Linn Preamp Model "Kolektor" - Display shows "Err4" after Switch-ON: What means this?
On the web there are not many information concerning this preamp.
Even in the attached PDF files there are no advices.
A reset according the instructions provides not the wanted results.
Who can post advices ? - thank you.
On the web there are not many information concerning this preamp.
Even in the attached PDF files there are no advices.
A reset according the instructions provides not the wanted results.
Who can post advices ? - thank you.
Hi
I found this:
The KOLEKTOR Preamplifier provides a Reset to Factory Defaults option which allows you to reset the unit back to its factory settings. This restores the user options to their initial values, and resets the inputs to their initial source names.
To reset the KOLEKTOR
Switch off the KOLEKTOR, using the power switch on the front panel.
Press and hold down VOL+ (front panel) and switch on the power again.
Keep VOL+ held down until the display shows init.
The KOLEKTOR Preamplifier will then return to normal operation with the default settings.
Take care and keep the volume low initially just in case there is some software/hardware glitch.
Good luck.
I found this:
The KOLEKTOR Preamplifier provides a Reset to Factory Defaults option which allows you to reset the unit back to its factory settings. This restores the user options to their initial values, and resets the inputs to their initial source names.
To reset the KOLEKTOR
Switch off the KOLEKTOR, using the power switch on the front panel.
Press and hold down VOL+ (front panel) and switch on the power again.
Keep VOL+ held down until the display shows init.
The KOLEKTOR Preamplifier will then return to normal operation with the default settings.
Take care and keep the volume low initially just in case there is some software/hardware glitch.
Good luck.
yes, this is mentioned on page 26 at the above PDF in German language.
Unfortunately "iNit" don't appears, instead this appears the same message "Err4", just like after normal switch on.
I have my own schematic diagram created several years ago, but unfortunately only for the signal gainstages and the interface and not for the MCU area.
Maybe a software refresh or software update must be perform.
Unfortunately "iNit" don't appears, instead this appears the same message "Err4", just like after normal switch on.
I have my own schematic diagram created several years ago, but unfortunately only for the signal gainstages and the interface and not for the MCU area.
Maybe a software refresh or software update must be perform.
more pictures.
The burned R70 must actually be the main reason for the displayed message "Err4"
What is R70's job?
Maybe the "18CV8" (CMOS Programmable Electrically Erasable Logic Device) is damaged.
The DVD-player service manual under
http://fixmag.ru/download/1256236432_dv718si-service-manual.pdf
(page 34 to 38) provides useful troubleshooting advices in general for faultfinding in MCU control boards of any device.
The burned R70 must actually be the main reason for the displayed message "Err4"
What is R70's job?
Maybe the "18CV8" (CMOS Programmable Electrically Erasable Logic Device) is damaged.
The DVD-player service manual under
http://fixmag.ru/download/1256236432_dv718si-service-manual.pdf
(page 34 to 38) provides useful troubleshooting advices in general for faultfinding in MCU control boards of any device.
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R70 (4700 Ω) is part of the 5V voltage regulator L4971.
What voltage must have occurred to burn this resistor ?
I suspect that many ICs from MCU-PCB are damaged.
What voltage must have occurred to burn this resistor ?
I suspect that many ICs from MCU-PCB are damaged.
I also have a Kolektor with Err3/Err4 at boot.
For me, it's the L4971D: i have 11v instead of 5v... I hope the H8/3337 isn't dead 😡
For me, it's the L4971D: i have 11v instead of 5v... I hope the H8/3337 isn't dead 😡
I solder a new L4971D: i now have a correct 5v in the H8/3337. But Error 3/4 is still here.
After some investigation, I see I have 9v on both SDA/SCL: it's coming from the TDA7439.
After desoldering of the TDA7439, I have 0v on SDA/SCL and the Kolektor boots without error and then 5 sec after, Error 7.
The TDA7439 is dead...
After some investigation, I see I have 9v on both SDA/SCL: it's coming from the TDA7439.
After desoldering of the TDA7439, I have 0v on SDA/SCL and the Kolektor boots without error and then 5 sec after, Error 7.
The TDA7439 is dead...
So the TDA7439 is obsolete but i find one on eBay ( TDA7439 Integrated Circuit - CASE: DIP30 - MAKE: STMicroelectronics | eBay ).
With the new TDA, the kolektor works fine.
I think the error codes are :
- Err3: communication problem with mainboard
- Err4: communication problem with PCF8574
- Err7: communication problem with TDA7439
With the new TDA, the kolektor works fine.
I think the error codes are :
- Err3: communication problem with mainboard
- Err4: communication problem with PCF8574
- Err7: communication problem with TDA7439
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