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14GT-16C
20GT-21C
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.
Ë PAL B/G
Ë NTSC(AV Thru)
Ë Full Auto Channel Preset and Auto Channel Skip
Ë 100 CH Program Memory
Ë CATV (Hyper Band) Ready
Ë AVL (Sound Keeper) Function
Ë High Contrast Picture (Black Stretch Circuit)
Ë ON Timer/Sleep Timer/Reminder Timer
Ë Favourite Channel
» 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
Ë MAIN UNIT ................................................... 36
Ë CRT UNIT ..................................................... 44
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
14GT-21C
21GT-21C
FEATURES
CONTENTS
Page
WARNING
SHARP CORPORATION
COLOUR TELEVISION
Chassis No. GA-1
14GT-16C
14GT-21C
20GT-21C
21GT-21C
MODELS
Ë Blue Back Noise Mute
Ë Front AV In (Front AV Priority) (Except 14GT-16C)
Ë Rear AV In/Out Terminals
Ë Colour-Comb Filter (NTSC AV In)
Ë Hotel Mode
Ë Front Headphone Jack (Except 14GT-16C)
Ë English/Thai Language OSD
Ë Mono Bilingual (20GT-21C & 21GT-21C Only)
Ë HEADPHONE UNIT ..................................... 45
Ë MONO BILINGUAL UNIT ............................. 46
» PRINTED WIRING BOARD ASSEMBLIES ..... 48
» REPLACEMENT PARTS LIST
Ë ELECTRICAL PARTS
MAIN UNIT ................................................... 54
CRT UNIT ..................................................... 58
HEADPHONE UNIT ..................................... 59
MONO BILINGUAL UNIT ............................. 59
Ë SUPPLIED ACCESSORIES ........................ 60
Ë PACKING PARTS ......................................... 60
Ë CABINET PARTS ......................................... 60
» PACKING OF THE SET ................................... 62
1
14GT-16C/21C
20GT-21C/21GT-21C
S52i714GT-16C
Page
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Table of Contents
Related Manuals for Sharp 14GT-16C
Summary of Contents for Sharp 14GT-16C
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Page 1: Service Manual
FEATURES Ë PAL B/G Ë Blue Back Noise Mute Ë NTSC(AV Thru) Ë Front AV In (Front AV Priority) (Except 14GT-16C) Ë Full Auto Channel Preset and Auto Channel Skip Ë Rear AV In/Out Terminals Ë 100 CH Program Memory Ë... -
Page 2: 14Gt-16C
14GT-16C/21C 14GT-16C/21C 20GT-21C/21GT-21C 20GT-21C/21GT-21C MONO BILINGUAL UNIT:20GT-21C/21GT-21C 46~47... -
Page 3: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C CRT UNIT : 14GT-16C/21C CRT UNIT : 20GT-21C... -
Page 4: 14Gt-21C
14GT-16C/21C 20GT-21C/21GT-21C CRT UNIT : 21GT-21C HEADPHONE UNIT : 14GT-21C/20GT-21C/21GT-21C... -
Page 5: Chassis Layout
14GT-16C/21C 20GT-21C/21GT-21C MODEL 14GT-16C CHASSIS LAYOUT... -
Page 6: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C MODEL 14GT-21C CHASSIS LAYOUT... -
Page 7: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C MODEL 20GT-21C CHASSIS LAYOUT... -
Page 8: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C MODEL 21GT-21C CHASSIS LAYOUT... -
Page 9: 14Gt-16C
14GT-16C/21C 14GT-16C/21C 20GT-21C/21GT-21C 20GT-21C/21GT-21C BLOCK DAIAGRAM MAIN UNIT (14GT-16C) 26~27... -
Page 10: 14Gt-16C
14GT-16C/21C 14GT-16C/21C 20GT-21C/21GT-21C 20GT-21C/21GT-21C BLOCK DAIAGRAM MAIN UNIT (14GT-21C) 28~29... -
Page 11: Block Diagram
14GT-16C/21C 14GT-16C/21C 20GT-21C/21GT-21C 20GT-21C/21GT-21C BLOCK DIAGRAM MAIN UNIT (20GT-21C/21GT-21C) 30~31... -
Page 12: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C BLOCK DIAGRAM CRT UNIT BLOCK DIAGRAM : 14GT-16C/21C CRT UNIT BLOCK DIAGRAM : 20GT-21C... -
Page 13: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C CRT UNIT BLOCK DIAGRAM : 21GT-21C... -
Page 14: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C BLOCK DIAGRAM HEADPHONE UNIT BLOCK DIAGRAM MONO BILINGUAL UNIT BLOCK DIAGRAM... -
Page 15: 14Gt-16C
14GT-16C/21C 14GT-16C/21C 20GT-21C/21GT-21C 20GT-21C/21GT-21C MAIN UNIT : 21GT-21C 42~43... -
Page 16: Printed Wiring Board Assemblies
(NOT REPLACEMENT ITEM) D601 RH-DX0048GEZZ R DX0048GE D602 VHD1SS244//-1 R 1SS244 D603 RH-EX0667GEZZ R Zener Diode, 27V PWB-A DUNTKA541WED1 - Main Unit(14GT-16C) — D604 RH-DX0048GEZZ R DX0048GE PWB-A DUNTKA541WED0 - Main Unit(14GT-21C) — D606 RH-DX0131CEZZ R DX0131CE PWB-A DUNTKA541WEC5 - Main Unit(20GT-21C) —... -
Page 17: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C Ref. No. Part No. Description Code Ref. No. Part No. Description Code C301 VCEA0A1CW477M R 470 16V Electrolytic D752 RH-DX0131CEZZ R DX0131CE C304 VCEA0A1CW106M R 10 16V Electrolytic D754 RH-EX0616GEZZ R Zener Diode, 5.6V C306 VCEA0A1CW106M R 10... -
Page 18: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C Ref. No. Part No. Description Code Ref. No. Part No. Description Code C704 RC-KZ0029CEZZ R 0.01 250V Ceramic RJ43 VRS-CY1JF000J 1/16W Metal Oxide C705 RC-EZ1046CEZZ R 220 400V Electrolytic RJ46 VRS-CY1JF000J 1/16W Metal Oxide (20GT-21C/21GT-21C) RJ48 VRS-CY1JF000J 1/16W Metal Oxide... -
Page 19: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C Ref. No. Part No. Description Code Ref. No. Part No. Description Code R305 VRS-CY1JF274J R 270k 1/16W Metal Oxide R605 VRD-RM2HD823J R 82k 1/2W Carbon R310 VRS-CY1JF473J R 47k 1/16W Metal Oxide (20GT-21C/21GT-21C) R311 VRS-CY1JF473J R 47k 1/16W Metal Oxide... -
Page 20: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C Ref. No. Part No. Description Code Ref. No. Part No. Description Code P303 QPLGN0561CEZZ R Plug, 4Pin R806 VRS-CY1JF123J R 12k 1/16W Metal Oxide (20GT-21C/21GT-21C) R807 VRS-CY1JF103J R 10k 1/16W Metal Oxide P601 QPLGN0660CEZZ R Plug, 6Pin R808... -
Page 21: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C Ref. No. Part No. Description Code Ref. No. Part No. Description Code R896 VRS-CY1JF471J R 470 1/16W Metal Oxide C3313 VCCCCY1HH221J R 220p 50V Ceramic (21GT-21C) (20GT-21C/21GT-21C) R898 VRS-CY1JF471J R 470 1/16W Metal Oxide C3314 VCEA0A1CW107M R 100... -
Page 22: 14Gt-16C
TLABM0176KJZZ - Model Label(20GT-21C) — TLABM0177KJZZ - Model Labe(21GT-21C) — MISCELLANEOUS PARTS TLABMA003WJZZ - Model Labe(14GT-21C) — TLABMA004WJZZ - Model Labe(14GT-16C) — P3300 QPLGZ0810CEZZ R Plug, 8Pin TLABN0148CEZZ - Serial Label — (20GT-21C/21GT-21C) (14GT-16C/14GT-21C) P3301 QPLGZ0810CEZZ R Plug, 8Pin TLABN0148KJZZ - Serial Label —... -
Page 23: 14Gt-16C
14GT-16C/21C 20GT-21C/21GT-21C Ref. No. Part No. Description Code Ref. No. Part No. Description Code CABINET PARTS LOCATION CABINET PARTS LOCATION 1-1 1 1-2 1-3 1-4 1-6 1-5 21GT-21C 14GT-16C 1-6 1-5 14GT-21C 1-1 1 1-2 1-3 20GT-21C... -
Page 24: 14Gt-16C
14GT-16C/21C 14GT-16C/21C 20GT-21C/21GT-21C 20GT-21C/21GT-21C PRINTED WIRING BOARD ASSEMBLIES PWB-A: MAIN UNIT (Component Side) 48~49...