HCD-LV80, LBT-LV80 - Sony Audio Service Manual (repair manual). Page 8

8

Display
  E@@M#*****

@@ : Error number. 00 is the newest.

#

: Operating state of table

0

: Currently in the INITIAL mode

7

: Currently rotating to the right

8

: Currently rotating to the left

A

: Currently chucking down

B

: Currently chucking up

*

: Invalid

• Viewing the NO DISC ERROR history display

(Switch the history by pressing the  REPEAT  button.)

Display
  E@@D##$$%*

@@ : Error number. 00 is the newest

##

: Error contents

01: Focus error
02: GFS error
03: Setup error

$$

: Retries

00: NO DISC is determined without attempting chucking retry
02: NO DISC is determined after chucking retry.

%

: State when determined as NO DISC

1

: When stopped

2

: At setup

3

: At TOC READ

4

: When accessing

5

: When playing

6

: When pausing

7

: When manual searching (during play)

8

: When manual searching (during pausing)

*

: Invalid

This model has the self-diagnosis function for the VIDEO and AUDIO decoder sections.
Immediately after the power on, the self-diagnosis function searches each operation of IC’s around the mechanism control microcomputer
(IC701).
The results can be checked by D502 of the VIDEO board.

Oscilloscope (Waveform)

Symptom

No error

MPEG decoder (IC505)
error

MPEG decoder (IC505)
or
DRAM (IC507) error