Recent content by Instafixx

PPVDD_PCPU_AWAKE is 0.035 PPVDD_GPU_AWAKE is 0.049 PPVDD_SOC_S1 is 0.039 PP1V8_S2 is 0.350 PP1V06_S2SW_DRAM is 0.075 PP0V764_S1_SRAM is 0.253 PP2V5_AWAKE_NAND is 0.389 PPVDD_CPU_SRAM_AWAKE is 0.255 PPVDD_DISP_S1 is .206 PPVDD_DCS_S1 is 0.296 PP0V6_S1_VDDQL is 0.171 PPVDD_ECPU_AWAKE is 0.125...

Without FUSE Stable 12.3V at PPVBAT. When fuse is connected AMP Meter Reboots and PPBUS reboots as wel. No shorts on the board.

PPCHGR_VDDA was shorted. Injected Voltage and the old U5200 flashed on the thermal camera and short was gone. Now replaced with a new U5200. Device turns on now.

I put back the old U5200.Its back to 0.5V

Device Stuck. at 5V. No shorts . Nothing on the thermal camera. PPBUSis 0.5V. Removed the Fuse. Still 0.5V at C5250 PPDCIN is in sync with the AMP Meter. Resistors around U5200 are okay. Replaced U5200. Now PPVBAT_AON_CHGR_REG pulses between 1.2V to 4V

i think customer must have tried to do some software or something in that original condition that led to camera issue. i did a DFU Revive and now camera is working.

Since i have tried a different TCON board and also a different lcd assembly. JP600 should be the suspect here. Diode reading there is normal. What else to check?

Couldnt find it anywhere on the Boardview. Its there only in the schematics

All Coils getting 1.2V What is UP102?

Yes.

Macbook A2337 Camera Issue Device was stuck in Round Logo with a slash inside it (Recovery or No Software). Water Damage as the small audio board. Cleaned it. Turns on now. Had to replace the trackpad flex cable as well. Everything fine now except "No Camera Connected". PP5V_MAIN_ALSCAM_F is...

Diode Mode to ground at 3v8_aon is 0.177. Which seems okay as compared to a good board.

Macbook A2442 Came in as Not turning on. PP3v8 shorted. Injected voltage. U7700 heating up. Short removed. PPBUS is 12.3V 3V8_on is Present AMP Meter stuck at 5V and drawing close to 0 Amps Pp1v_s2 is 0.300-0.400V 3v3_s2 is 1V PP5v_s2 main is missing. U5700 is behaving weird. If i probe around...

I had replaced RD560 but didnt work. Replaced again with a jumper from PPBUS to PPVIN. Machine turns on now.

Please help.