MacBook Pro 13'' M2 A2338 get 5V 0A does not boot. 820-02773

[mon2]

Re: MacBook Pro 13'' M2 A2338 get 5V 0A does not boot. 820-02773

Attach the Type C power adapter and locate the local ACE controller linked to the USB connector in use.

Need to check the LDO rails for that ACE controller to confirm the ACE controller is not defective.

Measure the voltage to ground of:

PP3v3_UPC0_LDO (UF400)
PP1v5_UPC0_LDO_CORE (UF400)

PP3v3_UPC1_LDO (UF500)
PP1v5_UPC1_LDO_CORE (UF500)

Remove all power -> meter in resistance mode.

Measure the resistance to ground of PP3v3_S2.

[SMDFlea]

Re: MacBook Pro 13'' M2 A2338 get 5V 0A does not boot. 820-02773

Any hint would be really appreciated

In future please upload all your images to badcaps rather than use an external image host.
Some image hosts add advertising to links for all sorts of shit,including promoting their own site.

[slimmy182]

Re: MacBook Pro 13'' M2 A2338 get 5V 0A does not boot. 820-02773

In future please upload all your images to badcaps rather than use an external image host.
Some image hosts add advertising to links for all sorts of shit,including promoting their own site.

Thank you, I will.


Locig board connected to battery only (no DCIN) show 1.80v fuse @F5200 (2 PPBUS_AON 1 PPVBAT_AON_CHGR_REG. Is that nomal?

[slimmy182]

Re: MacBook Pro 13'' M2 A2338 get 5V 0A does not boot. 820-02773

Attach the Type C power adapter and locate the local ACE controller linked to the USB connector in use.

Need to check the LDO rails for that ACE controller to confirm the ACE controller is not defective.

Measure the voltage to ground of:

PP3v3_UPC0_LDO (UF400)
PP1v5_UPC0_LDO_CORE (UF400)

PP3v3_UPC1_LDO (UF500)
PP1v5_UPC1_LDO_CORE (UF500)

Remove all power -> meter in resistance mode.

Measure the resistance to ground of PP3v3_S2.

PP3v3_UPC0_LDO (UF400) 3.44V
PP1v5_UPC0_LDO_CORE (UF400) 1.48V

PP3v3_UPC1_LDO (UF500) 3.44V
PP1v5_UPC1_LDO_CORE (UF500) 1.48V


resistance to ground of PP3v3_S2.
CC717
1 PP3v3_S2 35(2000K scale) ohms
0 gnd 0 ohms

[slimmy182]

Re: MacBook Pro 13'' M2 A2338 get 5V 0A does not boot. 820-02773

Really stuck on this.

PPBUS_AON 12.30V present,
PP3v8_AON 3.78V present,
PP3v3_s2 0v, not shorted. PP3V3S2_EN not present as well.
P3V3S2_DSCHG_EN_RC 3.40V present.

LDO check on:

U8100

PP3V8_AON_MPMU_ISNS_VIN
CY1M3 3.77V

PPVDD_LDO20_14_8_3
C8300 0V DIODIE MODE 269

PPVDD_S2SW_VDD2H
C83B1 0V DIODE MODE 36

PP1V8_AON
R8620 1.79V

PP3V3_S2_LDO
C8331 0V DIODE MODE 1.25 (20k multimeter scale)


PP1V2_AWAKE_PLL
C8360 0V DIODE MODE 358

PP1V8_AON_MPMU
C84A0 1.79V

PP1V2_AON_MPMU
C8341 1.19V

PP3V3_AON
C83A0 0.33V (CLIKING SOUND WHEN MEASURING) DIODE MODE 0.84 (20K SCALE MULTIMETER)

PP0V855_S2SW_CIO
C83B5 0V DIODE MODE 0.54 (20K SCALE MULTIMETER)

PP3V3_S2SW_SNS
C83D0 0V DIODE MODE 488

PP1V2_S2_CIO
C8350 0V DIODE MODE 01.19 (20K SCALE MULTIMETER)


PP1V5_LDOINT_MPMU
C8380 1.50V





U7700





PP3V8_AON_SPMU_ISNS_VIN
CY1S5 3.77V

PP1V25_S2
RT311 0V DIODE MODE 246

PP0V88_S1
C77C1 0V DIODE MODE 01.27 (20K SCALE MULTIMETER)


PP0V72_S2_VDD_LOW
C7840 0V DIODE MODE 256

PP1V8_AON_SPMU
C7891 1.80V

PP1V2_AON_SPMU
C78A0 1.20V

PP0V8_S1_VDD_FIXED
C78C0 0V DIODE MODE 0.35 (20K SCALE MULTIMETER)


PP1V5_LDOINT_SPMU
C7810 1.50V.


Cliking sound could be related to dead M2 chip?

[slimmy182]

Re: MacBook Pro 13'' M2 A2338 get 5V 0A does not boot. 820-02773

Still in need for help

[mon2]

Re: MacBook Pro 13'' M2 A2338 get 5V 0A does not boot. 820-02773

PPBUS_AON is too low.

Reference:

https://repair.wiki/w/A2337_2020_MacBook_Air

Each battery has a BMS (battery management system) that communicates over smbus (i2c) lines. If either or both of the smbus (SCL and SDA) lines are stuck, this communication will fail to dial up the proper ppbus_aon voltage.

Measure the voltage to ground of each battery connector pin. Post each measurement.

[slimmy182]

Measure the voltage to ground of each battery connector pin. Post each measurement.

J5151
1 GND
2 I2C_SMC_PWR_3V3_SCL 0V
3 I2C_SMC_PWR_3V3_SDA 0V
4 GND
5 NC
6 NC
7 SYS_DETECT_L 0.14V
8 NC
9 NC
10 GND
11 GND
12 GND

[mon2]

Check pins 2 and 3 but in diode mode. Remove the battery and adapter. Red probe to ground. Black to the pin to test.

[slimmy182]

Check pins 2 and 3 but in diode mode

Both 640

[mon2]

Confirm the voltage to ground of PP3V3_AON.

[slimmy182]

PP3V3_AON. 0V

[mon2]

Remove all power -> measure the resistance to ground of this PP3V3_AON power rail.

[CuriousDave]

Did you check the TPS62180 and the NAND chips? I have a few devices with 5V0A and these turned out the SSD got shorted from shorted TPS chip that sent 12V to SSD.

[themikesystems]

Could you help with the board view for the 2022 13-inch M2 MacBook Pro?

[mon2]

What is the A**** number that is laser marked on the bottom side of the laptop? The BV may be already posted (if available) inside the dedicated schematic forum.