Table of Contents
Advertisement
MZ-E501
5-1. GENERAL
In this set, CD and MO discs can be automatically adjusted by setting
the Overall Adjustment mode within the TEST MODE,
Before performing these automatic adjustments, it is necessary to
clear the memory and adjust the power in the Manual mode.
5-2. NOTES FOR ADJUSTMENT
5-2-1. Jigs
• CD disc
TDYS-1 (part code: 4-963-646-01)
• MO disc
PTDM-1 (part code: J-2501-054-A)
or commercially available MO disc (recorded)
• Digital voltmeter
5-2-2. Adjustment sequence
The adjustments should be always performed in the following
sequence:
1 Reset NV (Clear the memory)
2 Manual power adjustments
Electrical offset adjustments
3
(Do not enter the disc)
4 Overall CD adjustments
5 Overall MO adjustments
RESUME clear
6
5-2-3. Power
The power is supplied with 1.5 V DC from the battery case.
5-3. RESET NV
5-3-1. How to reset NV
1. Set the TEST MODE.
2. Set the Manual mode and set the item No. 021, Reset NV.
LCD display
021 Res NV CC
3. Press X key on the remote control.
LCD display
021 Res OK?
4. Press X key on the remote control again.
LCD display
021 Res ***
After reset is completed.
021 Reset!
5. Press x key to terminate the Manual mode and return to the
TEST MODE.
12
SECTION 5
ELECTRICAL ADJUSTMENTS
Manual mode
Overall adjustment mode
Manual mode
5-4. MANUAL POWER ADJUSTMENTS
5-4-1. Adjustment sequence
The adjustments should be always performed in the following
sequence:
1 Vc PWM Duty (L) adjustment (item No.:762)
r
2 Vc PWM Duty (H) adjustment (item No.:763)
r
3 VLL PWM Duty adjustment (item No.:764)
5-4-2. Vc PWM Duty (L) adjustment method
1. Confirm that the power voltage is at 1.5 V DC.
2. Set the TEST MODE.
3. To set the overall adjustment mode, press VOL– key.
LCD display
000 Assy 00
4. Press PLAY MODE key, and item No. will change to 762.
LCD display
762 VclPWM XX
5. Connect a digital voltmeter to TP901 (VC) on the main board
and adjust VOL+ key (voltage up) and VOL– key (voltage
down) on the remote control.
Adjustment value:2.36V
Standard value:2.35 to 2.365V
MAIN BOARD (SIDE B)
digital voltmeter
TP901 (VC)
6. Press X key to write the adjustment value. Item No.will change
to 763.
Advertisement
Table of Contents
