1
14GT-16C/21C
20GT-21C/21GT-21C
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.
SERVICE MANUAL
S52i714GT-16C
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.
MODELS
14GT-16C
14GT-21C
20GT-21C
21GT-21C
SHARP CORPORATION
COLOUR TELEVISION
Chassis No. GA-1
Page
CONTENTS
»SPECIFICATIONS .............................................2
»IMPORTANT SERVICE NOTES ........................2
»ADJUSTMENT PRECAUTIONS........................3
»MEMORY MAP ................................................11
»GA1 HOTEL MODE APPLICATION ................15
»TROUBLE SHOOTING TABLE ........................15
»SOLID STATE DEVICE BASE DIAGRAM .......18
»WAVEFORMS..................................................19
»CHASSIS LAYOUT ..........................................22
»BLOCK DIAGRAM ...........................................26
»DESCRIPTION OF SCHEMATIC DIAGRAM ..35
»SCHEMATIC DIAGRAM
ËMAIN UNIT ...................................................36
ËCRT UNIT.....................................................44
Page
ËHEADPHONE UNIT .....................................45
ËMONO BILINGUAL UNIT.............................46
»PRINTED WIRING BOARD ASSEMBLIES.....48
»REPLACEMENT PARTS LIST
ËELECTRICAL PARTS
MAIN UNIT ...................................................54
CRT UNIT.....................................................58
HEADPHONE UNIT .....................................59
MONO BILINGUAL UNIT.............................59
ËSUPPLIED ACCESSORIES ........................60
ËPACKING PARTS .........................................60
ËCABINET PARTS .........................................60
»PACKING OFTHE SET ...................................62
FEATURES
ËPAL B/G
ËNTSC(AV Thru)
ËFull Auto Channel Preset and Auto Channel Skip
Ë100 CH Program Memory
ËCATV (Hyper Band) Ready
ËAVL (Sound Keeper) Function
ËHigh Contrast Picture (Black Stretch Circuit)
ËON Timer/Sleep Timer/Reminder Timer
ËFavourite Channel
ËBlue Back Noise Mute
ËFront AV In (Front AV Priority) (Except 14GT-16C)
ËRear AV In/Out Terminals
ËColour-Comb Filter (NTSC AV In)
ËHotel Mode
ËFront Headphone Jack (Except 14GT-16C)
ËEnglish/Thai Language OSD
ËMono Bilingual (20GT-21C & 21GT-21C Only)
14GT-16C 14GT-21C
20GT-21C 21GT-21C
