I have a Toshiba Mod. 50HZ72...The Blue lamp appears to be tweaked too far to the right. I t wont go back to the left to line up with cross. Can it be adjusted below? Manually?

FIRST: the place I buy parts from is on Ebay. Select advanced search, then on the left search by seller......look for sewsales55--this is a company in Maryland called Suburban Electronics-fast shipper and good seller--Jim is the head guy there.

The repair consists of two parts. First you are going to have to gain access to the chips---most of these sets you are going to have to get the entire chassis unbolted so the bottom of all the boards faces the back of the set--you will have to unplug some plugs and remove some wires from ties that hold them--usually you are going to have to get about 4 plugs free to have enough room to work.

Use liquid solder flux on the 18 pins on each chip before you unsolder them--most of the time in this set they will be on large metal heat sinks near the middle of the boards at the back of the set. The real battle is getting at them. with the flux applied you unsolder all 18 pins on each chip AND YOU WILL FIND FOUR LARGE PINS SOLDERED IN FOR THE HEAT SINKS.

The idea is to get the chips unsoldered and the heat sinks free--you will then be able to pull the heat sinks with the chips attached out of the board. This is the hard part. You install the two new chips with heat sink compound on them--if you need explanation let me know. the hard part is when you install the new ones--best way is to do the one towards the front of the set first--18 pins and four pins for the heat sink--very important all the pins on the chips are perfectly straight. Once you get one chip and heat sink in you lower the board and solder the pins that hold the heat sink in (four pins) you repeat this with the second chip and then carefully solder all the pins on both chips--make sure you solder all of them and do not short any--

When you have the two chips removed check all the dark gray resistors around them--they are all 1.8 ohm and should read like a fuse--very common for one to be open and look pefect.

if you find any bad ones replace them--if you do not you will still have a convergence problem--a bad chip will open or destroy one of them instantly.

If you get this far--turn the set on and see what you have--go into the customer menu and adjust the convergence there. if it looks ok you are done--if you want a finer adjustment let me know and i will give you instructions on how to get into the TEch menu for adjustment all over the screen.
do not hesitate if you have questions to let me know.

SD TECH


FIRST: the place I buy parts from is on Ebay. Select advanced search, then on the left search by seller......look for sewsales55--this is a company in Maryland called Suburban Electronics-fast shipper and good seller--Jim is the head guy there.

The repair consists of two parts. First you are going to have to gain access to the chips---most of these sets you are going to have to get the entire chassis unbolted so the bottom of all the boards faces the back of the set--you will have to unplug some plugs and remove some wires from ties that hold them--usually you are going to have to get about 4 plugs free to have enough room to work.

Use liquid solder flux on the 18 pins on each chip before you unsolder them--most of the time in this set they will be on large metal heat sinks near the middle of the boards at the back of the set. The real battle is getting at them. with the flux applied you unsolder all 18 pins on each chip AND YOU WILL FIND FOUR LARGE PINS SOLDERED IN FOR THE HEAT SINKS.

The idea is to get the chips unsoldered and the heat sinks free--you will then be able to pull the heat sinks with the chips attached out of the board. This is the hard part. You install the two new chips with heat sink compound on them--if you need explanation let me know. the hard part is when you install the new ones--best way is to do the one towards the front of the set first--18 pins and four pins for the heat sink--very important all the pins on the chips are perfectly straight. Once you get one chip and heat sink in you lower the board and solder the pins that hold the heat sink in (four pins) you repeat this with the second chip and then carefully solder all the pins on both chips--make sure you solder all of them and do not short any--

When you have the two chips removed check all the dark gray resistors around them--they are all 1.8 ohm and should read like a fuse--very common for one to be open and look pefect.

if you find any bad ones replace them--if you do not you will still have a convergence problem--a bad chip will open or destroy one of them instantly.

If you get this far--turn the set on and see what you have--go into the customer menu and adjust the convergence there. if it looks ok you are done--if you want a finer adjustment let me know and i will give you instructions on how to get into the TEch menu for adjustment all over the screen.
do not hesitate if you have questions to let me know.

SD TECH