|
Who's Online
There currently are 5967 guests online.
|
Categories
|
Information
|
Featured Product
|
|
|
|
|
There are currently no product reviews.
;
Very good scan quality, only PC Board scan not enough contrast.
;
First of all I must say that I received the manual in just a few minutes after placing the order. The copy is well done and very readable. I will buy others soon... Thanks, Meyer
;
Good service manual. I gat all I want. Copy is good, but could be better. All clear and useful. I sincerely recommend.
;
The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.
;
Welcome. The scheme is clearly helped me to repair. Worth to download it.
1
2
3
4
7.3.4.3 Troubleshooting Step 1: Connectors
A
CN701, CN702 Are the connectors securely inserted ? Yes
6
IC703 (pin 1), IC702 (pin 7)
3.3 V Reg. output / 1.8 V Reg. input Is IC703 abnormally hot? Yes No
No Insert the connectors securely.
Is the voltage 3.3 V ? Yes
No
Replace IC703.
To STEP 2 The output and GND may be short-circuited. Check the path between them.
Step 2: Power supply
B
7
IC762 (pins 37, 47) FLASH ROM
1
CN702 (pin 4) Is the voltage 5V? Yes
5 V input Is there any loose connection of CN702? Yes Is the voltage 3.3 V ? Yes Check the MOTHER Assy. No Check the parts and patterns in the path.
No
No
8
IC761 (pins 1,3,9,14,27,43,49) SDRAM
To STEP 1
2
C
IC703 (pin 3)
3.3 V Regulator IC input
Is the voltage 3.3 V ? Yes
No
Check the parts and patterns in the path.
Is the voltage 5V? Yes
No
Check the patterns in the path.
9
IC953 (pin 14) Is the voltage 3.3 V ? Yes
5-3 Converter
No
Check the parts and patterns in the path.
3
IC951 (pin 14)
3-5 Converter
D
Is the voltage 5V? Yes
No
Check the parts and patterns in the path.
10 IC701 (pins 16,33,64,76,112) USB Media control IC
Is the voltage 3.3 V ? Yes
No
Check the parts and patterns in the path.
4
IC771 (pin 5)
USB Power SW
Is the voltage 5V? Yes
E
No
Check the parts and patterns in the path.
11
IC702 (pin 1)
1.8 V Regulator output
5 IC7814 (pins 14, 15) DAC
Is the voltage 5V? Yes No Check the parts and patterns in the path.
Is the voltage 1.8 V ? Yes
No
Is IC702 abnormally hot? Yes
No
Replace IC702.
The output and GND may be short-circuited. Check the path between them.
A
F
116
1 2
VSX-516-K
3 4
|
|
|
> |
|