SERVICE MANUAL
COLOUR TALEVISION
Chassis No. GA-4
MODEL
In the interests of user-safety (Required by safety regulaton in some countries) the set should be restored to its original condition
and only part identical to those specified should be used.
PAL B/G System
Full Auto Channel Preset and Auto Channel Skip
100-CH Program Memory
CATV (Hyper Band) Ready
<Used Frequency Synthesizer Tuner>
Black Stretch Circuit
On Timer / Off Timer / Reminder Timer
Blue Back Noise Mute
Front AV IN & Rear AV IN / OUT Terminals
Front Headphone Jack
Aperture Control Circuit
FEATURE
Auto Fine Tuning
Colour Comp Filter (NTSC Only)
High Contrast Picture
Hotel Mode
2 Language OSD
(English / Thai )
White Temperature Select
Component In
Surround Sound Effect
<With Bass / Treble / Balance>
AV Stereo
SPECIFICATIONS...................................................
IMPORTANT SERVICE NOTES..............................
ADJUSTMENT PRECAUTIONS..............................
TROUBLE SHOOTING FLOWCHART....................
SOLID STATE DEVICE BASE DIAGRAM...............
WAVEFROMS.........................................................
CHASSIS LAYOUT..................................................
BLOCK DIAGRAMS
MAIN UNIT.......................................................
CRT UNIT.........................................................
HEADPHONE UNIT.........................................
S-CONTROL UNIT...........................................
DESCRIPTION OF SCHEMATIC DIAGRAM.........
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SCHEMATIC DIAGRAM
MAIN UNIT............................................
CRT UNIT..............................................
HEADPHONE UNIT...............................
S-CONTROL UNIT................................
PRITED WIRING BOAD ASSEMBLIES.......
REPLACEMENT PARTS LIST
ELECTRICAL PARTS............................
MISCELLANEOUS PARTS...................
ACCESSORIES PARTS.......................
CABINET PARTS..................................
PACKING PARTS..................................
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CONTENTS
WARNING
The chassis in this receive is partially hot. Use an isolation transformer between the line cord plug and
power receptable, when servicing this chissis. To prevent eletriv shock, do not remove cover. No user-
servieable parts inside. Refer servicing to qualified service personnel.
SHARP MENUFACTURING (THAILAND) CO.,LTD.
21F-PA330
I
Summary of Contents for 21F-PA330I
Page 17: ...CHASSIS LAYOUT 17 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Page 18: ...BLOCK DIAGRAM PWB A MAIN UNIT 18 ...
Page 20: ...20 PWB E SOUND CONTROL UNIT A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Page 22: ...PWB A MAIN UNIT SCHEMATIC DIAGRAM 22 ...
Page 23: ...PWB B CRT UNIT 23 PWB C HEADPHONE UNIT A C B D 1 2 3 4 5 6 7 8 9 A C B D 1 2 3 4 5 6 7 8 9 ...
Page 24: ...24 PWB E SOUND CONTROL UNIT A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Page 25: ...PWB A MAIN UNIT COMPONENT SIDE PRINTED WIRING BOARD ASSEMBLIES 25 ...
Page 28: ...28 PWB E SOUND CONTROL UNIT A C B D 1 2 3 4 5 6 7 8 9 10 COMPONENT SIDE CHIP PART SIDE ...
