1-4. Inductor Indication

Unit

...........None

Η

 

μ ...........

μH

 

m ...........

mH

Tolerance

None ...........

±5%

 

B ...........

±0.1%

 

C ...........

±0.25%

 

D ...........

±0.5%

 

F ...........

±1%

 

G ...........

±2%

 

K ...........

±10%

 

M ...........

±20%

 

 

 

1-5. Waveform and Voltage Measurement

•The waveforms for CD/DVD and RF shown in the circuit diagrams are obtained when a test disc is played back.

•All voltage values except the waveforms are expressed in DC and measured by a digital voltmeter.

1-6. Others

•The parts marked with “NC” or “KETU” in the circuit diagrams are not used for this model.

Eg. 4

Type name

Fig. 3-1-4

Eg. 5

10μ

TypeTolerance

Fig. 3-1-5

1-7. When Replaced ROM ICs or Upgraded Firmware

1.When replaced the following ROM ICs, it is necessary to write the data into the new ICs.

1)IC615 (firmware)

2)IC613 (Setup default data and other information)

2.When the firmware is upgraded, rewriting the new firmware into IC615 may be requested for servicing.

3.Connect a computer to the main PC board of the DVD video player with using DATA UPDATE KIT (P/No. 79080074). (Fig. 3-2-6)

4.Writing operation

Refer to the instruction attached to the data floppy disc.

DATA UPDATE KIT

(RS-232C Interface/cable)

MAIN PC Board

RS-232C cable

Computer

(MS-DOS/PC-DOS)

DVD video player

Fig. 3-1-6

Note:

•The firmware and setup data floppy discs are not available as service parts. For more information, consult TOSHIBA service office in your area.

3-2