Sharp 29WF200, Service Manual

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29WF200
29WF500
SHARP CORPORATION
SERVICE MANUAL
29WF200
29WF500
MODELS
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
FEATURES
Ë
PAL-B/G, NTSC (AV only) (29WF200)
Ë
World Multi 28 System (29WF500)
Ë
100-CH Program Memory
Ë
AV Mode (Standard / Dynamic / Soft)
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CATV Hyper Band Ready
Ë
PAL/NTSC 3 Line Comb Filter
Ë
On/Off Velocity Modulation
Ë
Black Stretch Circuit
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Picture Noise Reduction
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White Temp. Select
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Aperture Control
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S-BOOSTER
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OSD-Language (English ONLY)
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On/Off Reminder Timer
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Power Save Mode
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Rear AV-IN 1 & 2, S-Video In, AV Output (Monitor Out),
Headphone and Front AV-IN 3
Ë
3.5L Speaker Box
Ë
AFT
Ë
Component Input Terminal
Ë
AV Stereo (29WF200)
Ë
NICAM/A2 (29WF500)
WARNING
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power
receptacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user – serviceable
parts inside. Refer servicing to qualified service personnel.
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SPECIFICATIONS ........................................... 2
»
IMPORTANT SERVICE NOTES ...................... 2
»
ADJUSTMENT PRECAUTIONS ..................... 3
»
TROUBLE SHOOTING FLOWCHART .......... 15
»
SOLID STATE DEVICE BASE DIAGRAM ..... 19
»
WAVEFORMS ............................................... 20
»
CHASSIS LAYOUT ........................................ 22
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BLOCK DIAGRAM ......................................... 24
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DESCRIPTION OF SCHEMATIC DIAGRAM .. 26
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SCHEMATIC DIAGRAM
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CRT UNIT ................................................. 27
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MAIN UNIT ............................................... 28
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AV COMB UNIT ........................................ 36
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S-CONTROL UNIT ................................... 40
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FRONT UNIT ............................................ 44
»
PRINTED WIRING BOARD ASSEMBLIES ... 48
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REPLACEMENT PARTS LIST
Ë
ELECTRICAL PARTS ............................... 56
Ë
MISCELLANEOUS PARTS ...................... 66
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SUPPLIED ACCESSORIES ..................... 66
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PACKING PARTS ..................................... 66
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CABINET PARTS ..................................... 66
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PACKING OF THE SET ................................ 67
Page Page
CONTENTS
COLOUR TELEVISION
Chassis No. GB-1
S14N129WF200/ 0//
29WF200 29WF500