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17 October 2023
- 16:4816:48, 17 October 2023 diff hist +55 Resistors - Repair Basics No edit summary
14 October 2023
- 21:4221:42, 14 October 2023 diff hist −27 Template:Explanatory Guide No edit summary
- 21:4021:40, 14 October 2023 diff hist +6,244 N Resistors - Repair Basics Created page with "{{Explanatory Guide}}This article aims to provide a comprehensive overview of resistors from a repair perspective, detailing their function, types, common issues, testing methods, and replacement considerations. thumb|Resistor symbols commonly found in schematics (Figure 1) ==What is a resistor?== A resistor is a fundamental electrical component found in every single electronic device and circuit. '''Its role is controlling the flow of elec..." Tag: Visual edit
- 21:3921:39, 14 October 2023 diff hist +14 N File:Resistor types.png No edit summary current
- 21:2921:29, 14 October 2023 diff hist +20 N File:Smd resistor example.png No edit summary current
- 20:2020:20, 14 October 2023 diff hist +33 N File:Voltage divider circuit.png No edit summary current
- 20:0820:08, 14 October 2023 diff hist +58 N File:Resistor symbols.jpg No edit summary current
- 19:3119:31, 14 October 2023 diff hist +168 Template:Create page/many No edit summary
- 19:2619:26, 14 October 2023 diff hist +21 N Template:Explanatory Guide/Example Created page with "{{Explanatory Guide}}" current
- 14:5814:58, 14 October 2023 diff hist +107 MacBook Pro A1989 No backlight after waking from sleep (black screen) repair No edit summary
- 14:5814:58, 14 October 2023 diff hist +539 N MacBook Pro A1989 No backlight after waking from sleep (black screen) repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Black screen after returning from sleep (no backlight but has picture) thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *MacBook works normally, but after waking up from sleep there is no backlight anymore ==Solution== Lid detect sensor (J4800 or J4801) missing PP1v8_SLPS2R or..." Tag: Visual edit
- 14:5514:55, 14 October 2023 diff hist +107 MacBook Pro A1989 No Vcore voltage repair No edit summary
- 14:5514:55, 14 October 2023 diff hist +400 N MacBook Pro A1989 No Vcore voltage repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== MacBook A1989 has no CPU core coltage "Vcore" thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Not turning on ==Solution== Most likely caused by corrosion around U7100, resolder joints and check again." Tag: Visual edit
- 14:5314:53, 14 October 2023 diff hist 0 MacBook Pro A1989 Not turning on, short on PPBUS G3H repair No edit summary Tag: Visual edit
- 14:5314:53, 14 October 2023 diff hist 0 MacBook Pro A1989 No backlight repair No edit summary Tag: Visual edit
- 14:5214:52, 14 October 2023 diff hist 0 MacBook Pro A1989 "Braindead" repair No edit summary Tag: Visual edit
- 14:5014:50, 14 October 2023 diff hist +123 MacBook Pro A1989 "Braindead" repair No edit summary
- 14:5014:50, 14 October 2023 diff hist +523 N MacBook Pro A1989 "Braindead" repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Any shorted subrail on A1990 machines can cause the machine to hang on POST.thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *MacBook hanging on POST ==Solution== *Thermal imaging can reveal abnormal heat caused by a shorted component. *This condition is most frequently caused b..." Tag: Visual edit
- 14:4914:49, 14 October 2023 diff hist +107 MacBook Pro A1989 No image repair No edit summary
- 14:4814:48, 14 October 2023 diff hist +980 N MacBook Pro A1989 No image repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== When the MacBook does turn on but there is no image on the LCD. Backlight may be present but the screen is blackthumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *No image on LCD ==Solution== *Check the LCD cable and the connector on both the screen side and the logic board side...." Tag: Visual edit
- 14:4714:47, 14 October 2023 diff hist +159 MacBook Pro A1989 No backlight repair No edit summary
- 14:4714:47, 14 October 2023 diff hist +1,787 N MacBook Pro A1989 No backlight repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Identifying and solving backlight issues on the A1990 MacBook, as well as similar boards from 2016-2020. A MacBook Pro with no backlight on the display is experiencing an issue where the screen remains dark even though the computer is powered on and operational. This means that while the computer itself may be functioning, the display is not emitting any lig..." Tag: Visual edit
- 14:4614:46, 14 October 2023 diff hist +132 MacBook Pro A1989 Battery not recognized repair No edit summary
- 14:4514:45, 14 October 2023 diff hist +9 MacBook Pro A1990 Battery not recognized repair No edit summary
- 14:4514:45, 14 October 2023 diff hist +666 N MacBook Pro A1989 Battery not recognized repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== MacBook A1989 not recognizing the connected batterythumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *MacBook not turning on. *Battery not recognized/charging ==Solution== *First, '''try a known good battery.''' **If it doesn't work, check the battery cable going to the board. **..." Tag: Visual edit
- 14:4414:44, 14 October 2023 diff hist +123 MacBook Pro A1989 Charger not turning on USB-C meter repair No edit summary
- 14:4414:44, 14 October 2023 diff hist +1,444 N MacBook Pro A1989 Charger not turning on USB-C meter repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== When charging the A1989 MacBook with a USB-C charger and measuring the input current and voltage with a USB-C meter, the meter does not even turn on at all or 0 current.thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *MacBook not turning on. *All voltages missing. *Not charging..." Tag: Visual edit
- 14:4114:41, 14 October 2023 diff hist +123 MacBook Pro A1989 PP3V3 G3H short repair No edit summary
- 14:4114:41, 14 October 2023 diff hist +881 N MacBook Pro A1989 PP3V3 G3H short repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Missing PP3V3_G3H on A1989 MacBook Pro thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *MacBook not turning on. *Not charging ==Solution== ===Diagnostic Steps=== ==== Shorted CD3215 ==== Inject 1V to the shorted rail and check with thermal camera which component is heating u..." Tag: Visual edit
- 14:3214:32, 14 October 2023 diff hist +125 MacBook Pro A1990 Charger stuck at 5V repair →Solution Tag: Visual edit
- 14:3214:32, 14 October 2023 diff hist +133 MacBook Pro A1989 Charger stuck at 5V repair No edit summary
- 14:3214:32, 14 October 2023 diff hist +4,776 N MacBook Pro A1989 Charger stuck at 5V repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== The charging circuit on the MacBook Pro A1989 is not communicating with the charger to send in 20V. thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== * On most cases, the board will not power up. * No charging ==Solution== ===Diagnostic Steps=== ====Check voltage on PPBUS_G3H==..." Tag: Visual edit
- 14:2014:20, 14 October 2023 diff hist +123 MacBook Pro A1989 Not turning on, short on PPBUS G3H repair No edit summary
- 14:1914:19, 14 October 2023 diff hist +807 N MacBook Pro A1989 Not turning on, short on PPBUS G3H repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Repair of a common short on PPBUS_G3H on an A1990 MacBook Pro thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== * MacBook not turning on. * Less than 10 Ohms on PPBUS_G3H as measured with a multimeter (short) * Very low current draw from the charging port at 5V ==Solution== ==..." Tag: Visual edit
- 13:2313:23, 14 October 2023 diff hist −2 MacBook Pro A2338 Not turning on, 0.00 - 0.05A current draw at 5V repair →Repair Steps Tag: Visual edit
11 October 2023
- 16:4316:43, 11 October 2023 diff hist +107 MacBook Pro A1990 Not turning on, with trackpad vibrating repair No edit summary
- 16:4316:43, 11 October 2023 diff hist +928 N MacBook Pro A1990 Not turning on, with trackpad vibrating repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== The MacBook seems braindead because the trackpad is reacting for 20-30 sec and then it stops and On again. On the USBC multimeter we see boot looping from 0.06 to 0.14, at 0.06 the trackpad is not vibrating and on 0.14 is vibrating. Randomly the MacBook starts but for no obvious reason and works fine, once shut down it will not restart File:Placeholder imag..." Tag: Visual edit
- 16:3616:36, 11 October 2023 diff hist +133 MacBook Pro A1990 Question mark folder repair No edit summary
- 16:3616:36, 11 October 2023 diff hist +674 N MacBook Pro A1990 Question mark folder repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Question mark folder, no external boot possible & Recovery does not work on A1990 MacBook thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Question mark folder *No external boot possible *Recovery does not work ==Solution== - Check U9080, U9580, U9000 & U9500 and SSD power ra..." Tag: Visual edit
- 16:3416:34, 11 October 2023 diff hist +48 MacBook Pro A1990 Not turning on, drawing 0.00A - 0.02A at 20V repair No edit summary current
- 16:3416:34, 11 October 2023 diff hist +952 N MacBook Pro A1990 Not turning on, drawing 0.00A - 0.02A at 20V repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== A1990 MacBook not turning on, drawing 0.00A - 0.02A at 20V, PP3V3_G3H_SOCPMU present, but PPVCCPRIMCORE_PRIM_REG and therefore PP3V3_S5 missing. thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Not powering on *Missing PP3V3_S5 and PPVCCPRIMCORE_PRIM_REG voltages *Only drawing..." Tag: Visual edit
- 16:2916:29, 11 October 2023 diff hist +123 MacBook Pro A1990 Not turning on, drawing 0.11A at 20V repair No edit summary
- 16:2916:29, 11 October 2023 diff hist +641 N MacBook Pro A1990 Not turning on, drawing 0.11A at 20V repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== A1990 MacBook not turning on and only drawing 0.11A at 20V thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *MacBook not turning on *current draw of 0.11A at 20V as shown by USB-C meter ==Solution== PP2V5_NAND_SSD0 can be shorted (in this case, PPBUS_G3H luckily didn't go to S..." Tag: Visual edit
- 16:2616:26, 11 October 2023 diff hist +133 MacBook Pro A1990 Not turning on, taking 20V and 0.014A, PP1V8 SUS shorted repair No edit summary
- 16:2616:26, 11 October 2023 diff hist +449 N MacBook Pro A1990 Not turning on, taking 20V and 0.014A, PP1V8 SUS shorted repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== No power, taking 20V and 0.014A, PP1V8_SUS shorted thumb|(Figure 1) PMIC and PCH ==Symptoms== *MacBook not turning on *PP1V8_SUS shorted ==Solution== In this case PCH and PMIC to do. Usually if the board is taking 20V and 0.01A ~ 0.025A there is a problem with some of the PMIC's voltages. See Figure 1" Tag: Visual edit
- 16:2516:25, 11 October 2023 diff hist +27 N File:PMIC + PCH A1990.png No edit summary current
- 16:2016:20, 11 October 2023 diff hist +133 MacBook Pro A1990 No image, EDP PANEL PWR EN missing repair No edit summary
- 16:2016:20, 11 October 2023 diff hist +438 N MacBook Pro A1990 No image, EDP PANEL PWR EN missing repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== A1990 MacBook taking 20V and 1.4A at the first kick then 20V 0.9A and the current was dropping down to 0.8A -> 0.6A -> 0.4A thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *No image on LCD ==Solution== Bad GPU, solved with GPU replacement." Tag: Visual edit
- 16:1816:18, 11 October 2023 diff hist +123 MacBook Pro A1990 "Braindead" repair No edit summary
- 16:1816:18, 11 October 2023 diff hist +531 N MacBook Pro A1990 "Braindead" repair Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Any shorted subrail on A1990 machines can cause the machine to hang on POST. thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *MacBook hanging on POST ==Solution== * Thermal imaging can reveal abnormal heat caused by a shorted component. * This condition is most frequently..." Tag: Visual edit
