dead set no power light or anything but clicks as plugged in,my research has led me to think scaler board problems getting 16,16,24 and 4 volts at power board leading to scaler ,having problems tracing scaler board,already recapped power board,bought set dead as project,any ideas?
-
-
Re: magnavox 37mf321/d37
pics of boardsAttached Files -
-
Re: magnavox 37mf321/d37
The service manual is at Elektrotanya. It should have schematics of the Small Signal Board.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
-
Re: magnavox 37mf321/d37
update on my problem,bought another set for parts made 1 complete set,conclusion on first set was bad power board and bad main board,these sets only have green light when on, no red standby light and power light feeds off main boardComment
-
Hi all,
As the title suggests, how can I be sure that my EC chip is really dead?
I've recently gotten into this hobby of laptop repairs, and have successfully brought back to life a couple with some easy fixes, mostly shorted caps.
Now I'm working on HP Probook 455 G8, that had some "devil" run around on 3V line, burning a bunch of stuff. Luckily I have a dead 455G7 (for spare parts) so I managed to fix it (swapped burned parts) to a point that it will charge (both on barrel jack and usb-c), but it doesn't want to turn on. There is a 3V3 on a keyboard... -
shorted pin-id with vcc
initial-ite------
IT8226e-128
1839-BXS
S167RA
L002
---------------
i test with this type (3 chips,same results)
IT8226E-128
1649-BXS
-laptop show for a short time lenovo logo without light
---------------
i test the ite from a lenovo y540 - laptop start, i can work on windows - all good, only problem battery cant be charged, and when i connect the laptop turn off in few seconds
IT8226E-192
1847-BXA
... -
Hello,
on this laptop hp g72 b52sf i have screen problems as you can see with the photo joined in attachments.
the used graphic card is "intel hd graphics" and the id of the integrated screen is : "monitor/SEC3354".
i verified the driver of the péripherals and they are ok. i verified the definition and settings of the graphic card and of the screen : definition 1600x900 and refreshment frequency :60hz. (they are the sames for the graphic card and the screen).
i don't understand the reasons of the white stripe at the bottom of the screen below the task... -
Hi is any one can help me on getting the Schematics for Magnavox MDR515H/F7 And Magnavox MDR537H/F7 PDF file thank you I really appreciate it. Just need to change some component on
the main board and the power supply board. I looked all over for the internet and I cannot find the Schematics sheet for both of them. I don't know where else to look I hope someone can help me...03-07-2025, 01:03 PM -
hello guys,
i need help to repair a edm-033 ps2
history : as always hdmi port and usb ports destroyed after unplugged
after change them, ps5 dead too : 1 beep, no blue light. after inspection 1.8v power was shorted, and because of dead panasonic chip. after remove it : no short anymore
so i changed it
now i have got 5v stby,, 3.3v stby, 3.3v power, 1.8v power and no short on them
but the ps5 is dead again : 1 beep, near 10 seconds with power lines and then off, no blue light ...
i don't see any projection of liquid metal on pcb.
...
Comment