DOWNLOAD Harman Kardon BDS 235 Service Manual ↓ Size: 8.77 MB | Pages: 63 in PDF or view online for FREE

Model
BDS 235
Pages
63
Size
8.77 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
bds-235.pdf
Date
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5-7                             Trouble shooting Chart 
Tuner FM does not work 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Tuner FM does not work 
Go 
Check the DVD mode is 
OK, audio output is ok 
Yes 
Check Tuner module 
pin5 supply voltage is 
about +3.3V 
Replace the Main board
 
No
Check Main board tuner voltage supply 
circuit.
 
No
Change the Tuner module
 
No
Check Tuner module 
pin7,pin8,L/R output 
Yes 
Yes 
Check the U205  is 
working normal
 
No
Yes 
Replace U205 
Replace Main Board 
5-8                             Trouble shooting Chart 
AUX in does not work 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
AUX in does not 
work 
Go 
Check the DVD mode is 
OK, audio output is ok 
 
No 
Replace the Main board
 
Check the Main board 
U205 AK5367 PIN2,PIN3, 
PIN4,PIN5 L/R signal input 
Yes 
Check the main board R221—R224 
and C249, C251, C252, C267 
No 
Yes 
Replace U205  AK5367
 
Check U205 
AK5367 is broken. 
 
Check the U100C
 
 
No 
Yes 
check the U205 
AK5367 
PIN30,VDD+5V, 
 
Check the main board U205 
power supply circuit 
No 
Yes 
5-9                             Trouble shooting Chart 
USB in does not work 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
AUX in does not 
work 
Go 
Check the DVD mode is 
OK, audio output is ok 
No 
Replace the Main board
 
Check the 4pin cable from 
USB board to the main 
board and connector is ok 
Yes 
Replace the 4pin cable or 
connector 
No 
Yes 
Check USB voltage 
supply is about 5V,
 
Check the main board U3 power 
supply circuit 
No 
Check the main 
board U43 is broken
 
Yes 
Replace the Main board
 
No 
Yes 
Replace the Main board U43
5-10                             Trouble shooting Chart 
COAX in does not work 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
COAX in does not 
work 
Go 
Check the DVD mode is 
OK,audio output is ok 
 
No 
Replace the Main board
 
Check the 26pin cable is 
connected well for XP606 
on main board to XP27 on 
AU board 
Yes 
Replace the 26pin cable   
No 
Check the R129 is 
OK on the AU board
 
Yes 
Yes 
Replace R129 
No 
Replace the Main board
 
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