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Grundig 40 VLE 5730 BN Power Board ZUV 194R-06 Schematic Needed

draganp 1563 9
Best answers

Can I find a schematic for the ZUV 194R-06 power board used in a Grundig 40 VLE 5730 BN TV?

No exact schematic was posted, but one reply pointed to a similar PSU, `z4h194-07_psu`, as a reference for comparison [#21355875] For troubleshooting, the board was reported to have had a blown fuse, both MOSFETs shorted, a fusible resistor blown, and a damaged 101K/1kV capacitor; after replacing those parts the board was no longer shorted, but there was still no 5V standby output [#21356559] Another reply asked which IC is used on the standby supply, suggesting a TNY-type controller or a transistor-based solution [#21356762] It was also noted that on this PSU there may be no 5V standby on the connector, only +12V, GND, and EN, with a possible 5V standby coming from a different power-supply model [#21359205] The original poster later clarified that there was no DC voltage on the secondary side at all [#21360483]
Summary generated by AI based on the discussion content.
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  • #1 21355341
    draganp
    Level 3  
    Posts: 5
    Mark: Grundig
    Model: 40 VLE 5730 BN

    Hello, I'm looking for a schematic of the power board ZUV 194R-06. It is from the Grundig VLE 5730 LED TV.

    Thanks
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  • #2 21355835
    Lolo81700
    Level 13  
    Posts: 169
    Help: 10
    Rate: 46
    Hello my dear.
    What is the problem with the power board?
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  • Blown MOSFETs and fuse resistor, no 5V standby

    #4 21356559
    draganp
    Level 3  
    Posts: 5
    Lolo81700 wrote:
    Hello my dear.
    What is the problem with the power board?


    Hello, the fuse was blown. Both MOSFETs were shorted, fusible resistor blown too, capacitor (101K 1KV) damaged. Replaced all and now the board is not shorted. Fuse is OK, but there is no 5V standby voltage.
    Marked parts that I've replaced.

    If you have any idea please let me know. I can post better photos of both sides..maybe it would be helpful....
    Attachments:
    • Grundig 40 VLE 5730 BN Power Board ZUV 194R-06 Schematic Needed ploca2.jpg (146.98 KB) You must be logged in to download this attachment.
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  • #5 21356637
    Lolo81700
    Level 13  
    Posts: 169
    Help: 10
    Rate: 46
    What is the chassis model? See on the label
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  • #6 21356696
    draganp
    Level 3  
    Posts: 5
    >>21356637
    I am not with TV now, but as I remember the chassis is GM.
  • #7 21356762
    lisek
    Service technician RTV  
    Posts: 39912
    Help: 6339
    Rate: 6860
    Quote:
    but there is no 5V standby
    .
    What IC (TNY>>>) is used or solution with transistor ?
  • #8 21358798
    draganp
    Level 3  
    Posts: 5
    I have only a basic knowledge about electronics and hope this attached photo with marked parts is helpful.
    If you have an idea what I need to test/replace please let me know.
    Attachments:
    • Grundig 40 VLE 5730 BN Power Board ZUV 194R-06 Schematic Needed board1.jpg (1.1 MB) You must be logged in to download this attachment.
  • #9 21359205
    lisek
    Service technician RTV  
    Posts: 39912
    Help: 6339
    Rate: 6860
    Quote:
    no 5V standby / no 5V stby
    .
    On pcb PSU not 5V stby , only +12V and GND and EN (enable)

    Grundig 40 VLE 5730 BN Power Board ZUV 194R-06 Schematic Needed

    Maybe you have such a solution stby +5V
    - it's from a different power supply model
    5V StandBy Circuit diagram on 17IPS71 board
  • #10 21360483
    draganp
    Level 3  
    Posts: 5
    There is no DC voltage on the secondary side. I wrote that there is no standby voltage because standby voltage, I think, should be there as soon as there is AC voltage 230v present.
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Topic summary

✨ The discussion revolves around a request for a schematic of the power board ZUV 194R-06 from the Grundig 40 VLE 5730 BN LED TV. The user reports that after replacing several damaged components, including MOSFETs, a fusible resistor, and a capacitor, the board is no longer shorted, but there is no 5V standby voltage present. Other participants inquire about the chassis model and suggest checking specific integrated circuits (ICs) and voltages on the power supply unit (PSU). The user confirms that there is no DC voltage on the secondary side and emphasizes the expectation of standby voltage when AC power is applied.
Summary generated by AI based on the discussion content.
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