Epson EMP-TW1000 Service Manual page 8

2). Ground continuity check
• Testing apparatus: Multimeter (with sensitivity down to 0.1 Ω)
Check Item
Ground continuity check
• Multimeter settings
3). Illumination check
• Test conditions: Input a PC or video signal to the projector and check the illumina-
• Evaluation: Projector should operate normally with no smoke or fire.
SEIKO EPSON
EMP-TW1000
Multimeter
Display
DC/AC, SW
Terminals
V, Ω, Hz
COM
tion for about 5 minutes.
Tool
1. Turn on the power switch.
2. Set the range selection switch to Ω.
3. Connect the black lead wire to the COM terminal.
4. Connect the red lead wire to the V/Ω/Hz terminal.
5. Check that the resistance at (1) in the diagram below is
0.5 Ω or less.
Power supply lines
a
Range selec-
tion switch
(1)
Projector AC inlet
c
PC connector
Exposed metal part of projector
0-8
Standard
Should be no resistance
(0.5 Ω or less)
b
Revision:A