DOWNLOAD JBL SB 100 Service Manual ↓ Size: 4.62 MB | Pages: 49 in PDF or view online for FREE

Model
SB 100
Pages
49
Size
4.62 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
sb-100.pdf
Date
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JBL SB 100 Service Manual ▷ View online

       
       
       
 
                   
                   
                   
                   
                   
                   
                     
                     
                     
                 
 
     
                                                           
 
 
4-9
JBL
SB 100 Service Manual
Page 17 of 49
       
       
                   
                   
                   
                   
                     
                         
 
4-10
JBL
SB 100 Service Manual
Page 18 of 49
5-1                             Trouble shooting Chart 
No power supply on power board 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
No power supply 
Go 
Yes 
Fix or replace CN503
 
No
Check BD1, whether more than 85V AC or 
not  
 
No
Replace BD1
 
No
Check U531, T5311 and their network, then  
fix them
 
No
Yes 
Yes 
Yes 
Fix or replace F501 
No
Check U531, U533 and 
their network and fix 
them 
Check CN503 
Input AC 90V and check the output of DC 
18V
 
Check CE502, whether more than 120V DC 
or not 
Check CE532, about 10V DC 
JBL
SB 100 Service Manual
Page 19 of 49
5-2                             Trouble shooting Chart 
Keys do not work 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Keys do not work
 
Go 
No 
Check the connector to the main board
 
Yes 
Replace the connector
 
 
No 
Yes 
Replace U718 on the main board
 
Check XP603 PIN13, PIN14 whether the 
voltage is 3.3V or not 
Fix or replace the key board
 
 
JBL
SB 100 Service Manual
Page 20 of 49
Page of 49
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