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yes R7050 looks a bit strange. the solder is dark grey

Ok Current (IPOR) --Battery-BMON Eng (test 1) - Sensor Reads Within Operating Range - Check to ensure that sensor reads within operating range. ERROR - Sensor is reading above the high limit. - TEST FAILED -

PPBUS_G3H is 12.63v PP3V42_G3H is 3.42v PP3V3_S5 is 3.3v they are all stable and doesn't change. Battery is charging. Board Looks nice

R7051, R7052, R7021 and R7022 is all good

Hi. Got this board yesterday. When I press powerbutton the fan spins for 5 sec then it dies. For some strange reason I decided to keep holding down the powerbutton longer and after 10 sec I heard noice from the dvd drive and after that a normal DONG. It booted normal and everything seems to...

Resistance to ground on ppbus is 67 ohm. I don't have F7040 soldered back yet so I'm messuring after the fuse. I belive everything is ok before the fuse.

Ok. I don't have a lab power supply. Looked at the old video with Louis where he uses a atx power supply and the led strips in the window. Started with 5 v, nothing. Tried 12 volt and still nothing burning. Checked with my fingers and with alcohol. Am I doing something wrong?

Resistance to PPBUS_G3H L7630 52 ohm (PPCPUVTT_S0_REG_R) L7330 6 M (PPDDR_S3_REG_R L7530 114 ohm (PPVCORE_S0_GFX_REG_R) L8920 67 ohm (PPVCORE_GPU_REG_R) L7220 4.6 K (PP5V_S3) L7260 0.83 K (PP3V3_S5)

I wrote wrong letters in previous post When I remove L7025 diode mode on fuse F7040 changed from 0,083 to 0,144 Resistance to groud L7630 21 ohm (PPCPUVTT_S0_REG_R) L7330 3.5 K (PPDDR_S3_REG_R L7530 79 ohm (PPVCORE_S0_GFX_REG_R) L8920 7 ohm (PPVCORE_GPU_REG_R) L7220 23 K...

Ok, I understand

I'm not really sure what coils I should check. Is it F7415 and F7425? And how to check short. I tried to remove F7025, diode mode on fuse changed from 0,083 to 0,144

I don't have a similar board to meassure on

This board has green light 0 volt on fuse F7040 Diode mode on fuse 0.083 When I Remove F7040 I get PPBUS_G3H at pin 1 of F7040 so short is after fuse What should I try first?

Does any of these two components, Q6910 and U6915, work without the other. It's always a risk when you take anything from a donor board that the component doesn't work. Do I get 9-13volt on pin 2 of Q6910 if U6915 is bad? Do I get 18 volt on pin 5 of U6915 if Q6910 is bad?

Ok, thanks. I have a couple 820-2879 boards but I don't want to steal anything from them until I tried to fix them. I will probably spend a lot of time at this place, reading threads and learn troubleshoting

Having a hard time finding Q6910. They can be found on 820-2330 and 820-2390. I Don´t have any of these boards. Need to order from ebay and wait 30 days.

it boots when battery is plugged in. I have five 820-2327 boards that acts exactly the same way, works with battery but not with charger

pin 5 u6915 0volt

C7771 was 0.3 volt before replace. Now it's 1.1 volt.

No, it had not.