Epson EB-E01, Service Manual, Page: 144 / 190

EB-E01 series Disassembly and Assembly INTERNAL USE ONLY
SEIKO EPSON 144 Revision A
3.5.1.2 Ground continuity check
 Testing apparatus
Multimeter (with sensitivity down to 0.1 Ω )
 Measurement range: Select " Ω "
 Tester lead wires:
• Black lead wire: Connect it to the "COM" terminal.
• Red lead wire: Connect it to the "V/
Ω /Hz" terminal.
 Standard/Judgment level
Should be no resistance (0.5 Ω or less)
 Testing procedure
1. Turn the tester on.
2. Check that the resistance between "C" of the Computer terminal and
"G" of the AC inlet of the projector (1) is 0.5 Ω or less.
 Measure EH-TW740 at the position in the figure below.
3.5.1.3 Illumination check
 Test conditions
Input a PC or video signal and check the illumination for about 5 minutes.
1. Judgment
Projector should operate normally with no smoke or fire.
1