File name SHARP 21V-FR75M ch.GA-4M.pdf21JF2-RU/GA/SA/SF/SS
SERVICE MANUAL
No. S95O521JF2-RU
COLOUR TELEVISION Chassis No. GA-4M
MODELS
FEATURES
Multi 18 Systems Full Auto Channel Preset and Auto Channel Skip 100-CH Program Memory CATV (Hyper Band) Ready Black Stretch Circuit On Timer / Off Timer / Reminder Timer Blue Back Function Front AV IN & Rear AV IN / OUT Terminals Front Headphone Jack Aperture Control Circuit Auto Fine Tuning NTSC Colour Comb Filter (AV THRU) High Contrast Picture Hotel Mode White Temperature Select
21JF2-RU 21JF2-GA 21JF2-SA 21JF2-SF 21JF2-SS
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.
Multi Languages OSD (ENG / CHI / FRE / MAL / ARA / RUS) for Model 21JF2-SF / SS Only. (ENG / CHI / FRE / MAL / ARA) for Model 21JF2-GA / SA Only. (ENG / RUS) for Model 21JF2-RU Only. MONO
CONTENTS
CHAPTER 1. SPECIFICATIONS [1] SPECIFICATIONS ... 1-1 . CHAPTER 2. IMPORTANT SERVICE NOTES [1] IMPORTANT SERVICE NOTES ... 2-1 . CHAPTER 3. ADJUSTMENT PRECAUTIONS [1] ADJUSTMENT PRECAUTIONS ... 3-1 . [2] ADJUSTMENT ... 3-14 . CHAPTER 4. MEMORY MAP [1] MEMORY MAP ... 4-1 . CHAPTER 5. TROUBLE SHOOTING FLOWCHART [1] TROUBLE SHOOTING FLOWCHART ... 5-1 . CHAPTER 6. SOLID STATE DEVICE BASE DIAGRAM [1] SOLID STATE DEVICE BASE DIAGRAM ... 6-1 CHAPTER 7. CHASSIS LAYOUT [1] CHASSIS LAYOUT ... 7-1 . CHAPTER 8. BLOCK DIAGRAM [1] BLOCK DIAGRAM: CRT UNIT ... 8-1 . [2] [3] BLOCK DIAGRAM: HEADPHONE UNIT ...8-1 BLOCK DIAGRAM: MAIN UNIT ...8-2
CHAPTER 9. DESCRIPTION OF SCHEMATIC DIAGRAM [1] DESCRIPTION OF SCHEMATIC DIAGRAM...9-1 CHAPTER 10. WAVEFORMS [1] WAVEFORMS ...10-1 CHAPTER 11. SCHEMATIC DIAGRAM [1] SCHEMATIC DIAGRAM: MAIN UNIT... 11-1 [2] SCHEMATIC DIAGRAM: CRT UNIT ... 11-7 [3] SCHEMATIC DIAGRAM: HEADPHONE UNIT ... 11-7 CHAPTER 12. PRINTED WIRING BOARD ASSEMBLIES [1] PWB-B: CRT UNIT ...12-1 [2] PWB-C: HEADPHONE UNIT ...12-1 [3] PWB-A: MAIN UNIT ...12-2 Parts Guide
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.
SHARP CORPORATION
21JF2-RU/GA/SA/SF/SS
CHAPTER 1. SPECIFICATIONS
21JF2-RU/GA/SA/SF/SS
Service Manual
[1] SPECIFICATIONS
Convergence ... | 