MITSUBISHI VS45609 Service Manual

Cover page of MITSUBISHI VS45609 Service Manual

Service Manual for MITSUBISHI VS45609, downloadable as a PDF file.

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CAUTION:
Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and
"PRODUCT SAFETY NOTICE" contained in this manual.
· Weight and dimensions shown are approximate.
· Design specifications are subject to change without notice.
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
9351 Jeronimo Road, Irvine, CA 92618-1904
Copyright © 2001 Mitsubishi Digital Electronics America, Inc.
All Rights Reserved
PROJECTION TELEVISION
VZ9 / VZ9+ CHASSIS
MITSUBISHIELECTRIC
Service
Manual
2001
SPECIFICATIONS
· Power Input
: AC 120V, 60Hz
· Power
: 200W
Consumption
· Frequency
: VHF
54 ~ 470MHz
Range
UHF 470 ~ 806MHz
· Antenna Input
: VHF/UHF 75
unbalanced
Single axis input
·
CRT Size
:7"
·
High Voltage
: 32.0kV (at 0A)
·
Speaker
: [VZ9]
4" round type, full range 2 pcs.
(8
10W)
[VZ9+]
5" round type, full range 2 pcs.
(8
10W)
·
Weight
: [VS-45609] 176 lbs
[VS-50609] 198 lbs
[VS-55609] 229 lbs
[VS-60609] 259 lbs
[VS-60719] 253 lbs
[VS-70709] 369 lbs
·
Cabinet
: [Model] (H)x(W)x(D)
Dimensions
: [VS-45609] 48"x38.4"x22.2"
: [VS-50609] 50.4"x42.8"x23.8"
: [VS-55609] 54.8"x46.4"x23.7"
: [VS-60609] 60.8"x50.6"x29"
: [VS-60719] 60.8"x50.6"x29"
: [VS-70709] 70.5"x58.7"x29.4"
·
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 type)
Y:1.0 Vp-p C:0.286Vp-p(BURST)
75
unbalanced
: Component Inputs (RCA Type)
Y: 1.0Vp-p
Cr, Cb: 700mVp-p
·
Output Level
: VIDEO OUT JACK (RCA Type)
1.0Vp-p 75
unbalanced
: AUDIO OUT JACK (RCA Type)
-4.7dBm 4.7k
unbalanced
VZ9+
MODELS
VS-60719
VS-70709
VZ9
MODELS
VS-45609
VS-50609
VS-55609
VS-60609
-
background image
CAUTION:
Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and
"PRODUCT SAFETY NOTICE" contained in this manual.
· Weight and dimensions shown are approximate.
· Design specifications are subject to change without notice.
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
9351 Jeronimo Road, Irvine, CA 92618-1904
Copyright © 2001 Mitsubishi Digital Electronics America, Inc.
All Rights Reserved
PROJECTION TELEVISION
VZ9 / VZ9+ CHASSIS
MITSUBISHIELECTRIC
Service
Manual
2001
SPECIFICATIONS
· Power Input
: AC 120V, 60Hz
· Power
: 200W
Consumption
· Frequency
: VHF
54 ~ 470MHz
Range
UHF 470 ~ 806MHz
· Antenna Input
: VHF/UHF 75
unbalanced
Single axis input
·
CRT Size
:7"
·
High Voltage
: 32.0kV (at 0A)
·
Speaker
: [VZ9]
4" round type, full range 2 pcs.
(8
10W)
[VZ9+]
5" round type, full range 2 pcs.
(8
10W)
·
Weight
: [VS-45609] 176 lbs
[VS-50609] 198 lbs
[VS-55609] 229 lbs
[VS-60609] 259 lbs
[VS-60719] 253 lbs
[VS-70709] 369 lbs
·
Cabinet
: [Model] (H)x(W)x(D)
Dimensions
: [VS-45609] 48"x38.4"x22.2"
: [VS-50609] 50.4"x42.8"x23.8"
: [VS-55609] 54.8"x46.4"x23.7"
: [VS-60609] 60.8"x50.6"x29"
: [VS-60719] 60.8"x50.6"x29"
: [VS-70709] 70.5"x58.7"x29.4"
·
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 type)
Y:1.0 Vp-p C:0.286Vp-p(BURST)
75
unbalanced
: Component Inputs (RCA Type)
Y: 1.0Vp-p
Cr, Cb: 700mVp-p
·
Output Level
: VIDEO OUT JACK (RCA Type)
1.0Vp-p 75
unbalanced
: AUDIO OUT JACK (RCA Type)
-4.7dBm 4.7k
unbalanced
VZ9+
MODELS
VS-60719
VS-70709
VZ9
MODELS
VS-45609
VS-50609
VS-55609
VS-60609
-
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background image
MODELS: VS-45609 / VS-50609 / VS-55609 / VS-60609 / VS-60719 / VS-70709
Page 3
INTRODUCTION ................................................................................................................................5
PRODUCT SAFETY NOTICE ............................................................................................................. 5
SAFETY PRECAUTIONS ................................................................................................................... 6
DISASSEMBLY .................................................................................................................................. 7
Front Cabinet Components ............................................................................................................. 7
Rear Cabinet Components .............................................................................................................. 8
SERVICING THE LENTICULAR LENS AND FRESNEL SCREEN ....................................................... 9
Removal of the Lenticular Screen and Fresnel Lens ........................................................................ 9
Installation of the Lenticular Screen and Fresnel Lens ................................................................... 10
VS-70709 CABINET SEPARATION PROCEDURE ............................................................................ 11
SERVICING THE DIAMONDSHIELDTM r ........................................................................................... 12
DiamondShieldTM Removal ............................................................................................................ 12
DiamondShieldTM Installation ......................................................................................................... 12
SERVICING PCBs ............................................................................................................................ 13
Chassis Removal & PCB Locations .............................................................................................. 13
Major Parts Locations ................................................................................................................... 13
CRT REPLACEMENT ....................................................................................................................... 14
CRT Removal ................................................................................................................................14
CRT Installation ............................................................................................................................ 15
ELECTRICAL ADJUSTMENTS ........................................................................................................ 17
Equipment .................................................................................................................................... 17
Initial Setup ................................................................................................................................... 18
LED Indicator Diagnostics ............................................................................................................. 19
Circuit Adjustment Mode ............................................................................................................... 20
Convergence Adjustment Mode ..................................................................................................... 21
Adjustment Items List ................................................................................................................... 24
Test Points Locations ................................................................................................................... 27
Adjustment Procedures ................................................................................................................ 28
Audio Circuit ........................................................................................................................ 28
High Voltage Control ............................................................................................................ 29
Focus Adjustments .............................................................................................................. 29
CRT Adjustments ................................................................................................................. 30
Video Adjustments .............................................................................................................. 32
PIP Adjustments .................................................................................................................. 33
Cb, Cr Offset Adjustment ..................................................................................................... 34
Character Position ............................................................................................................... 34
Deflection/Convergence Geometry Presets .......................................................................... 35
Height and Vertical Linearity Adjustments ............................................................................ 36
Centering and Static Convergence ....................................................................................... 36
Convergence Geometry Adjustments ................................................................................... 37
Convergence Adjustments ................................................................................................... 38
CONTENTS
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Page 4
MODELS: VS-45609 / VS-50609 / VS-55609 / VS-60609 / VS-60719 / VS-70709
CHIP PARTS REPLACEMENT ......................................................................................................... 40
REPLACEMENT PARTS .................................................................................................................. 41
Parts Ordering .............................................................................................................................. 41
Critical and Warranty Parts Designation ........................................................................................ 41
Parts Tolerance Codes .................................................................................................................. 41
Model Abbreviations ...................................................................................................................... 41
Quick Reference List .................................................................................................................... 42
SERVICE PARTS LIST .................................................................................................................... 43
CIRCUITRY BLOCK DIAGRAMS ..................................................................................................... 54
Power Supply ............................................................................................................................... 54
Video/Color Signal Path ................................................................................................................ 55
Sound Circuit ................................................................................................................................ 56
Deflection and High Voltage .......................................................................................................... 56
Protect Circuitry ............................................................................................................................ 57
Convergence Circuitry ................................................................................................................... 57
Control Circuitry ............................................................................................................................ 58
SCHEMATIC DIAGRAMS
PCB LAYOUT DIAGRAMS
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MODELS: VS-45609 / VS-50609 / VS-55609 / VS-60609 / VS-60719 / VS-70709
Page 5
INTRODUCTION
This service manual provides service instructions for PTV Models VS-45609, VS-50609, VS-55609 and VS-60609
which use the VZ9 chassis, and PTV Model VS-60719 and VS-70709 which use the VZ9+ chassis. Service personnel
should read this manual thoroughly before servicing these 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.

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