SONY WEGA FLAT CRT TVs SIX OR SEVEN BLINKS OF STANDBY LIGHT REPAIR HINTS
This TV has excellent quality and no restrictions in viewing angles. Other than its size and weight it is much better than what is available with newer technologies at this time.
The most common fault to these TVs are, blinking standby light. Among them, most common are six of seven time blinks, and either goes to standby, or OFF. There is a common solution for this problem too. If IC 8002 or IC6501 on the D board is found faulty in most cases. Either only one among them might be faulty, but it is a good practice to replace both of them at the same time. IC number is [MCZ 3001DB]. How to access this part. you have to open the back cover of the TV. You must have knowledge in electronics.
Before removing the cover, just unplug the TV from AC mains wall socket, and allow a few hours to the high voltages to dissipate so as to avoid shock hazards.
Some of the connectors are easy to remove, but three high voltage wires connected to CRT is not easy to unplug connections, and they should not be unplugged at all.
There are a number of connectors, need to be flip upwards, to disconnect the D board from an other adjacent board. If pull them upward, they will unsnap and pivot up 90 degrees. Unplug all the other cables and remove eight screws. The board will come out far enough to rotate it into position. Such is the mechanical fittings arranged by Sony, to do service work to this board. You must have a stubby screw driver to remove one screw that is far forward and hidden between two connectors, and it comes just under the picture tube. Locate the ICs here on D board. IC 8002&IC6501. Desolder them out from the circuit baord. Use a desoldering pump to suck out solder from soler terminals.
Beware that each chip has two pins are not soldered to board, and keep them like it is. Take note of the orientation of the chips. There is a notch on one end facing the closest edge of the board. Never install the chip backwords. If you use sockets in case, you ever to do this repair again, since having to unsolder these chips is most of the work.
After replacing ICs with sockets, install the replacement ICs. Only one among these chips might be bad, but it is best to replace both at the same time. It might be necessary to squeeze the pins together to get the legs aligned with the holes in the socket. This style of ICs has its leges spread out by default, and so they might not automatically align unless you pre-bend them inward a little to align the the holes in the socket. Carefully examine the chips after installation, make sure that the legs made it into socket. After re-installing the D board and attaching all the cables, it would be a good practice to test it to make sure the repair worked, before reinstalling the cover.
