DOWNLOAD Sony KF-42WE620 / KF-50WE620 Service Manual ↓ Size: 6.42 MB | Pages: 127 in PDF or view online for FREE

Model
KF-42WE620 KF-50WE620
Pages
127
Size
6.42 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kf-42we620-kf-50we620.pdf
Date

Sony KF-42WE620 / KF-50WE620 Service Manual ▷ View online

LCD PROJECTION TELEVISION
 SERVICE MANUAL 
LA-2
 
CHASSIS
 
MODEL NAME 
REMOTE COMMANDER 
DESTINATION  
9-965-969-04
KF-42WE620
 RM-Y916 
US/CND/MEXICO 
KF-50WE620
 RM-Y916 
US/CND/MEXICO 
Self Diagnosis
Supported model
KF-50WE620  
RM-Y916
3
KF-42WE620/50WE620
KF-42WE620/50WE620
TABLE OF CONTENTS
Specifi cations ................................................................................. 4
Warnings and Cautions .................................................................. 5
Safety Check-Out ........................................................................... 6
Self-Diagnostic Function................................................................. 7
SECTION 1:  DISASSEMBLY............................................................... 10
1-1.  Rear Cover Removal............................................................ 10
1-2.  Center Pillar Removal .......................................................... 10
1-3. Service Position ...................................................................11
1-4.  Chassis Assembly and D.C. Fan Removal ...........................11
1-5.  Power Supply Block Removal (Lamp Drive Unit)................. 12
1-6.  UD Board and RF Antenna Switch Removal........................ 12
1-7.  U Board Removal................................................................. 13
1-8.  F and G1 Board Removal .................................................... 13
1-9.  DIC Block, AU Board and C2 Board Removal ..................... 14
1-10. A Board Removal ................................................................. 14
1-11. T Board Removal ................................................................. 15
1-12. Front Cover Assembly Removal........................................... 15
1-12-1. Replacing the Lamp................................................. 15
1-13. H3 Board Removal (KF-42WE620 Only) ............................. 16
1-14. H4 Board Removal (KF-42WE610 Only) ............................. 16
1-15. H3 and H4 Board Removal (KF-50WE620 Only)................. 17
1-16. H2 Board Removal............................................................... 17
1-17. H1 Board Removal............................................................... 18
1-18. Screen Mirror Block Assembly Removal .............................. 18
SECTION 2:  CIRCUIT ADJUSTMENTS.............................................. 19
2-1.  Setting the Service Adjustment Mode .................................. 19
2-2.  Service Adjustment Mode Memory ...................................... 19
2-3.  Memory Write Confi rmation Method .................................... 20
2-4.  Remote Adjustment Buttons and Indicators ......................... 20
2-5. Service Data......................................................................... 21
2-6. ID Map Table ........................................................................ 93
SECTION 3:  DIAGRAMS..................................................................... 94
3-1.  Circuit Boards Location ........................................................ 94
3-2.  Printed Wiring Boards and 
Schematic Diagrams Information ......................................... 94
3-3. Block Diagrams .................................................................... 96
  A Block Diagram (1 of 2) ................................................. 96
  A Block Diagram (2 of 2) ................................................. 97
  AU Block Diagram ........................................................... 98
 
G1 Block Diagram ........................................................... 99
 
H3, H1, H2, and T Block Diagrams ............................... 100
 
U Block Diagram ........................................................... 101
3-4.  Schematics and Supporting Information ............................ 102
A Board Schematic Diagram (1 of 4).................................. 102
A Board Schematic Diagram (2 of 4).................................. 103
A Board Schematic Diagram (3 of 4).................................. 104
A Board Schematic Diagram (4 of 4).................................. 105
AU Board Schematic Diagram (1 of 2)............................... 108
AU Board Schematic Diagram (2 of 2)............................... 109
G1 Board Schematic Diagram ............................................ 111
F Board Schematic Diagram ...............................................112
U Board Schematic Diagram (1 of 3) ..................................115
U Board Schematic Diagram (2 of 3) ..................................116
U Board Schematic Diagram (3 of 3) ..................................117
UD Board Schematic Diagram (1 of 2)................................119
UD Board Schematic Diagram (2 of 2)............................... 120
H1 Board Schematic Diagram............................................ 122
H2 Board Schematic Diagram............................................ 124
H3 Board Schematic Diagram............................................ 126
H4 Board Schematic Diagram............................................ 128
T Board Schematic Diagram .............................................. 129
3-5. Semiconductors ................................................................. 130
SECTION 4:  EXPLODED VIEWS ...................................................... 131
4-1.  Cover, Screen Mirror Block ................................................ 131
4-2. Bottom Block ...................................................................... 132
4-3.  Chassis - 1 ......................................................................... 133
4-4.  Chassis - 2 ......................................................................... 134
4-5.  Optical Unit Block............................................................... 135
SECTION 5:  ELECTRICAL PARTS LIST.......................................... 136
SECTION TITLE   
PAGE
SECTION TITLE   
PAGE
4
KF-42WE620/50WE620
KF-42WE620/50WE620
SPECIFICATIONS
Design and specifi cations are subject to change without notice.
120V AC, 60Hz 
 
 
210W
Under 1 W
DVI-HDTV
1 terminal, 3.3V T.M.D.S., 50 ohms
The DVI-HDTV input terminal is compliant with the EIA-861 
standard and is not intended for use with personal computers.
Video (IN)
4 total 
1Vp-p, 75ohms unbalanced, sync negative 
S Video (IN)
4 total
Y: 1Vp-p, 75ohms unbalanced, sync negative 
C: 0.286Vp-p (Burst signal), 75ohms
Audio (IN)
6 total 
500 mVrms (100% modulation)
Impedance:47 kilo ohms
Power Requirements
Power Consumption (W)
 
In Use (Max)
 In 
Standby 
 Inputs/Outputs
Audio (VAR/FIX)
1 total 
500 mVrms at the maximum volume setting (Variable)
500 mVrms (Fixed)
Impedance (Output):2 kilo ohm
Control S (IN/OUT)
1 total 
Minijacks
Component Video Input
2 (Y, PB, PR)
Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative 
PB: 0.7 Vp-p, 75 ohms;
PR: 0.7 Vp-p, 75 ohms 
RF Inputs
2 total 
Converter
1 total 
KF-42WE620
KF-50WE620
Speaker Output (W)
Woofer
Dimensions (W x H x D)
mm
1,201 x 819 x 371 mm
1,377 x 928 x 452 mm
in
47
1/4
 x 32 
1/4
 x 14 
1/2
 in
54 
1/4
 x 36 
1/2
 x 17 
3/4
 in
Mass
kg
32 kg
39.5 kg
lbs
70 lbs 12 oz
87 lbs 1 oz
5W x 2
20W
Television system
American TV standard, NTSC
Channel coverage
VHF: 2-13/ UHF: 14-69/ CATV: 1-125 
Antenna
75-ohm external antenna terminal for VHF/UHF
Projection System
3 LCD Panels, 1 lens projection system
LCD Panel
0.87 inch TFT LCD panel Approx. 3.28 million dots (1,092,168 
pixels)
Projection Lens
High Performance, large diameter hybrid lens F2.4
Lamp
UHP lamp, 100W 
XL-2100U
Supplied Accessories
Remote Commander RM-Y916
Two Size AA (R6) Batteries
Cleaning Cloth
Optional Accessories
TV Stand
  SU-GW2 (KF-42WE620 Only) 
  SU-GW1 (KF-50WE620 Only)
Lamp
 XL-2100U
Control S Cable
 RK-G69
Component Video Cable
 VMC-10/30
AV Receiver
  STR series or equivalent
5
KF-42WE620/50WE620
KF-42WE620/50WE620
WARNINGS AND CAUTIONS
CAUTION
These servicing instructions are for use by qualifi ed service personnel only. To reduce the risk of electric shock, do not perform any 
servicing other than that contained in the operating instructions unless you are qualifi ed to do so.
WARNING!!
An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of 
this receiver is directly connected to the ac power line.
!
 SAFETY-RELATED COMPONENT WARNING!!
Components identifi ed by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for safe 
operation. Replace these components with Sony parts whose part numbers appear as shown in this manual or in supplements 
published by Sony. Circuit adjustments that are critical for safe operation are identifi ed in this manual. Follow these procedures 
whenever critical components are replaced or improper operation is suspected. 
ATTENTION!!
Ces instructions de service sont à l’usage du personnel de service qualifi é seulement. Pour prévenir le risque de choc électrique, ne 
pas faire l’entretien autre que celui contenu dans le Mode d’emploi à moins que vous soyez qualifi é faire ainsi.
Afi n d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout 
dépannage. Le chássis de ce récepteur est directement raccordé à l’alimentation du secteur.
ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifi es par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de pieces 
sont d’une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont le numero 
de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont l’importance 
est critique pour la securite du fonctionnement sont identifi es dans le present manuel. Suivre ces procedures lors de chaque 
remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.
Page of 127
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Sony KF-42WE620 / KF-50WE620 Service Manual ▷ Download

  • DOWNLOAD Sony KF-42WE620 / KF-50WE620 Service Manual ↓ Size: 6.42 MB | Pages: 127 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony KF-42WE620 / KF-50WE620 in PDF for free, which will help you to disassemble, recover, fix and repair Sony KF-42WE620 / KF-50WE620 TV. Information contained in Sony KF-42WE620 / KF-50WE620 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.