First of all, I should mention that this is my first attempted DLP repair.
I
have looked over the Service Manual and have made some very solid
progress (I feel). I'll let you know what I have done so far and what
I'm stumped on.
From "ATC336_Manual_lite.pdf"(which I got from another guru here (thanks))
Flow Chart "No Video - A"
Applied
AC power, achieved normal boot up sequence, Began start up. Did
instrument start normally and display video? :P Obviously not, onward
to "No Video - B"
Flow Chart "No Video - B"
Did Color
Wheel Spin? No, I have removed the lamp assembly and made sure to close
the "Lamp housing safety circuit" and observed up close that the Color
Wheel is NOT spinning.
Possible Light Engine Reset Failure ->
Remove AC power CHECK ->
Disconnect HDMI
Cable to Light Engine CHECK ->
Apply AC power and wait for boot up signal to complete CHECK ->
Connect to any monitor capapble of Composite VIdeo Dislpay CHECK ->
Visible Video on Monitor? YES (I see a black screen with a few fuzzy white lines)
DM Module Ok
Go to Light Engine
Troubleshooting chart
^
PROBLEM
#1 (this is the same step I would have went to if they Color wheel DID
spin, which leads me to believe that The said above steps should have
"Fixed" the color wheel not spinning problem
Light Engine Troubleshooting Chart
Successfull Booth Sequence (5 blinds, Power LED stays on)
Color
wheel Spin NO Remove AC and check Color wheel connectors and Color
Wheel (I cannot figure out how to actually GET to the Color wheel)
Noting
Problem #1, if the said steps had supposed "Overlooked" the color wheel
not spinning... next box for Light Engine Trouble Trouble shooting?
Problem #2 Did Lamp Turn on? (Lamp Fan Start) Oddly, the FAN does start spinning but the Lamp does not start.
Continue to Light Engine TS - B
Remove Lamp CHECK ->
When boot up sequence is complete; turn on.
When the lamp strike occurs do you hear a tick? No, the ballast does not tick as it attempts to strike lamp arc.
So I guess the primary question here is Does the Color Wheel have to turn in order for the ballast to strike the lamp?
If so, does this mean the wheel needs to be replaced; if so; anyone have a diagram of how I un-house it?
If the ballast IS the problem; would a fixed one solve my problem and also make the Color Wheel turn again?
If I need any manuals with this response; my
e-mail is Irsikd@aol.com
Thanks tons in advance!!!
