A. Posner
June 8, 1994

FSB 399 - DOLEV 800 - UPDATE NO. 9

This FSB summarizes recent changes, service updates and tips. It contains Service Updates and Recent ECO's.

Service Updates & Tips
Recent ECO Topics

Service Updates & Tips

1. White coating on the encoder's disk
2. In Line Conveyor
3. Loading Cassette Positioning
4. Spinner Speed Table - Improve Screen Quality

1. White coating on the encoder's disk

Sometimes when experiencing problems with the encoder or encoder index, it is due to a white coating on the encoder disk.

Below is a procedure for cleaning the disk and for eliminating the white coating.

Required Material:

1. Lens tissue (Scitex cat. # 457F40300)
   
2. Spectographic Grade Acetone (Scitex cat. # 480D40100)
   
3. Self-clamping pincers
   
4. Air Blower (Foo Foo)

Procedure:

1. Open the encoder cover and check the encoder disk.
   
   
2. Using a dry, clean gas source, blow away any dust or lint on the optical surface. This step is extremely important, any hard dust particles left on the optical surface can result in a scratch that will damage it and require replacement. If a dry gas source is not available, a rubber bulb can be used to generate a low air pressure for the same purpose.
   
   
3. Wash your hands thoroughly. This step is important for the same reason as the previous one, since any solid particles on the fingers can be transferred to the reflector during the cleaning process and result in a
   scratch.
   
   
4. Take a piece of lens tissue and fold it repeatedly into a pad which is approximately 1cm on a side. The tissue pad should be clamped in the self- clamping pincers.
   
   
5. Saturate the tissue in the acetone. Shake it so that it dries thoroughly.
   
   
6. Wipe the surface of the Encoder disk from one side to the other, in one motion. Be careful that the tip of the pincers do not scratch the disk surface. It is very important to clean the surface very gently and not to force the cleaning tissue on the encoder disk.
   
   
7. Study the surface with various lighting from all angles. Repeat the cleaning with fresh tissue if necessary.

2. In Line Conveyor

The in-line conveyor for connecting an on-line processor will be handled with much more care:

1. It will be cleaned and packed inside the main package.
   
   
2. The outlet tips will be covered with cardboard and will there will be a warning not to lift this edge.
   
   
3. The conveyor will pass ATP before shipment. In a case of problems with the solenoid it should be adjusted according to the procedures in the Dolev 800 TIC, so as to avoid problems.

3. Loading Cassette Positioning

3.1  When replacing a loading cassette, make sure that the new cassette is detected on both - cassette in and
       "No film" detectors. Adjust the detectors if necessary.

3.2  Sometimes, when positioning the cassette into the loading system, the film will go inside the cassette and
       an error in loading will appear. In these cases an adjustment of the light cover pusher (part #129) is needed
       by attaching a washer underneath.

4. Spinner Speed Table - Improve Screen Quality

In order to improve the screen quality, the spinner speed can be modified.

The Spinner Speed Table is accessible through the Machine Menu/Factory
tables - password SCITEX and strobe PLL phase.

The default table looks like:

STROBE PLL PHASE

The factor that might be changed is the maximum speed and it can be changed by 15% in speed in order to improve the film quality.

Recent ECO Topics

ECO 19264
ECO 19291

ECO 19264

Change the CPU 286 board to a new CPU 286 board, catalog number 503C39424.

The new board is a "long" board. Below you can find the board setting:

Highlight "RUN CMOST SETUP" by using the key to move the highlight bar, and press Enter. The AMI BIOS screen will appear on your monitor, similar to the one below:

CMOS SETUP
Date (mn/date/year): Wed. Mar 15, 1989
Time (hour/min/sec): 13:29:34
Floppy drive A: 1.44 MB, 3.5"
Floppy drive B: Not installed

Hard disk C: type     NOT INSTALLED
Hard disk D: type     NOT INSTALLED
Primary display:     NOT INSTALLED
Keyboard:     NOT INSTALLED
BIOS shadow option:    Disabled
Scratch RAM option:    1
EMS size option:    0 KB
Waited stated option:     Enabled
Memory relocation:    Enabled

To highlight the BIOS parameters, use the keys, and the PgUp & PgDn keys to modify the values you need.

DATE and TIME
Set the system's date and time by highlighting the AMI BIOS' date and time feature. Then cycle through the settings with the PgUp and PgDn keys to select the appropriate date and time setting.

FLOPPY DISK DRIVE CONFIGURATION
To configure your system's floppy disk drives, highlight Floppy Drive A: and/or Floppy Drive B: with the arrow keys. Then use the PgUp and PgDn keys to select the drive specifications that correspond to the floppy disk
drive you are using with your system.

Effective as of June 1994 (9424xxxx and up)

ECO 19291

A change in the routing of the cutter left wiring in order to reduce cost.

The new routing is in the front of the loading system (above the cutter chain) and not through the side panels.

Effective as of April 1994.