Sony TVP0553 free download

File name TVP0553.pdf

S CONFIDENTIAL CSV-1 Sony Service Company National Technical Services Service Bulletin A Division of Sony Electronics Inc. Park Ridge, New Jersey 07656 TV Products Model: KD-34XBR2, KDP-57XBR2, KDP-65XBR2 No. 553 Subject: Video-5 480p Picture Blanks, and/or Picture Date: November 13, 2001 Size Changes/Shifts Left With All Signals Through All Inputs (Including Tuners). Symptom: (2357) Symptom #1- When viewing 480p (progressive scan) signals through the video-5 input the picture may intermittently blank out and then come back again. Customers may describe the symptom as "picture blinking" or "picture flashing". Video-6 input does not exhibit these symptoms. Symptom #2- When viewing any source at all, including the tuners, the picture may suddenly change size, e.g. it changes from 4:3 normal mode to full screen mode, and then it changes back again. In some cases, the picture size may shrink and shift to the left momentarily. Some sets may exhibit only one of the above mentioned symptoms, while other sets may exhibit both. It is therefore important that both of the following countermeasures be applied in sets that do not already have them applied. Solution: For symptom # 1- Suggest that the customer use the video-6 input for the 480p source, as this is the easiest and quickest solution. If the customer is already using video-6 for another source, or if the customer does not want to use video-6 for the 480p source, then replace the B-board. B-boards received from WRPC-AS have a firmware change as a countermeasure for the symptom. NOTE: In order to minimize the time required to touch up the picture adjustments when replacing the B-board it is recommended that you use the NVM reader/writer jig to copy the adjustment data from the NVM IC004 on the original B-board and write it to the NVM IC004 on the new B-board. If an NVM jig is not available you can remove the NVM IC004 on the original B-board and install it in place of the NVM IC004 on the new B-board. The NVM IC has only 8 pins and is easy to remove and re-install. See the last page for the location of IC004 and the points to which the NVM jig's reset lead must be connected. Approx. applicable serial number ranges for symptom/solution #