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HOW TO REPLACE THE MAIN PCB & BD MECHA OR BD MECHA
NOTE: The optical pick-up laser diode (LD) is instantly degraded or damaged by static electricity or a power
surge. When handling the BD MECHA UNIT, always be sure to earth yourself, and use an earth mat on the
workbench and floor for grounding.
• BD MECHA UNIT Replacement Conditions
If the laser amperage (Iop) exceeds the stipulated range (see the laser on/off mode in test mode (page 25)), replace the
BD MECHA or replace the MAIN PCB & BD MECHA. If other problems occur, replace the MAIN PCB & BD MECHA.
Stipulated range: For BD, within ±6 [mA] of the initial value; for DVD/CD, within ±12 [mA] of the initial value.
• The following two parts are specified as service parts for the MECHA UNIT.
1. MAIN PCB & BD MECHA : (Part No. : 919304100180D)
2. BD MECHA :
(Part No. : 919304100230S)
1. How to Replace the MAIN PCB & BD MECHA
(1) Refer to the removal procedure, and remove and replace the MAIN PCB & BD MECHA. (see "DISASSEMBLY")
(2) Follow the firmware update procedure, and update the firmware to the latest version.
(see "VERSION UPGRADE PROCEDURE OF FIRMWARE")
2. How to Replace the BD MECHA
2.1. Devices Used
1. PC
2. USB - 232C (TTL) conversion jig (Model: DUT-06635 by GeeeTech) (Do not supply)
3. 4P RE-PH CONN CORD (1000mm) (Part No. : 61205000300AS)
4. Write software (5.12.71(8550+KES470)_1Dscan.zip)
2.2. Replacement Overview
(1) Before replacing the UNIT, write all of the UNIT data of the unit to be replaced onto the set.
(2) After performing (1), replace the UNIT.
(3) Configure the settings for the set in which the UNIT was replaced.
2.3. Before replacing
[Preparation]
1. Set unit before replacing the UNIT
2. PC with write software (5.12.71(8550+KES470)_1Dscan.zip) installed
3. USB - 232C (TTL) conversion jig
4. UNIT for replacement
