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Trouble Shooting(main unit)
F
Wireless
No Output
Check MD401
No
Check L401 L402 and
Pin1,4 approx +3.3V
connect part
OK or No
OK
YES
Check CN401 CN402
repair this jack
connect jack INT or no
OK
Check IC201 and the
connect part
G
optical&COAXIAL IN
No Output
Check JK304 RB301
INT
Change this jack
CN303 INT or No
OK
Check IC301 Pin14
No
approx +3.3V
Check R309 and connect part
Yes or No
OK
Check IC301 IC201
And Its Conjoint parts
All manuals and user guides at all-guides.com
3 - 2
MAIN UNIT REPAIR CHART 2/2
H
Audio line IN
No Output
INT
Check CN302 RB302
JK306 INT or No
OK
Check IC303 Pin16
No
approx +4.6V
Check Q303 R360
Yes or No
Yes
No
Check IC302 Pin10 +5V
Check L301 C332
OK
Check IC302 IC201
And Its Conjoint parts
No Output
Check JK201
Check IC301 Pin14
Check IC301 IC201
And Its Conjoint parts
I
USB
No Output
Check JK305
INT
Change this jack
INT or No
OK
YES
Check RB302 CN301
INT or No
NO
No
Check IC304 Pin1/6 +5V
OK
Check IC304 IC201
K
And Its Conjoint parts
ARC
INT
Change this jack
INT or No
OK
No
approx +3.3V
Check R309 and connect part
Yes or No
OK
3 - 2
J
Bluetooth
No Output
Check BT401
NO
Change this jk
PIN18 3.9V
OK
Check BT401 pin8/9
Repair RB302 CN301
and the connect part
OK
YES
Check CN405 RB405
Check R347 R348 R349
INT or No
OK
Check IC303 Pin16
approx +4.6V
Yes or No
Yes
Check IC302 Pin10 +5V
OK
Check IC302 IC201
And Its Conjoint parts
Check Q404 R419 L403
and the connect part
Repair RB405 CN405
No
Check Q303 R360
No
Check L301 C332
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