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Very quick response. Very good and accurate print quality of the scanned document.
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The service manual was very usable and clear enough to see the individual values of all of the components (unlike some of the service manuals I have gotten in the past from web sites similar to this one). The price was right and the information was greatly appreciated. It helped me with an otherwise very difficult repair. It was much needed and appreciated. A faster turn around on my order would be nice, but I understand the constraints on your staff's time. Thank you for your service.
;
Excellent manual. Helped me out with disassembling and troubleshooting my projector.
;
thanks you are the best.Very good detail, Quick service response. A useful service manual with all details.
;
Great service!!! Polecam gorąco wszystkim zainteresowanym
5
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8
A
USB Troubleshooting
Step 1: Connectors
CN701, CN702 Are the connectors securely inserted ? Yes To STEP 2 The output and GND may be short-circuited. Check the path between them.
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.
B
Step 2: Power supply
1
CN702 (pin 4) 5 V input Is there any loose connection of CN702? Yes
7
IC762 (pins 37, 47) FLASH ROM
Is the voltage 5V? Yes
No
No
Is the voltage 3.3 V ? Yes
No
Check the parts and patterns in the path.
Check the MOTHER Assy.
8
C
IC761 (pins 1,3,9,14,27,43,49) SDRAM
To STEP 1
2
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.
D
3
IC951 (pin 14)
3-5 Converter
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
No
Check the parts and patterns in the path.
E
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.
F
A
VSX-1016V-K
5 6 7 8
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