Sorry can't help 😥
If I remember correctly, the customer took the laptop back without repairing it...
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Re: Lenovo V15-IIL dead
Fixed: replaced PQ101 with AON7410 and the laptop is booting normally.
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Re: Lenovo V15-IIL dead
Just removed PQ101: source & drain are shorted.
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Lenovo V15-IIL dead
Hello guys,
Lenovo V15-IIL M/B GS44D/GS54D NM-C71 Rev 1.0
Customer say that this laptop died righe after connecting an cheap aftermarket PSU.
Some readings:
- VIN = 20V
- PQ100 pin1-3 = 0
- PQ100 pin4 = 0
- PQ100 pin5 = 20V
- V9B+ [PR100 pin4] = 0
- +3VALW [RI4509 pin2] = 0
- +5VALW [UI4302 pin5] = 0
- +3VALW_PCH [DC701 pin2] = 0
- +1.8VALW [RX4601 pin1] = 0
- +VCCIN_AUX [PL9801 pin2] = 0
- ACDRV [PR105 pin2] = 0
- REGN [PC118 pin1] = 6,65V
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Lenovo V130-15IKB: no display
Hello everybody !
I'm working on a Lenovo V130-15IKB M/B LV315KB MB 17807-3M 448.0DC04.003M.
When the client brought it, laptop was almost dead: turn on but no image, no backlight, just a solid CAPS LOCK and POWER led.
Dumped original BIOS.
Flashed some BIOSes found here, also with ME cleared, and now it's booting: still no image on laptop's screen but it's working on HDMI.
Actually I've found some issues also on HDMI: sometimes I get no signal but it's booting because can connect to the desktop with a remote control software.
Readings...
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Re: MacBook A1342 820-2567: green light but won't turn on
Sorry for the late reply
L9710 = 0
L7620 >1,0
L7400 >1,0
L7401 >1,0
L7320 >1,5
[B]L7000 = 12,64[/B]
L7260 >5,0
[B]L7220 = 3,328[/B]
[B]bold[/B] readings are always present, the others last less that .5 second.Re: MacBook A1342 820-2567: green light but won't turn on
Sorry for the late reply
L9710 = 0
L7620 >1,0
L7400 >1,0
L7401 >1,0...
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Re: MacBook A1342 820-2567: green light but won't turn on
I've just noticed that the board P/N is 820-2567-A (not just 820-2567) so I've tried flashing bios from [url]https://www.badcaps.net/forum/showpost.php?p=1211409&postcount=10[/url] and now the laptop doesn't turn on again (fan spin for just half second) Re: MacBook A1342 820-2567: green li...t=10[/url] and
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Re: MacBook A1342 820-2567: green light but won't turn on
Just a reading fix:
- Pin 12 (3V3S5_DRVL) = [B]0.15V[/B]
Now I'll check the BIOS...
Update:
I've flashed the BIOS chip (rom file found on Alisaler, same A1342 820-2567 board) & verified the flash.
Now the laptop turn on, fan at full speed but black screen.
I'm trying SMC & PRAM reset...but doesn't seem to make difference.Re: MacBook A1342 820-2567: green light but won't turn on
Just a reading fix:
- Pin 12 (3V3S5_DRVL) = [B]0.15V[/B]
Last edited by DrFalken; 08-30-2023, 05:31 AM.
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Re: MacBook A1342 820-2567: green light but won't turn on
Readings I've done so far:
[B]U6900[/B]
- Pin 1 (SMC_BC_ACOK_VCC) = 3,4
- Pin 2 (GND) = GND
- Pin 3 (-) = -
- Pin 4 (SYS_ONEWIRE) = 3,38
- Pin 5 (ADAPTER_SENSE_R) = 3,38
[B]Q7001[/B]
- Pin 1+2+3 (PPVDCIN_G3H_PRE) = 16,44
- Pin 4 (CHGR_LOWCURRENT_GATE_R) = 15,33
- Pin 5 (PPVDCIN_G3H_PRE2) = 16,95
[B]Q7000[/B]
- Pin 1+2+3 (PP18V5_G3H) = 16,95
- Pin 4 (CHGR_SGATE) = 6,23
- Pin 5 (PPVDCIN_G3H_PRE2) = 16,95...
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Re: MacBook A1342 820-2567: green light but won't turn on
L9710 > 2 MOhm
L7620 = 115 Ohm
L7400 = 17 Ohm
L7401 = 17 Ohm
L7320 = 160 Ohm
L7000 > 2 MOhm
L7260 > 10 kOhm
L7220 > 15 kOhm
[B][COLOR="Red"]Schematic and boardview[/COLOR][/B] ---> [url]https://www.badcaps.net/forum/showthread.php?p=1265954#post1265954[/url]Re: MacBook A1342 820-2567: green light but won't turn on
L9710 > 2 MOhm
L7620 = 115 Ohm
L7400 = 17 Ohm
L7401...Last edited by Vesko356; 08-28-2023, 10:44 AM. Reason: Attached schematic and boardview removed and replaced with link.
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MacBook A1342 820-2567 Schematic and Boardview
Schematic and Boardview:...
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MacBook A1342 820-2567: green light but won't turn on
Hello everybody !
I've a MacBook A1342, M/B 820-2567, that won't turn on.
Magsafe is solid green, when I press power button the fan spin for just half second.
Some readings:
PPBUS_G3H = 12,58V
PP3V3_S5 = 3,3V
PP3V42_G3H = 3,42V
PP1V1R1V05_S5 = 1,05V
PP18V5_G3H = 16,95V
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Re: Lenovo ideapad 330-15AST dead
Thanks everyone for the help and suggestions
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Re: Lenovo ideapad 330-15AST dead
I've contacted the customer and said that the kids spilled some water on the keyboard a few weeks ago.
Checked all the keys: almost 50% doesn't work.
BTW do You replace only the keyboard or all the upper case ?
The original part from EET is pretty expensive (96.25€+25€ shipping+VAT...almost 150€ only for the part) while other suppliers sells only the keyboard for a lower price......
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Re: Lenovo ideapad 330-15AST dead
LID_SW# = 518KOhm / 3.33V
PBTN_OUT# = 24.1KOhm / 3.33V
Correctly flashed with a 1.8V adapter.
BTW a few minute ago I've noticed a little switch on the m/b and...the laptop boot !
Pressing power button on keyboard still doesn't turn on/off.
I'm also trying other keyboard buttons, some doesn't work so I'm suspecting a bad keyboard (maybe the customer is omitting a liquid spill ?)...
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Re: Lenovo ideapad 330-15AST dead
I've download BIOS from Lenovo, expanded and with an hex editor removed the header and reduced to fit.
Tomorrow Will report other readings.
Maybe a damaged APU?...
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Re: Lenovo ideapad 330-15AST dead
Can I flash EC with a simple ch341a ?...
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Re: Lenovo ideapad 330-15AST dead
ec_smb_ck1 = 3.33v
ec_smb_ck2 = 3.33v
ec_smb_ck3 = 0
ec_smb_da1 = 3.33v
ec_smb_da2 = 3.33v
ec_smb_da3 = 0
EC_RSMRST# = 19.6KOhm
RSMRST#_R = 19.6KOhm
EC_RTCRST#_ON = 9.9MOhm
SUSP# = 100KOhm
VCCRTC = 1.37MOhm...Last edited by DrFalken; 04-04-2023, 11:04 AM.
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Re: Lenovo ideapad 330-15AST dead
EC_RSMRST# = 1.68V
PM_SLP_S3# = 0
PM_SLP_S4# = not present on this board
PM_SLP_S5# = 0
PLT_RST# = 0
SYSON = 0
SUSP = 5V
SUSP# = 0
ON/OFFBTN# = 3.25V...
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