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VRX575USB
No switch on LED
No switch on LED
NG
Problem of Q42
Check the operating
of Q42
Replace LED
NG
Problem of touch_5V circuit line
Check of
the connection
of J13
OK
OK
No display RGB image
No display TW8806 image
NG
Problem of VDD5V Circuit line
Check
VDD5V Circuit line
Q1, CON1
Imperfect of U1 (TW8806)
NG
Problem of U1(TW8806)
Check the composite
image
OK
NG
Problem of VDD9V Circuit line
Check
VDD9V Circuit line
U2
OK
NG
Problem of Q7, Q8, Q9
Check
RGB output of
Q7,Q8,Q9
OK
OK
6. NO OPERATING CD/DVD
No loading CD/DVD No eject
No loading CD/DVD No eject
NG
Problem of DVD mechanism
(detective parts)
Escutcheon section
Check
the disc detective
Imperfect of DVD mechanism
NG
Problem of U24
check of U24
DVD(8V)
OK
NG
Problem of DVD mechanism
Escutcheon section
Check
eject the disc
normally
OK
NG
Problem of DVD mechanism
(loading part)
Check
stopping in the time-out
on the way
OK
OK
CD or DVD is loaded, ejected No playing normally
CD or DVD is loaded, ejected
No playing normally
NG
Problem of DVD mechanism
(detective parts)
Escutcheon section
Check
the disc detective
Imperfect of DVD mechanism
NG
Problem of U24
check
the disc normally
OK
NG
Problem of DVD mechanism
Escutcheon section
Check
eject the disc
normally
OK
NG
Problem of DVD mechanism
(loading part)
Check
stopping in the time-out
on the way
OK
OK
Summary of Contents for VRX575USB
Page 5: ... 5 VRX575USB EXPLANATION OF IC uPD78F1165 Main system controller ...
Page 6: ... 6 VRX575USB ELECTRICAL CONNECTION 1 Wire Connection ...
Page 13: ... 13 VRX575USB EXPLODED VEIW PARTS LIST ...
Page 14: ... 14 VRX575USB ELECTRICAL PART LIST ...
Page 15: ... 15 VRX575USB ...
Page 16: ... 16 VRX575USB ...
Page 17: ... 17 VRX575USB ...
Page 18: ... 18 VRX575USB ...
Page 19: ... 19 VRX575USB ...
Page 20: ... 20 VRX575USB BLOCK DIAGRAM VRX 575USB Block Diagram ...
Page 21: ... 21 VRX575USB ...
Page 22: ... 22 VRX575USB ...
Page 23: ... 23 VRX575USB ...
Page 24: ... 24 VRX575USB ...
Page 25: ... 25 VRX575USB ...
Page 26: ... 26 VRX575USB ...
Page 27: ... 27 VRX575USB ...
Page 28: ... 28 VRX575USB ...
Page 29: ... 29 VRX575USB ...
Page 30: ... 30 VRX575USB ...
Page 31: ... 31 VRX575USB ...
Page 32: ... 32 VRX576USB ...
Page 33: ... 33 VRX575USB ...