Sony NHF800 service manual CD Run, OfsRun, 000, OPChk, $$####

MZ-NH700/NHF800

Ver 1.1

6. OVERALL ADJUSTMENT MODE

6-1. Operation of The Overall Adjustment Mode

1.Enter the test mode (Display Check mode).

2.Press the [VOL--]key to activate the Overall Adjustment mode where the LCD displays as shown below.

Display

0

AdjF**

Disc mark:

Lit the inner segments: Completed the power supply adjustment.

Lit the outer segments: Completed the charge function check.

“**”:

If “DF” or “FF” is displayed, it mean that completed the servo overall adjustment.

3.To quit the Overall Adjustment mode, press the x key and return to the Display Check mode.

Flow of overall adjustment mode:

Overall Adjustment Mode

0

AdjF**

CD Overall Adjustment Mode

. key	***
		CD Run

xkey

MD1 Overall Adjustment Mode

> key	***
		MD1Run

xkey

Hi-MD3 Overall Adjustment Mode

[VOL +] key	***
		HM3Run

xkey

Stray Light Offset Overall

Adjustment Mode

[VOL --] key	***
		OfsRun

xkey

Optical Pick-up Operation

Check Mode

[GROUP] key	000
		OPChk

xkey

[T MARK] key		Initialize The Adjustment Values
or [REC] switch	911
			ResOK?

xkey

(rotation)

6-2. Error Message in The Overall Adjustment Mode

In the Overall Adjustment mode, if an error occurred, it displays as following table.

Display	Description
Close!	Dose not close the lid
DfDis!	Unsuitableness disc was inserted
NoChg!	Does not finish the charge function check
NoTmp!	Does not setting the temperature correction value
NotCD!	Does not complete the CD Overall adjustment beforethe
	MD1 Overall adjustment
NotM1!	Does not complete the MD1 Overall adjustment
	before the Hi-MD3 Overall adjustment
NotH3!	Does not complete the Hi-MD3 Overall adjustment
	before the Stray Light Offset Overall adjustment
****NG	Error of item number “****”

7. SELF-DIAGNOSIS RESULT DISPLAY MODE

This set uses the self-diagnostic function system in which if an error occurred during the recording or playing, the mechanism control block and the power supply control block in the microcomputer detect it and record its cause as history in the nonvolatile memory. By checking this history in the test mode, you can analyze a fault and determine its location.

Total recording time is recorded as a guideline of how long the optical pick-up has been used, and by comparing it with the total recording time at the time when an error occurred in the self- diagnosis result display mode, you can determine when the error occurred.

Clear the total recording time, if the optical pick-up was replaced.

7-1. Operation of The Self-Diagnosis Result Display Mode

1.Enter the test mode (Display Check mode).

2.Press the > key to activate the Self-Diagnosis Result Display mode where the LCD displays as shown below.

Display

***

$$####

“***” : Error code

“$$” : Error history code

“###” : Total recording time

3.To quit the Self-Diagnosis Result Display mode, press the x key and return to the Display Check mode.

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