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6
SECTION 1
SERVICING NOTE
1
Remove the 16 screws (BVTT3 x 8) from the bottom plate. (Refer to Section 3 “Disassembly” Loading panel.)
2
Remove the bottom plate.
3
Rotate the pully gear in the direction of the arrow
A
and open the tray in the direction of the arrow
B
.
4
When checking the laser power, remove beforehand the loading panel by removing the two screws (M2.6) and sliding aside the loading
panel becouse the cable of the laser power meter can be pinched by the loading panel. (Refer to Section 3 “Disassembly” Loading
panel.)
Forced Reset
Use this function when the MDS-JA333ES cannot be operated normally due to hung-up of the microprocessor.
It is recommended to use this function when you cannot exit the test mode or the retry-cause-display mode, or when the normal operation
cannot be performed after the MDS-JA333ES is disassembled once then re-assembled.
HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH IS TURNED OFF, AND LASER POWER CHECK
A
B
Pulley gear
Tray assembly
Two screws
(M2.6)
Remove the Loading panel
To inspect the printed circuit boards, use the following jigs.
• Extension jig to inspect the DIG board
Jig for extension between DIG board CN801 and DA board CN501
Part code number: J-2501-075-A 1 pc
21 pins with 1 mm
Jig for extension between DIG board CN807 and FL board CN701
Part code number: J-2501-199-A 1 pc
21 pins with 1 mm
• Extension jig to inspect the AD board
Jig for extension between DIG board CN802 and AD board CN301
Part code number: J-2501-200-A 1 pc
11 pins with 1 mm