5-2-4. DRIVE FUNCTION CHECK5-2-4-1. Pre-Setting for Test Mode Operation
Since CDM-56 models is adjustment-free drive, there is no potenti-Note: This section is performed only specified following sections.
ometer fo electrical adjustment in the MA-C30 Mounted Board.Note: This section describes usages of Test Mode Operation and
Therefore BU or MA Mounted Board can be swapped over withoutsignal checking on the CDM-56 drives with the with the
any manual adjustment so that you will easily find defective com-COMMAND SW on the back panel and the TEST button
ponents (if the trouble depends on BU or MA Mounted Board).(MAIN board).
(Refer to 5-2-4-2.)
Note: All of adjustment items, will be automatically performed af-
ter power-on by the function of CD DSP IC.
The page 23 shows the sequence of execution items in Power-SCSI TERM
On Reset Actions. It will help you finding any defective pointMODES706
S707
on the drive to know the specified processing sequence of the
ON
auto adjustment items and driveOs action in the Power-On Re-
set Actions.OFF
ID2 ID1 ID0
PARITY
Preparing
The following tools and measuring equipments are necessary for
performing this section.
Oscilloscope
TEST
Sony Test Disc (YEDS-18)(3-702-101-01)
SW601
a. Set the COMMAND SW on the back panel as below.
ID2ID1ID0PARITY
ONOFFONON
b. While pressing the TEST button of the controller, turn on the
power of the CDJ-C50S.
d. About 1 second later, release the TEST button.
Note: Even if drive is Test Mode, OPEN button is activated.
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ACEC
