
5-2
The power can not be on or off
Go
Yes
Yes
No
No
main board can’t start-up
Yes
Check the power supply from
Check/replace D8,Q1,Q2,Q3,R2
Whether the DVCC3 is ok
check/replace Q5,L12,U2,D5
Replace U6.and peripheral component
No
No
Yes
Yes
Check if the DC_IN from D4 is ok
Whether the U6 and peripheral component is
normal,the program in u6 is normal
Trouble shooting chart
replace adapter
adapter
check the crystalloid is normal,
if the reset circuit , U4 and U8 and
peripheral components are ok
check and replace the bad
Summary of Contents for PD7010
Page 27: ...7 8 MAIN BOARD TOP ...
Page 28: ...7 9 MAIN BOARD BOTTOM ...
Page 29: ...TFT BOARD TOP 7 10 ...
Page 30: ...TFT BOARD BOTTOM 7 11 ...
Page 31: ...KEY BOARD TOP 7 12 ...
Page 32: ...KEY BOARD BOTTOM 7 13 ...
Page 33: ...8 0 Exploded View Diagram 8 1 ...
Page 36: ...9 0 REVISION LIST Version 1 0 x Initial release Version 2 0 xAdd version 93 77 ...