When Replacing Eeprom (Memory) Ic - Sharp DV-RW260S Service Manual

Dvd-rw recorder & vhs video cassette recorder

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If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to

ensure correct data settings while making reference to TABLE 1 and 2.

NOTE:

After the DATA change, if the ENTER button is not pressed at the DATA selection mode and the power is turned off,

the DATA change does not performed.

After the DATA change, press the ENTER button by all means and set to the ADDRESS selection mode, then turn off

the power.

VCR side EEPROM (IC3099) initial setting

INIT +0

Connect the set to TV Monitor.

Turn on the POWER, and set to the VCR mode.

Press both CH UP button on the set and the FF button on the set for more than 2 seconds.

ADDRESS and DATA will appear on TV Monitor as Fig 1.

ADDRESS is now selected and should "blink". Using the Tracking + or - button on the remote, step through the ADDRESS

until required ADDRESS to be changed is reached.

Press ENTER to select DATA. When DATA is selected, it will "blink".

Again, step through the DATA using Tracking + or - button until required DATA value has been selected.

Pressing ENTER will take you back to ADDRESS for further selection if necessary.

Repeat steps 4 to 7 until all data has been checked.

When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.

After the data input, set to the initializing of shipping.

10.

Turn on the POWER, and set to the VCR mode.

11.

Press both CH UP button on the set and the PLAY button on the set for more than 2 seconds.

12.

After the finishing of the initializing of shipping, the unit will turn off automatically.

The unit will now have the correct DATA for the new MEMORY IC.

WHEN REPLACING EEPROM (MEMORY) IC

Table 1

ADDRESS DATA

VER.OEC0158A412A

INIT 00 A1

DATA 19FB

ROM 62AA

PLAY/REC

0010

Fig. 1

C4-1

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