![](/images/new-backgrounds/1297636/297636137x1.webp)
5. Trouble shooting
5.3 Charging trouble
Check Points
1 Charging method :
2 Charger detect voltage : 4.0 V
3 Charging time : 2h 30m
4 Charging current : 420 mA
5 CV voltage : 4.2 V
6 Cutoff current : 100 mA
7 Full charge indication current (icon stop current) : 100 mA
8 Recharge voltage : 4.15 V
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| 4.2V~3.75V |
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| VCHG |
| VBAT |
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ICVFP10181E301FR |
| TP1 |
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GND1 GND2 IN OUT | FL200 |
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| CN200 |
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| 21 |
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| 19 |
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| 1 |
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| FB200 | 1800 | 2 |
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| FB201 | 1800 | 3 |
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| FB202 | 1800 | 4 |
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| FB203 | 1800 | 5 |
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| R228 | 1 | 6 |
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| R229 | 1 | 7 |
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| 8 | |
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| FB206 | 1800 | |
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| 9 |
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| 10 |
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| 11 |
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| 12 |
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| 13 |
47 |
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| R230 | 0 | 15 |
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47 |
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47 |
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| 20 |
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| 22 |
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| C214 39p | C215 1u | (1005,10V,K,X5R) |
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3.75V~3.64V 3.64V~3.45V 3.45V~3.35V
CHARGING IC OVP
VBAT VCHG_OVP VBUS_OVP
2V0_VRTC 2V62_VIO VBUS_USB VCHG
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| U201 | ISL9221 |
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| PGND | 13 |
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| TP2 |
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R226 | DNI | R209 | 100K |
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| VDC |
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| 2 | VUSB | VDC_BYP |
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| BAT |
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| _PPR |
| 10 |
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| USB_BYP |
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EOC |
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| _CHG |
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| 5 |
| IVDC |
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CHG_EN |
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| _EN |
| 8 |
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| 6 |
| GND |
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| R215 | 100K | (1608,25V,K,X5R) |
| (1608,25V,K,X5R) |
| 10K | IMIN |
| 7 | 33K |
| R214 | (1005,10V,K,X5R) |
| (1005,10V,K,X5R) |
| (1005,10V,K,X5R) |
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| IUSB |
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| 1u |
| 1u |
| R213 |
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| R216 |
| 16K |
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| 1u |
| 1u |
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| C209 |
| C210 |
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| C211 |
| C212 |
| C213 |
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| (1%) |
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| (1%) |
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LGE Internal Use Only | - 70 - | Copyright © 2008 LG Electronics. Inc. All right reserved. |
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| Only for training and service purposes |