Sharp 15JF-25S Page 28 Service Manual Download | Manualshive

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15JF-25S

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Summary of Contents for 15JF-25S

Page 1: ...ondition and only parts identical to those specified should be used This document has been published to be used for after sales service only ELECTRICAL SPECIFICATION 3 IMPORTANT SERVICING NOTES 4 CONTROLS TERMINALS 5 SERVICE ADJUSTMENTS 6 CHASSIS LAYOUTS 14 LED FLASHING CODES 15 PRINTED WIRING BOARDS 15 ICs ADDITIONAL INFORMATION 20 SCHEMATIC DIAGRAMS 26 BLOCK DIAGRAMS 32 TROUBLESHOOTING TABLES 34...

Page 2: ...ature should not exceed 15 of its original value X 0 290 0 015 Y 0 300 0 015 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 are subject to change w...

Page 3: ...s x ray radiation levels This is a problem when in close proximity to the receiver for long periods of time To reduce any risks associated with this please observe the following precautions 1 When undertaking any servicing on this chassis DO NOT increase the EHT to more than 27 5 KV at a instantaneous beam current of 1000µA 2 Ensure that during normal operation the EHT does not exceed 24 5 KV 1 5K...

Page 4: ...NEL PROGRAMME UP DOWN button Selects next higher programme Selects next lower programme These are also used for menu set up 6 CONTROLS TERMINALS Remote Control TV Front Euro SCART 21 Pin Terminal 1 Audio right output 2 Audio right input 3 Audio left output 4 Common earth for audio 5 Earth for blue 6 Audio left input 7 Blue input 8 Audio video control 9 Earth for green 10 Not used 11 Green input 12...

Page 5: ...s now in the Service Mode See Figure 2 To move between the various Service Mode functions use the channel up and down buttons See Figure 3 Use the volume buttons to change the data to the desired value See Figure 3 The data will be stored automatically when exiting the Service Mode To exit the Service Mode press the stand by button on the remote control or turn the receiver off with the mains swit...

Page 6: ...V LIN Vertical Slope VS 0 63 32 33 ADJ 3 V AMP Vertical Amplitude VA 0 63 32 27 ADJ 4 V CENT Vertical Shift VSH 0 63 32 32 ADJ 5 H CENT Horizontal shift HS 0 63 32 24 ADJ 6 H CENT60 offset to H CENT for 60 Hz 0 31 data 16 15 16 20 FIX 7 EW Horizontal Parallelogram HP 0 63 32 32 FIX 8 HB Horizontal Bow 0 63 32 32 FIX 9 S COR S Correction SC 0 63 0 22 FIX 10 DRI RS White point Red Standard white tem...

Page 7: ...Limit 0 disable or 1 enable 0 1 FIX 53 S L Sound system L 0 disable or 1 enable 0 0 FIX 54 S DK Sound system DK 0 disable or 1 enable 1 0 FIX 55 S I Sound system I 0 disable or 1 enable 1 0 FIX 56 S BG Sound system BG 0 disable or 1 enable 1 1 FIX 57 BLUE BACK Video mute at Ident loss 0 disable or 1 enable 1 1 FIX 58 VMC Video Mute at program source Change 0 disable or 1 enable 1 0 FIX 59 HTL Hote...

Page 8: ...ain set BLUUE BACK 1 12 Turn off the receiver using the mains button 13 The G2 adjustment is now complete 2 Focus Adjustment 1 Receive a monoscope pattern signal at a level of 60 to 80 dB µV 2 Set the picture settings to normal 3 Adjust the focus potentiometer to obtain maximum definition AGC Adjustment 1 Tune the receiver into a colour bar signal on channel E 12 2 Set the RF generator to an outpu...

Page 9: ...ts are complete use the stand by button to turn off the set The adjustment values will be stored at this point V LIN Adjust the vertical linearity control so that the picture centring is as shown in figure 5 V AMP Adjust the vertical amplitude control so that the picture overscans as shown in figure 6 V CENT Adjust the vertical centring control so that the picture is centred as shown in figure 7 H...

Page 10: ...tions to obtain colour co ordinates 6 Re set the TV with the mains switch button to store the adjustment and exit Service Mode 7 Check colour co ordinates X and Y at 20 a 120 Nits It may be necessary to repeat the same procedure to obtain the above values Adjustment Method 2 using the signal generator with a fixed picture signal 1 Adjust G2 2 Tune a white pattern with burst signal 3 Operate in Ser...

Page 11: ...e 0 to 1 Service Mode Indication HTL 3 1 2 Access the Service Mode see this procedure on page 6 3 1 3 Select HTL by using channel up down buttons 3 1 4 Change initial value from 0 off to 1 on 3 1 5 Notes 3 1 5 1 The maximum volume level has been reduced from 60 to 30 For other value go to 3 2 Hotel Mode HTL VOL 3 1 5 2 Channel Setting functions have been deactivated 3 1 5 3 It is necessary to sele...

Page 12: ...Mode it is necessary activate previously Hotel Mode HTL 3 3 4 Select HTL PRG by using channel up down buttons 3 3 3 The initial value to 255 ensures that the TV Set starts up in the same program number that it was been displayed before turn it off 3 3 4 If you want to fix other program number proceed as follows set the value according to your necessities by using volume up down buttons Use values ...

Page 13: ...15JF 25S 14 CHASSIS LAYOUTS Mother Unit CRT Unit ...

Page 14: ... 50 duty cycle For the blinking times see the Table below Note Only when an I2 C error occurs for a number of times or for a number of seconds the I2 C error is handled by the system that is only then the set will go to stand by the led starts blinking Table Error LED blinking times 0 1 2 3 4 5 6 Y X 10 1 2 3 4 5 6 7 8 9 7 PRINTED WIRING BOARDS F 7341N0 PWB Components side IC Module Name Slave Add...

Page 15: ... sound output in QSS versions RMS value 500 mV Io AGCOUT tuner AGC output current range 0 5 mA VoRGB p p RGB output signal amplitudes peak to peak value 2 0 V IoHOUT horizontal output current 10 mA IoVERT vertical output current peak to peak value 1 mA IoEWD EW drive output current 1 2 mA handbook halfpage XXX MXXxxx 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ...

Page 16: ...oupling AVL EWD 1 20 Automatic Volume Levelling East West drive output VDRB 21 vertical drive B output VDRA 22 vertical drive A output IFIN1 23 IF input 1 IFIN2 24 IF input 2 IREF 25 reference current input VSC 26 vertical sawtooth capacitor TUNERAGC 27 tuner AGC output AUDEEM SIFIN1 1 28 audio deemphasis or SIF input 1 DECSDEM SIFIN2 1 29 decoupling sound demodulator or SIF input 2 GND2 30 ground...

Page 17: ... input U B Y input BCLIN 49 beam current limiter input V guard input note 2 BLKIN 50 black current input V guard input note 2 RO 51 Red output GO 52 Green output BO 53 Blue output VDDA 54 analog supply of Teletext decoder and digital supply of TV processor 3 3 V VPE 55 OTP Programming Voltage VDDC 56 digital supply to core 3 3 V OSCGND 57 oscillator ground supply XTALIN 58 crystal oscillator input...

Page 18: ... CONTR BRIGHTN OSD TEXT INSERT CCC WHITE P ADJ 80C51 CPU I2C BUS TRANSCEIVER ROM RAM TELETEXT ACQUISITION 1 10 PAGE MEMORY TELETEXT OSD DISPLAY R G B BL Y U V H V REF ENHANCED VST PWM DAC VST OUT I O PORTS I O PORTS 4x 3 3 V RESET LED OUT 2x ADC IN 4x VPE EW GEOMETRY GEOMETRY EHTO EWD R V G Y B U BL RGB YUV INSERT R G B REF CVBS SYNC H V COR 27 37 38 33 20 29 28 34 44 60 55 59 58 57 10 11 2 3 4 5 ...

Page 19: ...RIVER START UP CURRENT SOURCE 0 75 V 0 5 V 5 Isense 6 DRIVER 4 DEM 8 DRAIN 7 HVS n c OCP LEB blank Iss 2 5 V burst detect SYMBOL PIN DESCRIPTION VCC 1 supply voltage GND 2 ground CTRL 3 control input DEM 4 input from auxiliary winding for demagnetization timing OVP and OPP Isense 5 programmable current sense input DRIVER 6 gate driver output HVS 7 high voltage safety spacer not connected DRAIN 8 d...

Page 20: ...put Standby Input GND N C Volume Pin No Pin Name 1 Inverting Input 2 Power Supply 3 Pump up Output 4 GND 5 Vertical Output 6 Vertical Output Power Supply 7 Non inverting Input Pin No Description 1 Vcc 2 Ch Output 3 GND 4 Ch Output 5 Stand by 6 Ch Input 7 GND Input 8 N C 9 Volume Non inverting Input Output Vcc Output GND Pump Up Out Vcc Inverting Input 1 2 3 4 5 6 7 Pump Up Thermal Protection Amp ...

Page 21: ...E AREA ENCLOSED BY THIS LINE IS DIRECTLY CONNECTED WITH AC MAINS VOLTAGE WHEN SERVICING THE AREA CONNECT AN ISOLATING TRANSFORMER BETWEEN TV RECEIVER AND AC LINE TO ELIMINATE HAZ ARD OF ELECTRIC SHOCK CAUTION This circuit diagram is original one there fore there may be slight difference from yours IMPOTANT SAFETY NOTE PARTS MARKED WITH ARE IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET BE SURE TO...

Page 22: ...27 15JF 25S ...

Page 23: ...15JF 25S 28 1 I H G F E D C B A 2 3 4 5 6 7 Schematic Diagram of Mother Unit F7340N6 00 Version Page 29 ...

Page 24: ...29 15JF 25S Page 30 Schematic Diagram of Mother Unit F7340N6 00 Version I 8 9 10 11 12 13 14 H G F E D C B A Page 28 ...

Page 25: ...15JF 25S 30 15 16 17 18 19 20 21 I H G F E D C B A Schematic Diagram of Mother Unit F7340N6 00 Version Page 29 ...

Page 26: ...31 15JF 25S 1 I H G F E D C B A 2 3 4 5 6 7 Schematic Diagram of CRT Unit F7341N0 00 Version ...

Page 27: ...15JF 25S 32 BLOCK DIAGRAMS CRT Unit I H G F E D C B A 1 2 3 4 5 6 7 ...

Page 28: ...33 15JF 25S Mother Unit I 1 2 3 4 5 6 7 H G F E D C B A ...

Page 29: ...15JF 25S 34 0 1 234 3 5 5 65 5 75 15 8 9 6 9 9 5 4 2 16 1 5 1A5 6 3 65 8 16 1 B 9 5 3 A A 3 A 5 3 6 C NVM IC1002 TV PROCESSOR IC801 TUNER TU201 TROUBLESHOOTING TABLES Power LED Flashes ...

Page 30: ...N Check IC501 bias Normal Abnormal Check C502 and C514 Check IC501 NO SPECIFIC COLOUR NO YES Is some colour produced in B W broadcast reception Check IC801 R801 R802 YES Is the white balance R803 D804 D805 D806 properly adjusted and Q801 NO Readjusted the white balance The picture colour is cyan The picture colour is magenta The picture colour is yellow Check Q870 Q885 and Check Q871 Q883 and Chec...

Page 31: ...data check Does noise or Check IC801 signal appear at and its related Normal pin38 of IC801 circuit NO YES Check the tuner Does noise or AGC at TP201 signal appear at Check Q401 pin23 and 24 Q402 and related Normal Abnormal of IC801 circuit NO YES Check pin38 Check pin27 Check pin1 2 of of IC801 of IC801 Tuner SF201 Tuner Check pin37 of and related circuit and related IC801 and circuit related cir...

Page 32: ...3 9A S AA AA D 0508 RH DX0045BMZZ DIODE 1N4148 S AA AA D 0509 RH DX0045BMZZ DIODE 1N4148 S AA AA D 0510 RH EX0627GEZZ ZENER DIODE MTZJ8 2BT ROHM S AA AA D 0601 RH DX0302CEZZ DIODE UZA S AA AB D 0602 RH DX0045BMZZ DIODE 1N4148 S AA AA D 0603 RH DX0131CEZZ DIODE EU 1 SANKEN S AA AB D 0604 RH DX0045BMZZ DIODE 1N4148 S AA AA D 0605 RH DX0045BMZZ DIODE 1N4148 S AA AA D 0606 RH DX0045BMZZ DIODE 1N4148 S...

Page 33: ...TOR 0 1 UF 50 V S AA AA C 0709 VCFYFA1HA474J FILM CAPACITOR 474 MAT S AA AB C 0710 RC KZ0040CEZZ CERAM C 820PF 2KV S AD AD REF No PARTS DESCRIPTION SN CODE EX CODE C 0712 RC KZ0105GEZZ C CAP 2200PF 4KV KX S AA AB C 0713 VCKYPA1HB102K C CAPACITOR 1000PF 50V S AA AA C 0716 VCKYPA2HB102K CERAM C 1NF 10 500V S AA AA C 0751 RC KZ0299CEZZ CERAM C DE1105 979BN821K2K A3 MURATA S AA AB C 0752 RC EZ0724CEZZ...

Page 34: ...R 0711 VRD RA2BE270J RES 27 OHM 5 1 8W S AA AA REF No PARTS DESCRIPTION SN CODE EX CODE R 0712 VRD RA2HD100J RES 10 OHM 5 1 2W S AA AA R 0713 VRD RA2BE394J RES 390KOHM 5 1 8W S AA AA R 0716 RR HZ0014GEZZ high vol resistor 12m ohm S AA AC R 0718 VRD RA2BE824J RES 820KOHM 5 1 8W S AA AA R 0752 VRD RA2HD102J RES 1KOHM 5 1 2W S AA AA R 0753 VRN VV3DB5R6J MET FILM R 5 6 OHM 5 2W S AA AA R 0761 VRD RA2B...

Page 35: ... 10 50V S AA AA C 0872 VCKYPA1HB471K CERAM C 470PF 10 50V S AA AA C 0873 VCKYPA1HB471K CERAM C 470PF 10 50V S AA AA C 0875 VCKYPA2HB102K CERAM C 1NF 10 500V S AA AA C 0876 RC KZ0150CEZZ CERAM C DE0707 726E102Z3K A MURATA S AA AB C 0878 VCEAGA2EW336M ELEC C 33UF 20 250V S AA AD C 0880 VCKYPA1HB471K CERAM C 470PF 10 50V S AA AA C 0881 VCKYPA1HB471K CERAM C 470PF 10 50V S AA AA C 0882 VCKYPA1HB471K C...

Page 36: ...AN7503 Eff Date 23 FEB 01 4 AN5522 Matsushita Electronics Corporation Specifications AN5522 Product Specifications Doc No SDSC PSE AN5522 Eff Date 21 NOV 2000 1 1 2 1 3 1 4 3 3 2 4 1 1 Remote Control RRMCG1060BMSA R C Battery Cover GCOVHA009WJSA Batteries R6 x2 UBATU0013TAZZ OPERATION MANUAL COLOUR TELEVISION MODEL 15JF 2 Please read this operation manual carefully before using the colour televisi...

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