DPP-EX7 - Sony Other Service Manuals Service Manual (repair manual). Page 27

4-1

DPP-EX7 V1

Electrical troubles are described below.

Trouble: No memory stick image can be read.
Remedy:

. Confirm the input selector switch is set to the memory stick.
. Confirm CN181 on the DK-45 board and the peripheral circuit.
. Confirm IC101 on the DK-45 board and the peripheral circuit.
. Confirm the file format is enabled for the memory stick image.

Trouble: No PC card image can be read.
Remedy:

. Confirm the input selector is set to the PC card.
. Confirm CN254 on the DK-45 board and the peripheral circuit.
. Confirm IC251 on the DK-45 board and the peripheral circuit.
. Confirm the file format is enabled for the memory stick image.

Trouble: A printer is not recognized by the personal computer.
Remedy:

. Confirm IC951 on the MD-45 board and the peripheral circuit.
. Confirm IC101 on the DK-45 board and the peripheral circuit.
. Confirm flexible flat cable (26 pins).

Trouble: The print color is not proper and the image is not normal.

Remedy:

. Make a gray print in “MECHANIC TEST” of the service mode for confirmation.

(Refer to “3-4. Density Adjustment for During Thermal Head Replacement”.)

. Confirm CN253 on the DK-45 board and the peripheral circuit.
. Confirm flat cable FFC (between DK-45 board and thermal head).

Trouble: No image appears on the LCD.

Remedy:

. Confirm flexible wiring board between the LCD and the main unit.
. Confirm IC101 on the DK-45 board and the peripheral circuit.
. Confirm CN201 on the DK-45 board and the peripheral circuit.
. Confirm the liquid crystal displaying module, inverter unit and flexible flat cable.
. Confirm “LCD CONTRAST” of the service mode.

Trouble: Touch panel does not operate.
Remedy:

. Confirm touch panel.
. Confirm the TP-45 board.
. Confirm flexible wiring board between the LCD and the main unit.