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NEC VT770 Series, Service Manual Supplement, Page: 1 / 7

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NEC VT770 Series Service Manual Supplement Download Page 1

MODEL VT60 Series

NP600 Series

VT70 Series

NP610 Series

VT80 Series

NP-M350X Series

VT90 Series

NP-M420X Series

NP3150 Series

NP-M350XS Series

NP3250 Series

NP-P420X Series

VT700 Series
VT770 Series
NP905 Series

LCD Projector

SERVICE MANUAL SUPPLEMENT

Better Service

Better Reputation

Better Profit

Optical alignment jig (optical axis alignment/polarizer alignment)

SAFETY CAUTION:

Before servicing this chassis, it is important that the service 
technician read and follow the “Safety Precautions” and 
“Product Safety Notice” in this Service Manual.

WARNING:

SHOCK HAZARD - Use an isolation transformer when servicing.

NEC DISPLAY SOLUTIONS, LTD.

Summary of Contents for VT770 Series

Page 1: ... Projector SERVICE MANUAL SUPPLEMENT Better Service Better Reputation Better Profit Optical alignment jig optical axis alignment polarizer alignment SAFETY CAUTION Before servicing this chassis it is important that the service technician read and follow the Safety Precautions and Product Safety Notice in this Service Manual WARNING SHOCK HAZARD Use an isolation transformer when servicing NEC DISPL...

Page 2: ...IN DE REDUIRE LES RISQUES D ELECTROCUTION NE PAS DEPOSER LE COUVERCLE IL N Y A AUCUNE PIECE UTILISABLE A L INTERIEUR DE CET APPAREIL NE CONFIER LES TRAVAUX D ENTRETIEN QU A UN PERSONNEL QUALIFIE Ce symbole a pour but de prévenir I utilisateur de la présence d une tension dangereuse non isolée se trouvant à l intérieur de l appareil Elle est d une intensité suffisante pour constituer un risque d él...

Page 3: ...ge parts and if removed for servicing they must be retuned precisely to their original positions 5 LAMP Be very careful of the lamp because it generates high heat while it is used at high voltage When replacing the bulb make sure it is cool enough 6 LENS Do not look into the lens during projection This important to avoid damage to the eyes 7 SERVICING At the time of repair or inspection services u...

Page 4: ... Extension connector Connector PWB for extension No Part No Description Number of pins Photo Wire length 1 9N9CN001 CONNECTOR 2P 900 2P connector 900mm 2 9N9CN002 CONNECTOR 3P 900 3P connector 900mm 3 9N9CN003 CONNECTOR 4P 900 4P connector 900mm 4 9N9CN004 CONNECTOR 5P 900 5P connector 900mm 5 9N9CN005 CONNECTOR 2P 300 2P connector 300mm 6 9N9CN006 CONNECTOR 3P 400 3P connector 400mm 7 9N9CN007 CO...

Page 5: ... 9N9FFC03 CABLE FFC 30P 600 30P connector 600mm 17 9N9FFC04 CABLE FFC 32P 600 32P connector 600mm 18 7N500019 CABLE FFC 36P 600 36P connector 600mm 19 9N9FFC06 CABLE FFC 40P 600 40P connector 600mm 13 9N9FFC07 CABLE FFC 57P 600 57P connector 600mm 20 9N9M0001 RELAY PWB 2P 2P PWB 21 9N9M0002 RELAY PWB 3P 3P PWB 22 9N9M0003 RELAY PWB 4P 4P PWB 23 9N9M0004 RELAY PWB 5P 5P PWB 24 9N9M0005 RELAY PWB 15...

Page 6: ...P 13P PWB 26 9N9M0007 RELAY PWB 24P 24P PWB 27 9N9M0008 RELAY PWB 30P 30P PWB 28 9N9M0009 RELAY PWB 32P 32P PWB 29 9N9M0010 RELAY PWB 36P 36P PWB 30 9N9M0011 RELAY PWB 40P 40P PWB 31 9N9M0012 RELAY PWB 18P 18P PWB 32 9N9M0013 RELAY PWB 57P 57P PWB 33 9N9M0014 RELAY PWB 16P 16P PWB ...

Page 7: ...e optical axis alignments by means of a dummy load In the future please make optical axis alignments with the use of the extension connector and the extension connector PWB in the same manner as for the polarizer alignments The method of connection to make optical axis alignments with the use of the extension connector and the extension connector PWB is the same as for the polarizer alignment This...

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