Hitachi 27MMV30B Скачать руководство пользователя страница 1 | Manualshive

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Содержание 27MMV30B

Страница 1: ...s list only gives parts which are different from the Service Manual PA No 0092 PRODUCT SAFETY NOTE Components marked with aA have special characteristics important to safety Before replacing any of these components read carefully the PRODUCT SAFETY NOTICE of this Service Manual Do not degrade the safety of the receiver through improper servicing For 27MMV30B Same as 27MM20BA except below parts SYM...

Страница 2: ...ester DC500V connect one lead to the jumpered AC plug and touch the other lead to each exposed metal part antennas screwheads metal overlays control shafts etc particularly any exposed metal part having a return path to the chassis should have a minimum resistor reading of 0 24MQ and a maximum resistor reading of 12MR Any resistance value below or above this range indicates an abnormality which re...

Страница 3: ... high voltage component Do not operate the chassis longer than is necessary to locate the cause of excessive voltage PRODUCT SAFETY NOTICE This Service Manual is intended for qualified service technicians it is not meant for the casual do it yourselfer Qualified technicians have the necessary test equipment and tools and have been trained to properly and safely repair complex products such as thos...

Страница 4: ...Chrominance C 0 286Vp p 75 Ohm l Audio input level average 400mVrms 47K Ohm outputs l Audio Output variable 400mVrms 1K Ohm Dimensions l Height in l Width in l Depth in l Weight Ibs 23 l32 27 9 32 20 3 64 88 VGA SPECIFICATONS 1 TYPE 1 PS2 1 1 Ps2 2 1 PS2 3 i MODE 640X350 640X400 640X480 HORIZONTAL FREQUENCY 31 469Khz 31 469Khz 31 469Khz 1F E y 1 70 06Hz 1 70 06Hz 1 59 94Hz 1 SYNC TYPE HN separate ...

Страница 5: ...to max Adjust Screen VR so that Beam Current is 1B 1 15 O 1mA The voltage of ABL terminal C725 both ends should be 12V or less CPT High voltage voltmeter DC voltage divider ital voltmeter GND WIRE Use the voltmeter Of input impedencelOM ohm or more with indication to the 1st decimal place Adiustment Procedure 1 Check that the normal High Voltage is 27 0 1 5KV and B Voltage is 130 1 5V 2 Connect ji...

Страница 6: ...er or an experienced radio or television technician for help Modifications The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by Hitachi Home Electronics America Inc may void the user s authority to operate the equipment Cables Connections to this device must be made with shielded cables with metallic RFI EMI connector hoo...

Страница 7: ...etal Glaze Semiconductors TR Transistor DI Diode ZD Zener Diode VA Varistor TH Thermistor IC Integrated Circuit SYMBOL NO LJT0660 CYOI CYO2 DYOl DY02 DY03 IYOl KY51 KY52 LYOI PYOl PYO2 RYOl RY02 RY03 RY04 RY05 0880009R CAP POLYESTER 0 01 UF K 50V 0800039R CAP ELECTRO 47UF M 1OV 2339856M ZENER HZS7B3 TA 2339856M ZENER HZS7B3 TA 2339856M ZENER HZS783 TA CPOlO42U DIGITAL MONOLITHIC IC 24LC21AJP 29744...

Страница 8: ...aded have special characteristics important to safety Before replacing any of these components read carrefully the PRODUCT SAFETY NOTICE of this Service Manual Don t degrade the safety of the receiver through improper servicing l All DC voltage to be measured with a tester 100kWV Voltage taken on a complex color bar signal including a standard color bar signal l Since this is a basic circuit diagr...

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Страница 17: ...NOTES ...

Страница 18: ...HITACHI ...

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