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Model
DPP-FP55
Pages
28
Size
775.04 KB
Type
PDF
Document
Service Manual
Brand
Device
Service Manual / Other
File
dpp-fp55.pdf
Date

Sony DPP-FP55 Service Manual ▷ View online

1-1
DPP-FP55
   1.
SERVICE NOTE
NOTES ON BGA BOARD REPLACEMENT
When replacing the BGA board, be sure to writing the newest firmware.
For detail, refer to “5. FIRMWARE WRITING AND VERSION UPGRADE”.
NOTES ON THERMAL PRINTER (MD) AND MAIN BOARD REPLACEMENT
When replacing the thermal printer (MD) and MAIN board, be sure to adjust the density.
For detail, refer to Section 1-1-3.
NOTES ON LCD ADJUSTMENT AFTER REPLACEMENT
When replacing the LCD, be sure to LCD contrast can be adjusted and the color display can be check using the service mode as follows.
For detail, refer to Section 1-1-4.
ADJUSTING ITEMS WHEN REPLACING MAIN PARTS
When replacing main parts, adjust the items indicated by z in the following table.
Main Parts Replacement
z z
z
z
*
z
z
*
z
z z
z
z z z
z
z
z z
z
z z
z
z z z
z
z
z z z z
z
LCD replacement
MD replacement
Main board replacement
K
ey boar
d r
eplacement
BGA board replacement
Firmw
ar
e v
ersion upg
rade
* If destination is changed after version upgrade is
completed, execute both items of destination change
and LCD contrast adjustment (VCOM).
Adjustment Items
Check Items
Density adjustment
LCD contrast adjustment (VCOM)
Firmware writing
Destination setting
USB serial number re-writing
Fan operation check
Button operation check
LED operation check
Tray sensor
Ribbon sensor
Memory card reading check
USB communication check
Print check
CHECKSUM check
1-2
DPP-FP55
1-1. SERVICE MODE
Note on the service mode screen:
The selected item on the screen displayed in the service mode is
framed by “yellow frame”. In this manual, the yellow frame is
referred to as “frame”.
1-1-1. STARTUP/QUITTING PROCEDURE
Note on starting the service mode:
• Do not use the mode that is not described in this manual.
• Perform the operation in each mode according to the operation
procedure in this manual.
Connection procedure:
1.
Insert one power cord plug into the AC adapter (AC-S2425)
supplied with the DPP-FP55 (hereafter, referred to as this unit)
and insert the other power cord plug into the receptacle.
2.
Insert the DC plug of the supplied AC adapter into the DC-IN
terminal of this unit.
Procedure:
1.
Press the [ON/STANDBY] button while pressing the [ENTER]
and [CANCEL] buttons simultaneously.
2.
Release all buttons when the initial screen of the service modeis
displayed.
3.
Select each mode except the USB Test mode, by using the
[ARROW] button (f,F) (framed item) and press the [ENTER]
button.
4.
Press the [CANCEL] button to return to the startup screen of
the service mode while any test mode other than the Button
Test is running.
5.
Press the [ON/STANDBY] button to quit the service mode
while any test mode other than the Button Test is running.
(POWER OFF)
1-3
DPP-FP55
1-1-3. DENSITY ADJUSTMENT PROCEDURE WHEN
REPLACING THERMAL PRINTER (MD) OR
MAIN BOARD
The density adjustment is required after replacing the thermal printer
or the main board.
Preparation:
Before replacing the thermal printer or the main board, print a test
pattern (17 step) as the reference of density.
The test pattern (17 step) should be printed before replacing the
thermal printer or the main board, or when this unit is in the normal
state.
Note:
If there is any printing failure in the test pattern (17 step) printed
before replacing the thermal printer or the main board, do not use it.
Or in case that the test pattern (17 step) cannot be printed, use the
test pattern that is printed by using the normally-working printer
(DPP-FP55).
Procedure:
1.
Set the ribbon and paper to this unit.
Note:
Use the ribbon and paper below.
Color print pack SVM-F40P (postcard size)
2.
Start the service mode. (Refer to Section 1-1-1.)
3.
Select “Print Calibrate” using the arrow buttons (f,F) and press
the [ENTER] button.
4.
When the following screen is displayed on the LCD of this
unit, press the [PRINT] button.
5.
Quit the service mode. (Refer to Section 1-1-1.)
Keep the printed output produced in step 4 as the reference.
6.
Replace the thermal printer or the main board.
(Refer to Section 3.)
7.
Perform the steps 1. to 4. again to print the test pattern (17
step).
8.
Compare the test pattern printed in step 7. with the test pattern
(17 step) printed (reference test pattern (17 step)) in step 4.
Compare the density in each step from the leftmost black pattern
to the rightmost black pattern. If the density in each step is the
same level, there is no problem.
• When the test pattern (17 step) in step 7. is darker than the
test pattern (17 step) (reference) in step 4.:
Slightly rotate the adjustment volume (RV201) on the main
board clockwise.
Print the test pattern (17 step) again and check the density.
• When the test pattern (17 step) in step 7. is lighter than the
test pattern (17 step) (reference) in step 4.:
Slightly rotate the adjustment volume (RV201) on the main
board counterclockwise.
1-1-2. FAN OPERATION CHECK
Operation of fan can be check as follows:
Procedure:
1.
Start the service mode. (Refer to Section 1-1-1.)
2.
Press the [PRINT] button on the service mode startup screen.
3.
Check that the fan rotating sound changes in the following order
starting from
Low speed 
t High speed t Stop by every
pressing of the [PRINT] button.
4.
Quit the service mode. (Refer to Section 1-1-1.)
Printing of the test pattern (17 step) starts.
MAIN BOARD (SIDE A)
S704
S401
RV201
S701
Print the test pattern (17 step) again and check the density.
Repeat the above until the same level density can be obtained.
9.
Quit the service mode. (Refer to Section 1-1-1.)
1-4
DPP-FP55
Procedure:
1.
Start the service mode. (Refer to Section 1-1-1.)
2.
Select “LCD Calibrate” using the arrow buttons (f,F) and press
the [ENTER] button. Then, the contrast adjustment is enabled.
3.
When the following display appears on the LCD screen, match
color of the left half screen with that of the right half screen
using the arrow buttons (g, G).  (The VCOM data should be
“05” to “1F”.)
1-1-4. LCD ADJUSTMENT AFTER REPLACEMENT
LCD contrast can be adjusted and the color display can be check
using the service mode as follows:
4.
When the arrow buttons (f, F) is pressed, color display can be
confirmed in the following order:
f
F
White
Black
Gray (thick)
Gray (thin)
Blue
Green
Red
5.
When the [ENTER] button is pressed, the screen returns to the
service mode startup  screen.
Note:
The screen returns to the startup screen of the service mode
when the [CANCEL] button is pressed. However, the LCD
contrast adjustment data that is obtained by step 3 is not saved
if the [CANCEL] button is pressed.
6.
Quit the service mode. (Refer to Section 1-1-1.)
1-1-5. BUTTON/LED/TRAY SENSOR/RIBBON
SENSOR OPERATION CHECK
The operation of each button, LED and sensors can be checked.
Note:
After the machine enters this mode once, it cannot exit this mode
until the “Button operation check” is completed.
Procedure:
1.
Start the service mode. (Refer to Section 1-1-1.)
2.
Select “Button Test” using the arrow buttons (f,F) and press
 the [ENTER] button.
The following screen is displayed.
LED operation check
Check that the “PRINT LED” and the “Access LED” light up during
the “Button Test”, and then flash before turning off when the “Button
Test” is completed.
Ribbon sensor operation check
Whether the ribbons are correctly recognized or not can be checked.
Check to see that the ribbon type display on the screen agrees with
the inserted ribbon when different types of ribbon are inserted.
Print Pack Size
Display
Postcard size
Post
L size
L
Not installed
None
Tray sensor operation check
Whether the trays are correctly recognized or not can be checked.
Check to see that the tray type displayed on the screen agrees with
the inserted tray when different types of tray are inserted.
Print Pack Size
Display
Postcard size
Post
L size
L
Not installed
None
NG
NG
OK
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