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| Forum |
Topic |
Author |
Replies |
Posted |
| Television Troubleshooting | KV32LS35U LED blinks | Borabora | 3 | 2007-12-02 16:22 | | First 650 characters of this post | Hello, I have seen many FE2-chassis based sets, and the "number 1"-problem of these sets is a defective flyback transformer which also breaks down the line output transistor. In non-widescreen models, also some components in the ABL-circuit and the Ultimate One Chip IC001 are affected, in widescreen models only a resistor in the ABL-circuit blows. The tuner being the cause of 'error 11' is not known by me. In general a diagnosis without examining the set is not easy. There are often more possibilities for a symptom to occur, so the technician has to do some | | Television Troubleshooting | AE-6B chassis led blinks 5 times | Borabora | 3 | 2006-05-21 10:59 | | First 650 characters of this post | Hello / hallo,this set does not use the 100 Hz AE6B chassis but is based on the 50 Hz FE2 chassis.Reason for this error 5 (Ik = cathode current = AKB = Automatic Kathode Biasing) could be several.Is this a sudden problem, or did it occur after the flyback transformer had been replaced?Regards / groeten,Bora. | | Television Configuration | Sony KV-32FX20U - OSD help needed | Borabora | 6 | 2005-10-19 14:01 | | First 650 characters of this post | Hello,the combination of the random OSD and error code 5 is unknown to me.Normally, the OSD appears only when the set don\'t detect a valid TV-signal (eg. on an unused external connector or when disconnecting the antenna), or when you press the \'DISPLAY\' button (marked \'i+\') on the remote control.Does the picture stay when OSD does come up?The error 5 message indicates that no or not sufficient beam current is detected by the jungle-IC and points in the direction of the picture tube, it\'s driver stage or an omitted supply- or heater voltage.As | | Television Troubleshooting | Sony KV-28LS35U WEGA Trinitron BLINKING 11 TIMES | Borabora | 2 | 2005-10-10 04:40 | | First 650 characters of this post | Hello,this is a reply from an earlier post of me:
Hello,even as repairman I think it would be error 11, because this is the main problem in these sets.Number 1 cause is the flyback transformer (T511, Sony partnumber 1-453-308-31), causing also line output transistor Q533 (BU2515DX, p/n 8-759-049-02 and ABL-resistor R518 (6k8 chip, p/n 1-216-069-91) to blow.Other less common causes: - One of the startup resistors of the main power supply has increased in value: R610, R633 or R648. (All are 330k 1/8 Watt, p/n 1-215 | | Television Troubleshooting | KV-32LS35U Standby Indicator Flashes | Borabora | 20 | 2005-08-31 04:29 | | First 650 characters of this post | Hello,even as repairman I think it would be error 11, because this is the main problem in these sets.Number 1 cause is the flyback transformer (T511, Sony partnumber 1-453-308-31), causing also line output transistor Q533 (BU2515DX, p/n 8-759-049-0 and ABL-resistor R518 (6k8 chip, p/n 1-216-069-91) to blow.Other less common causes: - One of the startup resistors of the main power supply has increased in value: R610, R633 or R648. (All are 330k 1/8 Watt, p/n 1-215-408-00).- One diode of bridge r | | Television Troubleshooting | KV14-LT1U - Sound but No pic :-( | Borabora | 2 | 2005-03-01 14:49 | | First 650 characters of this post | Hello,when error 5 occurs in FE2 chassis, this are the possibilities:- Check the pins of connector CN003 on the A-board for making good contact.- On the A-board, diode D536 can be shortened, also causing R548 to go open. - R518 on the A-board became too high in value.Regards,Bora. | | Television Installation | Need SONY KV-29LS30E Service Manual | Borabora | 7 | 2005-02-14 07:20 | | First 650 characters of this post | Hello,you are right: I thought it was regarding an LS60 model, and that manual is some bigger.But when error 2 is detected in FE2-chassis at times there is a bright scene on the screen, it\'s most of the times very simple. Between the power transformer and the audio amplifier, nearly in the middle of the chassis, there is a resistor R618 which can cause that Over Current Protection is detected erroneously. When you replace this resistor with a 270k / 0,25W resistor, the problem could be over. When the problem is not over then: in a minority of the cas |
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