Sony MX-E501 service manual SELF-DIAGNOSTIC Display Mode, Self-diagnostic mode

Page 10

MZ-E501

4-6. SELF-DIAGNOSTIC DISPLAY MODE

4-6-1. Outline of the function

The Self-diagnostic system is used in this set. If an error occurs during playback, this system detects the fault through the microprocessor’s mechanism and power control blocks and stores the cause in EEPROM in a history format.

This history, which can be viewed in the TEST MODE, provides the means of locating the fault in troubleshooting.

4-6-2. Self-diagnostic mode

1.Set the TEST MODE.

2.With all the LCD display segments blinking on the set, press DISPLAY key and the Self-diagnostic mode is entered.

001 1 Adrs

3.Hereinafter, each time > N key is pressed, the reference information display changes as follows:

0XX

1

# # # #

0XX

 

 

N

# # # #

0XX N1 # # # #

0XX N2 # # # #

0XX R – – – –

History code

Simplified contents

 

Error display code

• Press .

key to go back to the previous display.

• Contents of the history codes

 

 

 

 

History code number

Contents

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

The first error that occurred.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

The last error that occurred.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N-1

 

The first error from the last one.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N-2

 

The second error from the last one.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

Total recording time ( – – – – is displayed

 

 

 

 

 

 

for MZ-E501)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Description of the error display codes

 

 

 

 

Contents of fault

Display code

Meaning of code

Simplified

 

Description

contents

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No error

00

No error

– – – –

No error

 

 

 

 

 

 

 

 

 

01

Access target address illegally specified

Adrs

An attempt to access an abnormal address.

 

 

 

 

 

 

 

Servo system error

 

02

HIGH TEMP

Temp

HIGH TEMP

 

 

 

 

 

 

 

 

 

03

FOCUS ERROR

Fcus

Focus off-center.

 

 

 

 

 

 

 

 

 

 

 

04

SPINDLE ERROR

Spdl

Abnormal rotation of disc

 

 

 

 

 

 

TOC error

11

TOC ERROR

TOC

Faulty TOC contents

 

 

 

 

 

 

Power system error

12

READ DATA ERROR

Data

Data could not be read at SYNC

 

 

 

 

 

 

 

 

 

22

LOWBATT

LBat

Instantaneous interruption detected.

 

 

 

 

 

 

 

 

 

31

OFFSET ERROR

Ofst

Offset error

 

 

 

 

 

 

 

Offset error

32

FE_ABCD_OFFSET_ERR

ABCD

FE ABCD Offset error

 

 

 

 

 

 

 

 

 

33

TE_OFFSET_ERR

TE

TE Offset error

 

 

 

 

 

 

 

 

 

34

X1_TE_OFFSET_ERR

X1TE

X1 TE Offset error

 

 

 

 

 

 

 

 

 

4-6-3. Clearing the error display code After servicing, reset the error display code.

1.Set the TEST MODE.

2.Pressing the DISPLAY key on the remote control activates the self-diagnosis display mode.

3.To reset the error display code, press X key (2 times)on the remote control when the code is displayed. (except “R - - - -” ) (All the data on the 1st, N, N-1 and N-2 will be reset)

10

Image 10
Contents Specifications MZ-E501Diagrams Table of ContentsDisassembly Exploded ViewsSection Servicing Notes Section General Location and Function of Controls GroupSection Disassembly Case ASSY, Holder AssyMechanism Deck Bracket AssyMain Board Optical PICK-UP Assy LCX-4ESetting the Test Mode Section Test ModeGeneral Overall Adjustment Mode Manual ModeHow to set the Manual mode SELF-DIAGNOSTIC Display Mode Self-diagnostic modeSetting the Key Check mode KEY Check ModeSound Skip Check Result Display Mode EIBManual Power Adjustments Section Electrical AdjustmentsReset NV Electrical offset adjustment method Vc PWM Duty H adjustment methodOverall CD and MO adjustment method Overall CD and MO adjustment items Resume clear methodMZ-E501 Section Diagrams WaveformsBlock Diagram Main BoardPrinted Wiring Board Main Section Side a SemiconductorPrinted Wiring Board Main Section Side B Side BOprledgh MZ-E501 2222 IC Block Diagrams IC301 TA2131FL ELIC901 XPC18A32FCR2 IC PIN Function Description Oprledrl OprledglXtest MIFVSS3DSPVDD0 AVS2 AvssAPC DSPVSS0Spcu DSPVDD2DSPVSS1 SpcvMCUVSS0 TEST1, TEST0SSB CLK VL PWMREC LED LCD STBLCD RST TSB SLV CHKSection Exploded Views Main SectionMechanism Section 5961Electrical Parts List Main SectionXPC18A32FCR2 Ver 1.1 Memo MZ-E501 How to distinguish the sets Before change After change¥ Signal path Main Board Main Board + Line Tantalums Schematic Diagram Main /3 See page 9 for IC Block Diagrams IC Block Diagrams IC901 XPC18A32FCR2 Signal C input from the optical pick-up detector IC601 CXD2671-207GA System Control AVS2 Avss DSPVDD2 188,189 Not used open 190 LCD STB 1uF 10% C102 126-246-11 IC XPC18A32FCR2 SWITCH, Tactile VOL− Revision History Ver Date Description of Revision