File information: | |
File name: | TV05099R.pdf [preview kv14t1r] |
Size: | 115 kB |
Extension: | |
Mfg: | SONY |
Model: | kv14t1r 🔎 |
Original: | |
Descr: | service bulletin |
Group: | Electronics > Consumer electronics > TV |
Uploaded: | 23-02-2005 |
User: | prophet |
Multipart: | No multipart |
Information about the files in archive: | ||
Decompress result: | OK | |
Extracted files: | 1 | |
File name TV05099R.pdf Technical Bulletin Date Ref. No. Model PC 30.12.99 Subject TV05099R BE-4, BE-4A Chassis IRIS NVM Data Corruption [REVISION] 2721 SYMPTOM · · · · · · Sombre picture. Small H size (H sync frequency is too high). Loss of geometry adjustment data. H-out transistor Q802 blown. No luminance signal, only chrominance. Faulty on-screen menu operation. CAUSE NVM crash due to faulty microcomputer operation during start-up. SOLUTION Perform the following changes on the A Board. · Dress the wires between A3-A6 and A7-B7 as shown below. BE-4 Sony Service Centre (Europe) N.V. Technical & Customer Services Europe Technologielaan 7 B - 1840 Londerzeel BE-4A 1/2 2/2 · TV05099R Increase the +5V start-up delay time by replacing C625 (0.22µF) with " µF Ceramic Chip" (1-162-638-11). 1 Also add protection diode D01 "1SS133T-77" (8-719-991-33) between pins 2 and 3 of IC603. · Initialize the NVM and perform all necessary adjustments. Flag 1 Symptom code 1728 1728 Part number 8-719-991-33 1-162-638-11 Ref. No. D01 C625 Section code PSU PSU PCB A A Defect code Z Y Repair code K A Qty. 1 1 |
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