Fiio E12 Operating and maintenance instructions

Maintenance instruction
File NO.：FiiO-GCZD-2013-1-26
File category：[maintenance
instruction]
Item NO.：E12
Code NO.：5530035
Released by：Engineering Dept.
Date：2013-1-26
Readers: FiiO manufacturing dept, quality dept and FiiO official agents，users
Maintenance instruction of changing E12’S main board
In order to make customers more satisfied, speed up the procedures of
handling repaired products and reduce the both way shipping cost, so from next
year sales agents will do the board-level maintenance for the models whose value
is high and motherboard is easy to change. (Changing the motherboard instead of
changing spare parts)
This maintenance instruction is suitable for sales agents or users who will
change E12’s main board .Please see following details:
Detail
s
Tools for disassembling E12 (“+”shape screw driver, tweezers, soldering iron)
1. Disassembling

Maintenance instruction
Take out two screws in backboard with a “+”shape screwdriver and then
open the back board, see above pictures.
2. Take off BASS button. Inserting into the bottom of aluminum button with
tweezers and then pray it out properly.
3. Push the stand of the main board inward properly, then take it out after
pushing off. See above pictures.
4. Pull out the potentiometer knob with your hand properly, see above pictures.

Maintenance instruction
5. Use the tweezers to take left/right buckles out properly, see above pictures.
7. Wring out potentiometer nub with tweezers，and then wring out three screws of
the main board, please see above pictures.
8. Take out the battery with soldering iron, and then take out the hardware
chips ,see above pictures.

Maintenance instruction
9. Take out the silicone bond of potentiometer with tweezers, see above pictures.
10. Change the new main board and then assemble it in the opposite way.
Appli
catio
n
Suitable for sales agents/users to fix or change the main board.
remar
ks
Draft( Engineer dept.):
Review(Quality dept.)
Huanshan Li 2013/1/26
Willson 2013/1/26
Approve( Manager)
James 2013/1/26