21SZ2/3/5xx, 25SZ5xx, 29SZ5xx, 29SZ6xx(TSS only), 34SZ6xx
** xx= appropriate initial like UA,UE,TR,MJ..
This issue is applicable the model with microprocessor having last 2 digits with
Only.
Do Not apply this if microprocessor type with last 2 digits with AF, AG, ME, or
MD.
Symptom: Malfunction
No Tuning reception/Sudden power off/ Wrong vertical height/etc
Cause: Microprocessor malfunction due to external noise generated other maker remote
controller or florescent lamp noise on some particular brand under very limited
particular condition.
Action: Replace QA51 together with QA10 supplied.
Do not proceed to memory initialization as described in service manual.
