp-p, 75 ohms
P
R
:0.7 Vp-p, 75 ohms
Signal format: 480i, 480p, 720p, 1080i
AUDIO
500 mVrms (100% modulation)
Impedance: 47 kilohms
Power Requirements
HDMI IN 1/2:
HDMI:
HDMI:
Video: 480i, 480p, 720p, 1080i
Audio: Two channel linear PCM 32, 44.1 and
48 kHz, 16, 20 and 24 bits
AUDIO: 500 mVrms (100% modulation)
Impedance: 47 kilohms
AUDIO OUT:
500 mVrms (100% modulation)
More than 500 mVrms (Fixed)
DIGITAL AUDIO OUT (COAXIAL):
PCM 2.0 Coaxial signal
PC IN:
D-sub 15-pin, analog RGB, 0.7 Vp-p, 75 ohms, positive
PC AUDIO INPUT:
Stereo mini jack, 500 mVrms, 47 kilohm
HEADPHONES:
Stereo
Stereo
mini
jack
Impedance:
16 ohms
Trademark Information
Macintosh is a trademark licensed to Apple,
Inc., registered in the U.S.A. and other countries.
Inc., registered in the U.S.A. and other countries.
Manufactured under license from Dolby
Laboratories. “Dolby” and the double-D symbol
are trademarks of Dolby Laboratories.
Laboratories. “Dolby” and the double-D symbol
are trademarks of Dolby Laboratories.
HDMI, the HDMI logo and High-Definition
Multimedia Interface are trademarks or
registered trademarks of HDMI Licensing, LLC.
Multimedia Interface are trademarks or
registered trademarks of HDMI Licensing, LLC.
TruSurround XT, SRS and (
) symbol are
trademarks of SRS Labs, Inc. TruSurround XT
technology is incorporated under license from
SRS Labs, Inc.
technology is incorporated under license from
SRS Labs, Inc.
Fergason Patent Properties, LLC:
U.S. Patent No. 5, 717, 422
U.S. Patent No. 6, 816, 141
U.S. Patent No. 5, 717, 422
U.S. Patent No. 6, 816, 141
Blu-ray is a trademark.
“BRAVIA” and
,
, BRAVIA
Theatre Sync and DMPORT are trademarks or
registered marks of Sony Corporation.
registered marks of Sony Corporation.
“PLAYSTATION” is a registered trademark
and “PS3” is a trademark of Sony Computer
Entertainment Inc.
and “PS3” is a trademark of Sony Computer
Entertainment Inc.