bn880
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- Oct 17, 2013
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So, I had to disassemble my LS430W as it developed a large rattle when driving around, after a very small drop. Can be heard here:
Here are some pics I got while working on the problem:
GPS antenna is a little cube up top. Single wire goes to main board.
Chips covered. Battery completely unmarked.
Speaker and LED board.
GPS chip I gather. I don't know the brand/ID.
All the chips are covered by tin casings which are soldered to the board. Sorry.
The above shows why the battery was loose, it was not glued to the board below and instead to the wires under it.
Under the battery, lead from GPS antenna top, and wires to LED's bottom.
Backside of LCD and LCD ribbon.
Front cover.
Speaker and another angle of front.
This camera stays on battery with LCD for about 10 minutes when not recording or taking photos, about 7 minutes when recording.
So I decided to pull out the unmarked battery for a test:
It measures 3.7mm*20mm*30mm without sticky tape.
Charging voltage and full voltage is ~4.22V
Test on precision (computer controlled) battery discharger produced a result of 174.074mAh down to 3.197V. (discharging was done through 15 Ohm resistor, current was between 270 and 213mA, discharge time 42.53minutes)
This is far lower than the claimed 500mAh, and as I predicted/expected.
By my measurements of the case it should be possible to replace the stock li-polymer battery with 6mm*20mm*30mm relatively easily. (7mm*20mm*30mm MIGHT fit as well, but it will be getting tight)
The camera draws around 450mA when on battery with LCD on but not recording, 550 to 610mA when recording in HD. Therefore it's best to get 25C or better li-po battery.
The lens base is 13mm*13mm with the screws 18mm apart. it is 12.5mm long.
Lens thread is 12mm OD.
All chips are covered up with tin covers which are soldered to the board. Probably to hide what they really are and also possibly to increase heat dissipation and at the same time prevent debris shorting any pins. [It's clarified by jokiin that it's actually mainly for electromagnetic interference] The covers are certainly nicely made and installed.
Few more pics to come.
Here are some pics I got while working on the problem:
GPS antenna is a little cube up top. Single wire goes to main board.
Chips covered. Battery completely unmarked.
Speaker and LED board.
GPS chip I gather. I don't know the brand/ID.
All the chips are covered by tin casings which are soldered to the board. Sorry.
The above shows why the battery was loose, it was not glued to the board below and instead to the wires under it.
Under the battery, lead from GPS antenna top, and wires to LED's bottom.
Backside of LCD and LCD ribbon.
Front cover.
Speaker and another angle of front.
This camera stays on battery with LCD for about 10 minutes when not recording or taking photos, about 7 minutes when recording.
So I decided to pull out the unmarked battery for a test:
It measures 3.7mm*20mm*30mm without sticky tape.
Charging voltage and full voltage is ~4.22V
Test on precision (computer controlled) battery discharger produced a result of 174.074mAh down to 3.197V. (discharging was done through 15 Ohm resistor, current was between 270 and 213mA, discharge time 42.53minutes)
This is far lower than the claimed 500mAh, and as I predicted/expected.
By my measurements of the case it should be possible to replace the stock li-polymer battery with 6mm*20mm*30mm relatively easily. (7mm*20mm*30mm MIGHT fit as well, but it will be getting tight)
The camera draws around 450mA when on battery with LCD on but not recording, 550 to 610mA when recording in HD. Therefore it's best to get 25C or better li-po battery.
The lens base is 13mm*13mm with the screws 18mm apart. it is 12.5mm long.
Lens thread is 12mm OD.
All chips are covered up with tin covers which are soldered to the board. Probably to hide what they really are and also possibly to increase heat dissipation and at the same time prevent debris shorting any pins. [It's clarified by jokiin that it's actually mainly for electromagnetic interference] The covers are certainly nicely made and installed.
Few more pics to come.
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