Sharp Sharp_Bulletins_4 free download

File name Sharp bulletin 66Cs03H-024.pdf

CTV980602 Month of Issue : June 1998 Classification : White TELEVISION TECHNICAL BULLETIN Page 1 of 1 MODELS 51CS03H 59CS05H 59CSD8H 51CS05H 66CS03H 66CSD8H 59CS03H 66CS05H SYMPTOM Intermittent vertical linearity problems or partial loss of vertical scan. CAUSE ACTION Failure of components in the vertical output stage. Replace the following components in the vertical output stage:C506 and C507. D501, D502, D507 and D512 Q507, Q508 and Q512 Use the part numbers given below for these parts. Note that there are no part numbers in the service manual for C506 and C507. These are both 22nF SMD capacitors and should be sourced locally. REF NO D501 D502 D507 D512 Q507 Q508 Q512 DESCRIPTION Zener Diode, 18V Zener Diode, 18V Diode, 1N4934 Diode, 1N4934 Transistor Transistor Transistor PART NUMBER RH-EX0558BMZZ RH-EX0558BMZZ RH-DX0504BMZZ RH-DX0504BMZZ RH-TX0147BMZZ RH-TX0151BMZZ RH-TX0150BMZZ PRICE CODE AA AA AA AA AD AD AC Originator $Y: Sharp Electronics (UK) Limited Supervisor CE Technical Support Group Approval Date / / Reference 98269HT Red - Carry out on all units White - Carry out as required Yellow - Carry out as required and whenever unit comes in for service

File name Sharp bulletin 66cs03h-025.pdf

CTV980603 Month of Issue : June 1998 Classification : White TELEVISION TECHNICAL BULLETIN Page 1 of 1 MODELS REASON ACTION 51CS03H 59CS03H 66CS03H From version 4 of this chassis, various changes have been made to the circuit. When servicing chassis versions 4 or greater ( see diagram below) use the 51CS05H ( Part number SEKL51CS05H/1 ) or the 59/66CS05H ( Part number SEKT66CS05H/2 ) service manuals. Changes to the 51CS03H, 59CS03H and 66CS03H circuitry are :1. An audio mute circuit now incorporated into the chassis. 2. R631 and R632 have been added in series to the vertical +/-13V supplies. For the 59CS03H and 66CS03H only R628, D616 and D621 have been added to the +45V supply line from the line output transformer. Originator $Y: Sharp Electronics (UK) Limited Supervisor CE Technical Support Group / / Reference AM 110398 Red - Carry out on all units Approval Date White - Carry out as required Yellow - Carry out as required and whenever unit comes in for service

File name Sharp bulletin 66cs03h-029.pdf

CTV970207 Date of Issue : Classification : 10/02/97 White Page 1 of 1 TELEVISION TECHNICAL BULLETIN MODELS 51CS03H 59CS03H 66CS03H SYMPTOM No or intermittent vertical output. CAUSE ACTION Intermittent solder joint on L501. Resolder joint on L501 as shown in the diagram below. Points to resolder on L501 Sharp Electronics (UK) Limited CE Technical Support Group Originator White - Carry out as required $Y: Supervisor 3*- Approval Date 10/02/97 UK70200X Red - Carry out on all units Yellow - Carry out as required and whenever unit comes in for service

File name Sharp bulletin 66cs05h-014.pdf

CTV981102 TELEVISION TECHNICAL BULLETIN Month of Issue: November 1998 Classification: Yellow Page 1 of 1 MODELS 51CS03H 59CSD8H 51CS05H 66CS03H 59CS03H 66CS05H 59CS05H 66CSD8H SYMPTOM Intermittent failure of the line output transistor, the reciever may not start up, or start up is intermittent. CAUSE ACTION Dry joint(s) on scanning coil PWB. If any of the above models come in for service, unclip the small PWB on the scanning coils and resolder the connections. Also resolder the scanning coil connections if a chassis has been exchanged for any of the above symptoms. Originator AvW Supervisor Sharp Electronics (UK) Limited Approval Date / / Reference JC201098 White ­ Carry out as required, Yellow ­ Carry out as required and whenever the unit comes in for service, Red ­ Carry out on all units

File name Sharp bulletin 66cs05h-017.pdf

CTV970204 Date of Issue : Classification : 10/02/97 White Page 1 of 1 TELEVISION TECHNICAL BULLETIN MODELS 51CS03H 59CS03H 66CS03H SYMPTOM If used in a hot environment, the picture can become saturated with red, green or blue blanking lines. CAUSE Build up of flux around transistors on the CRT Socket PWB, causing tracking between them. 1. 2. 3. 4. Remove SMD transistors Q870, Q871 and Q872. Clean the exposed areas with a bristle brush impregnated with alcohol. Clean the SMD transistors with alcohol. Replace the transistors. ACTION Sharp Electronics (UK) Limited CE Technical Support Group Originator White - Carry out as required $Y: Supervisor 3*- Approval Date 10/02/97 GE64802X Red - Carry out on all units Yellow - Carry out as required and whenever unit comes in for service

File name Sharp bulletin 66cs05h-028.pdf

CTV990113 TELEVISION TECHNICAL BULLETIN Month of Issue: January 1998 Classification: White Page 1 of 2 MODELS 51CS03H 59CSD8H 51CS05H 66CS03H 59CS03H 66CS05H 59CS05H 66CSD8H Symptom Dead no sound or vision) Q701 & Q601 failed Possible Remedy * Q601 failed Q601 s/c and failure of audio o/p stage No voltage at Q701 drain NICAM LED on or flashing (aerial disconnected) D609, D610, D720, D718, Q702, Q703, C601, C604, C619, C714, C708, R706, R707, R720 and inspect scan coils and scan coil socket for bad connections. D609, D610, C601, C604, C619 and inspect scan coils/scan coil socket for bad connections. Q601 failed due to missing - 16V rail (supply to o/p stage). Leave Q601 out of circuit until you have confirmed that both the +16V and the -16V rails are correct. Technical Bulletin CTV970201 (Issued Feb 97) See flowchart on page 2 HT rail present, no line drive, NICAM LED switches on for Check R611 and IC201 3-6 seconds then goes off (ariel disconnected) Keeps switching to standby Check audio output stage for a short circuit HT rail missing-unsolder pin 2 of 0V Power supply not running (check CTV is not in LOPTX and measure the HT rail standby mode 20V-40V Short on one of the secondary LT supply rails e.g. audio o/p stage 110V-150V Short circuit on line o/p stage Line drive pulsating IC401 not communicating with micro Line drive pulsating and R628 (R634 in later Q704 (low standby/sound 5V rail) models) burning Slow start up i.e. more than 3-6 seconds for C714 (please ensure that this is replaced with the line oscillator to start depending on model specified part) Audio Problems Intermittent sound Whistle on the Audio (later models only) Distorted sound Technical Bulletin CTV970203 or CTV980204 Damage print feeding 40V to R368 IC301 (MSP3410) Vertical O/P Stage Faults No or intermittent vertical output Failure of vertical output stage Intermittent frame cramping Rainbow effect (no line pulses at IC501 pin 2) Rainbow effect and R628 (R634 in later models) open circuit Technical Bulletin CTV970207 (Issued Feb 97) Technical Bulletin CTV970202 (Issued Feb 97) & check Q507/8/9 Replace D501, D502, D507, D512, C506 & C507 C501 R631 or R632 fusible resistors Originator AvW Supervisor Sharp Electronics (UK) Limited Approval Date / / Revision 1 Reference AVW120199/2 White ­ Carry out as required, Yellow ­ Carry out as required and whenever the unit comes in for service, Red ­ Carry out on all units CTV990113 TELEVISION TECHNICAL BULLETIN Symptom Possible Remedy Month of Issue: January 1998 Classification: White Page 2 of 2 Other Problems East West correction Blank raster and flyback lines when hot Blank raster ( no sandcastle pulse) Tuner drift Check D605, D612, D619, D621 & R628 (R634 in later models) Technical Bulletin CTV970204 (issued Feb 97) D602 Technical Bulletin CTV970806 (Issued Feb 97) Notes 1. 2. 3. 4. 5. 6. 7. D609 & D610 may not read faulty. Q601, IC201 & C601 are different devices in the 51cm than the larger models. Before r

File name Sharp bulletin 66FW53H-016.pdf

CTV2000 01 04 TELEVISION TECHNICAL BULLETIN MODELS 56FW53H 76FW54H REASON ACTION 66FW53H 59ESD7H 66FW54H 66ESD7H Month of Issue: January 2000 Classification: White Page 1 of 1 76FW53H Simplified procedure for the G2 and Grey Scale adjustments. Follow the procedure below to set the G2 and Grey scale. 1. 2. 3. 4. 5. Tune the set to the output of a RF signal generator (cross hatch pattern). In the user menu, set the picture levels to the FACTORY settings. In the user menu, set the tint control to its central position. Enter the test mode (see service manual for procedure). Set the ABL levels in the NVM by adjusting positions 60, 61, 62, 63, 64 and 65 on page 00 to read 80. Store each location by pressing the standby button on the remote control. 6. Adjust the G2 and grey scale as below. When adjusting the grey scale the following boxes will appear on the screen. (RED) ** e.g. 70 (GREEN) ** ** (BLUE) ** ** (GAIN) (CUT OFF) i. Using a grey scale signal set the G2 so that the display in the Red cut off box reads between 60 and 80 as above. NB. When adjusting the grey scale, the figures displayed in the boxes are an indication of the CRT's performance only. The data to be adjusted is contained in the box at the bottom right corner of the picture. ii. To adjust the grey scale firstly set the Red Cut-off level to 32 and the Red Gain to 50. iii. Leave the Red Cut-off and Gain as above and adjust Green and Blue Cut-off and Gain to achieve correct grey scale tracking. As with all grey scale adjustments it will be necessary to re-adjust the settings to achieve good tracking. These adjustments are for guidance only. If any problems should be encountered the adjustments should be carried out using a Colourimeter as explained in the service manual. Sharp Electronics (UK) Limited Reference JC180100 - 1 Revision 1 White ­ Carry out as required, Yellow ­ Carry out as required and whenever the unit comes in for service, Red ­ Carry out on all units

File name Sharp bulletin 66FW53H-017.pdf

CTV991101 TELEVISION TECHNICAL BULLETIN Month of Issue: November 1999 Classification: Yellow Page 1 of 1 MODELS 66FW53H SYMPTOM In some receivers, the vertical shift may be incorrect. CAUSE ACTION Offset value in the NVM for the vertical shift is not equal to that set in the EPROM. Check the data within the NVM at page 0D position 72. If it is 00 carry out procedure A below. If it is 90 carry out procedure B below. Procedure A 1) Go to page 00 and increase position 2C by 20 steps and memorise by pressing the standby button on the remote control. 2) Go to the V-Shift adjustment and correct the vertical position (if necessary), then memorise. Procedure B 1) Go to page 0D, position 72 and change to 00, then memorise by pressing the standby button on the remote control. 2) Go to page 00 and increase postion 2C by 2 0 steps then memorise. 3) Go to the V-Shift adjustment and increase the value by 20 steps and memorise. Sharp Electronics (UK) Limited Reference AVW051199-1 Revision 3 White ­ Carry out as required, Yellow ­ Carry out as required and whenever the unit comes in for service, Red ­ Carry out on all units

File name Sharp bulletin 66FW53H-068.pdf

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File name Sharp bulletin 66FW53H-069.pdf

CTV2000 08 20 TELEVISION TECHNICAL BULLETIN MODELS 56FW53H 76FW54H 66FW53H 59ESD7H Month of Issue: September 2000 Classification: White Page 1 of 9 66FW54H 66ESD7H 76FW53H Faults experienced on the DA100 (50Hz) Chassis The following faults have been experienced on the DA100 (50Hz) chassis (see models listed above). When servicing any model fitted with a FW chassis, ensure that the internal speakers are connected. 1. Fault finding flow chart. (See page 2) 2. LED fault code table (See page 4) 3. NVM associate problems. (See page 5) RGB brightness Green LED ON permanently Low contrast Teletext problem 4. Set may not turn on, when it does there is a rainbow effect on the screen. (See page 7) 5. Very high HT in excess of 200V. (See page 8) 6. Field fold over at the bottom of the screen after about fifteen minutes. (See page 9) Sharp Electronics (UK) Limited Revision 1 White ­ Carry out as required Yellow ­ Carry out as required and whenever the unit comes in for service Red ­ Carry out on all units DA50 Chassis Fl Chart 1 - No 140v rail Before switching on ensure that the aerial is not connected CTV not faulty CTV not faulty standby mode standby mode Power Supply Starts Neon illuminated No Plug or Internal fuse has failed Plug or Internal fuse has failed Check Bridge Rectifier,Q701, Q702, Check Bridge and D712 Q703 Rectifier,Q701, Q702, Q703 and D712 Yes Power Supply Starts For A Few Seconds Only Press CH+ button on main PWB No NICAM or OPC LED's illuminated Yes Power supply is working correctly Power supply is working correctly check data communication check data communication (see LED's Fault code table) (see LED's Fault code table) No Change 140v IC702 pin15 = 0v Yes line Drive Missing line Drive Missing go to chart 2 go to chart 2 Between 20 And 40 Volts Remove R623 No Check HT (D720 Cathode) Short circuit on a supply other Short circuit on a supply other than the main HT than the main HT Zero Power supply in standby mode Power supply in standby mode check IC702 check IC702 Note: Short Circuit An avalanche diode has been added across C720 HT has increased HT has increased replace IC705 and check replace IC705 and check associated components associated components No Protection circuit operating Protection circuit operating Check IC1001 pin 95 Check IC1001 pin 95 (5v = Normal\zero= standby) (5v = Normal\zero= standby) Power Supply not working Power Supply not working Replace R713 and R714 Replace R713 R714 check D712, Q702 and Q703 check D712, Q702 and Q703 Back to top Sharp Electronics (UK) Ltd DA50 Chassis Fl Chart 2 - 140v rail Present Before switching on ensure that the aerial is disconnected Line Drive Fault Line Drive Fault Check Q607 (crow bar) Check Q607 (crow bar) and IC801 and IC801 Less Than1.8v EHT Protection circuit operating EHT Protection circuit operating Check D617 and amplitude of the line fly-back pulse Check D617 and amplitude of the line fly-back pulse More Than 1.8v Check IC801 pin 12

File name Sharp bulletin 66FW53H468.pdf

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hassis Fl Chart 1 - No 140v rail Before switching on ensure that the aerial is not connected CTV not faulty CTV not faulty standby mode standby mode Power Supply Starts Neon illuminated No Plug or Internal fuse has failed Plug or Internal fuse has failed Check Bridge Rectifier,Q701, Q702, Check Bridge and D712 Q703 Rectifier,Q701, Q702, Q703 and D712 Yes Power Supply Starts For A Few Seconds Only Press CH+ button on main PWB No NICAM or OPC LED's illuminated Yes Power supply is working correctly Power supply is working correctly check data communication check data communication (see LED's Fault code table) (see LED's Fault code table) No Change 140v IC702 pin15 = 0v Yes line Drive Missing line Drive Missing go to chart 2 go to chart 2 Between 20 And 40 Volts Remove R623 No Check HT (D720 Cathode) Short circuit on a supply other Short circuit on a supply other than the main HT than the main HT Zero Power supply in standby mode Power supply in standby mode check IC702 check IC702 Note: Short Circuit An avalanche diode has been added across C720 HT has increased HT has increased replace IC705 and check replace IC705 and check associated components associated components No Protection circuit operating Protection circuit operating Check IC1001 pin 95 Check IC1001 pin 95 (5v = Normal\zero= standby) (5v = Normal\zero= standby) Power Supply not working Power Supply not working Replace R713 and R714 Replace R713 R714 check D712, Q702 and Q703 check D712, Q702 and Q703 Back to top Sharp Electronics (UK) Ltd DA50 Chassis

File name Sharp bulletin 66FW53H720.pdf

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File name Sharp bulletin 66FW53H966.pdf

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File name Sharp bulletin 66_76DW18H.pdf

CTV990101 TELEVISION TECHNICAL BULLETIN Month of Issue: January 1999 Classification: White Page 1 of 1 MODELS 66DW18H 76DW18H SYMPTOM While in the RGB mode, sync may be lost when the channel up or down buttons are pressed. CAUSE ACTION Corruption of the EPROM data. Change the EPROM, using the part number given below. REF NO IC1004 IC1004 DESCRIPTION EPROM, 66DW18H EPROM, 76DW18H PART NUMBER CH-IX1642CJH0 CH-IX1642CJH1 PRICE CODE AZ AX Sharp Electronics (UK) Limited Approval Date / / Reference GE84601X Revision 1 White ­ Carry out as required, Yellow ­ Carry out as required and whenever the unit comes in for service, Red ­ Carry out on all units Originator AvW Supervisor CTV990104 TELEVISION TECHNICAL BULLETIN Month of Issue: January 1999 Classification: White Page 1 of 1 MODELS 66DW18H 76DW18H SYMPTOM While in the NTSC mode, colour or sync may be lost. CAUSE ACTION Corruption of the EPROM data. Change the EPROM, using the part number given below. REF NO IC1004 IC1004 DESCRIPTION EPROM, 66DW18H EPROM, 76DW18H PART NUMBER CH-IX1642CJH0 CH-IX1642CJH1 PRICE CODE AZ AX Sharp Electronics (UK) Limited Approval Date / / Reference GE84300X Revision 2 White ­ Carry out as required, Yellow ­ Carry out as required and whenever the unit comes in for service, Red ­ Carry out on all units Originator AvW Supervisor CTV990105 TELEVISION TECHNICAL BULLETIN Month of Issue: January 1999 Classification: White Page 1 of 1 MODELS 66DW18H 76DW18H SYMPTOM Poor teletext performance. CAUSE ACTION Poor video signal level into the teletext decoder and errors in the EPROM data. Carry out the following circuit change. 1. Change R447 (connected to pin 9 of IC401) with a 0R jumper. 2. Change the EPROM (IC1004) with the one listed below. REF NO IC1004 IC1004 R447 DESCRIPTION EPROM, 66DW18H EPROM, 76DW18H SMD resistor, 0R PART NUMBER CH-IX1642CJH0 CH-IX1642CJH1 VRS-TV1JD000J PRICE CODE AZ AX AA Sharp Electronics (UK) Limited Approval Date / / Reference SP84300X Revision 2 White ­ Carry out as required, Yellow ­ Carry out as required and whenever the unit comes in for service, Red ­ Carry out on all units Originator AvW Supervisor CTV990106 TELEVISION TECHNICAL BULLETIN Month of Issue: January 1999 Classification: White Page 1 of 1 MODELS 66DW18H 76DW18H SYMPTOM In the RGB mode, the picture is displaced to the right. CAUSE ACTION Error in the EEPROM data. While in the service mode, change the data in the following location. NVM Page : NVM Address : Data : 08 5C 45 (was 36) Sharp Electronics (UK) Limited Approval Date / / Reference GE84600X Revision 2 White ­ Carry out as required, Yellow ­ Carry out as required and whenever the unit comes in for service, Red ­ Carry out on all units Originator AvW Supervisor CTV990707 TELEVISION TECHNICAL BULLETIN Month of Issue: July 1999 Classification: White Page 1 of 1 MODELS 66DW18H 76DW18H SYMPTOM No picture - blank raster. CAUSE ACTION R1810, R1811 and R1812 changing in value. Replace R1810, R181