Sony DPP-EX7 Service Manual ▷ View online
4-7
DPP-EX7 V1
4-4. Upgrade
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Download the latest firmware and technical memo from the home page of GSP.
Download the latest firmware and technical memo from the home page of GSP.
1. Firmware
The firmware of the DDP-EX7 is stored in IC102 (flash memory) on the DK-45 board.
The firmware can be upgraded using a PC card or a memory stick by employing flash memory for program storage
The firmware can be upgraded using a PC card or a memory stick by employing flash memory for program storage
memory.
2. Upgrade
Upgrade when requiring the improvement in a function (the version up of firmware).
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Make sure perform the upgrade of firmware after replacing the parts below.
. In case of replacing the DK-45 board
. In case of replacing IC102 on the DK-45 board
Make sure perform the upgrade of firmware after replacing the parts below.
. In case of replacing the DK-45 board
. In case of replacing IC102 on the DK-45 board
3. Upgrading method
1.
Copy the latest firmware (downloaded and depressed folder) to the directory of a memory stick or a PC card.
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For the PC card, the memory stick in which a memory stick PC card adaptor is used causes no problem.
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For the PC card, the memory stick in which a memory stick PC card adaptor is used causes no problem.
2.
Insert the PC card or memory card containing the latest firmware into the PC card or memory stick slots of a printer
and connect the power cord to the printer. (The power LED then lights in red.)
and connect the power cord to the printer. (The power LED then lights in red.)
3.
Press the POWER key while pressing the PRINT key.
4.
Release the keys when the LED of the PC card or memory stick lights and the buzzer “beeps”.
5.
The firmware is upgraded in the order below.
(1) The PC card or memory stick LED blinks.
A file is in the read state from the memory stick or PC card.
(2) “Memory stick”, “PC card”, and “personal computer” LEDs blink at long intervals.
The flash memory is in the clear state.
(3) “Memory stick”, “PC card”, and “personal computer” LEDs blink at short intervals.
The flash memory is in the write state.
(4) “Memory stick”, “PC card”, and “personal computer” LEDs blink at normal intervals.
The flash memory is in the verification state.
(5) “PRINT” LED blink alternately. Upgrading is completed.
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Do not pull out the power cord during upgrading.
Do not pull out the power cord during upgrading.
6.
After completion is confirmed, disconnect the power cord from the printer and take out the memory stick or PC card
from the printer.
from the printer.
7.
Restart the printer in the service mode.
8.
After the “Check Sum value” is displayed on the monitor screen, confirm that the value is the same as for a technical
memo. The Check Sum is displayed in the lowest row of the menu screen of the service mode.
DPP-EX7 V1
SAFETY CHECK-OUT
After correcting the original service problem,
perform the following safety checks before
releasing the set to the customer :
perform the following safety checks before
releasing the set to the customer :
Check the metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC
leakage. Check leakage as described below.
and all other exposed metal parts for AC
leakage. Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to
earth ground and from all exposed metal parts to
any exposed metal part having a return to
chassis, must not exceed 3.5 mA. Leakage
current can be measured by any one of three
methods.
earth ground and from all exposed metal parts to
any exposed metal part having a return to
chassis, must not exceed 3.5 mA. Leakage
current can be measured by any one of three
methods.
1. A commercial leakage tester, such as the
Simpson 229 or RCA WT-540A. Follow the
manufacturers’ instructions to use these
instruments.
manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The
Data Precision 245 digital multimeter is
suitable for this job.
suitable for this job.
3. Measuring the voltage drop across a resistor
by means of a VOM or battery-operated AC
voltmeter. The “limit” indication is 5.25 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM
that is suitable. Nearly all battery operated
digital multimeters that have a 20 V AC range
are suitable. (See Fig. A)
voltmeter. The “limit” indication is 5.25 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM
that is suitable. Nearly all battery operated
digital multimeters that have a 20 V AC range
are suitable. (See Fig. A)
To Exposed Metal
Parts on Set
Parts on Set
Fig A. Using an AC voltmeter to check AC leakage.
AC
voltmeter
(5.25V)
voltmeter
(5.25V)
Earth Ground
0.15
µ
F
1.5 k
Z
Printed in Japan
Sony Corporation
2002. 11 22
B&P Company
©2002
DPP-EX7 (UC, CE, KR) E
9-955-392-11
