| IdeaPad Yoga 910-13IKB Not turning on, not charging, no 19V on board repair | |
|---|---|
| Device | IdeaPad Yoga 910-13IKB |
| Affects part(s) | Main Logic Board |
| Needs equipment | multimeter, soldering iron, soldering station |
| Difficulty | ◉◉◉◌ Hard |
| Type | Soldering |
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Problem description
Fixing an issue with the 910-13IKB Lenovo Yoga where it does not turn on nor charge.
Symptoms
- Not turning on
- No 19V on motherboard
- Not charging
Solution
If charging the battery manually (voltage injection) allows the laptop to power on then the chip on motherboard marked 923 7HRZ (ISL9237) Figure 1 is shorted. This chip monitors system power and talks to the SMBus. Replacing the ISL9237 fixes the problem.