|
|
|
Who's Online
There currently are 6043 guests online. |
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Very fast and perfect delivery. Clear and well scanned. A lot of work professionally realized.
Again thak you a lot
 ;
This manual is accurate and of high quality. It is only volume 2 of the service manual. This is schematic, parts lists, and exploded mechanical drawings. The theory of operation and the diss-assembly instructions are in volume 1. The unit can be tricky to dis-assemble portions of so the volume 1 manual can be important. The product description of the manual is accurate but it does not say anything about volume 1 and the image of the front page does clearly say Volume 2.
;
Wellll again thank you very much fast and effective. Clear and well done for such an old TV!!!!
;
It has all the information you will need to fix it. The main circuit diagram is only A4 but being a PDF, you can print it to any size - I did it on two sheets of A3 and it didnt lose any detail - just made it readable when pinned up above the bench. I've found the fault, just need to buy some obscure bits to get it going again!
I cant fault the process, I paid for the manual in the morning and it was ready to download by lunch time.
;
Very good copy in a 54 pages PDF archive. This is my sixth purchase here. :)
5
6
7
8
Symptoms in case of poor adjustment: Error efficiency deteriorated: 10 -3 (Optimum value: 10-4 or lower) High jitter of the RF signal RF waveform deformed Unstable operation in tracking closing and servo control Caution: Avoid exposing your eyes to laser beams for a long time. Preparation for adjustment: Clean both ends of the shafts. Use brand new skew screws supplied with the service kit GXX1234. Procedures: 1. Place the DVD mechanism module upside down. To avoid the disc from being robbed when it is turned upside down, first put a coin of about 1.5 mm on the table, then turn the disc upside down and set it so that the 1 in the figure comes to the point immediately above the coin. 2. After replacing the pickup (by referring to the procedures of "Removing the Pickup."), roughly adjust the three skew screws through visual check so that the pickup is mounted in parallel to the CRG chassis around the inner and outer tacks. 3. Connect an oscilloscope as shown in the connecting diagram. 4. Turn on the power of the product. Load the test disc (GGV1018). 5. In the front-end test mode, set the disc type to DVD layer 1. Then, turn on the power. Move the pickup toward the inner tracks. 6. Turn on the laser diodes. 7. With the focus servo closed, complete all automatic adjustments. Close the tracking servo, and then complete all automatic adjustments. 8 Follow the next procedures, from 8-1 to 8-5, and adjust the (three) skew screws. 8-1 Move the pickup toward the inner track and turn the skew adjustment screw C so that the RF level of oscilloscope becomes the maximum. (Tangential adjustment at the inner track position: Adjust the flatness of the disc at the inner track position with the adjustment screw C) 8-2 Move the pickup toward the outer track and turn the skew adjustment screw B so that the RF level becomes the maximum. (Tangential adjustment at the outer track position: Adjust the flatness of the disc at the outer track position with the adjustment screw B) 8-3 Leave the pickup at the outer track position and turn the skew adjustment screws A and B in the same direction alternately one quarter at a time (A�B�A�B ���) so that the RF level becomes the maximum. (Radial adjustment at the outer track position: Keeping the flatness at the outer track position, adjust the flatness of the whole disk with the adjustment screws A and B) 8-4 Move the pickup toward the inner track and turn the skew adjustment screw C so that the RF level becomes the maximum. (Tangential adjustment at the inner track position: Adjust the flatness of the disc at the inner track position with the djustment screw C) 8-5 Repeat the steps from 8-2 to 8-4 three times, and adjust at the position where the RF level becomes the maximum. 9. Turn off the power in the test mode. After confirming that the disc has stopped, eject the disc. 10. Adjust with a screw rock the shaft and skew adjustment screw to the same state as initial one. Skew adj. screw Apply glue Skew adj. screw
A
B
C
D
Prevent applied glue Shaft from extending beyond this position.
Prevent applied glue from extending beyond this position.
E
C 1 B
A
F
AVIC-N2/XU/UC
5 6 7 8
197
|
|
|
> |
|
