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Philco PH2190, Руководство по обслуживанию, Страница: 12 / 26

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PH2190

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BLOCK DIAGRAM

Содержание PH2190

Страница 1: ...EMBLIES 17 REPLACEMENT PARTS LIST 20 PACKING OF THE SET 23 Page CONTENTS SERVICE MANUAL POWER INPUT AC 120 V 60 Hz POWER RATING 69W PICTURE SIZE 1 194cm2 185 1Square 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 Frequency 42 17 MHz Nominal...

Страница 2: ...f this 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 possibility of an X radiation problem ...

Страница 3: ...etworks mechanical insulators and etc 3 To be sure that no shock hazard exists check for leakage current in the following manner Plug the AC cord directly into a 120 volt AC outlet Do not use an isolation transformer for this test Using two clip leads connect a 1 5k ohm 10 watt resistor paralleled by a 0 15µF capacitor in series with all exposed metal cabinet parts and a known earth ground such as...

Страница 4: ...hannel Moves the mark of the MENU screen MENU Press Accesses MAIN MENU Press again Exits MAIN MENU DISPLAY Press Displaysreceivingchannelfor four seconds Press again Removes display Temporarily displays receiving channel when in Closed Caption mode Basic Remote Control Functions POWER Press On Press again Off REMOTE KEYP AD Accesses any channel from keypad FLASHBACK Returns to previous channel VOL...

Страница 5: ...ation 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 pic...

Страница 6: ...l 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 1 There are 3 adjustment categories 2DEF 3SIGNAL 4FIX 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 adj...

Страница 7: ...26 H BLK L 00 07 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 00 7F 40 D03 V POSITION 00 3F 20 Must be 20 D04 CC POSITION 00 FF 1A D05 V LINEARITY 00 1F 10 Must be 18 D06 V S CORRECTION 00 1F 10 Must be 0C SERVICE POSITION ADJUST ITEM DATA RANGE INITIAL ...

Страница 8: ... write the above initial values into IC2102 IC2101 Table D The adjustment is needed to compensate for characteristics of parts including IC201 Holding down both the Vol up Ch down buttons on the TV set in the service mode for more than 2 seconds will automatically write the above initial values into IC2102 IC2101 X X ADJUSTMENT NECESSARY UNNECESSARY PART REPLACED NOTES R2101 R2102 R2103 R2104 If u...

Страница 9: ... Enter the service mode signal category and select the service adjustment S01 3 Set the data value to point where no noise or beat appears 4 Select another channel to confirm that no noise or beat appears Note You have to exit the service mode first to select another channel Video Level TV Det Video Level Adjustment 1 Receive a good local channel 2 Enter the service mode signal category and select...

Страница 10: ...od 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 20 032 10 steps Caption Position Adjustment Horizontal...

Страница 11: ...11 PH2190 6 5 4 3 2 1 A B C D E F G H CHASSIS LAYOUT NORMAL PR701 C708 ...

Страница 12: ...12 PH2190 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM ...

Страница 13: ...oltages 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 cathodes of the picture tube depend on the tint color level and picture control 2 indicates waveform check points See chart waveforms are measured from point indicated to chass...

Страница 14: ...PH2190 14 ...

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Страница 17: ...17 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Wiring Side PRINTED WIRING BOARD ASSEMBLIES PH2190 ...

Страница 18: ...18 PH2190 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Chip Parts Side I I I I I P I I I P I P P I I I I I P P P I I I I I P P I I I I I I I ...

Страница 19: ...19 PH2190 6 5 4 3 2 1 A B C D E F G H PWB B CRT Unit Chip Parts Side PWB B CRT Unit Wiring Side ...

Страница 20: ...2SC945AQ AB Q751 VS2SC945AQ 1 X 2SC945AQ AB Q752 VS2SC945AQ 1 X 2SC945AQ AB Q2201 VS2SD601AR 1Y X 2SD601AR AB Q2211 VS2SD601AR 1Y X 2SD601AR AB D52 RH EX0676GEZZY X Zener Diode 32V AB D101 RH EX0617GEZZY X Zener Diode 5 6V AB D352 VHD1SS119 1Y X Diode AA D353 RH EX0644GEZZY X Zener Diode 13V AB D453 RH EX0616GEZZY X Zener Diode 5 6V AB D455 VHD1SS119 1Y X Diode AA D456 RH DX0475CEZZY X Diode AB D4...

Страница 21: ...lar AB C606 VCKYPA2HB561K X 560p 500V Ceramic AB C607 VCKYPA1HB472K X 4700p 50V Ceramic AB C610 VCFPVC3ZA772H X 7700p 1 5kV M Poly AB C612 VCFPVC2DB474J X 0 47 200V M Poly AB C633 VCEA0A1AW337M X 330 10V EL AB C634 VCKYCY1HF103ZY X 0 01 50V Ceramic AA C635 VCEA0A1HW105M X 1 0 50V EL AB C636 VCQYTA1HM153J X 0 015 50V Mylar AB C637 VCEA0A1CW476M X 47 16V EL AB C652 VCEA0A1HW475M X 4 7 50V EL AB C653...

Страница 22: ...JY X 22k 1 8W Carbon AA R528 VRD RA2BE272JY X 2 7k 1 8W Carbon AA R529 VRD RA2BE472JY X 4 7k 1 8W Carbon AA U R604 VRS RG3DB682J X 6 8k 2W M Ox AB R605 VRD RA2BE121JY X 120 1 8W Carbon AA R606 VRD RA2BE102JY X 1 0k 1 8W Carbon AA R607 VRS RG3DB682J X 6 8k 2W M Ox AB U R608 VRS RG3DB391J X 390 2W M Ox AB U R609 VRS RG3AB562J X 5 6k 1W M Ox AB R610 VRD RM2HD220JY X 22 1 2W Carbon AA U R611 VRS KA3HG...

Страница 23: ... AA R2045 VRS CY1JF101JY X 100 1 16W M Ox AA R2047 VRS CY1JF221JY X 220 1 16W M Ox AA R2048 VRS CY1JF562JY X 5 6k 1 16W M Ox AA R2049 VRS CY1JF333JY X 33k 1 16W M Ox AA R2060 VRS CY1JF221JY X 220 1 16W M Ox AA R2061 VRS CY1JF562JY X 5 6k 1 16W M Ox AA R2062 VRS CY1JF183JY X 18k 1 16W M Ox AA R2063 VRS CY1JF222JY X 2 2k 1 16W M Ox AA R2065 VRS CY1JF000JY X 00 1 16W M Ox AA R2066 VRS CY1JF103JY X 10...

Страница 24: ...ZZ X OPERATION MANUAL AC TGAN A244WJZZ X WARRANTY CARD PH MODELS AB TCAUS3000GJZZ X CAUTION LABEL AA SPAKCB121WJZZ X PACKING CASE PH2190 AP SPAKP0102GJZZ X LAMIFOAM 457MM X 1800MM AC SPAKXA398WJZZ X PACKING FOAM PH2190 AG SSAKA0101GJZZ X PLASTIC BAG AB 1 CCABAA501WEH0 X CAB A ASSY PH2190 AY 1 1 GCABAA501WJSA FRONT CABINET PH2190 1 2 GCOVAA701WJSA X R C COVER PH2190 1 3 HBDGEA008WJSA X BADGE PH2190...

Страница 25: ...9R M100 PACKING OF THE SET REAR Use tape to fix the top side of packing case Packing Case FRONT Buffer Material Wrapping Paper Polyethylene Bag Operation Manual Infrared R C Unit Batteries MARK Not replacement items Use 10 staples to fix the bottom side of packing case ...

Страница 26: ...retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher GRUPO COMERCIAL GOMO S A DE C V Col Altavista C P 01060 Blvd Adolfo López Mateos No 2370 México D F Importador Tel 55 550 49 49 PHILCO ...

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