SMH9207ST Samsung microwave dim display

[mmoore5553]

Model Number

SMH9207ST

Brand

Samsung

Age

6-10 years

The microwave works great but we can not see the display. I did look very hard and flash a light on it and you can see it. It is just very dim. I am not sure what supplies power to it or if that is the issue. I figured since it is still working to check caps on a board but unsure. What do you good people think ? Where should I go looking. I have a multimeter. If I have to buy an ESR meter then I will. A new toy is always good. Thank you in advance.

 

[Wx4usa]

Do any caps show crowning? If you go the esr route, get the B&K 881.

 

[mmoore5553]

which board should i look for the caps on. I do not know which board to start with . I have not taken the unit apart yet. I know I replace the touchpad years ago. I am not sure which boards do what or how many there are.

 

[Wx4usa]

Unfortunately their service info doesn’t describe board level parts. I believe you have a display driver board in the door. Can you send the FCC ID number? It’s on the model label in the door.

 

[mmoore5553]

it has some of the number missing but appears to look like

a3lotpmlst or a3lotbmlst or a3lotrmist

the 6 number is hard to make out. I have attached the label.

 

[Wx4usa]

No help I’m afraid. I wish I could help

 

[mmoore5553]

thank you for trying. We will see if Jake see this thread.

 

[Jake]

@Wx4usa is the go to guy for Microwaves, I know nothing about fixing them, as I was never trained for them when I worked at Montgomery Ward and Sears.