51
AVX-7300
2
No power
F801(fuse) is broken out?
18.5V is obtained at TP02?
Replace F801.
-12V is obtained at TP05?
3.3V is obtained at TP07?
Input voltage 9Vis obtained at Pin-5 of Q803?
Switching wave are obtained at Pin-1 of Q803?
5.3V is obtained at TP04?
Check Q802 and its periphery.
Check Q801 , VR801 and their periphery.
Yes
Yes
Yes
Yes
Yes
Yes
7.5V is obtained at TP03?
Yes
Check C801.
Yes
No
No
No
No
No
No
No
No
Check Q803 , T801 and their periphery.
Check F801 , input flexible cables,
and their periphery.
Check 18.5V line to remove short-circuits.
(CN003 ,R017 ,Q003 and their periphery.
Check -12V line to remove short-circuits.
(Q502 ,Q505 ,Q501 and their periphery.
Check 3.3V line to remove short-circuits.
(CN003 ,Q005 ,Q003 and their periphery.
Summary of Contents for AVX-7300/ES
Page 4: ...4 AVX 7300 2 2 EXTERIOR 1 3 A E ...
Page 6: ...6 AVX 7300 G 2 3 EXTERIOR 2 3 C F ...
Page 8: ...8 AVX 7300 B 2 4 EXTERIOR 3 3 D ...
Page 19: ...19 AVX 7300 ...
Page 21: ...21 AVX 7300 5 6 7 8 A B C D 5 6 7 8 C RELAY UNIT A CN101 C ...
Page 25: ...25 AVX 7300 ...
Page 26: ...26 AVX 7300 A 1 2 3 4 B C D 1 2 3 4 H C CN1101 3 8 VIDEO SCHEMATIC ...
Page 27: ...27 AVX 7300 5 6 7 8 A B C D 5 6 7 8 H H VIDEO SCHEMATIC ...
Page 29: ...29 AVX 7300 5 6 7 8 A B C D 5 6 7 8 SIDE A A E E CN1901 ...
Page 30: ...30 AVX 7300 A 1 2 3 4 B C D 1 2 3 4 A CONTROL PCB A AV BUS IP OUT IP IN OPT OUT SPEAKER ...
Page 31: ...31 AVX 7300 5 6 7 8 A B C D 5 6 7 8 SIDE B A IC Q FRONT RGB CORD ...
Page 33: ...33 AVX 7300 1 2 3 4 A B C D 1 2 3 4 IC Q C SIDE B RELAY UNIT C ...
Page 38: ...38 AVX 7300 A 1 2 3 4 B C D 1 2 3 4 4 7 VIDEO SCHEMATIC H VIDEO SCHEMATIC H C CN1101 ...