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it's good have check all pins on UC840 and no short i have input 5V on each pins and in pin 4 i have high consumption with thermal camera found bad caps on CP957 (PPVOUT_KBDBKLT), i have remove and now machine start

hello i have 820-02899 with problem 5V and have spikes 0.160A 1 sec and stop on slot 1 have logo pd fix on aixun tester power and second no but same 5V 0.112A for test i have replace UF400 and UF500 same i have flash 2sec with thermal camera on UC840 PP3V8AON/PH1/PH2/PH3 have 3.8V PPBUS_AON...

for information i have test with board working and i have same value

i have order new cd3215c00z and test with sofix machine (s-uem2) right connector all is perfect, left i have value too up for pin 6/31/33/40/42 test replace again ub300 but same idea?

That's precisely what's strange; with the screen disconnected, I don't have the main session display but the second screen of the extended display. PP3V3_S2 is present and get 3.2V

for info JR200 without connect : pin 1 : 1.8V pin 2 : 1.8V pin 3 : 0V pin 9 : 1.8V pin 2 : 3.3V pin 4 : 1.8V pin 8 : 0V pin 12 : 0V

3.8V on PP3V8_AON 1.8V on EDP_PANEL_PWR_EN 0.55V on FB_BLKT_2D 3.29V on PPBCON_AWAKESW_BKLTCONN without screen connect ans same with screen connect

i have image if i connect usb c hdmi os start but it's only 2nd screen. Don't have icone test with replace backlight driver same, new screen same

hello please i have help for machine a1989 i have 19V / 0A left and write usb-c in 1st port on 2nd port have 5V 0.27A for test i want reflash soc rom but don't have file you can send link ? or other way?

of course i have put F7040/41 and have 12.2V but not start

now i have 2 : 18.4v 3 : 4.47v 9 : 0.03v 12 : 12.28V 13 : 3.36v 14 : 3.24V 15 : 0.06V 17 : 12.28V 19 : 5.5V 20 : 5.5V 27 : 0V

i have fix, pin 3 have 4.47V but not start

U7000's basic voltages: 2 : 18.54V 3 : 0v 9 : 0.03v 12 : 3.39V 13 : 3.36v 14 : 0V 15 : 0.05V 17 : 0.34V 19 : 5.5V 20 : 5.5V 27 : 0V

hello, client have change battery, machine works during 2 month and now no power i have check no water damage PPBUS_G3H have only 3.5V I have remove F7040/41 and same, 3.5V on pin 1 and 1.12V on pin 2 Replace U7000 for check and same PP3V42_G3H is present i have green light on charger

already test, remove and replace same

news?

Working normally and 1 day this problem no water damage, check with microscope nothing

any idea what to look for?

exactly and now no image same in recovery mode just for check, on LP800 normally need get 10V and have 6.2V maybe UP800 defect?

With old screen same, with new work 1 min and cut, on external perfect after finishing installation