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4. inductor indication, 5. waveform and voltage measurement, 6. others – Toshiba SD-9100 User Manual

Page 5: 7. when replaced rom ics or upgraded firmware

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1-4. Inductor Indication

Unit

None

...........

Η

µ

...........

µ

H

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

Eg. 5

Fig. 3-1-4

Fig. 3-1-5

Type name

10

µ

Type

Tolerance

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.

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.

Computer
(MS-DOS/PC-DOS)

DATA UPDATE KIT

(RS-232C Interface/cable)

DVD video player

RS-232C
cable

MAIN PC Board

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.

3-2