the focus block has been an issue on these sets also clean or replace all 6 spark gaps 2 on each of the crt boards then realign gray scale be sure customer settings are in normal/standard Robert tvservice@xxxxxxxxxxxxx H & H Electronics Inc http://supertek.igniteinc.biz ----- Original Message ----- From: "peggs" <peggs@xxxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Wednesday, January 25, 2006 2:22 PM Subject: [TechAssist] Hitachi 46" PTV > could someone forward this to Alvie Rodgers for me....... > model 46F510 > HD Monitor > Oct. 2004 > > Dark and Out Of Focus Picture. > Slight increase of the G2 controls(all) has given a Bright and > Balanced(Gray Scale) Picture....... and actually Increasing the Focus > Controls(all) has brought the Picture in focus as well,problem is the Focus > Controls are now wide open(turned all the way up).Picture looks good > now,but how's it going to look in 6 months ??? > The Focus Voltage coming from the Fly is 10Kv. > Focus Voltage coming out of the Focus Block(going TO the picture tubes) is > app. 7Kv(controls wide open). Should it be 10Kv with the controls wide open > ??? > If so,I may have a bad Focus Block. > If not,my fear is I have 3 Bad Picture tubes...... how do I check them ??? > I guess it's possible I may have 3 Bad CRT Sockets...... > Could Low HV cause this ???....... Focus Voltage coming from Fly seems > plenty High enough..... HOT B+ is 115v(I believe... found it coming from PS > PCB) > > Tritronics does not have a part number for the HV Block......... any help > out there ??? > The (3) Picture Tubes are all around $172(my cost) from Tritronics..... > which sounds dirt cheap.... could that be because Hitachi is having a > problem with these tubes ??? > > I'm headed to the Hitachi site.... if it's up. > > Peggs > Peggs' Electronics > 1519 West 2nd Street > Owensboro,KY 42301 > 270-926-4968 > fax 270-686-7399 > peggs@xxxxxxxxxxxxx > > -------------------------------------------------------------------------- --- > This Email List is accessible to the general public through search engines. Remove: http://www.tech-assist.org/remove.htm > Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation > Lost Password: http://www.tech-assist.org and select "Login Problems?". > Email Archives: //www.freelists.org/archives/techassist/ > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.375 / Virus Database: 267.14.22/239 - Release Date: 1/24/06 > > ----------------------------------------------------------------------------- This Email List is accessible to the general public through search engines. Remove: http://www.tech-assist.org/remove.htm Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/