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Sylvania SRT2232S, Service Manual

The Sylvania SRT2232S comes with a comprehensive Owner's Manual, providing all the necessary instructions and guidelines for using and maximizing the potential of this product. This essential manual can be downloaded for free from manualshive.com, ensuring easy access to all the information needed for a seamless user experience.

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20020315

13-8

L6250EL

R44

CARBON RES. 1/4W J 100k 

Ω

 or

RCX4JATZ0104

CARBON RES. 1/6W J 100k 

Ω

RCX6JATZ0104

R45

CARBON RES. 1/4W J 470 

Ω

 or

RCX4JATZ0471

CARBON RES. 1/6W J 470 

Ω

RCX6JATZ0471

R49

CARBON RES. 1/4W J 22k 

Ω

 or

RCX4JATZ0223

CARBON RES. 1/6W J 22k 

Ω

RCX6JATZ0223

R101

CARBON RES. 1/4W J 1.5k 

Ω

 or

RCX4JATZ0152

CARBON RES. 1/6W J 1.5k 

Ω

RCX6JATZ0152

R102

CARBON RES. 1/4W J 1.5k 

Ω

 or

RCX4JATZ0152

CARBON RES. 1/6W J 1.5k 

Ω

RCX6JATZ0152

R103

CARBON RES. 1/4W J 2.2k 

Ω

 or

RCX4JATZ0222

CARBON RES. 1/6W J 2.2k 

Ω

RCX6JATZ0222

R104

CARBON RES. 1/4W J 2.7k 

Ω

 or

RCX4JATZ0272

CARBON RES. 1/6W J 2.7k 

Ω

RCX6JATZ0272

R105

CARBON RES. 1/4W J 4.7k 

Ω

 or

RCX4JATZ0472

CARBON RES. 1/6W J 4.7k 

Ω

RCX6JATZ0472

R109

CARBON RES. 1/4W J 10k 

Ω

 or

RCX4JATZ0103

CARBON RES. 1/6W J 10k 

Ω

RCX6JATZ0103

R110

PCB JUMPER D0.6-P5.0

JW5.0T      

R113

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R121

CARBON RES. 1/4W J 22k 

Ω

 or

RCX4JATZ0223

CARBON RES. 1/6W J 22k 

Ω

RCX6JATZ0223

R122

PCB JUMPER D0.6-P5.0

JW5.0T      

R123

CARBON RES. 1/4W J 2.2k 

Ω

 or

RCX4JATZ0222

CARBON RES. 1/6W J 2.2k 

Ω

RCX6JATZ0222

R124

CARBON RES. 1/4W J 10k 

Ω

 or

RCX4JATZ0103

CARBON RES. 1/6W J 10k 

Ω

RCX6JATZ0103

R125

CARBON RES. 1/4W J 470 

Ω

 or

RCX4JATZ0471

CARBON RES. 1/6W J 470 

Ω

RCX6JATZ0471

R126

CARBON RES. 1/4W J 220 

Ω

 or

RCX4JATZ0221

CARBON RES. 1/6W J 220 

Ω

RCX6JATZ0221

R127

CARBON RES. 1/4W J 22k 

Ω

 or

RCX4JATZ0223

CARBON RES. 1/6W J 22k 

Ω

RCX6JATZ0223

R128

CARBON RES. 1/4W J 6.8k 

Ω

 or

RCX4JATZ0682

CARBON RES. 1/6W J 6.8k 

Ω

RCX6JATZ0682

R129

CARBON RES. 1/4W J 3.3k 

Ω

 or

RCX4JATZ0332

CARBON RES. 1/6W J 3.3k 

Ω

RCX6JATZ0332

R130

PCB JUMPER D0.6-P5.0

JW5.0T      

R131

CARBON RES. 1/4W J 560k 

Ω

 or

RCX4JATZ0564

CARBON RES. 1/6W J 560k 

Ω

RCX6JATZ0564

R132

CARBON RES. 1/4W J 1k 

Ω

 or

RCX4JATZ0102

CARBON RES. 1/6W J 1k 

Ω

RCX6JATZ0102

R140

CARBON RES. 1/4W J 220k 

Ω

 or

RCX4JATZ0224

CARBON RES. 1/6W J 220k 

Ω

RCX6JATZ0224

R141

CARBON RES. 1/4W J 82 

Ω

 or

RCX4JATZ0820

CARBON RES. 1/6W J 82 

Ω

RCX6JATZ0820

R142

#

CARBON RES. 1/4W J 22k 

Ω

 or

RCX4JATZ0223

#

CARBON RES. 1/6W J 22k 

Ω

RCX6JATZ0223

R143

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R144

CARBON RES. 1/4W J 1M 

Ω

 or

RCX4JATZ0105

CARBON RES. 1/6W J 1M 

Ω

RCX6JATZ0105

R145

CARBON RES. 1/4W J 10k 

Ω

 or

RCX4JATZ0103

CARBON RES. 1/6W J 10k 

Ω

RCX6JATZ0103

R147

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R149

CARBON RES. 1/4W J 220k 

Ω

 or

RCX4JATZ0224

CARBON RES. 1/6W J 220k 

Ω

RCX6JATZ0224

R150

PCB JUMPER D0.6-P5.0

JW5.0T      

R151

CARBON RES. 1/4W J 4.7k 

Ω

 or

RCX4JATZ0472

Ref. No.

Description

Part No.

CARBON RES. 1/6W J 4.7k 

Ω

RCX6JATZ0472

R152

CARBON RES. 1/4W J 4.7k 

Ω

 or

RCX4JATZ0472

CARBON RES. 1/6W J 4.7k 

Ω

RCX6JATZ0472

R153

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R154

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R155

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R156

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R157

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R158

CARBON RES. 1/4W J 1k 

Ω

 or

RCX4JATZ0102

CARBON RES. 1/6W J 1k 

Ω

RCX6JATZ0102

R159

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R160

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R162

CARBON RES. 1/4W J 22k 

Ω

 or

RCX4JATZ0223

CARBON RES. 1/6W J 22k 

Ω

RCX6JATZ0223

R163

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R164

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R301

CARBON RES. 1/4W J 2.2k 

Ω

 or

RCX4JATZ0222

CARBON RES. 1/6W J 2.2k 

Ω

RCX6JATZ0222

R303

CARBON RES. 1/4W J 22k 

Ω

 or

RCX4JATZ0223

CARBON RES. 1/6W J 22k 

Ω

RCX6JATZ0223

R305

CARBON RES. 1/4W J 150k 

Ω

 or

RCX4JATZ0154

CARBON RES. 1/6W J 150k 

Ω

RCX6JATZ0154

R306

CARBON RES. 1/4W J 15k 

Ω

 or

RCX4JATZ0153

CARBON RES. 1/6W J 15k 

Ω

RCX6JATZ0153

R321

CARBON RES. 1/4W J 2.2k 

Ω

 or

RCX4JATZ0222

CARBON RES. 1/6W J 2.2k 

Ω

RCX6JATZ0222

R322

CARBON RES. 1/4W J 2.2k 

Ω

 or

RCX4JATZ0222

CARBON RES. 1/6W J 2.2k 

Ω

RCX6JATZ0222

R323

CARBON RES. 1/4W J 2.2k 

Ω

 or

RCX4JATZ0222

CARBON RES. 1/6W J 2.2k 

Ω

RCX6JATZ0222

R324

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R325

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R326

CARBON RES. 1/4W J 100 

Ω

 or

RCX4JATZ0101

CARBON RES. 1/6W J 100 

Ω

RCX6JATZ0101

R329

PCB JUMPER D0.6-P5.0

JW5.0T      

R331

METAL FILM RES. 1/6W F 4.7k 

Ω

 or

RMX6FATH4701

METAL FILM RES. 1/4W F 4.7k 

Ω

RMX4FATH4701

R332

CARBON RES. 1/4W J 470 

Ω

 or

RCX4JATZ0471

CARBON RES. 1/6W J 470 

Ω

RCX6JATZ0471

R333

CARBON RES. 1/4W J 470 

Ω

 or

RCX4JATZ0471

CARBON RES. 1/6W J 470 

Ω

RCX6JATZ0471

R334

CARBON RES. 1/4W J 1k 

Ω

 or

RCX4JATZ0102

CARBON RES. 1/6W J 1k 

Ω

RCX6JATZ0102

R335

CARBON RES. 1/4W J 33k 

Ω

 or

RCX4JATZ0333

CARBON RES. 1/6W J 33k 

Ω

RCX6JATZ0333

R337

CARBON RES. 1/4W J 10k 

Ω

 or

RCX4JATZ0103

CARBON RES. 1/6W J 10k 

Ω

RCX6JATZ0103

R338

CARBON RES. 1/4W J 4.7k 

Ω

 or

RCX4JATZ0472

CARBON RES. 1/6W J 4.7k 

Ω

RCX6JATZ0472

R339

CARBON RES. 1/4W J 10k 

Ω

 or

RCX4JATZ0103

Ref. No.

Description

Part No.

Summary of Contents for SRT2232S

Page 1: ...32 COLOR TELEVISION SRT2232S SERVICE MANUAL ...

Page 2: ...valuate and advice the service trade of all con ceivable ways in which service might be done or of the possible hazardous consequences of each way Consequently Funai has not undertaken any such broad evaluation Accordingly a servicer who uses a service proce dure or tool which is not recommended by Funai must first use all precau tions thoroughly so that neither his safety nor the safe operation o...

Page 3: ...et limit specifications Description Condition Unit Nominal Limit 1 Intermediate Freq Picture Sound MHz MHz 45 75 41 25 2 Peak Picture Sens VHF CATV UHF dBµV dBµV dBµV 15 15 15 30 30 40 3 AFT Pull In Range 10mV input MHz 2 2 0 7 Description Condition Unit Nominal Limit 1 Deflection Freq Horizontal Vertical KHz Hz 15 734 60 2 Linearity Horizontal Vertical 15 10 3 Over Scan 10 4 High Voltage KV 29 De...

Page 4: ...ngs tied together and touch the other ohmme ter lead in turn to each tuner antenna input ex posed terminal screw and if applicable to the coaxial connector If the measured resistance is less than 1 0 megohm or greater than 5 2 mego hm an abnormality exists that must be corrected before the instrument is returned to the customer Repeat this test with the instrument AC switch in the off position d L...

Page 5: ...the ground side of the AC power source To confirm that the AC power plug is inserted correctly with an AC volt meter measure between the chassis and a known earth ground If a voltage reading in excess of 1 0V is obtained remove and reinsert the AC power plug in the opposite polarity and again measure the voltage potential between the chassis and a known earth ground b Some TV receiver chassis norm...

Page 6: ...replaced wires do not contact sharp edged or pointed parts H When a power cord has been replaced check that 5 6 kg of force in any direction will not loosen it I Also check areas surrounding repaired locations J Use care that foreign objects screws solder drop lets etc do not remain inside the set K Crimp type wire connector The power transformer uses crimp type connec tors which connect the power...

Page 7: ...exposed accessible parts RF terminals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc is lower than or equal to the specified value in the table below Measuring Method Power ON Insert load Z between B earth ground power cord plug prongs and exposed accessible parts Use an AC voltmeter to measure across both terminals of load Z See Fig 2 and followin...

Page 8: ...C is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Release the flat pack IC from the CBA using twee zers Fig S 1 6 Caution 1 Do not supply hot air to the chip parts around the flat pack IC for over 6 seconds because damage to the chip parts may occur Put masking tape arou...

Page 9: ... pins of the flat pack IC you can remove it easily Fig S 1 3 2 Affix the wire to a workbench or solid mounting point as shown in Fig S 1 5 3 While heating the pins using a fine tip soldering iron or hot air blower pull up the wire as the solder melts so as to lift the IC leads from the CBA con tact pads as shown in Fig S 1 5 4 Bottom of the flat pack IC is fixed with glue to the CBA when removing ...

Page 10: ...cur due to a potential difference caused by electro static charge during unpacking or repair work 1 Ground for Human Body Be sure to wear a grounding band 1MΩ that is prop erly grounded to remove any static electricity that may be charged on the body 2 Ground for Workbench Be sure to place a conductive sheet or copper plate with proper grounding 1MΩ on the workbench or other surface where the semi...

Page 11: ...sed unplugged unclamped or desoldered S Screw P Spring L Locking Tab CN Con nector Unhook Unlock Release Unplug or Desolder 2 S 2 two Screws S 2 5 Refer to the following Reference Notes in the Table Reference Notes in the Table 1 Removal of the Rear Cabinet Remove screws 7 S 1 1 S 2 and 3 S 4 then slide the Rear Cab inet backward 2 Removal of the CRT CBA Disconnect CN1501 then pull the CRT CBA bac...

Page 12: ...4 2 L6250DC Fig 1 S 1 S 2 S 4 1 Rear Cabinet S 1 S 1 S 1 Fig 2 1 Rear Cabinet S 1 S 1 S 1 S 1 S 1 S 1 S 1 S 4 S 2 3 Main CBA Fig 3 Fig 4 4 CRT Anode Cap S 3 S 3 S 3 S 3 ...

Page 13: ...E CN801 CLN801 SP801 DG691 DEGAUSSING COIL MAIN CBA FLYBACK TRANSFORMER T571 AC601 AC CORD TU1 TUNER WH501B JK1501 WH301B FOCUS SCREEN WH501A WH301A TO CRT GROUND CN571 CN1501 CN802 CLN802 SP802 Fig 5 TV Cable Wiring Diagram ...

Page 14: ...he unit does not operate correctly Note TP601 TP300 GND VR661 Main CBA 1 Connect DC Volt Meter to TP601 and TP300 GND 2 Adjust VR661 so that the voltage of TP601 becomes 138 0 5V DC 2 1 Setting for 7F CHROMA LAN GUAGE STEREO TYPE AC CESS CODE STABLE SOUND COMB FILTER COMPONENT and AV MEMORY data Values General 1 Enter the Service mode See page 5 1 2 Press VOL p button on the Service remote con tro...

Page 15: ...8 V TNT 1 Press MENU button on the Service remote con trol unit Then select V TINT V TNT display 2 Press CH o p buttons on the Service remote control unit so that the value of V TINT V TNT becomes 68 S TNT 1 Press MENU button on the Service remote con trol unit Then select S TINT S TNT display 2 Press CH o p buttons on the Service remote control unit so that the value of S TINT S TNT becomes 62 SH...

Page 16: ...obtain correct vertical width of screen image Symptom of misadjustment If V Position is incor rect vertical height of image on the screen may not be properly displayed Note Use Service remote control unit 1 Operate the unit for at least 20 minutes 2 Enter the Service Mode See page 5 1 3 Receive the Monoscope Pattern 4 Press 9 button on the Service remote control unit and select V P mode Display ch...

Page 17: ...ct horizontal size of screen image Symptom of Misadjustment If H Size is incorrect horizontal size of image on the screen may not be properly displayed Note Use Service remote control unit 1 Operate the unit for at least 20 minutes 2 Receive the Monoscope Pattern 3 Adjust VR561 so that the monoscope pattern will be 90 5 of display size and circle is round 4 Turn the Power off and on again Main pow...

Page 18: ... correctly for pure white Symptom of Misadjustment White becomes bluish or reddish Note Use Service remote control unit 1 Operate the unit more than 20 minutes 2 Face the unit to east Degauss the CRT using De gaussing Coil 3 Input the White Raster APL 100 4 Set the color analyzer to the CHROMA mode and after zero point calibration bring the optical recep tor to the center on the tube surface CRT 5...

Page 19: ...ns former 1 Operate the unit more than 30 minutes 2 Face the unit to the East and Degauss the CRT using Degaussing Coil 3 Input the Monoscope Pattern 4 Adjust the Focus Control on the FBT to obtain clear picture The following 2 adjustments normally are not attempted in the field Only when replacing the CRT then adjust as a preparation 15 1 Purity Adjustment Purpose To obtain pure color Symptom of ...

Page 20: ... get the cross hatch pat tern 2 Adjust the two magnets for VRS adjustment like the below figure so that the cross hatch pattern be comes flat 16 1 Convergence Adjustment Purpose To obtain proper convergence of red green and blue beams Symptom of Misadjustment If Convergence Adjust ment is incorrect the edge of white letters may have color edges Test Point Adj Point Mode Input C P Magnet RB C P Mag...

Page 21: ...g RB G C P Magnet See Fig 8 3 Paintlock the C P Magnets after adjustment 4 Remove the DY Wedges and slightly tilt the De flection Yoke horizontally and vertically to obtain the best overall convergence 5 Fix the Deflection Yoke by carefully inserting the DY Wedges between CRT and Deflection Yoke 16 2 Yh Yv Xv Adjustment 1 Adjust the volume of Deflection Yoke Yh Yv Xv to get good convergence Xv YH ...

Page 22: ... 14 21 13 6 3 1 11 12 Q31 BUFFER 3 5 4 13 14 1 2 15 4 SW CTL SW CTL 20 17 Q798 Q901 BUFFER BUFFER BUFFER Q936 Q951 Q956 BUFFER Q931 BUFFER 9 10 11 9 11 13 9 12 13 5 3 4 14 TO FROM VIDEO SYSTEM CONTROL BLOCK DIAGRAM JK721 V IN FRONT JK711 S V IN REAR C Y MAIN CBA IC31 IF SIGNAL PROCESS AGC TP301 AFT TP303 CF31 L33 45 75MHz VCO TO AUDIO BLOCK DIAGRAM IC781 IN PUT SELECT IC901 Y C SEPARATION IC941 IN...

Page 23: ...UME A MUTE H VOLUME RF AGC AFT INPUT 0 INPUT 0 INPUT 1 INPUT 1 FSC SDA SCL RF AGC AFT INPUT 0 INPUT 1 FSC SCL SDA DG ON H P ON H 5V CTRL 8V CTRL 5V Q101 D101 POWER DG ON H P ON H 5V CTRL 8V CTRL ACC SW SW DEMOD CHROMINANCE SIGNAL PROCESS LUMINANCE SIGNAL PROCESS RGB MATRIX RGB SIGNAL PROCESS OSD SW RGB DRIVE CUT OFF OSD CONTRAST OSD B G R SYNC SEPARATION H SYNC SIGNAL PROCESS V SYNC SIGNAL PROCESS...

Page 24: ...TER WIDE BAND FILTER WIDE BAND RMS DET WIDE BAND EXPAND SPECTRAL EXPAND SPECTRAL RMS DET SPECTRAL FILTER OFF SET CANCEL TP421 R OUT L CH R CH MATRIX MATRIX L R DEMOD L R FILTER L R SAP SW SAP FILTER I2C BUS CONTROL SAP DEMOD SAP FILTER 29 30 FROM IF VIDEO INPUTSELECT BLOCK DIAGRAM TUNER REAR FRONT TUNER REAR FRONT L CH R CH TP422 L OUT 21 27 24 IC431 MTS SAP AUDIO SIGNAL PROCESS JK722 A IN L FRONT...

Page 25: ...ANODE GND V1501 CRT FOCUS SCREEN GND JK1501 CN1501 WH501B WH501A VIDEO SIGNAL CN571 FOCUS VR VCC SCREEN VR 6 7 6 8 H OUTPUT H DRIVE FROM POWER SUPPLY BLOCK DIAGRAM B 15kHz TP302 GND TP500 BLUE TP501 4 3 1 5 S F HV 11 8 10 7 9 6 DEF B AMP 1 7 6 3 2 PULSE UP THERMAL PROTECTION 5 WF7 WF8 WF9 WF12 WF16 WF13 WF10 WF3 WF4 WF5 RED AMP PROTECT2 RED 3 GREEN 4 BLUE 5 FROM TO VIDEO SYSTEM CONTROL BLOCK DIAGR...

Page 26: ...er supply circuit is used in this unit If Main Fuse F601 is blown check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE ONLY WITH THE SAME TYPE FUSE ATTENTION POUR UNE PROTECTION CONTIN...

Page 27: ...rawings for ordering The correct part number is shown in the parts list and may be slightly different or amended since these drawings were prepared 2 All resistance values are indicated in ohms K 103 M 106 3 Resistor wattages are 1 4W or 1 6W unless otherwise specified 4 All capacitance values are indicated in µF P 10 6 µF 5 All voltages are DC voltages unless otherwise specified Note of Capacitor...

Page 28: ...al function and reliability of repaired units use only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Wire Connectors 1 Prefix symbol CN means connector can disconnect and reconnect 2 Prefix symbol CL means wire solder holes of the PCB wire is soldered directly 5 Note Mark I is a leadless chip component 6 Voltage indications on...

Page 29: ... C3 C4 C5 D1 D2 D3 D4 D5 E1 E2 E3 E4 E5 F1 F2 F3 F4 F5 G1 G2 G3 G4 G5 VIDEO SIGNAL 7 3 7 4 7 5 L6250SCM1 Main 1 4 Schematic Diagram MAIN 1 4 Ref No Position IC151 B 3 IC333 C 2 Q49 B 4 Q141 B 2 Q151 C 3 Q152 C 3 Q301 D 1 ICS TRANSISTORS ...

Page 30: ...O SIGNAL AUDIO SIGNAL 7 6 7 7 7 8 L6250SCM2 Main 2 4 Schematic Diagram MAIN 2 4 Ref No Position IC31 I 4 IC771 J 2 IC801 K 5 Q31 I 3 Q701 M 1 Q702 M 1 Q721 M 2 Q751 L 2 Q761 L 2 Q791 L 1 Q792 K 2 Q793 K 1 Q794 J 1 Q851 L 5 CN151 H 4 CN801 N 3 CN802 N 2 TP300 H 5 TP301 H 5 TP303 H 4 ICS TRANSISTORS TEST POINTS CONNECTORS ...

Page 31: ...NST FIRE HAZARD REPLACE ONLY WITH THE SAME TYPE FUSE ATTENTION POUR UNE PROTECTION CONTINUE LES RISQES D INCELE N UTILISER QUE DES FUSIBLE DE MEMO TYPE RISK OF FIRE REPLACE FUSE AS MARKED This symbol means fast operating fuse Ce symbole reprèsente un fusible à fusion rapide 4A 125V MAIN 3 4 Ref No Position IC551 P 5 IC601 R 2 Q551 Q 5 Q552 Q 4 Q561 R 4 Q571 R 4 Q572 Q 4 Q601 T 2 Q602 S 2 Q652 R 2 ...

Page 32: ...A1 VIDEO SIGNAL AUDIO SIGNAL 7 12 7 13 7 14 L6250SCM4 Main 4 4 Schematic Diagram MAIN 4 4 Ref No Position IC431 V 2 IC781 X 3 IC901 X 1 IC941 Y 3 Q788 Z 2 Q901 Z 1 Q931 Y 2 Q936 Y 2 Q944 Y 4 Q951 Z 3 Q956 AA 2 Q961 X 2 Q971 Z 2 TP421 V 3 TP422 V 3 ICS TRANSISTORS TEST POINTS ...

Page 33: ...LACE ONLY WITH THE SAME TYPE FUSE ATTENTION POUR UNE PROTECTION CONTINUE LES RISQES D INCELE N UTILISER QUE DES FUSIBLE DE MEMO TYPE RISK OF FIRE REPLACE FUSE AS MARKED This symbol means fast operating fuse Ce symbole reprèsente un fusible à fusion rapide 4A 125V MAIN CBA Ref No Position IC31 A 1 IC151 F 5 IC333 E 5 IC431 C 2 IC551 C 2 IC601 D 4 IC771 F 2 IC781 C 1 IC801 F 2 IC901 D 1 IC941 B 1 Q3...

Page 34: ... AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT AN ISOLATION TRANSFORMER MUST BE USED ALSO IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWLY WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT A VARIABLE ISOLATION TRANSFORMER IS REQUIRED CAUTION FOR CONTINUED PROTE...

Page 35: ...500 GND TP501 BLUE 7 21 BL6250F01011 2 7 22 CRT CBA Top View CRT CBA Bottom View CRT Ref No Position Q1511 A 1 Q1512 A 1 Q1521 A 1 Q1522 B 1 Q1531 C 1 Q1532 C 1 CN1501 B 1 WH301B B 2 WH501B C 2 TP500 A 1 TP501 C 1 TRANSISTORS CONNECTORS TEST POINTS ...

Page 36: ...IV 100mV 500µsec IC 801 Pin 5 WF5 1DIV 10V 20µsec Q 572 Collector WF7 1DIV 20V 20µsec Q 571 Base WF8 1DIV 5V 5msec CN571 Pin 5 WF13 1DIV 200mV 20µsec IC 333 Pin 48 WF15 1DIV 50V 20µsec CN571 Pin 3 WF16 L6250WF 8 1 8 2 WF1 WF16 Waveforms to be observed at Waveform check points Shown in Schematic Diagram Input NTSC Color Bar Signal with 1kHz Audio Signal INITIAL POSITION Unplug unit from AC outlet f...

Page 37: ... 1 WH301B GND RED GREEN BLUE V1501 CRT ANODE L CH R CH 1 SP GND 2 SP801 SPEAKER CN801 1 SP GND 2 SP802 SPEAKER CN802 9 1 L6250WI T571 FBT TU1 TUNER UNIT WH501A WH501B 8V GND RED GREEN BLUE 8V HEATER 3 GND 2 200V 1 GND 2 200V 1 HEATER 3 CN151 NO CONNECTION CN151 IS USED FOR ADJUSTMENT AT FACTORY AGC 1 AFT 2 NU 3 IIC OPEN 4 GND 5 SDA 6 SCL 7 SCL 2 8 CLN801 CLN802 SP L SP R ...

Page 38: ...Output 32 NU Not Used 33 FBP IN Flyback Pulse Input 34 H VCO REF H VCO lref 35 H GND Horizontal GND 36 NU Not Used 37 NU Not Used 38 NU Not Used 39 NU Not Used 40 FSC fsc 3 85MHz Output 41 BL STRETCH Black Stretch DC Rest Filter 42 APC Chroma APC Filter 43 3 58MHZ 3 58MHz Crystal 44 VCC Video Chroma Vertical VCC 45 NU Not Used 46 NU Not Used 47 5V CTRL 5 7V VCC Output 48 C3 C Chrpma Input C3 49 NU...

Page 39: ...10 2 L6250PIN 72 I2C OPEN Bus Open Line 73 INPUT 1 Video Control 74 GND GND 75 GND VSS 76 GND GND 77 XTAL1 XT1 78 XTAL2 XT2 79 GND GND 80 VDD VDD Pin No Signal Name Function ...

Page 40: ...2 L2 L4 L2 L2 L3 L2 A5 B 8 B 7 B 6 L 1 L 1 B 9 L 1 L 1 A2 L 1 Scotch Tape 880 MAIN CBA CRT CBA AC601 V501 DY551 CLN551 L691 Lead Clamper Lead Clamper Lead Clamper Lead Clamper Lead Clamper Lead Clamper V501 1 DY551 Details for DY551 and surrounding parts SHINWHA TAPE SGT 730 WHITE SHINWHA TAPE SGT 730 BLACK V501 2 ...

Page 41: ...FRONT S2 S6 PACKING TAPE S5 S4 S3 S2 POP LABEL X2 X4 X3 TAPE X1 S1 Packing 11 3 L6250PEX ...

Page 42: ...T 3X10 BIND HEAD GBKP3100 L691 DEGAUSSING COIL F L1232V LLBH00ZTM047 PB6 CLOTH 65 L7735TR 65X10X0 5T 0EM402149 SP801 SPEAKER S08F16 J DSD0808XQ009 SP802 SPEAKER S08F26 J DSD0808XQ008 PACKING S1 CARTON L6250UA 0EM407006 S2 STYROFOAM TOP ASSEMBLY L6250UA 0EM407000 S3 STYROFOAM BOTTOM ASSEMBLY L6520UA 0EM407001 S4 SET SHEET PCEC 003502019816 0EM403887 S5 SERIAL NO LABEL L6250UA 0EM407004 S6 HOLD PAD ...

Page 43: ...MASTL010 ELECTROLYTIC CAP 1µF 50V M or CE1JMASDL1R0 ELECTROLYTIC CAP 1µF 50V M CE1JMASDL010 C41 CERAMIC CAP AX F Z 0 01µF 25V CDA1EZT0F103 C42 CERAMIC CAP AX F Z 0 01µF 25V CDA1EZT0F103 C43 CERAMIC CAP AX B K 330pF 50V CCA1JKT0B331 C45 CERAMIC CAP AX B K 1000pF 50V CCA1JKT0B102 C104 ELECTROLYTIC CAP 10µF 50V M or CE1JMASTL100 ELECTROLYTIC CAP 10µF 50V M CE1JMASDL100 C124 CERAMIC CAP AX B K 150pF 5...

Page 44: ...0V M CE1JMASDL010 C436 CERAMIC CAP AX F Z 0 01µF 25V CDA1EZT0F103 C441 ELECTROLYTIC CAP 10µF 50V M or CE1JMASTL100 ELECTROLYTIC CAP 10µF 50V M CE1JMASDL100 Ref No Description Part No C442 ELECTROLYTIC CAP 2 2µF 50V M or CE1JMASTL2R2 ELECTROLYTIC CAP 2 2µF 50V M CE1JMASDL2R2 C444 ELECTROLYTIC CAP 0 33µF 50V M or CE1JMASTLR33 ELECTROLYTIC CAP 0 33µF 50V M CE1JMASDLR33 C445 FILM CAP 0 22µF 50V J or 1...

Page 45: ...No Description Part No ELECTROLYTIC CAP 2200µF 35V M CE1GMZNDL222 C658 ELECTROLYTIC CAP 1000µF 16V M VR HC or CE1CMZNTL102 ELECTROLYTIC CAP 1000µF 16V M or CE1CMZNDL102 ELECTROLYTIC CAP 1000µF 16V M CE1CMZADL102 C661 CERAMIC CAP AX F Z 0 01µF 25V CDA1EZT0F103 C662 ELECTROLYTIC CAP 1000µF 25V M or CE1EMZNTL102 ELECTROLYTIC CAP 1000µF 25V M CE1EMZPDL102 C667 ELECTROLYTIC CAP 1µF 50V M or CE1JMASTL1R...

Page 46: ... CAP AX B K 0 01µF 50V CA1J103TU011 C922 CERAMIC CAP AX B K 180pF 50V CCA1JKT0B181 C923 CERAMIC CAP AX F Z 0 01µF 25V CDA1EZT0F103 C925 CERAMIC CAP AX B K 0 01µF 50V CA1J103TU011 C926 CERAMIC CAP AX B K 0 01µF 50V CA1J103TU011 Ref No Description Part No C928 ELECTROLYTIC CAP 10µF 50V M or CE1JMASTL100 ELECTROLYTIC CAP 10µF 50V M CE1JMASDL100 C929 CERAMIC CAP AX F Z 0 01µF 25V CDA1EZT0F103 C931 CER...

Page 47: ... or NDTZ001N4148 DIODE 1SS176TPA7 1SS176T D694 ZENER DIODE MTZJT 7715B QDTB00MTZJ15 Ref No Description Part No D696 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 SWITCHING DIODE 1N4148 or NDTZ001N4148 DIODE 1SS176TPA7 1SS176T D697 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 SWITCHING DIODE 1N4148 or NDTZ001N4148 DIODE 1SS176TPA7 1SS176T D698 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 SWITCHING DIOD...

Page 48: ...C3331TZ TRANSISTOR 2SC3331 U AANP or 2SC3331UZ Ref No Description Part No TRANSISTOR 2SC1815 GR TPE2 QQS102SC1815 Q571 TRANSISTOR 2SD2553 QQWZ02SD2553 Q572 TRANSISTOR 2SC1627Y TPE2 QQSY02SC1627 Q601 FET 2SK3407 QFFZ02SK3407 Q602 TRANSISTOR 2SC2120 O TPE2 or QQS002SC2120 TRANSISTOR 2SC2120 Y TPE2 QQSY02SC2120 Q652 TRANSISTOR 2SC2785 F or QQSF02SC2785 TRANSISTOR 2SC2785 H or QQSH02SC2785 TRANSISTOR ...

Page 49: ...R KTA1266 GR or NQS40KTA1266 TRANSISTOR 2SA1318 T AANP or 2SA1318TZ TRANSISTOR 2SA1318 U AANP or 2SA1318UZ Ref No Description Part No TRANSISTOR 2SA1015 GR TPE2 QQS102SA1015 Q931 TRANSISTOR 2SC2785 F or QQSF02SC2785 TRANSISTOR 2SC2785 H or QQSH02SC2785 TRANSISTOR 2SC2785 J or QQSJ02SC2785 TRANSISTOR KTC3199 GR or NQS10KTC3199 TRANSISTOR KTC3198 GR or NQS40KTC3198 TRANSISTOR 2SC3331 T AANP or 2SC33...

Page 50: ...CB JUMPER D0 6 P5 0 JW5 0T R151 CARBON RES 1 4W J 4 7k Ω or RCX4JATZ0472 Ref No Description Part No CARBON RES 1 6W J 4 7k Ω RCX6JATZ0472 R152 CARBON RES 1 4W J 4 7k Ω or RCX4JATZ0472 CARBON RES 1 6W J 4 7k Ω RCX6JATZ0472 R153 CARBON RES 1 4W J 100 Ω or RCX4JATZ0101 CARBON RES 1 6W J 100 Ω RCX6JATZ0101 R154 CARBON RES 1 4W J 100 Ω or RCX4JATZ0101 CARBON RES 1 6W J 100 Ω RCX6JATZ0101 R155 CARBON RE...

Page 51: ... or RN018R2ZU001 METAL OXIDE FILM RES 1W J 8 2 Ω RN018R2DP003 R553 CARBON RES 1 4W J 2 2k Ω or RCX4JATZ0222 Ref No Description Part No CARBON RES 1 6W J 2 2k Ω RCX6JATZ0222 R554 CARBON RES 1 4W J 2 2k Ω or RCX4JATZ0222 CARBON RES 1 6W J 2 2k Ω RCX6JATZ0222 R555 CARBON RES 1 4W J 1 5k Ω or RCX4JATZ0152 CARBON RES 1 6W J 1 5k Ω RCX6JATZ0152 R556 CARBON RES 1 4W J 100k Ω or RCX4JATZ0104 CARBON RES 1 ...

Page 52: ...661 CARBON RES 1 4W J 100k Ω or RCX4JATZ0104 CARBON RES 1 6W J 100k Ω RCX6JATZ0104 Ref No Description Part No R662 CARBON RES 1 4W J 82k Ω or RCX4JATZ0823 CARBON RES 1 6W J 82k Ω RCX6JATZ0823 R663 PCB JUMPER D0 6 P5 0 JW5 0T R664 CARBON RES 1 4W J 12k Ω or RCX4JATZ0123 CARBON RES 1 6W J 12k Ω RCX6JATZ0123 R665 CARBON RES 1 4W J 5 6k Ω or RCX4JATZ0562 CARBON RES 1 6W J 5 6k Ω RCX6JATZ0562 R666 META...

Page 53: ...02 R767 CARBON RES 1 4W J 560 Ω or RCX4JATZ0561 CARBON RES 1 6W J 560 Ω RCX6JATZ0561 Ref No Description Part No R771 CARBON RES 1 4W J 10k Ω or RCX4JATZ0103 CARBON RES 1 6W J 10k Ω RCX6JATZ0103 R772 CARBON RES 1 4W J 10k Ω or RCX4JATZ0103 CARBON RES 1 6W J 10k Ω RCX6JATZ0103 R773 PCB JUMPER D0 6 P5 0 JW5 0T R781 CARBON RES 1 4W J 10k Ω or RCX4JATZ0103 CARBON RES 1 6W J 10k Ω RCX6JATZ0103 R782 CARB...

Page 54: ...1 6W J 22k Ω RCX6JATZ0223 SWITCHES SW101 TACT SWITCH SKQSAB or SST0101AL038 Ref No Description Part No TACT SWITCH KSM0612B or SST0101HH003 TACT SWITCH SKHHAM SST0101AL029 SW102 TACT SWITCH SKQSAB or SST0101AL038 TACT SWITCH KSM0612B or SST0101HH003 TACT SWITCH SKHHAM SST0101AL029 SW103 TACT SWITCH SKQSAB or SST0101AL038 TACT SWITCH KSM0612B or SST0101HH003 TACT SWITCH SKHHAM SST0101AL029 SW104 TA...

Page 55: ...RBON P O T 5k Ω B or VRCB502KA011 CARBON P O T 5k Ω B VRCB502HH014 VR562 CARBON P O T 20k Ω B or VRCB203KA011 CARBON P O T 20k Ω B VRCB203HH014 VR661 CARBON P O T 50k Ω B or VRCB503KA011 CARBON P O T 50k Ω B VRCB503HH014 X101 X TAL 32 768kHz FXB323LDS002 Ref No Description Part No X351 X TAL 3 579545 MHz FXD355LLN003 Ref No Description Part No CRT CBA Consists of the following CAPACITORS C1502 ELE...

Page 56: ...Ω RN03103DP005 R1521 CARBON RES 1 4W J 1 5k Ω or RCX4JATZ0152 CARBON RES 1 6W J 1 5k Ω RCX6JATZ0152 R1522 CARBON RES 1 4W J 1 5k Ω or RCX4JATZ0152 CARBON RES 1 6W J 1 5k Ω RCX6JATZ0152 R1524 CARBON RES 1 4W J 100 Ω or RCX4JATZ0101 CARBON RES 1 6W J 100 Ω RCX6JATZ0101 R1525 CARBON RES 1 4W J 680 Ω or RCX4JATZ0681 CARBON RES 1 6W J 680 Ω RCX6JATZ0681 R1526 PCB JUMPER D0 6 P5 0 JW5 0T R1528 CARBON RE...

Page 57: ...Printed in Japan 2002 04 10 HO SRT2232S L6250UA ...

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