Pioneer MJ-L5 Service Manual page 76

MJ-L5, SP-L5
Error Display
÷ TOC read was incorrect or could not be read properly.
? DISC
÷ Fault occurred during rewriting of UTOC rewriting, and rewriting
UTOCER W
could not be performed correctly.
÷ Inserted a disc but could not bring in FOCUS.
? DISC
÷ The DRAM has become filled with music data, but they can not
MEM. FULL
be written (to the disc).
÷ After reading UTOC, total number of TNO and NAME characters
BLANK DISC
was 0.
÷ Focus execution error, etc. occurred due to shock during REC-
DEFECT
PLAY.
÷ UTOC read was correct but could not be rewrite it.
UTOCER W
÷ The EEPROM data are incorrect.
EEPROM ER
÷ Never completes EJECT.
MECH ER 3E
÷ Never moves HEAD UP.
3M
÷ Never moves HEAD DOWN.
3L
÷ The set microcomputer and MD mechanism microcomputer
3D
are not communicating properly.
2E
2M
2L
2D
1E
1M
1L
1D
÷ It can't communicate with system control IC and MD mechanism
SIO ERROR
control IC.
76
Details of Error Measure
÷ The TOC data recorded on the disc do not comply with
MD Standards, so try using another disc.
÷ The disc may be scratched or damaged, so try using
another disc.
÷ Scratch on disc. Replaced with other discs.
÷ Check if there are scratches, dusts, fingerprints, or black
spots on disc. Check if disc fluctuates eccentrically or
moves up and down largely.
÷ Check if there are scratches, dusts, fingerprints, or black
spots on disc. Check if disc fluctuates eccentrically or
moves up and down largely.
÷ Record and check if disc is recordable.
÷ Check if there are scratches, dusts, fingerprints, or black
spots on disc. Check if disc fluctuates eccentrically or
moves up and down largely.
÷ Check to see if the recording head contact is correct or if
there are any disconnections between the board and the
recording head.
÷ Try doing a Preliminary Adjustment and a normal
Adjustment. If the problem still persists, replace the
EEPROM.
÷ Check if communication line with the MD mechanism
assy and connector is normal.