Panasonic CT20DC50B - 20" CLR TV/DVD COMBO Service Manual Download Page 9

Page: 9 / 66

- 9 -

Receiver Exploded View

Figure 4. Receiver Exploded View

LOCATION OF COMPONENTS

Cabinet Front

A-Board

Tray Panel

Back Cover

Chassis Rails (L & R)

Panasonic Badge

A-V Rear Bracket

M-Board

Mount Metal Front

Speaker

P-Board

Mount Metal Rear

Buttons

K-Board

DVD Bracket

DVD Unit

G-Board

P-Panel Mounting Metal

Bottom Case Metal

W-Board

DVD Logo Badge

Top Case Metal

IR Guide

珍惜眼前人搜集整理

QQ:362399998 QQ群:12919880

Summary of Contents for CT20DC50B - 20" CLR TV/DVD COMBO

Page 1: ...the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this Service Manual by anyone else could result in serious injury or ...

Page 2: ... well as implosion The magnetic shield limits the X ray radiation around the bell of the picture tube in addition to the restricting magnetic effects When using a picture tube test jig for service ensure that the jig is capable of handling 50kV without causing X ray radiation Before returning a serviced Receiver to the owner the service technician must thoroughly test the unit to ensure that is co...

Page 3: ...djustment 22 Options Adjustment 23 MTS Adjustment 23 Comb Filter Adjustment 24 To Check Purity 25 Instructional Flow Chart for Service Mode 26 Service Adjustments Electronic Control 28 Sub Brightness 28 Video Adjustment Level 28 Sub Contrast 28 Tint Color Adjustment 29 Color Temperature Adjustment 29 Complete Adjustment 29 Horizontal Centering 30 Audio Adjustment 30 MTS Circuit Adjustment 30 Input...

Page 4: ...cture during removal Chip Component Installation 1 Put a small amount of solder on the board soldering pads 2 Hold the chip component against the soldering pads with tweezers or with a miniature alligator clip and apply heat to the pad area with a 30 watt iron until solder flows Do not apply heat for more than 3 seconds How to Replace Flat IC Required Tools 1 Remove the solder from all of the pins...

Page 5: ...nt exceed a predetermined level this protective circuit activates and detunes the horizontal oscillator that limits the high voltage The over voltage protection circuit is not adjustable However if components indicated by the symbol on the schematic in either the horizontal sweep system or the over voltage protection circuit itself are changed the operation of the circuit should be checked using t...

Page 6: ... mm WxDxH in 595 x 563 5 x 580 4 23 4 x 22 2 x 22 9 Weight kg lbs 24 5 53 9 Power source V Hz 120 60 Anode voltage 27 70kV 1 25kV Video input jack 1Vp p 75 phono jack Audio input jack 500mV RMS 47k FEATURE BOARD PART NUMBER DESCRIPTION A TNPH0353AB Main Chassis C TNP2AA047AA CRT Output G TNPA1736 Video Input front JJ TNPA1804 A V Switch and A V Decoder K TNPA1737 Customer Controls M TNPA1734 DVD T...

Page 7: ...e Control Infrared codes the TV AUX CABLE switch must be set in CABLE position Action Press to display Main Menu and access On Screen features and Adjustment Menus TV Video Press to select TV or Video Input Skip Search Press to search all channels tracks Play Play DVD CD or VHS tape Stop Stop playing DVD CD or VHS tape Skip Search Skip or search DVD CD or VHS Still Pause Pause DVD CD or VHS while ...

Page 8: ...de R TUNE Press to switch to previously viewed channel or video mode CH Press to select next channel and navigate in menus RECALL DISPLAY Press to display time channel sleep timer and other options Display On Screen menus in DVD mode SKIP REW PLAY SKIP FF CANCEL TV VCR STOP STILL PAUSE REC SEARCH Component function buttons REMOTE CONTROL ACTION Press to access menu or enter selections LIGHT Press ...

Page 9: ...er 10 Chassis Rails L R 18 Panasonic Badge 3 A V Rear Bracket 11 M Board 19 Mount Metal Front 4 Speaker 12 P Board 20 Mount Metal Rear 5 Buttons 13 K Board 21 DVD Bracket 6 DVD Unit 14 G Board 22 P Panel Mounting Metal 7 Bottom Case Metal 15 W Board 23 DVD Logo Badge 8 Top Case Metal 16 IR Guide 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 10: ...D bracket and A Board press on the tabs located at the bottom of the cabinet and pull forward 2 Press on the tabs located on the DVD bracket to release the A Board from the hardware Note Some tie wraps that secure the wire dressings may need to be unfastened for chassis removal C Board CRT Output Socket plugs onto the CRT neck Figure 6 C Board Assembly G Board Video Input Front Fastened to the fro...

Page 11: ... attached CRT Replacement 1 Perform Disassembly for CRT Replacement procedure 2 Insure that the CRT H V Anode button is discharged before handling the CRT Read Safety Precautions on page 2 on handling the picture tube 3 Remove the components from the CRT neck and place the cabinet face down on a soft pad 4 Note the original order for the CRT mounting hardware as they are removed from the CRT mount...

Page 12: ...ail from the DVD bracket See items 10 and 21 on page 9 Then remove the W Board located underneath the DVD that is secured to the DVD case with 2 screws Reinstall in reverse order of disassembling Reuse hardware and flat cable Remove the shipping grounding plug from the underside of the DVD unit Verify that the ferrite beads are installed on the cables connecting to the DVD unit See Fig 14 through ...

Page 13: ... 13 Figure 14 DVD Unit Connection Figure 15 DVD Unit Shipping Grounding Plug Removal W Board Flat cable DVD Shipping Plug Grounding 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 14: ...lyback 2 IC 002 EEPROM 10 C Board 15 Q551 HOR 17 A V Jacks 3 IC 101 VCJ 11 JJ Board 18 Fuse F801 4 IC 6501 3L Filter 12 M Board 19 Tuner 5 IC 451 Vertical 13 P Board 20 Speaker 6 IC 552 REG 21 Anode 7 IC 803 REG 22 CRT 8 IC 2302 Audio Out 23 Deflection Yoke 13 20 10 16 17 19 22 23 Rear 21 3 19 11 16 13 17 18 12 1 4 15 14 5 2 6 7 9 Front 8 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 15: ... 15 Figure 17 Side View P Board Figure 18 Side View M Board Tuner JJ Board Figure 19 Side View P Board Mounting Rail 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 16: ...ing from the A Board to the G Board are replaced the ferrite beads are installed See Fig 21 Figure 21 G Board Cables Ferrite Beads Assembly G Board G1 G2 A25 Ferrite Bead A26 IMPORTANT NOTE Reuse hardware screws bolts connectors etc upon reassembling the Receiver 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 17: ...enu Use cold ground for the lead of the DVM Adjust Picture Menu for normalized video adjustments High Voltage Check 1 Select an active TV channel and confirm that horizontal is in sync 2 Adjust Brightness and Picture using Picture Icon menu so video just disappears 3 Using a high voltage meter confirm that the High Voltage at the CRT anode is 27 70kV 1 25kV 4 Normalize picture settings DVD Voltage...

Page 18: ...Operate the Receiver for 60 minutes using the first Purity Check field white screen to stabilize the CRT Fully degauss the Receiver by using an external degaussing coil Slide the deflection yoke back and forth on the neck of the CRT until it produces a near white uniform raster Vertical Raster Shift Adjustment Only for Models with Purity Convergence Assembly with 4 Pairs of Rings Apply a green pat...

Page 19: ...rity is obtained on each respective field Press Recall on the Remote Control again until Purity check white screen appears Observe the screen for uniform white If purity has not been achieved repeat the above procedure Final Convergence Procedure See Fig 29 through Fig 32 Note Vertical size and focus adjustments must be completed prior to performing the convergence adjustment Connect a dot pattern...

Page 20: ...ertical Yoke Movement Figure 30 Horizontal Yoke Movement Figure 31 Convergence Magnets and Wedges Location Note For models using 4 pairs of rings assemblies see Fig 24 for details 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 21: ...ote Three additional indicators appear on screen One is the five digit usage in hours and the other two are four digits for V Chip Main and Child ratings Indicators are hexadecimal numbers 8 Press Power on the Remote Control to select one of seven Service Adjustment Modes 1 B Service VCJ SUB DATA adjustment 2 C Service VCJ CUT OFF adjustment 3 M Service MTS adjustments 4 S Service OPTIONS adjustme...

Page 22: ...DRIVE B 0 127 64 C5 YNR SWITCH 0 1 0 C6 AFT 0 1 0 255 1 120 C7 RF AGC 0 127 64 C8 YNR VIDEO ADJUSTMENT 0 7 0 C9 HORIZONTAL CENTER 0 31 11 Ca BEAM LIMIT 0 7 4 Cb VCJ TEST H 0 2 0 1 Press Channel Up Down on the Remote Control to select one of the available Service Adjustments a in Fig 32 Note Write Down the original value set b in Fig 32 for each address before modifying anything It is easy to erron...

Page 23: ... PIP TINT 0 63 50 Sd LOUDNESS COMPENSATION 0 63 52 MTS Adjustment Adj Range Default Level M0 INPUT LEVEL 0 63 33 M1 HIGH LEVEL SEPARATION 0 63 25 M2 LOW LEVEL SEPARATION 0 16 6 1 Press Channel Up Down on the Remote Control to select one of the available Service Adjustments a in Fig 32 Note Write Down the original value set b in Fig 32 for each address before modifying anything It is easy to errone...

Page 24: ...24 X8 COMB SHARP 0 255 30 X9 COMB VM LEVEL 0 255 255 Xa COMB VMPKF 0 1 01 Xb COMB ADJ SHARP 0 63 15 1 Press Channel Up Down on the Remote Control to select one of the available Service Adjustments a in Fig 32 Note Write Down the original value set b in Fig 32 for each address before modifying anything It is easy to erroneously adjust the wrong item 2 Press Volume Up Down on the Remote Control to a...

Page 25: ...n and operating in Normal Mode momentarily short test point FA1 TP8 to Cold Ground FA2 TP3 A Board THE RECEIVER ENTERS THE AGING MODE Yellow letters CHK appear in the upper left corner of the CRT The Volume Up Down will adjust rapidly 2 Simultaneously press Action and Volume Up on the Receiver Control Panel THE RECEIVER ENTERS THE SERVICE MODE The letter in CHK turn red The Volume Up Down will adj...

Page 26: ...MODE Yellow CHK appears in upper left corner of screen Volume Up Down operate rapidly Customer Controls are set to nominal level SERVICE MODE CHK turns red Volume Up Down operate normally Customer Controls are set to nominal level SUB DATA ADJUSTMENTS B ITEMS A QUICK ENTRY TO SERVICE MODE Select CABLE Mode Set SLEEP time for 30 Min Tune to Channel 124 Adjust Volume to minimum Press VOL DOWN On Rec...

Page 27: ...REMOTE CH ON REMOTE CH ON REMOTE CH ON REMOTE CH POWER ON REMOTE ON REMOTE CH POWER ON REMOTE POWER ON REMOTE POWER ON REMOTE ON REMOTE CH Sd LOUDNESS COMPENSATION Sc PIP TINT Sb CLOCK ADJUSTMENT Sa FREERUN S9 RIGH 1 16 S8 LEFT 1 16 S7 DOWN 1 16 S6 UP 1 16 S5 RIGH 1 9 S4 LEFT 1 9 S3 DOWN 1 9 S2 UP 1 9 S1 PIP CONTRAST S0 PIP COLOR M2 LOW LEVEL SEPARATION M1 HIGH LEVEL SEPARATION M0 INPUT LEVEL Xb C...

Page 28: ...itude ratio between the sync signal to detection output is within the range of 30 5 S S P 30 5 3 Set the DAC Sub Contrast Adjustment B3 Sub Contrast Service DAC Adjustment B3 This adjustment is factory set Do not adjust unless repairs are made to associated circuit the CRT Board or when the CRT is replaced Preparation 1 Apply a color bar signal pattern with 87 5 modulation 70 saturated color bar w...

Page 29: ...GRN C2 BLU and adjust the picture for gray 2 HIGH LIGHT areas In Service Mode for making electronic adjustments select Drive C3 RED C4 BLU and adjust the picture for warm whites Complete Adjustment Preparation 1 Turn the Receiver ON and allow 10 minutes warm up at high brightness 2 Apply a color bar signal with color OFF 3 Turn the SCREEN control part of FBT T551 fully counterclockwise Procedure P...

Page 30: ... 1 In the Service Mode for making electronic adjustments Select the Horizontal Centering Adjustment DAC C9 and adjust until the center of the crosshatch pattern is centered on CRT 2 EXIT the Service Adjustment Mode Audio Adjustment Service DAC Adjustment B6 This adjustment is factory set and needs to be performed only when IC002 or IC101 is replaced Preparation 1 Apply the following signal at the ...

Page 31: ...ock Adjustment DAC Sb 5 Calculate and set Sb based on the following formula Note Pin 13 measurement will not change regardless of the value stored in Sb Vertical Size B7 Adjust the VERTICAL SIZE DAC control B7 until the top and the bottom edges of the raster are visible and touch the bezel edge Best results can de obtained with a round test pattern Linearity adjustment is done automatically when t...

Page 32: ... 32 Audio Signal Path Block Diagram Figure 45 Audio Signal Path Block Diagram 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 33: ... 33 Video Chroma Signal Path Block Diagram Figure 46 Video Chroma Path Block Diagram 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 34: ... 34 IC101 IN OUT Pins and Functions VCJ Figure 47 IC101 IN OUT Pins and Functions VCJ 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 35: ... 35 IC001 IN OUT Pins and Functions MPU Figure 48 IC001 IN OUT Pins and Functions MPU 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 36: ... 36 NOTES 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 37: ...22B CAP E 22UF 50V C201 ECJ2VF1H103Z CAP C 01UF Z 50V C202 ECJ2VC1H101J CAP C 100PF J 50V C203 ECA1HM4R7B CAP E 4 7UF 50V C301 ECJ2VC1H390J CAP C 39PF J 50V C302 EEANA1E1R0B CAP E 1 0UF 25V C304 ECEA1HNR47UB CAP E 47UF 50V C305 ECA1HM4R7B CAP E 4 7UF 50V C306 ECA1CM221B CAP E 220UF 16V C308 ECQB1H823JM3 CAP P 082UF J 50V C309 ECA1CM101B CAP E 100UF 16V C310 ECA1HM4R7B CAP E 4 7UF 50V C311 ECA1HM4R...

Page 38: ...889 ECA1AHG102B CAP E 1000UF 10V C891 ECA0JM102B CAP E 1000UF 6 3V C892 EEUFC1V151B CAP E 150UF 35V C893 ECA1HHG330B CAP E 33UF 50V C894 EEUFC1V151B CAP E 150UF 35V C895 ECA1HHG330B CAP E 33UF 50V REF NO PART NO DESCRIPTION C896 EEUFC1E331B CAP E 330UF 25V C897 ECA1EHG221B CAP E 220UF 25V C898 ECA1CHG221B CAP E 220UF 16V C2201 ECA1HM4R7B CAP E 4 7UF 50V C2202 ECA1HM2R2B CAP E 2 2UF 50V C2203 ECA1H...

Page 39: ... EEUFC1C471B CAP E 470UF 16V C3624 ECA0JM102B CAP E 1000UF 6 3V C3625 ECA0JM102B CAP E 1000UF 6 3V C3626 ECJ2VB1H331K CAP C 330PF K 50V C3627 ECJ2VB1H331K CAP C 330PF K 50V C3628 ECJ2VF1H104Z CAP C 1UF Z 50V C4138 ECJ2VF1H103Z CAP C 01UF Z 50V C4591 ECEA1CKA101B CAP E 100UF 16V REF NO PART NO DESCRIPTION C4592 ECKR1H103ZF5 CAP C 01UF Z 50V C6501 ECA0JM101B CAP E 100UF 6 3V C6502 ECJ2VF1H103Z CAP C...

Page 40: ...ER D3002 MA4110MTA DIODE ZENER D3003 MA4110MTA DIODE ZENER D3004 MA4110MTA DIODE ZENER D3005 MA4110MTA DIODE ZENER D3006 MA4110MTA DIODE ZENER REF NO PART NO DESCRIPTION D3007 MA4110MTA DIODE ZENER D3008 MA4110MTA DIODE ZENER D3009 MA4110MTA DIODE ZENER D3010 MA4110MTA DIODE ZENER D3013 MA4110MTA DIODE ZENER D3014 MA4110MTA DIODE ZENER D3015 MA4110MTA DIODE ZENER D3016 MA4110MTA DIODE ZENER D3017 ...

Page 41: ...57 COIL L6501 ELESN150KA COIL PEAKING 15UH L6502 ELESN330JA COIL PEAKING 33UH L6504 ELESN330JA COIL PEAKING 33UH L6505 ELESN330JA COIL PEAKING 33UH L6507 ELESN150KA COIL PEAKING 15UH L6508 EXCELSA39V FERRITE BEAD L6510 EXCELSA35V FERRITE BEAD REF NO PART NO DESCRIPTION TRANSISTORS Q001 2SD601ARTX TRANSISTOR Q002 2SC1685QRSTA TRANSISTOR Q003 2SB709ARTX TRANSISTOR Q004 2SB709ARTX TRANSISTOR Q302 2SD...

Page 42: ...V RES M 56 J 1 10W R062 ERJ6GEYJ560V RES M 56 J 1 10W R063 ERJ6GEYJ560V RES M 56 J 1 10W R064 ERJ6GEYJ560V RES M 56 J 1 10W R065 ERJ6GEYJ471V RES M 470 J 1 10W REF NO PART NO DESCRIPTION R066 ERJ6GEYJ222V RES M 2 2K J 1 10W R067 ERJ6GEYJ222V RES M 2 2K J 1 10W R068 ERJ6GEYJ222V RES M 2 2K J 1 10W R069 ERJ6GEYJ560V RES M 56 J 1 10W R070 ERJ6GEYJ560V RES M 56 J 1 10W R071 ERJ6GEYJ560V RES M 56 J 1 1...

Page 43: ...J 1 10W R557 ERJ6GEYJ103V RES M 10K J 1 10W R558 ERQ2CJP2R2S RES F 2 2 J 2W R559 ERG2FJ683H RES M 12K J 2W R560 ERDS1FJ182P RES C 1 8K J 1 2W R563 ERDS2TJ124T RES C 120K J 1 4W R564 ERDS2TJ104T RES C 100K J 1 4W REF NO PART NO DESCRIPTION R565 ERJ6GEYJ103V RES M 10K J 1 10W R567 ERG2FJ122H RES M 12K J 2W R574 ERG2FJ330H RES M 33 J 2W R602 ERJ6GEYJ331V RES M 330 J 1 10W R603 ERJ6GEYJ331V RES M 330 ...

Page 44: ...R2419 ERJ6GEYJ471V RES M 470 J 1 10W R3011 ERJ6GEYJ750V RES M 75 J 1 10W R3012 ERJ6GEYJ101V RES M 100 J 1 10W R3013 ERDS2TJ682T RES C 6 8K J 1 4W R3014 ERDS2TJ682T RES C 6 8K J 1 4W REF NO PART NO DESCRIPTION R3017 ERJ6GEYJ750V RES M 75 J 1 10W R3019 ERJ6GEYJ750V RES M 75 J 1 10W R3021 ERDS2TJ682T RES C 6 8K J 1 4W R3026 ERDS2TJ331T RES C 330 J 1 4W R3028 ERDS2TJ682T RES C 6 8K J 1 4W R3033 ERJ6GE...

Page 45: ... M 1K J 1 10W R6516 ERJ6GEYJ103V RES M 10K J 1 10W R6517 ERJ6GEYJ562V RES M 5 6K J 1 10W R6518 ERJ6GEYJ333V RES M 33K J 1 10W R6519 ERJ6GEYJ333V RES M 33K J 1 10W R6520 ERJ6GEYJ511V RES M 510 J 1 10W R6521 ERJ6GEYJ102V RES M 1K J 1 10W R6522 ERJ6GEYJ102V RES M 1K J 1 10W R6523 ERJ6GEYJ562V RES M 5 6K J 1 10W R6524 ERJ6GEYJ471V RES M 470 J 1 10W REF NO PART NO DESCRIPTION R6526 ERJ6GEYJ102V RES M 1...

Page 46: ...ONT Cabinet Front 32 Pad Foam REF NO PART NO DESCRIPTION M009 TXFKU61BSER ASSY CABINET BACK Cover Cabinet Labels Felt M010 TNAX007S ASSY DVD UNIT Badge DVD Level Panel Tray Assy DVD Unit M011 TXANV03ESER REPAIR KIT DEGAUSSING COIL M012 EASG65P506A2 SPEAKER M013 TBM2AA0041 BADGE DVD LEVEL M014 TBM2A10143 BADGE PANASONIC M015 TKP2AA0292S PANEL TRAY M016 TKX2AA0071 IR GUIDE M017 TKX2AA0081 IR HOLDER ...

Page 47: ...nding on the type of Oscilloscope used and its settings 5 Ground symbol shown on waveform number indicates Hot ground lead connection of the Oscilloscope CAUTION Incorrect ground connection of the test equipment will result in erroneous readings 3 VOLTAGE MEASUREMENTS 1 Voltage measurement AC input to the Receiver is 120V NTSC HD 1125i 525P when applicable signal generator is connected to the ante...

Page 48: ...y el contenido de la imagen Las fuentes de voltajes son nominales 2 El símbolo indica el tipo de tierra que se utiliza en la conexión del medidor PRECAUCION SI no se utiliza la conexión a la tierra adecuada se obtendrán mediciones equivocadas y podría dañar el equipo de medición MEDICIÓN DE FORMAS DE ONDA 1 Un símbolo como indica el punto para medir una señal La medición puede hacerse en el punto ...

Page 49: ...ectric shock 2 Do not short HOT section to COLD section That could blow the fuse or damage components 3 Never measure HOT and COLD sections at the same time when using tools such as oscilloscopes or multi meters 4 Always unplug the unit before beginning any operation such as removing the chassis Non Flammable Solid Metal Oxide Metal Precision and high stability Wire Wound Thermistor Fusible Positi...

Page 50: ... 50 Schematic Notes PARTS LIST 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 51: ...splay traces otherwise hidden by a mask Descripción de tarjetas Tarjeta A Chasis principal Tarjeta C Control del TRC Tarjeta G Entrada de video frontales Tarjeta JJ Ampificador A V Tarjeta K Controles del usuario Tarjeta M Interfase UCP DVD TV Tarjeta P Fuente de poder del DVD Tarjeta W Interfase del DVD Boards Designation A Board Main Chassis C Board CRT Drive G Board Front Video Input JJ Board A...

Page 52: ... 52 A BOARD SCHEMATIC LEFT PORTION DIAGRAMA ELÉCTRICO TARJETA A SECCIÓN IZQUIERDA A BOARD TARJETA A 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 53: ...ATIC RIGHT PORTION DIAGRAMA ELÉCTRICO TARJETA A SECCIÓN DERECHA A BOARD TARJETA A B E C CHIP TRANSISTOR LEAD DESIGNATION B E C IDENTIFICACIÓN DE TERMINALES PARA TRANSISTORES EN CHIP 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 54: ... 54 JJ BOARD SCHEMATIC LEFT PORTION DIAGRAMA ELÉCTRICO TARJETA JJ SECCIÓN IZQUIERDA JJ BOARD TARJETA JJ 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 55: ...TIC RIGHT PORTION DIAGRAMA ELÉCTRICO TARJETA JJ SECCIÓN DERECHA JJ BOARD TARJETA JJ B E C CHIP TRANSISTOR LEAD DESIGNATION B E C IDENTIFICACIÓN DE TERMINALES PARA TRANSISTORES EN CHIP 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 56: ...00 0 74 0 85 GND 4 17 4 95 0 87 1 82 0 93 2 07 4 95 IC3501 1 2 3 4 5 6 7 8 9 10 11 12 13 14 4 96 3 27 0 00 0 00 0 22 4 95 GND 4 17 4 96 0 79 0 79 4 96 2 69 4 95 Nota Los circuitos impresos las tarjetas han sido modificados par mayor claridad Note The board layouts were modified to enhance and display traces otherwise hidden by a mask 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 57: ... IC803 1 2 3 4 5 88 00 130 10 300 60 130 00 130 00 IC2201 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 25 2 18 2 18 2 27 2 24 0 29 4 95 2 43 2 46 0 40 2 24 3 22 3 38 2 18 3 39 3 48 GND 5 27 0 24 n c 2 25 2 20 2 18 2 18 IC451 1 2 3 4 5 6 7 8 9 10 11 12 13 0 00 4 72 4 07 4 12 0 00 4 07 3 75 26 80 2 64 n c GND 15 27 27 60 IC2302 1 2 3 4 5 6 7 8 9 10 11 12 6 15 6 80 0 21 6 19 6 80 ...

Page 58: ... 58 P BOARD SCHEMATIC DIAGRAMA ELÉCTRICO TARJETA P P BOARD TARJETA P 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 59: ...C E Q886 0 00 5 10 GND B C E Q7545 22 12 0 16 22 23 G D S Q885 5 10 0 00 5 10 IC896 1 2 3 4 5 GND 0 00 0 00 0 00 9 41 Q867 69 30 69 40 GND Q871 69 80 68 80 GND Q872 69 30 75 60 69 00 Q873 68 00 69 00 GND Nota Los circuitos impresos las tarjetas han sido modificados par mayor claridad Note The board layouts were modified to enhance and display traces otherwise hidden by a mask 珍惜眼前人搜集整理 QQ 3623999...

Page 60: ...RCUITO IMPRESO TARJETA W W BOARD TARJETA W Nota Los circuitos impresos las tarjetas han sido modificados par mayor claridad Note The board layouts were modified to enhance and display traces otherwise hidden by a mask 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 61: ...imeter The board layouts were modified to enhance and display traces otherwise hidden by a mask B C E Q3601 8 88 0 00 9 63 IC3603 1 2 3 4 5 6 7 8 9 10 11 12 n c 0 00 0 00 GND GND 0 00 0 00 GND GND GND GND GND 13 14 15 16 17 18 19 20 21 22 23 24 GND GND n c n c 0 00 0 00 GND 0 00 n c 0 00 0 00 0 00 IC3002 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0 00 0 00 2 20 2 20 2 25 0 00 9 00 GND 5 24 2 25 0 19 4...

Page 62: ... 62 A BOARD LAYOUT CIRCUITO IMPRESO TARJETA A A BOARD TARJETA A 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 63: ... la lista de partes Obtenga los voltajes con un voltímetro digital Los circuitos impresos las tarjetas han sido modificados par mayor claridad Notes Check Parts List for most recent component values and part numbers Obtain voltages with a digital multimeter The board layouts were modified to enhance and display traces otherwise hidden by a mask B C E Q351 3 26 170 00 3 00 Q353 3 32 165 70 3 02 Q35...

Page 64: ...14 PIN 2 R TP47R 6 4 2V p p 5ms IC101 PIN 52 VERT OUT 10 14 NOT APPLICABLE 174 0V p p 20µs Q501 Collector H DRIVE 18 324 0V p p 5µs Q802 Collector 22 1 9V p p 20µs IC101 PIN 39 Y IN 3 3 8V p p 20µs A14 PIN 3 G TP47G 7 1 7V p p 5ms IC451 PIN 7 DRIVE 11 IC101 PIN 48 H OSC OSC 503KHz X tal 15 256 0V p p 20µs T551 PIN 1 19 0 4V p p 20µs IC101 PIN 43 C IN 4 4 2V p p 20µs A14 PIN 4 B TP47B 8 54 4V p p 5...

Page 65: ... 65 Notes 珍惜眼前人搜集整理 QQ 362399998 QQ群 12919880 ...

Page 66: ... HORIZONTAL CENTER 0 31 11 Ca BEAM LIMIT 0 7 4 Cb VCJ TEST H 0 2 0 MTS Adjustments M0 INPUT LEVEL 0 63 33 M1 HIGH LEVEL SEPARATION 0 63 25 M2 LOW LEVEL SEPARATION 0 16 6 Mode Service Adjustment Adjustment Range Def Val Original Value New Value Options Adjustments S0 PIP COLOR 0 127 80 S1 PIP CONTRAST 0 127 52 S2 UP 1 9 0 255 26 S3 DOWN 1 9 0 255 146 S4 LEFT 1 9 0 255 9 S5 RIGH 1 9 0 255 103 S6 UP ...

Search results

Summary of Contents for CT20DC50B - 20" CLR TV/DVD COMBO

Reviews:

Related manuals for CT20DC50B - 20" CLR TV/DVD COMBO

Brands by name

Popular brands

Panasonic CT20DC50B - 20" CLR TV/DVD COMBO, Service Manual

Search results

Summary of Contents for CT20DC50B - 20" CLR TV/DVD COMBO

Reviews:

Related manuals for CT20DC50B - 20" CLR TV/DVD COMBO

Brands by name

Popular brands