Panasonic PT-51D31CE, Service Manual

Page 1: ... 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 death Chassis PT 51D31CE AP821 PT 61D31CE AP821 Models ORDER NO MTNC010420A1 B2 This Simplified Service Manual is issued to add liste...

Page 2: ...lect one of the Service Adjustment Modes 1 B Service VCJ SUB DATA Adjustments 2 C Service VCJ CUT OFF Adjustments 3 D Service PINCUSHION Adjustments 4 P Service PIP Adjustments 5 S Service S OPTION Adjustments 6 X Service X OPTION Adjustments 7 V Service Y OPTION Adjustments 8 CHK Normal operation of CHANNEL and VOLUME Exiting the Service Mode Press ACTION and POWER on the PTV simultaneously for a...

Page 3: ...FIXED 20 B0C Sub Contrast Table 3 Service Adj B00 B0C Service Adjustment Adj Range Default Level C00 R Cutoff 0 255 128 C01 G Cutoff RF 0 255 128 C02 B Cutoff 0 255 129 C03 Brightness FIXED 31 C04 G Drive RF 0 127 65 C05 B Drive RF 0 127 66 Table 4 Service Adj C00 C0F C06 G CutOff Video FIXED 127 C07 B CutOff Video FIXED 127 C08 G Drive Video FIXED 127 C09 B Drive Video FIXED 127 C0A G CutOff Comp...

Page 4: ...D 1 S0C Caption Scroll FIXED 1 S0D RGB MTX RF Video FIXED 6 S0E RGB MTX Component FIXED 5 S0F BBE ON OFF FIXED 1 S10 BBE Low Level FIXED 4 S11 BBE High Level FIXED 6 S12 Surround Effect FIXED 3 Table 7 Serviceman Adj S00 S12 Service Adjustment Adj Range Default Level X00 Clip Level FIXED 8 X01 Correct Gain X02 Limit Level FIXED 24 X03 Core Level FIXED 41 X04 C Delay RF FIXED 2 X05 C Delay Video FI...

Page 5: ...DAC C0A G_Video Component to 127 DAC C0B B_Video Component to 127 Set Drive Data DAC C04 G_Drive RF to 64 DAC C05 B_Drive RF to 64 Procedure 1 Use 100 1 probe for measurements 2 Apply a black white pattern See Fig 9 3 Connect scope to TPLR1 and adjust Sub Bright B00 data until voltage measured is 190V 2V See Fig 10 4 Connect scope to TPLG1 and adjust R CutOff C00 data until voltage measured is 190...

Page 6: ...ue or green 6 Use a test signal from a VCR or laser disk that has a pre recorded close up of a signal that has good flesh tones 7 The signal on the VCR or laser disk should look normal Color Check Using a clean RF or video signal set the color level so that it does not saturate or appear harsh Make sure that color is not set so that it appears dull and washed out Look for natural colors try to adj...

Page 7: ... and record the reading Note Pin 34 measurement must have at least four digits of resolution following the decimal point Example 000 0000 3 Place the PTV into Service Mode for making electronic adjustment select the Clock Adjustment DAC S9 and change value to 128 4 Calculate and set S9 based on the following formula Note Pin 34 measurement will not change regardless of the value stored in S09 PIP ...

Page 8: ... 32 ALL MODELS A Board Schematic Left Portion ...

Page 9: ... 33 ALL MODELS A Board Schematic Waveforms WAVEFORMS IC451 Pin 2 67 2Vp p 1 V OUT A Board Q501 COLLECTOR 188Vp p 2 H DRIVE A Board ...

Page 10: ... 34 ALL MODELS P Board Schematic Left Portion ...

Page 11: ...ents IC Transistors Q801 0 00 16 10 4 87 S D G IC802 1 2 3 141 20 10 38 0 00 IC832 1 2 3 11 47 0 00 8 86 Q802 0 71 0 10 0 00 IC801 1 2 3 4 5 6 7 8 9 1 56 0 36 0 17 0 10 0 00 5 16 16 18 0 00 5 96 IC804 1 2 3 4 3 60 3 40 7 48 0 00 IC811 1 2 3 4 11 48 10 45 0 00 5 86 Q854 141 10 0 00 141 30 B C E ...

Page 12: ... 36 ALL MODELS X Board Schematic Left Portion ...

Page 13: ...01 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 4 14 0 00 3 37 3 36 3 36 0 00 8 56 0 00 5 16 0 00 7 55 4 54 2 51 2 49 2 56 8 71 4 93 4 79 4 71 2 07 2 31 1 15 7 28 0 64 5 06 2 00 4 31 3 11 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 3 90 4 15 0 00 0 00 4 60 0 97 1 91 4 33 8 70 3 10 5 92 7 24 5 64 4 77 1 10 0 00 1 71 1 56 2 15 2 1...

Page 14: ... 40 ALL MODELS K G R Board Schematics Layouts K Board Schematic K Board Layout G Board Schematic G Board Layout R Board Schematic R Board Layout ...

Page 15: ...60 9 54 71 30 8 97 B C E Q959 131 40 71 30 132 10 Q961 139 90 132 00 140 50 Q3391 3 21 11 48 2 98 Q3341 2 98 11 99 2 39 Q3342 2 32 0 00 2 92 B C E Q397 8 13 1 46 8 39 Q393 11 98 167 10 0 00 Q394 168 30 216 80 167 90 Q395 166 90 1 09 167 80 Q396 167 80 8 66 167 80 Q964 0 90 8 95 0 34 ...

Page 16: ...0 8 64 175 70 Q373 11 98 175 10 11 46 Q374 176 30 216 60 176 00 Q956 9 94 73 20 9 37 Q955 131 80 73 30 132 30 B C E Q941 0 98 9 38 0 39 Q937 6 84 0 00 7 46 Q938 140 00 132 30 140 50 Q935 7 43 19 01 6 84 Q934 7 43 0 00 8 08 Q936 8 07 19 02 7 49 B C E Q377 8 11 1 54 8 34 IC3371 1 2 3 19 01 0 00 11 99 Q3371 2 98 11 45 2 75 ...

Page 17: ... 1 61 8 34 B C E Q353 11 98 173 20 11 45 Q354 174 50 217 20 174 10 Q3351 3 16 11 46 2 94 Q350 0 00 215 30 0 00 Q351 0 61 0 00 0 00 B C E Q957 131 40 71 70 132 10 Q958 9 65 71 70 9 08 Q356 174 10 8 50 174 00 Q355 173 20 0 74 174 00 LR Board Voltage Measurements ...

Page 18: ... 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 3 23 3 23 0 00 0 00 0 00 0 62 0 14 3 23 3 23 0 00 2 32 1 45 2 84 1 29 0 99 0 00 0 98 3 23 0 99 3 23 1 03 0 00 1 00 0 00 0 98 0 00 Y Board Voltage Measurements IC Transistors Q4315 3 93 4 79 3 24 B C E Q1802 3 39 2 84 4 06 Q1801 0 00 4 08 0 00 Q1803 3 34 2 78 3 94 Q1805 1 10 0 00 1 82 B C E Q1804 1 16 0 00 1 88 Q4310 2 44 4 78 1 79 B C...