Sony HCD-CP505 Service Manual page 28

HCD-CP505
MD TEST MODE
1. Precautions For Use of Test Mode
• As operations related to loading will be performed regardless of the test mode operations being performed, be sure to check that the disc
is stopped before setting and removing it.
Even if the Z (MD) button is pressed while the disc is rotating during continuous playback, continuous recording, etc., the disc will not
stop rotating.
Therefore, it will be ejected while rotating.
Be sure to press the Z (MD) button after pressing the MENU/NO "R" button and the rotation of disc is stopped.
1-1. Recording Laser Emission Mode and Operating Buttons
• Continuous recording mode (CREC 2MODE) (C37)
• Laser power check mode (LDPWR CHECK) (C13)
• Laser power adjustment mode (LDPWR ADJUST) (C04)
• Comparison with initial Iop value written in nonvolatile memory (Iop Compare) (C27)
• Write current Iop value in read nonvolatile memory using microprocessor (Iop NV Save) (C06)
• Traverse (MO) check (EF MO CHECK) (C14)
• Traverse (MO) adjustment (EF MO ADJUST) (C07)
• When pressing the z REC (MD) button.
2. Setting the Test Mode
Procedure : 1. Press the ?/1 button to turn the power on.
2. Press the FUNCTION button to enter "MD" mode.
3. Press three buttons of Z (MD), ENTER/START , and FUNCTION simultaneously.
When the test mode is set, "[Check]" will be displayed. Pressing the . "R" or > "R" button between the
following three groups; ···Tt [Check] Tt [Service] Tt [Develop] Tt ···.
Note: Do not use the test mode in the [Develop] group.
If used, the unit may not operate normally.
If the [Develop] group is set accidentally, press the MENU/NO "R" button immediately to exit the [Develop] group.
3. Releasing the Test Mode
Press the REPEAT "R" button once or the REPEAT
4. Basic Operations of the Test Mode
All operations are performed using the
The functions of these buttons are as follows.
Function name
ENTER/YES "R"
button
MENU/NO "R"
button
"R" "R"
. , > buttons
REC MODE
button
5. Selecting the Test Mode
There are 26 types of test modes as shown below. The groups can be switched by pressing the
the group to be used, press the ENTER/YES "R" button. After setting a certain group, pressing the
switches modes shown below.
Refer to "Group" in the table for details can be selected.
All items used for servicing can be treated using group [Service]. So be carefully not to enter other groups by mistake.
Note: Do not use the test mode in the [Develop] group.
If used, the unit may not operate normally.
If the [Develop] group is set accidentally, press the MENU/NO "R" button immediately to exit the [Develop] group.
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utton twice and ?
b
. "R" , > "R" , ENTER/YES "R" , MENU/NO "R" and REC MODE buttons.
Function
Proceeds onto the next step. Finalizes input
Returns to previous step. Stops operations
Changes parameters and modes
Selects the sub menu
1 button to turn the power off, the set goes to the standby mode.
/
. "R" or
.
> "R" button. After selecting
"R" or > "R" button