Sharp 26MR30 Service Manual Download Page 16 | Manualshive

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Sharp 26MR30 Service Manual Download Page 16

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26MR30

PRINTED WIRING BOARD ASSEMBLIES

PWB-H: FRONT A/V Unit (Wiring Side)

PWB-B: CRT Unit (Wiring Side)

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Summary of Contents for 26MR30

Page 1: ...t has been published to be used for after sales service only The contents are subject to change without notice MODEL POWER INPUT 120 V AC 60 Hz POWER RATING 95 W PICTURE SIZE 2 032cm2 315sq inch CONVERGENCE Magnetic SWEEP DEFLECTION Magnetic FOCUS Hi Bi Potential Electrostatic INTERMEDIATE FREQUENCIES Picture IF Carrier Frequency 45 75 MHz Sound IF Carrier Frequency 41 25 MHz Color Sub Carrier Fre...

Page 2: ...is meter should be checked periodically 3 High voltage should always be kept at the rated value no higher Operation at higher voltages may cause a failure of the picture tube or high voltage circuitry and also under certain conditions may produce radiation in exceeding of desirable levels 4 When the high voltage regulator is operating properly there is no possibilityof an X radiationproblem Every ...

Page 3: ... a 0 15 F capacitorin series with all exposed metal cabinet parts and a known earth ground such as electrical conduit or electrical ground connected to earth ground Use an AC voltmeter having with 5000 ohm per volt or higher sensitivity to measure the AC voltage drop across the resistor 1 5k ohm 10W 0 15 F TEST PROBE TO EXPOSED METAL PARTS CONNECT TO KNOWN EARTH GROUND For continued protection rep...

Page 4: ... channel when in Closed Caption mode Basic Remote Control Functions Front Panel CHANNEL UP DOWN Selects next higher channel Selects next lower channel Press both at same time to access MAIN MENU screen SENSOR AREA FOR REMOTE CONTROL VOLUME UP DOWN Increases sound Decreases sound POWER Press On Press again Off VIDEO AUDIO IN TERMINALS POWER Press On Press again Off REMOTE KEYPAD Accesses any channe...

Page 5: ...tion of the horizontal oscillator does not stop in step 5 the circuit must be repaired before the set is returned to the customer HIGH VOLTAGE CHECK High voltage is not adjustable but must be checked to verify that the receiver is operating within safe and efficient design limitations as specified checks should be as follows 1 Connect an accurate high voltage meter between ground and anode of pict...

Page 6: ...mode Use the reset function in the video adjustment menu to ensure customer control are in their proper reset position 2 Service number selection In the service mode you will see the window screen as window There are 3 adjustment categories DEF SIGNAL FIX VALUE as show in Figure A Press CH UP DOWN button for selection and enter by VOL UP or VOL DOWN Press CH UP DOWN button to select the adjustment...

Page 7: ...Y PRI 00 03 00 00 F19 CORING 00 07 04 04 F20 DC REST 00 03 02 02 F21 BS START 00 03 01 01 F22 BS GAIN 00 03 01 01 F23 ABL START 00 07 00 00 F24 R B ANGLE 00 0F 08 08 F25 H BLK R 00 0F 04 03 F26 H BLK L 00 0F 04 00 SERVICE POSITION ADJUST ITEM DATA RANGE INITIAL VALUE Hex Table A Below are the ranges and initial values for each adjustment and in each categories DEF D01 H PHASE 00 1F 0C D02 V SIZE 0...

Page 8: ...r more than 2 seconds will automatically write the above initial values into IC2102 X X ADJUSTMENT NECESSARY UNNECESSARY PART REPLACED NOTES SIGNAL S01 RF AGC 00 3F 14 S02 VIDEO LEVEL 00 07 03 S03 Y MUTE 00 03 00 01 Y MUTE 02 V STOP Y MUTE 03 Activate color killer circuit S04 SUB BIAS 00 FF 40 Must be 30 S05 R BIAS 00 FF 00 S06 G BIAS 00 FF 00 S07 B BIAS 00 7F 00 S08 R DRIVE 00 7F 40 S09 B DRIVE 0...

Page 9: ...ta to minimum level 00 4 Select the service adjustment S03 and set the data value to 01 to turn off the luminance signal Y mute 5 Select the service adjustment S13 and adjust the data value to obtain 2 35 volts as shown in Figure B 6 Adjust the master screen control until the raster darkens to the point where raster is barely seen 7 Adjust the service adjustment S05 red S06 green S07 blue to obtai...

Page 10: ...local channel 2 Enter the service mode DEF category and select the adjustment D01 3 Adjust D01 data value to center the picture Vertical Phase Adjustment 1 Receive a good local channel 2 Enter the service mode DEF category and select the adjustment D03 3 Adjust D03 bus data to get the most acceptable vertical position Note The step range is 20 32 12 3 steps 20 5 steps Push once move 4 steps Captio...

Page 11: ...11 6 5 4 3 2 1 A B C D E F G H 26MR30 CHASSIS LAYOUT ...

Page 12: ...12 6 5 4 3 2 1 A B C D E F G H 26MR30 BLOCK DIAGRAM ...

Page 13: ...ormal picture unless otherwise indicated 2 All voltages measured with 1000µ V B W or Color signal WAVEFORM MEASUREMENT CONDITIONS 1 Photographs taken on a standard gated color bar signal the tint setting adjusted for proper color The wave shapes at the red green and blue cathodesof the picture tube depend on the tint color level and picture control 2 indicates waveform check points See chart wavef...

Page 14: ...15 14 26MR30 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H SCHEMA TIC DIAGRAM MAIN Unit ...

Page 15: ...16 6 5 4 3 2 1 A B C D E F G H 26MR30 SCHEMATIC DIAGRAM CRT and FRONT A V Unit ...

Page 16: ...17 6 5 4 3 2 1 A B C D E F G H 26MR30 PRINTED WIRING BOARD ASSEMBLIES PWB H FRONT A V Unit Wiring Side PWB B CRT Unit Wiring Side ...

Page 17: ...19 18 26MR30 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Wiring Side ...

Page 18: ...21 20 26MR30 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Chip Parts Side ...

Page 19: ...1 VHiLA7840 1 J LA7840 AR IC701 VHiTEA1507 1 J TEA1507P N1 AL IC702 RH FX0034CEZZ J PC817 AE or RH FX0002GEZZ or RH FX0029CEZZ IC771 VHiKA7805AP 1 J KA7805API AE or VHiTA7805S 1 IC2001 RH iX3492CEZZQ X TMPA8700CPF AT IC2040 VHiPST994C 1 J PST994C AD IC2102 VHiBR2416E2 1 J BR24C16F AK or VHiSLA24C16 1 TRANSISTORS Q101 VS2SC3198 Y 1 J 2SC3198 Y AA or VS2SC945AQ 1 Q201 VS2SC2735 1E J 2SC2735 AC Q451 ...

Page 20: ...Z J Diode AC or RH DX0490CEZZ or RH DX0279CEZZ D707 VHD1SS119 1 J Diode AB or VHD1SS244 1 D708 VHD1SS119 1 J Diode AB or VHD1SS244 1 D709 RH DX0229CEZZ J Diode AF D712 RH DX0487CEZZ J Diode AC or RH DX0302CEZZ or RH DX0468CEZZ or RH DX0488CEZZ or RH DX0513CEZZ D717 RH EX0616GEZZ J Zener Diode 5 6V AA D725 RH DX0131CEZZ J Diode AC D726 VHD1SS119 1 J Diode AB or RH DX0475CEZZ D732 VHD1SS119 1 J Diod...

Page 21: ... 50V EL AB C637 VCEA0A1CW476M J 47 16V EL AB C638 VCEA0A1AW477M J 470 10V EL AC C652 VCEA0A1HW475M J 4 7 50V EL AB C653 VCEA0A1HW105M J 1 0 50V EL AB C654 VCKYCY1CB224K X 0 22 16V Ceramic AE C662 VCEA0A1CW477M J 470 16V EL AC C701 RC FZ037SCEZZ J 0 22 AC250V Plastic AD or RC FZ012SGEZZ or RC FZ017SCEZZ or RC FZ029SCEZZ C702 RC KZ0029CEZZ J 0 01 AC250V Ceramic AC or RC KZ0016CEZZ C703 RC KZ0029CEZZ...

Page 22: ...60k 1 4W Carbon AA R461 VRS CY1JF274J J 270k 1 16W M Ox AA R462 VRS CY1JF563J J 56k 1 16W M Ox AA R491 VRS CY1JF102J J 1 0k 1 16W M Ox AA R492 VRS CY1JF102J J 1 0k 1 16W M Ox AA R493 VRS CY1JF102J J 1 0k 1 16W M Ox AA R494 VRS CY1JF472J J 4 7k 1 16W M Ox AA R496 VRS CY1JF472J J 4 7k 1 16W M Ox AA R497 VRS CY1JF102J J 1 0k 1 16W M Ox AA R512 VRD RM2HD102J J 1 0k 1 2W Carbon AA R513 VRD RM2HD102J J ...

Page 23: ...103J J 10k 1 16W M Ox AA R2068 VRS CY1JF103J J 10k 1 16W M Ox AA R2070 VRS CY1JF103J J 10k 1 16W M Ox AA R2072 VRS CY1JF103J J 10k 1 16W M Ox AA R2101 VRS CY1JF101J J 100 1 16W M Ox AA R2102 VRS CY1JF101J J 100 1 16W M Ox AA R2201 VRS CY1JF103J J 10k 1 16W M Ox AA R2202 VRS CY1JF473J J 47k 1 16W M Ox AA R2203 VRS CY1JF332J J 3 3k 1 16W M Ox AA R2211 VRS CY1JF222J J 2 2k 1 16W M Ox AA R2212 VRS CY1...

Page 24: ...A2BE471J J 470 1 8W Carbon AA R856 VRD RA2BE221J J 220 1 8W Carbon AA R857 VRS VV3LB123J J 12k 3W M Ox AB R858 VRD RM2HD222J J 2 2k 1 2W Carbon AA R859 VRD RA2BE470J J 47 1 8W Carbon AA R860 VRD RA2BE181J J 180 1 8W Carbon AA R861 VRD RA2BE121J J 120 1 8W Carbon AA R863 VRD RA2BE471J J 470 1 8W Carbon AA R864 VRD RA2BE221J J 220 1 8W Carbon AA R865 VRS VV3LB123J J 12k 3W M Ox AB R866 VRD RM2HD222J...

Page 25: ...003 QJAKE0055GEZZ J Jack Audio In AD P1001 QPLGN0541CEZZ J Plug 5 pin HA AB RRMCG1339CESB X Infrared R C Unit AQ TiNS 7288GJZZ X Operation Manual AG PACKING PARTS NOT REPLACEMENTITEM 1 CCABA0142WEH0 X Front Cabinet Ass y BB 1 1 Not Available Front Cabinet 1 2 GCOVA0108GJKA X R C Cover AG 1 3 HBDGB1008MESB X SHARP Badge AE 1 4 JBTN 0107GJKB X Button Power Vol up down AH 1 5 JBTN 0108GJKB X Button C...

Page 26: ...RK Not replacement items FRONT Buffer Material Polyethylene Sheet Polyethylene Bag Operation Manual Infrared R C Unit Batteries REAR Use tape to fix the top side of packing case Use 12 staples to fix the bottom side of packing case Bar Code Label ...

Page 27: ...eval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher D JAPAN P SEMEX TQ1076 S Jun 2001 Printed in Japan MI KG SHARP ELECTRONICA MEXICO S A DE C V Blvd SHARP No 3510 Parque Industrial Rosarito Playas de Rosarito B C 22710 ...

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