MITSUBISHI WS65909 Service Manual

Cover page of MITSUBISHI WS65909 Service Manual

Service Manual for MITSUBISHI WS65909, downloadable as a PDF file.

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CAUTION:
Before servicing this chassis, it is important that the service person read the "SA.ETY PRECAUTIONS" and
"PRODUCT SA.ETY 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
MITSUBISHIELECTRIC Service
Manual
PROJECTION TELEVISION
V19 / V19+ CHASSIS
SPECI.ICATIONS
Power Input
: AC 120V, 60Hz
Power Usage
: 300W
.requency
: VH. 54 ~ 470MHz
Range
UH. 470 ~ 806MHz
Antenna Input
: VH./UH. 75 unbalanced
2 - NTSC
1 - ATV/QAM
CRT Size
: [7 inches]
: [9 inches] WS-73909 only
High Voltage
: 32.0kV (at 0A)
Speaker
: [WS-55859]]
5" round type, full range 2 pcs. (8 10W)
: [WS-65869]
6" round type, full range 2 pcs. (8 10W)
: [WS-55909 / WS-65909 / WS-739090]
5" round type, full range 2 pcs. (8 10W)
2" round type, tweeter 2 pcs. (8 10W)
Weight
: [WS-55859 250 lbs
: [WS-55909] 256 lbs
: [WS-65869] 326 lbs
: [WS-65909] 348 lbs
: [WS-73909] 405 lbs
Cabinet
: [Model] (H)x(W)x(D)
Dimensions
: [WS-55859] 50.3"x50.6"x27.8"
: [WS-55909] 51.4"x46.9"x28.1"
: [WS-65869] 61.9"x59"x28.1"
: [WS-65909] 61.5"x58.2"x28.3"
: [WS-73909] 65.7"x65.2"x29.8"
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
: 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 (BNC)
Pr, Pb: 700mV 75
H, V: 3.0Vp-p 75
: VGA / R,G,B,V,H (15 pin D)
Output Level
: VIDEO OUT JACK (RCA Type)
1.0Vp-p 75 unbalanced
: AUDIO OUT JACK (RCA Type)
-4.7dBm 4.7k unbalanced
Digital Interface
: IEEE-1394 I/O Jacks
: AC-3 Digtal Audio Output
V19
MODELS
WS-55859
WS-65869
V19+
MODELS
WS-55909
WS-65909
WS-73909
WS-65869
background image
CAUTION:
Before servicing this chassis, it is important that the service person read the "SA.ETY PRECAUTIONS" and
"PRODUCT SA.ETY 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
MITSUBISHIELECTRIC Service
Manual
PROJECTION TELEVISION
V19 / V19+ CHASSIS
SPECI.ICATIONS
Power Input
: AC 120V, 60Hz
Power Usage
: 300W
.requency
: VH. 54 ~ 470MHz
Range
UH. 470 ~ 806MHz
Antenna Input
: VH./UH. 75 unbalanced
2 - NTSC
1 - ATV/QAM
CRT Size
: [7 inches]
: [9 inches] WS-73909 only
High Voltage
: 32.0kV (at 0A)
Speaker
: [WS-55859]]
5" round type, full range 2 pcs. (8 10W)
: [WS-65869]
6" round type, full range 2 pcs. (8 10W)
: [WS-55909 / WS-65909 / WS-739090]
5" round type, full range 2 pcs. (8 10W)
2" round type, tweeter 2 pcs. (8 10W)
Weight
: [WS-55859 250 lbs
: [WS-55909] 256 lbs
: [WS-65869] 326 lbs
: [WS-65909] 348 lbs
: [WS-73909] 405 lbs
Cabinet
: [Model] (H)x(W)x(D)
Dimensions
: [WS-55859] 50.3"x50.6"x27.8"
: [WS-55909] 51.4"x46.9"x28.1"
: [WS-65869] 61.9"x59"x28.1"
: [WS-65909] 61.5"x58.2"x28.3"
: [WS-73909] 65.7"x65.2"x29.8"
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
: 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 (BNC)
Pr, Pb: 700mV 75
H, V: 3.0Vp-p 75
: VGA / R,G,B,V,H (15 pin D)
Output Level
: VIDEO OUT JACK (RCA Type)
1.0Vp-p 75 unbalanced
: AUDIO OUT JACK (RCA Type)
-4.7dBm 4.7k unbalanced
Digital Interface
: IEEE-1394 I/O Jacks
: AC-3 Digtal Audio Output
V19
MODELS
WS-55859
WS-65869
V19+
MODELS
WS-55909
WS-65909
WS-73909
WS-65869
background image
background image
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
Page 3
INTRODUCTION ................................................................................................................................5
PRODUCT SA.ETY NOTICE ............................................................................................................. 5
SA.ETY PRECAUTIONS ................................................................................................................... 6
DISASSEMBLY
Cabinet Disassembly (.ront View) .............................................................................................. 7
WS-55859.............................................................................................................................. 7
WS-65869.............................................................................................................................. 8
WS-55909 / WS-65909 / WS-73909 ...................................................................................... 9
Cabinet Disassembly (Rear View) ............................................................................................. 10
WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909 ............................................. 10
SERVICING THE LENTICULAR SCREEN AND .RESNEL LENS
Lenticular Screen and .resnel Lens Removal......................................................................... 11
WS-55859............................................................................................................................ 11
WS-55909 / WS-65869 / WS-65909 / WS-73909 ................................................................. 12
Lenticular Screen and .resnel Lens Installation .................................................................... 13
SERVICING THE DIAMONDSHIELDSTM r
DiamondShield TM Removal & Installation ...................................................................................... 14
SERVICING PCBs
Chassis Removal .......................................................................................................................... 15
PCB Locations.............................................................................................................................. 16
Main Components Location........................................................................................................... 16
DM Module Main Components Location ........................................................................................ 17
CRT REPLACEMENT
CRT Removal ................................................................................................................................18
CRT Installation ............................................................................................................................ 19
ELECTRICAL ADJUSTMENTS
Test Equipment ............................................................................................................................. 21
Initial Setup ................................................................................................................................... 22
LED Indicator Diagnostics ............................................................................................................. 23
Remote Control Operational Mode ................................................................................................ 23
Circuit Adjustment Mode............................................................................................................... 24
On Screen Display Position Mode ................................................................................................ 25
Convergence Adjustment Mode ..................................................................................................... 25
E2PROM Replacement ................................................................................................................. 27
Adjustment Items List ................................................................................................................... 27
Adjustment Test Points ................................................................................................................. 30
Adjustment Procedures ................................................................................................................ 31
Audio Circuit ........................................................................................................................ 31
High Voltage Regulation ....................................................................................................... 32
Main/Sub Y Level ................................................................................................................. 32
Side by Side Sub Picture Tint .............................................................................................. 33
Side by Side Sub Picture Color ............................................................................................ 33
CRT Cutoff ........................................................................................................................... 34
White Balance (NTSC) ......................................................................................................... 34
White Balance (HD) ............................................................................................................. 35
Cb, Cr Offset ........................................................................................................................ 35
CONTENTS
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MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
Page 4
Black Level .......................................................................................................................... 36
Sub Contrast ....................................................................................................................... 36
Dynamic .ocus Preset ........................................................................................................ 37
Lens .ocus .......................................................................................................................... 37
Electrostatic .ocus & Alignment Magnet Adjustment .......................................................... 38
On Screen Display Character Position ................................................................................. 38
Deflection/Convergence Geometry Presets .......................................................................... 39
Deflection Circuit Geometry Adjustments ............................................................................. 40
Convergence Circuit Geometry Adjustments ........................................................................ 41
Centering and Static Convergence ....................................................................................... 42
Coarse Convergence Adjustments ....................................................................................... 43
.ine Convergence Adjustments ............................................................................................ 44
CHIP PARTS REPLACEMENT ......................................................................................................... 45
REPLACEMENT PARTS
Parts Ordering .............................................................................................................................. 46
Critical and Warranty Parts Designation........................................................................................ 46
Parts Tolerance Codes .................................................................................................................. 46
Quick Reference List .................................................................................................................... 47
Service Parts List.......................................................................................................................... 48
Screen Parts List .......................................................................................................................... 59
CIRCUITRY BLOCK DIAGRAMS
Standby Supplies Regulator .......................................................................................................... 61
Switched Supplies Regulator ........................................................................................................ 62
DM Power Supply ......................................................................................................................... 63
Video / Color A/V Switch Circuit ................................................................................................... 64
Video / Color Signal Path .............................................................................................................. 65
Sync Signal Path .......................................................................................................................... 66
Deflection / HV.............................................................................................................................. 67
X-Ray Protect ............................................................................................................................... 67
Sound Circuit ................................................................................................................................68
Convergence ................................................................................................................................. 69
Control Circuitry ............................................................................................................................ 70
Section 2 .... Schematic Diagrams
SCHEMATIC DIAGRAMS
Overall Block Diagram ................................................................................................................... 1
PCB-MAIN ..................................................................................................................................... 2
PCB-POWER................................................................................................................................. 3
PCB-TERMINAL ............................................................................................................................ 4
PCB-SIGNAL-1 (MICRO)................................................................................................................. 5
PCB-SIGNAL-2 (AV I/O) .................................................................................................................. 6
PCB-SIGNAL-3 (VIDEO / CHROMA) ............................................................................................... 7
PCB-3DYC ..................................................................................................................................... 8
PCBs-CONV GEN / JUNGLE ..........................................................................................................9
PCBs - CRT / CONTROL / SVM / DB. / DM POWER .................................................................. 10
PCB-2HDW-1 ............................................................................................................................... 11
PCB-2HDW-2) .............................................................................................................................. 12
PCB-2HDW-3 ............................................................................................................................... 13
PCB LAYOUT DIAGRAMS ............................................................................................................... 14
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Page 5
MODELS: WS-55859 / WS-55909 / WS-65869 / WS-65909 / WS-73909
INTRODUCTION
This service manual provides service instructions for PTV Models WS-55859 and WS-65869 which use the V19
chassis, and PTV Models WS-55909, WS-65909 and WS-73909 which use the V19+ 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 .resnel 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 SA.ETY 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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