[TechAssist] Sharp 32C230 Dark screen (like low G2) after CRT PCB replacement
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
- To: "Techassist" <techassist@xxxxxxxxxxxxx>
- Date: Tue, 24 Aug 2004 08:12:17 -0400
Installed new CRT PCB (PWB-B), Sharp part # DUNTKB568WEV1G for an
intermittent CRT arcing problem only to find with the new CRT PCB, the
raster was very dark and appeared to be low G2 from the symptom. When G2 was
increased from that point, retrace would appear very soon. Took old and new
boards side by side to do close physical inspection to see if there were any
differences in components which all were the same, that is all that were
there! It turned out that the new PCB did not have resistor (R892)
installed. This is a 330 ohm, 1/8 watt resistor, Sharp part #
VRD-RA2BE331G*. I transferred the resistor from olf PCB to new and then
picture was normal with the new PCB.
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
- » [TechAssist] Sharp 32C230 Dark screen (like low G2) after CRT PCB replacement
