SONY DVPCX995V
Instrukcja Serwisowa

DVP-CX995V SECTION 1 SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. NOTES ON REPLACEMENT OF THE MB BOARD 1. Flash Memory New part of flash memory (IC202) on the MB board cannot be used. Therefore, if the mounted MB board (A-1132-163-A) is replaced, exchange new flash memory with that used before the replacement. 2. Adjustment When replacing the MB board, since the adjustment value is not set up correctly, �Drive Auto Adjustment� in the Test Mode can�t be performed. In this case, initialize memory in the following procedures. Procedure: 1. Connect a video monitor to VIDEO LINE OUT jack (J103). 2. Press the [TOP MENU], [CLEAR], I/1 keys on the remote commander (RM-ASP001) in this order with standby status to enter the Test Mode, then �DIAG START� will be displayed on the fluorescent indicator tube and the Test Mode Menu screen will be displayed on the monitor. 3. Press the [2] key on the remote commander to select the �2. Drive Manual Operation�. 4. Press the [6] key on the remote commander to select the �6. Memory Check�. 5. Press the [CLEAR] key on the remote commander to initialize the memory.
Note: Refer to page 22 for detail of the Test Mode.

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