MITSUBISHI WT42313 Service Manual

Cover page of MITSUBISHI WT42313 Service Manual

Service Manual for MITSUBISHI WT42313, downloadable as a PDF file.

Manual details

  • Immediate download after payment.
  • Delivered as a PDF file.
  • The manual has 82 pages
  • File size: 19.42 MB
  • Available language versions: English
  • Different language versions may vary sligthly in file size and page count.

We guarantee that...

  • our manuals are complete,
  • the manual includes circuit diagrams,
  • our manuals are checked with antivirus,
  • We'll issue refund if the manual is damaged, incomplete or unreadable (our refund policy)

Sample pages

Thumbnail of page 1Thumbnail of page 2Thumbnail of page 3Thumbnail of page 4
Thumbnail of page 5Thumbnail of page 6Thumbnail of page 7Thumbnail of page 8
Thumbnail of page 9
background image
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
9351 Jeronimo Road, Irvine, CA 92618-1904
Copyright © 2003 Mitsubishi Digital Electronics America, Inc.
All Rights Reserved
CAUTION:
Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and
"PRODUCT SAFETY NOTICE" contained in this manual.
MITSUBISHIELECTRIC
Service
Manual
2003
· Weight and dimensions shown are approximate.
· Design specifications are subject to change without notice.
PROJECTION TELEVISION
K20 CHASSIS
SPECIFICATIONS
· Power
: AC 120V, 60Hz
240W
· Frequency
: VHF
54 ~ 470MHz
Range
UHF 470 ~ 806MHz
· Antenna Input
: VHF/UHF 75
unbalanced
·
CRT Size
: [7 inches]
·
High Voltage
: 32.0kV (at 0A)
·
Cabinet
: 39"(W)x34"(H)x25"(D)
Demensions
·
Weight
: 105 lbs
· Speaker
: Two 5" round, full range (8
5W)
· Input Level
: VIDEO IN JACK (RCA Type)
1.0Vp-p 75
unbalanced
: AUDIO IN JACK (RCA Type)
-4.7dBm 43k
unbalanced
: S-VIDEO IN JACK (Y/C separate)
Y=1.0 Vp-p C=0.286Vp-p(BURST)
75
unbalanced
: COMP / Y, Cr, Cb (RCA Type)
Y=1.0 Vp-p. Cr, Cb=700mVp-p
: ATV / Y(G), Pr(R), Pb(B), H, V
Y 1.0Vp-p with sync 75
(RCA Type)
Pr, Pb: 700mV 75
H, V: 3.0Vp-p 75
· Digital Inputs
MonitorLinkTM/DVI
· Output Level
: VIDEO OUT JACK (RCA Type)
1.0Vp-p 75
unbalanced
: AUDIO OUT JACK (RCA
Type)
-4.7dBm 4.7k
unbalanced
WT-42313
WT-42413
background image
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
9351 Jeronimo Road, Irvine, CA 92618-1904
Copyright © 2003 Mitsubishi Digital Electronics America, Inc.
All Rights Reserved
CAUTION:
Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and
"PRODUCT SAFETY NOTICE" contained in this manual.
MITSUBISHIELECTRIC
Service
Manual
2003
· Weight and dimensions shown are approximate.
· Design specifications are subject to change without notice.
PROJECTION TELEVISION
K20 CHASSIS
SPECIFICATIONS
· Power
: AC 120V, 60Hz
240W
· Frequency
: VHF
54 ~ 470MHz
Range
UHF 470 ~ 806MHz
· Antenna Input
: VHF/UHF 75
unbalanced
·
CRT Size
: [7 inches]
·
High Voltage
: 32.0kV (at 0A)
·
Cabinet
: 39"(W)x34"(H)x25"(D)
Demensions
·
Weight
: 105 lbs
· Speaker
: Two 5" round, full range (8
5W)
· Input Level
: VIDEO IN JACK (RCA Type)
1.0Vp-p 75
unbalanced
: AUDIO IN JACK (RCA Type)
-4.7dBm 43k
unbalanced
: S-VIDEO IN JACK (Y/C separate)
Y=1.0 Vp-p C=0.286Vp-p(BURST)
75
unbalanced
: COMP / Y, Cr, Cb (RCA Type)
Y=1.0 Vp-p. Cr, Cb=700mVp-p
: ATV / Y(G), Pr(R), Pb(B), H, V
Y 1.0Vp-p with sync 75
(RCA Type)
Pr, Pb: 700mV 75
H, V: 3.0Vp-p 75
· Digital Inputs
MonitorLinkTM/DVI
· Output Level
: VIDEO OUT JACK (RCA Type)
1.0Vp-p 75
unbalanced
: AUDIO OUT JACK (RCA
Type)
-4.7dBm 4.7k
unbalanced
WT-42313
WT-42413
background image
background image
MODELS: WT-42313 / WT-42413
Page 3
INTRODUCTION .................................................................................................................................. 5
PRODUCT SAFETY NOTICE ............................................................................................................... 5
SAFETY PRECAUTIONS..................................................................................................................... 6
CABINET DISASSEMBLY
Front View Disassembly .................................................................................................................. 7
Rear View Disassembly ................................................................................................................... 8
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS
Lenticular Screen and Fresnel Lens Removal .................................................................................. 9
Lenticular Screen and Fresnel Lens Installation ............................................................................... 9
SERVICING PCBs
Accessing the Main Chassis ......................................................................................................... 10
PCB Locations ................................................................................................................................ 11
Main Components Location ............................................................................................................. 11
CRT REPLACEMENT
Second Anode Lead Removal ........................................................................................................ 12
CRT Removal ................................................................................................................................. 12
CRT Installation .............................................................................................................................. 23
ELECTRICAL ADJUSTMENTS
Test Equipment .............................................................................................................................. 15
Initial Setup .................................................................................................................................... 16
Main Menu Defaults ....................................................................................................................... 16
LED Indicator Diagnostics .............................................................................................................. 17
Circuit Adjustment Mode ................................................................................................................ 18
Service Mode Reset ....................................................................................................................... 19
Convergence Adjustment Mode ...................................................................................................... 19
Adjustment Items List .................................................................................................................... 21
Adjustment Test Points .................................................................................................................. 24
Adjustment Procedures
High Voltage Regulation ........................................................................................................ 25
Main/Sub Y Level .................................................................................................................. 25
Main/Sub Color Level ............................................................................................................ 26
CRT Cutoff ............................................................................................................................. 26
White Balance (NTSC) .......................................................................................................... 27
White Balance (HD) .............................................................................................................. 27
Black Level............................................................................................................................ 28
Sub Contrast ......................................................................................................................... 28
Dynamic Focus Preset ......................................................................................................... 29
Lens Focus ........................................................................................................................... 29
Electrostatic Focus ............................................................................................................... 30
On Screen Display Character Position .................................................................................. 30
Deflection/Convergence Geometry Presets ........................................................................... 31
Deflection Circuit Geometry Adjustments ............................................................................. 32
Convergence Circuit Geometry Adjustments ......................................................................... 33
Centering and Static Convergence ........................................................................................ 34
Coarse Convergence Adjustments ........................................................................................ 35
Fine Convergence Adjustments ............................................................................................. 36
CONTENTS
background image
MODELS: WT-42313 / WT-42413
Page 4
CHIP PARTS REPLACEMENT .......................................................................................................... 37
REPLACEMENT PARTS
Parts Ordering ................................................................................................................................ 38
Critical and Warranty Parts Designation ........................................................................................ 38
Parts Tolerance Codes ................................................................................................................... 38
Replacement Part Notes
When replacing the RF-Switch or PCB-SIGNAL ................................................................... 38
When replacing the EEPROM .............................................................................................. 38
Quick Reference List ...................................................................................................................... 39
Service Parts List ........................................................................................................................... 40
Screen Parts List ........................................................................................................................... 52
CIRCUITRY BLOCK DIAGRAMS
Power Supply ................................................................................................................................. 53
Video / Color Signal Path ............................................................................................................... 54
Sync Signal Path ........................................................................................................................... 55
Deflection / HV ............................................................................................................................... 56
X-Ray Protect ................................................................................................................................. 57
HV Regulation ................................................................................................................................ 58
Sound Signal Path ......................................................................................................................... 59
Convergence .................................................................................................................................. 60
Control Circuitry ............................................................................................................................. 61
Schematic Diagrams
SCHEMATIC DIAGRAMS
BLOCK DIAGRAM ......................................................................................................................... S1
PCB-SIGNAL 2 (Micro) .................................................................................................................. S2
PCB-SIGNAL 3 (VCJ_ .................................................................................................................... S3
PCB-TERMINAL 1 (AV SW & Decoder)) ........................................................................................ S4
PCB-UNI ........................................................................................................................................ S5
PCB-CRT/CONTROL/FRONT/AI ................................................................ See VK20 Service Manual
PCB-MAIN ................................................................................................ See VK20 Service Manual
PCB-SIGNAL 1 ......................................................................................... See VK20 Service Manual
PCB-SIGNAL 4 ......................................................................................... See VK20 Service Manual
PCB TERMINAL 2 ..................................................................................... See VK20 Service Manual
PCB DOUBLER 1 ..................................................................................... See VK20 Service Manual
PCB DOUBLER 2 ..................................................................................... See VK20 Service Manual
PCB DOUBLER 3 ..................................................................................... See VK20 Service Manual
PCB LAYOUT DIAGRAMS ................................................................................................................ P1
background image
MODEL: WT-42313 / WT-42413
Page 5
INTRODUCTION
This service manual provides service instructions for PTV Models WT-42313 and WT-42413 using the VK20 chassis.
Service personnel should read this manual thoroughly before servicing this chassis.
This service manual includes:
1. Assembly and disassembly instructions for the front and rear cabinet components.
2. Servicing of the Lenticular Screen and Fresnel Lens.
3. Servicing printed circuit boards (PCBs).
4. CRT replacement procedure.
5. Electrical adjustments.
6. Chip parts replacement procedures.
7. Circuit path diagrams.
The parts list section of this service manual includes:
1. Cabinet and screen parts.
2. Electrical parts.
Schematic and block diagrams of the above listed models are included in this service manual for better under-
standing of the circuitry. PCB drawings are also included for easy location of parts and test points.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in television receivers have special safety related characteristics. These
characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be
obtained by using replacement components rated for higher voltage, wattage, etc.
Replacement parts which have special safety characteristics are identified in this service manual.
Electrical components having such features are identified by shading
on the schematic diagram and by bold
type in the parts list of this service manual. The replacement for any safety part should be identical in value
and characteristics.

Reviews

There are no reviews of this manual yet.

Related Products

Cover page of MITSUBISHI CT32CW1BD/CD Service Manual

This manual has 142 pages, file size: 54.91 MB. It's available in languages: English.

Cover page of MITSUBISHI WS65311 Service Manual

This manual has 83 pages, file size: 4.58 MB. It's available in languages: English.

Cover page of MITSUBISHI CT2555STX Service Manual

This manual has 180 pages, file size: 27.62 MB. It's available in languages: English.

Cover page of MITSUBISHI VS-50502 Service Manual

This manual has 83 pages, file size: 7.61 MB. It's available in languages: English.

Cover page of MITSUBISHI VS-450501 Service Manual

This manual has 74 pages, file size: 5.69 MB. It's available in languages: English.