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Orakelschaf

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Please jump to answer #8 - where i list all the values.


Hello,

i am looking for the value of the "TRAP" potentiometer (VR451) on a Nanao MS2930-S-E PCB (PCB Ref: 05A00732G2).

thanks alot.
 
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To clarify: I only need the value/number of the VR451 potentiometer since mine is missing and needs replacement :(

IMG_9959.JPG
 
@nem :

Do you know where i could find replacement potentiometers which would fit if i would replace all? - 2,2k, 3,3k, 4,7k,680k ones are somehow non-existent :(

thanks alot
 
I think you'll have a hard time finding exact replacements.
 
@nem :

Do you know where i could find replacement potentiometers which would fit if i would replace all? - 2,2k, 3,3k, 4,7k,680k ones are somehow non-existent :(

thanks alot
Did you ever find a solution to your problem. I'm in the same boat trying to find an equivalent replacement.
 
Sorry for the late reply. The exact same potentiometers are not produced anymore and 684 and 332 ones can't be found anywhere (i think those values are obsolete and you should choose a higher or lower value).

Below is a list of potentiometers i bought at digikey and soldered to the pcb. Hope this helps

PositionNameMeaningPrinted ValueValueDigikeyInformation
VR201R CUT OFFR Cut Off3323,3k1993-PT6KV-252A2020-NDDoes not exists anymore. Alternative: 2,5k
VR202G CUT OFFG Cut Off3323,3k1993-PT6KV-252A2020-NDDoes not exists anymore. Alternative: 2,5k
VR203B CUT OFFB Cut Off3323,3k1993-PT6KV-252A2020-NDDoes not exists anymore. Alternative: 2,5k
VR204SUB CONTSub Contrast4724,7k1993-PT6KV-472A2020-ND
VR403V.S.SUB104100k1993-1042-ND
VR205ABLAutomatic Black Level / Automatic Brightness Level10310k1993-1041-ND
VR551H.H 154724,7k1993-PT6KV-472A2020-NDDigikey: Dial from above, instead of side
VR552H.H 2422322k1993-PT6KH-223A2020-PM-ND
VR554H.H 3022322k1993-PT6KH-223A2020-PM-ND
VR452S.P.CSide Pincushion2222,2k
1993-PT6KV-222A2020-PM-ND
Digikey: Dial from above, instead of side
VR553PARAParalellogram684680k1993-1022-NDDoes not exists anymore. Alternative: 500k
VR402V.S.L104100k1993-1042-ND
VR451TRAPTrapezium1021k1993-PT6KH-102A2020-ND
VR401V.LINVertical Linarity2222,2k
1993-PT6KV-222A2020-PM-ND
Digikey: Dial from above, instead of side
VR503H.S.LHorizontal S Linarity4724,7k1993-PT6KV-472A2020-ND
VR501H. DRIVE10310k1993-1041-ND
VR453S.P.C 15Side Pincushion 15Khz22322k1993-PT6KH-223A2020-PM-ND
VR502R. S22322k1993-PT6KH-223A2020-PM-ND
VR701HV ADJ47347k1993-PT6KH-473A2020-PM-NDDon't touch if not broken! - Measure before replacing!
VR702X PROX-Ray Protection10310k1993-1041-NDDon't touch if not broken! - Measure before replacing!
VR951BB+ Voltage (Don't touch or replace unless you know what you're doing)1021k1993-PT6KH-102A2020-NDDon't touch if not broken! - Measure before replacing!

1681641495062.png

1681641510946.png

1681641543815.png

1681641577082.png
 
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Sorry for the late reply. The exakt same potentiometers are not produced anymore and 684 and 332 ones can't be found anywhere (i think those values are obsolete and you should choose a higher or lower value).

Below is a list of potentiometers i bought at digikey and soldered to the pcb. Hope this helps

NoValueDigikeyInfo
1021k1993-PT6KH-102A2020-ND
10310k1993-1041-ND
104100k1993-1042-ND
2222,2k1993-PT6KV-222A2020-PM-NDDial from above, instead of side
22322k1993-PT6KH-223A2020-PM-ND
3323,3k1993-PT6KV-252A2020-NDDoes not exists anymore. Digikey Part No is for 2,5k
4724,7k1993-PT6KV-472A2020-NDDial from above, instead of side
47347k1993-PT6KH-473A2020-PM-ND
684680k1993-1022-NDDoes not exists anymore. Digikey Part No is for 500k
You are f'cking awesome! I will put in an order soon just so i can do a little future proofing. They seem so fragile that I feel like they're going to break if I look at them wrong. I barely touched one and the cover snapped off like there was nothing hold it on!
 
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I updated my above post with more information in the table and some photos.

Will update the "meaning" column somewhen later.

Please let me know if you find errors or can provide alternative part numbers.
 
Also dont go replacing that b+ pot unless you know what youre doing.
 
Sorry for the late reply. The exact same potentiometers are not produced anymore and 684 and 332 ones can't be found anywhere (i think those values are obsolete and you should choose a higher or lower value).

Below is a list of potentiometers i bought at digikey and soldered to the pcb. Hope this helps

PositionNameMeaningPrinted ValueValueDigikeyInformation
VR201R CUT OFFR Cut Off3323,3k1993-PT6KV-252A2020-NDDoes not exists anymore. Alternative: 2,5k
VR202G CUT OFFG Cut Off3323,3k1993-PT6KV-252A2020-NDDoes not exists anymore. Alternative: 2,5k
VR203B CUT OFFB Cut Off3323,3k1993-PT6KV-252A2020-NDDoes not exists anymore. Alternative: 2,5k
VR204SUB CONTSub Contrast4724,7k1993-PT6KV-472A2020-ND
VR403V.S.SUB104100k1993-1042-ND
VR205ABLAutomatic Black Level / Automatic Brightness Level10310k1993-1041-ND
VR551H.H 154724,7k1993-PT6KV-472A2020-NDDigikey: Dial from above, instead of side
VR552H.H 2422322k1993-PT6KH-223A2020-PM-ND
VR554H.H 3022322k1993-PT6KH-223A2020-PM-ND
VR452S.P.CSide Pincushion2222,2k1993-PT6KH-223A2020-PM-NDDigikey: Dial from above, instead of side
VR553PARAParalellogram684680k1993-1022-NDDoes not exists anymore. Alternative: 500k
VR402V.S.L104100k1993-1042-ND
VR451TRAPTrapezium1021k1993-PT6KH-102A2020-ND
VR401V.LINVertical Linarity2222,2k1993-PT6KH-223A2020-PM-NDDigikey: Dial from above, instead of side
VR503H.S.LHorizontal S Linarity4724,7k1993-PT6KV-472A2020-ND
VR501H. DRIVE10310k1993-1041-ND
VR453S.P.C 15Side Pincushion 15Khz22322k1993-PT6KH-223A2020-PM-ND
VR502R. S22322k1993-PT6KH-223A2020-PM-ND
VR701HV ADJ47347k1993-PT6KH-473A2020-PM-NDDon't touch if not broken! - Measure before replacing!
VR702X PROX-Ray Protection10310k1993-1041-NDDon't touch if not broken! - Measure before replacing!
VR951BB+ Voltage (Don't touch or replace unless you know what you're doing)1021k1993-PT6KH-102A2020-NDDon't touch if not broken! - Measure before replacing!

1681641495062.png

1681641510946.png

1681641543815.png

1681641577082.png
Is it intentional that all of these have same digikey part number?
VR552
VR554
VR452
VR401
VR453
VR502
 
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Yes, they're all 22k.

EDIT: nevermind, some are 2.2k. Good catch.
 
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Sorry for the slow reply. Yes there is a copy&past error in the table. Thanks for pointing it out! - Will update the table later (super super busy at the moment)
 
Sorry (again) for the late reply. Correct digikey part number for 2,2k is 1993-PT6KV-222A2020-PM-ND (updated the above table)
 
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