power meter cycling in all 4 port , all ways . 5v and keep restarting
i tryed to remove r692 and i get 3.3 on pin 1, no short on in 2.
what to check ?
i tryed to remove r692 and i get 3.3 on pin 1, no short on in 2.
what to check ?
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Re: a1707 820-00281 no power stuck at 5v
with u3200 port i get no power cycle and i get 3v3on pp3v3_upc_xb_ldo -
Re: a1707 820-00281 no power stuck at 5v
Check the ldo rails of each and every CD3215.
See here for an article from @Piernov:
https://logi.wiki/index.php/CD3215_Bootup_SequenceComment
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Re: a1707 820-00281 no power stuck at 5v
when using u 3200 port (5v on f3001 ) i get :
power meter rebooting loop and PP1V1_UPC_XB_LDO_BMC present
using u 3100 port (5v onf3000 ) no power meter reboot but no PP1V1_UPC_XB_LDO_BMCComment
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Re: a1707 820-00281 no power stuck at 5v
Do test the non powered usb port by rotating the type c connector by 180 degrees.
Then, remove all power. Meter in DIODE mode.
Red meter probe, yes RED to ground.
Black meter probe to the CC1 pin. Reading?
Repeat for CC2 pin. Reading? Repeat for each CD3215 controller.
Post each diode reading.Comment
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Re: a1707 820-00281 no power stuck at 5v
U3200
CC1 0,540
CC2 0,530
U3100
cc2 0,490
cc1 0,490
ub40
cc2 0,530
cc1 0,520
ub300
cc10,520
cc2 0,530Comment
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Re: a1707 820-00281 no power stuck at 5v
other values :
PP3V3_UPC_XB_LDO = 3,3
PP1V8_UPC_XB_LDO = 1,8
PP1V8_UPC_XB_LDOA = 1,8
PP1V1_UPC_XB_LDO_BM 1,1
HV GATE 1 11V
HV GATE 2 7,20V
PPDCIN_G3H 5V
TBA_VDDA = 5V
PM_EN_PP3V3_G3H 3,3
PP3V3_G3H 3,3
PP1V2_S5_SMC_VDDC 1,2
PP3V0_S5_AVREF_SMC 3V
SLC/SDA 3,3
sMC_RESETL_L 3,3Comment
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Re: a1707 820-00281 no power stuck at 5v
There may be trouble with CD3100 due to the different CCx diode readings.
Can you measure & post the LDO list of values for each CD3215 controller ? Just like your last post but do label which CD3215 is which in your next post of voltages.
U3100
cc2 0,490
cc1 0,490Comment
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Re: a1707 820-00281 no power stuck at 5v
u3100
PP3V3_UPC_XA_LDO = 3,3
PP1V8_UPC_XA_LDO = 1,8
PP1V8_UPC_XA_LDOA = 1,8
PP1V1_UPC_XA_LDO_BM 0v
ub400
PP3V3_UPC_tb_LDO = 3,3
PP1V8_UPC_tb_LDO = 1,8
PP1V8_UPC_tb_LDOA = 1,8
PP1V1_UPC_tb_LDO_BM 0v
ub300
PP3V3_UPC_ta_LDO = 3,3
PP1V8_UPC_ta_LDO = 1,8
PP1V8_UPC_ta_LDOA = 1,8
PP1V1_UPC_ta_LDO_BM 0vComment
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Re: a1707 820-00281 no power stuck at 5v
What is the voltage of PPBUS_G3H ?Comment
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Re: a1707 820-00281 no power stuck at 5v
Remove all power. Check the resistance to ground of ppbus_g3h. One meter probe on ppbus_g3h, other meter probe to ground.
Remove the fuse on ppbus_g3h.
Power up again and check the voltage of ppbus_g3h before the fuse with your external power adapter.Comment
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Re: a1707 820-00281 no power stuck at 5v
7 megaohm value ,
no voltage without fuse, no short on pin 1 of fuse ,Comment
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Re: a1707 820-00281 no power stuck at 5v
Has the SMC been replaced by you or before you ?Comment
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Re: a1707 820-00281 no power stuck at 5v
Resistance is fine - no short.
1) Confirm the input voltage to the U7000 (ISL9239) @ PPDCIN_G3H (see the left side of the schematic page with U7000).
What is the voltage ?
Any liquid damage / corrosion in this area of the logic board ?
2) See attached. Post the voltage readings of D6902 pins (although you have listed that PP3V3_G3H is present in an earlier post).
3) Confirm again the presence and voltage of PP3V3_G3H.Attached FilesComment
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Re: a1707 820-00281 no power stuck at 5v
PPDCIN_G3H 5c i confirm
Pin1 5v
Pin2 0v
Pin3 4.8vLast edited by lordgeny; 09-06-2022, 05:56 AM.Comment
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Re: a1707 820-00281 no power stuck at 5v
strange thing before in the port of the u3200 waiting for a bit it switch to 20v. I connected the battery and I had fans and a low battery symbol, in the meantime I had heat in the u 3200 area, now I no longer even have 5v on the f3001.
with the other ports it did not switch to 20vComment
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Re: a1707 820-00281 no power stuck at 5v
i replaced the u3200 , first try 5v low absorption 200ma, after no more absorption .Comment
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Re: a1707 820-00281 no power stuck at 5v
Did you replace with the same part number on U3200 ?
Is the IC a known good device or is from a donor board ?
Your logic board now consumes 200mA and then 0ma ? Is it power cycling ? Need full details.
Watch this video and post your updates:
https://www.youtube.com/watch?v=G1pSqm97j6sLast edited by mon2; 09-06-2022, 09:08 AM.Comment
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Re: a1707 820-00281 no power stuck at 5v
cd3215c00 brand new
0ma no absorb . no more power meter reboot cyclingComment
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Assuming... -
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