Service manual

1
14GT15
14GT20
SHARP CORPORATION
SERVICE MANUAL
14GT15
14GT20
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.
FEATURE
Ë
Favorite Channel
Ë
Full Auto Channel Preset and Auto Channel Skip
Ë
100-CH Program Memory
Ë
CATV(Hyper Band) Ready <Used Frequency Synthesizer
Tuner>
Ë
AVL(Sound Keeper) Function
Ë
Black Stretch Circuit
Ë
On Timer/Sleep Timer/Reminder Timer
Ë
Blue Back Noise Mute
Ë
Front AV-In (14GT-20 Only)
Ë
Rear AV-In/Out Terminals
Ë
Colour Comb Filter (NTSC Only)
Ë
High Contrast Picture
Ë
Hotel Mode
Ë
Front Headphone JACK (14GT-20 Only)
Ë
English / Thai OSD
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.
» SPECIFICATIONS ...........................................2
» IMPORTANT SERVICE NOTES ..................... 3
» ADJUSTMENT PRECAUTIONS ..................... 4
» TROUBLE SHOOTING TABLE..................... 27
» SOLID STATE DEVICE BASE DIAGRAM .... 31
» CHASSIS LAYOUT ........................................32
» WAVEFORMS................................................34
» DESCRIPTION OF SCHEMATIC DIAGRAM . 35
» SCHEMATIC DIAGRAM
INFRARED REMOTE CONTROL UNIT .. 36
TUNER .....................................................37
14GT15, 14GT20 HOTEL MODE
APPLICATION ..........................................38
HEAD PHONE Unit and
CRT Socket Unit ...................................... 39
MAIN Unit .................................................40
» BLOCK DIAGRAM .........................................44
» PRINTED WIRING BOARD ASSEMBLIES .. 49
» REPLACEMENT PARTS LIST
ELECTRICAL PARTS .............................. 54
MISCELLANEOUS PARTS...................... 58
SUPPLIED ACCESSORIES .................... 58
PACKING PARTS .................................... 58
CABINET PARTS .................................... 59
Page Page
CONTENTS
COLOUR TELEVISION
Chassis No. UA-1
(14GT15) (14GT20)
S30Y114GT15//

Summary of content (54 pages)