Archos 704 wont turn on or charge

First, start with the easy stuff - remove the battery and press the reset button - hold down for about 10 seconds. replace the battery, attach your AC adapter and attempt to start the player. If it still won't start, you may have a damaged DC-In connector OR the charge circuit may be bad - a TI Chip on your main board sometimes goes bad - it can be replaced. Also, if the battery is absolutely dead - no charge left at all, the player will not start even with an AC adapter

The unit charge circuit is failing charging bq24100