Inductor Indication; Waveform And Voltage Measurement; Others; When Replaced Rom Ics Or Upgraded Firmwareo - Mitsubishi Electric DD-6000 Service Manual

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1-4. Inductor Indication

Unit
Tolerance

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.
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.
Computer
(MS-DOS/PC-DOS)
Note:
• The firmware and setup data floppy discs are not available as service parts.
........... Η
None
µ
........... µH
m
........... mH
None
........... ±5%
B
........... ±0.1%
C
........... ±0.25%
D
........... ±0.5%
F
........... ±1%
G
........... ±2%
K
........... ±10%
M
........... ±20%
DATA UPDATE KIT
(RS232C Interface/cable)
RS-232C
cable
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.
Fig. 3-1-6
Eg. 4
Type name
Fig. 3-1-4
Eg. 5
10µ
Type
Tolerance
Fig. 3-1-5
CN601

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