Sony MZ-N505 service manual Configuration of Test Mode, Transition Method in Manual Mode

MZ-N505

CONFIGURATION OF TEST MODE

[Test Mode $Display Check Mode%]

Press the > or [VOL +] key

[Manual Mode]

Press the x key

[Servo Adjustment]

[Audio Adjustment]

[Power Supply Adjustment]

[OP Alignment Adjustment] Press the . or [VOL --] key

[Overall Adjustment Mode]

Press the x key

[Electrical Offset Adjustment]

Power Supply Adjustment

Auto Item Feed

CD Overall Adjustment/

MO Overall Adjustment

Press the [MENU/ENTER] key

[Self-Diagnosis Result Display Mode] Press the x key

Press the N or N and [T MARK/REC] keys

[Sound Skip Check Result Display Mode]

Press the x key

Press the [T MARK/REC] and X keys

[Key Check Mode]

The key check quits, or open the upper panel

MANUAL MODE

Mode to adjust or check the operation of the set by function. Normally, the adjustment in this mode is not executed. However, the Manual mode is used to clear the memory, power supply adjustment, and laser power check before performing automatic adjustments in the Overall Adjustment mode.

• Transition Method in Manual Mode

1.Set the test mode (see page 13).

2.Press the > or[VOL+] key activates the manual mode where the LCD display as shown below.

Set LCD display

000Manual

3.During each test, the optical pick-up moves outward or in- ward while the > or . key is pressed for several sec- onds respectively.

4.Each test item is assigned with a 3-digit item number;

100th place is a major item, 10th place is a medium item, and unit place is a minor item.

The values adjusted in the test mode are written to the nonvolatile memory (for the items where adjustment was made).

[Major item switching]					[VOL +] key: 100th place of item
					number increase.
		key		x key	[VOL --]key: 100th place of item
	N
					number decrease.
[Medium					[VOL +] key: 10th place of item
			item switching]
					number increase.
		key		x key	[VOL --]key: 10th place of item
	N
					number decrease.

[Minor item switching] > key: Unit place of item number increase.

.key: Unit place of item number decrease.

[Adjusted value variation]

[VOL +] key: Increases the adjusted value of the 1st digit

[VOL --]key: Decreases the adjusted value of the 1st digit

[Adjusted value write]

X key: When adjusted value is changed:

Adjusted value is written. When adjusted value is not changed:

That item is adjusted automatically.

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