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There are currently no product reviews.
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Great PDF easy to read good info needed for replacment of belts and assembly and specs.
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complete and unabridged very good quality
easy to download.
recieved in two days.
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Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
MJ-L5, SP-L5
Error Display
? DISC
Details of Error
÷ TOC read was incorrect or could not be read properly.
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.
UTOCER W
÷ Fault occurred during rewriting of UTOC rewriting, and rewriting could not be performed correctly. ÷ Inserted a disc but could not bring in FOCUS.
? DISC
÷ 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.
MEM. FULL
÷ The DRAM has become filled with music data, but they can not be written (to the disc).
BLANK DISC
÷ After reading UTOC, total number of TNO and NAME characters was 0. ÷ Focus execution error, etc. occurred due to shock during RECPLAY. ÷ UTOC read was correct but could not be rewrite it.
DEFECT
÷ 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.
UTOCER W
EEPROM ER
÷ The EEPROM data are incorrect.
MECH ER 3E 3M 3L 3D 2E 2M 2L 2D 1E 1M 1L 1D SIO ERROR
÷ ÷ ÷ ÷
Never completes EJECT. Never moves HEAD UP. Never moves HEAD DOWN. The set microcomputer and MD mechanism microcomputer are not communicating properly.
÷ It can't communicate with system control IC and MD mechanism control IC.
÷ Check if communication line with the MD mechanism assy and connector is normal.
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