DAEWOO ELECTRONICS DMP-2000 User manual

S er v ice M a nua l
Digital Multi Player
Model: DMP-2000
S/ M No. : OSMP200001
May. 2005
C aution
: In this Manual, s ome parts can be changed for improving,
their performance without notice in the parts list.
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2 Ver1.0
Table of Contents
I. Functionality Test
zTest tools and devices……………………………………………………………....3
zIntroduction of functional buttons………………………………………….…… 3
zTest procedure……………………………………………………………..……... 4
II. Troubleshooting
zUnable to turn power on……………………………………………………….……6
zMalfunction after power on………………………………………………….………6
zAbnormal LCD display………………………………………………………………7
zAbnormal video………………………………………………………………………7
zAbnormal flashing……………………………………………………………………7
zUnable to charge battery……………………………………………………………8
zAbnormal voice recording and replaying………………………………………….8
zInaccurate date and time……………………………………………………………8
zButton pressing malfunction……………………………...………………………...8
III. Software Updating
zSoftware updating………………………………………...…………………………8
IV. Disassembling
zDisassembling ……………………………………...……………………………….9
V. Parts List
zParts List……………………………………………………………………………11
VI. Tools
zTools …………………………………………………………..……………………14
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3 Ver1.0
I. Functionality Test
1. Test tools and devices
SD Card, TV, Computer, AC Adapter, TV Cable, USB Cable, Earphone.
2. Introduction of functional buttons
★Front View
★Rear View/ Key Pad Illustration
Flash
Mini USB/Adaptor Port
Earphone/AV out Port
REC/PLAY Button
Mode Button
Direction Button
Tele-Wide Button
Shutter Button
LTPS LCD Panel
Lens
Self-Timer LED
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4 Ver1.0
★Side View
★Top/ Bottom View
3. Test procedure
Test Item TestProcedure
Power supply
system
A. Install Li-Ion battery and press Power Button, watch if
the LCD normal.
B. Press Power Button to turn off the power and close
the LCD Panel, and then open the LCD Panel to see if
the LCD Panel display is normal.
Speaker
Strap
eyelet
LCD Panel
Cover
Power Button
Macro
Switch
Microphon
e
Tripod
Mount
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5 Ver1.0
Test Item TestProcedure
Button functions A. Press Power Button to turn the power on, test the functions of all buttons.
Direction Button:
Right button: Flash AUTO/OFF
Left button: Self-Timer ON/OFF
Up button: Invalid
Down button: LCD Information ON/OFF
Enter button: Menu ON
REC/PLAY button:
Switch between Record Mode and Playback Mode.
MODE button:
Press the MODE button to switch between Movie, Picture, and Voice
Record Mode
Tele-Wide button:
Digital Zoom in and out.
Shutter button:
Start to take movie, picture, or record voice.
Macro switch:
Switch between Macro Mode, Portrait Mode, and Normal Mode.
Flash function Press MODE Button and then press the right button on the Direction Button to
test the flash. LCD display will show ( ) sign indicating the flash is under
charging. After the sign stops flashing, the flash light will go off when
pressing the Shutter Button( ) to shoot picture.
TV function After plugging AV Cable, LCD display will show ( ), then select TV key,
the output will be sent to TV.
MP3 play function A. Press REC/Play Button( ) to enter the function manu, use Up/Down
Button to select Music Option ( ). After entering MP3 play ( )mode
press Shutter Button( ) to play music through the speaker.
B. To use the earphone listen to MP3 music, plug in the earphone first, LCD
display will show ( ) and then select Earphone to listen the music through
earphone.
USB function Plug in USB Cable, listen to the power on sound from the speaker and watch
the LED on the five-direction button to flash, the connection to PC is then ready.
Battery charging
function Plug AC adapter, the Self Timer LED will stay on or flash, the battery is under charging if flashing, fully charged if staying on. Press power button to check if
LCD Panel display is normal.
Voice recording
function A. Press MODE button to switch to Voice Record Mode.
B. Press shutter button ( ) to record voice.
C. Press shutter button ( ) again to stop.
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6 Ver1.0
Film recording A.You can start recording film by pressing shutter button ( ). When a film is
under recording, a time indicator will display on LCD monitor. To stop
recording, press shutter button ( ) again.
B. To view recorded films, press the REC/PLAY button once to switch to
Playback Mode.
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7 Ver1.0
II. Troubleshooting
Adjust the power supply to 4.2V and make sure that power polarities are correct before
pluggingintothepowertoavoidthedamagetoPCBA.
1.Repairinstruments:
Tri-use meter, oscilloscope, power supply.
2. Troubleshooting:
Symptom Repairing
(1). Press the power button and the power is not on:
A. Check to see if the SW1 function is normal.
B. Make sure that the U18.1 is at High, if U18.1 stays at Low check the
following circuit.
Check if the Q1.D voltage is normal first (2.2V~3.2V).
Replace the main board if no voltage on Q1.D.
C. If the U18.1 signal is normal, then use the meter to check if the 2.5V, 1.8V
and 3.3V voltages are normal. Press down SW1 first and use tri-use meter to
measure the following voltages.
Remove U9, R34 and R36 first and then measure 2.5V to see if it is
normal.
If U18 voltage is normal, replace the main board.
If the 2.5V is normal, then check if the 1.8V voltage is normal.
If it is not, replace the main board.
Check if the 1.8V voltage is normal first and then check if the 3.3V
voltage is normal.
Make sure that the U8.2 output is at 3.7V first, if not, replace the main
board.
(2). Unable to turn the power on after opening the cover:
A. While unable to turn the power on by opening the cover, use SW1 button to
turn the power on first and make sure the power supply is normal.
B. When the power is turned on by pressing SW1, check the circuit of cover
opening. Check if the SW2.1 has voltage first, if not, check D18 and D4. If
the voltage is normal, then check to see if when the magnet is nearing and
away from SW2.2 its status changes from Low to High, if not, replace the
main board.
Unable to turn
on the power
(3). When plug in USB or Adaptor the power can not be turned on:
A. Turn the power on by pressing SW1 first to make sure that the power-on
circuit is normal. Then check if the USB power-on circuit is normal.
B. Check if D11.1 has voltage first, if no voltage, check L9 and D17.
C. Measure to see if D14.2 has 4.3V voltage, if no voltage, replace the main
board.
D. After making sure the input voltages are normal, check power-on circuit to
make sure if Q1.D voltage is normal. If it is normal, check R26,C52,R51
and D8 for any damages, or replace the main board.
Power down
after turning on
(1). Press power button the red light is on and then power goes off:
A. Use oscilloscope to check if R17 had clock output first.
B. If the clock is not normal, it indicates that the program is not yet boot-up.
Check to see if the circuit around U4 DDR RAM is normal. If normal then
replace the main board.
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8 Ver1.0
(2). Power can be turned on but it goes off when replaying picture or video file:
A. Check if the circuit around U4 DDR RAM is normal, if normal then replace
the main board.
B. If U4 is normal but the power goes off while replaying picture or video file,
replace U3, if U4 is damaged, replace the main board.
Symptom Repairing
(1). LCD unable to normally display:
A. Check if J2.1 has 3.3V first.
B. If 3.3V voltage is normal, check if 3.3V on the LCD board is normal. If LCD
board 3.3V is normal, then check if the backlight is normal. If the backlight
circuit does not have 10V output voltage, replace the LCD board.
C. Use oscilloscope to measure if J2
Pin22(LCD_SCL),Pin23(LCD_SDA),Pin24(LCD_CS) and PIN9 (LCDCLK)
have signal output, if abnormal then remove LCD Cable and test one more
time. If still not normal, replace the main board.
D. If the signals on LCD_CS, LCD_SCL, LCD_SDA and LCDCLK of LCD are
normal, check if the components around LCD Panel are normal, if normal
then replace LCD Panel. If still invalid after replacement, replace the LCD
board.
Abnormal LCD
display
(2). LCD shows white display:
LCD shows white display due to bad LCD cable contact.
A. Check if J2 Pin22 (LCD_SCL),Pin23(LCD_SDA) and Pin24(LCD_CS) have
signal output.
B. If the signals from LCD_CS, LCD_SCL and LCD_SDA are normal, then
reinstall LCD cable.
C. If still not normal, replace LCD cable. If the problem remains, replace the
LCD board.
(1). The power-on picture is shown after the power is turned on, but the image
cannot be seen:
The power-on picture is shown after the power is turned on, but the image
cannot be seen, please check sensor board circuit.
A. Check if the connection between sensor board and main board is solid.
B. Use the meter to check if sensor board J1.1 has 3.3V and if J1.3 has 1.8V.
C. Check if sensor board C1.1 has 3.3V voltage, if the voltage is not normal,
then check the sensor board.
D. If the voltage is normal, then use oscilloscope to check if sensor board
J1.16, J1.13, J1.35 and J1.36 have signal output, if not normal, replace the
main board.
E. If the above is normal then replace the sensor board.
Abnormal image
(2). There are thick horizontal lines in the image:
A. Use USB to turn the power on first and view the image on PC.
B. If the lines are still existing on the PC image then check if the sensor board
L1 and C1 are normal. If normal, then replace the sensor board.
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9 Ver1.0
(1). Unable to charge:
A. Check if the battery still has voltage, use tri-use meter to measure if the
U12.3 voltage is at High.
B. If the U12.3 voltage is at High, please check if the voltage is at 2.5V. If the
voltage is not accurate, check if R27 and R100 are normal.
C. If T1.5 does not have output voltage, then replace the main board.
D. If T1.5 voltage is normal then check if D10.1 has the output voltage. If the
output voltage is normal, replace C7.
Flash light not
normal
(2). No flash light:
A. Check if the discharge loop of the flash light circuit and the flash light bulb
are normal first.
B. Check if the D3.K signal is at High.
C. If D3.K signal is at High, then replace Q3. Otherwise check if D3.Ais at
High. If D3.A is at Low, then replace the main board.
D. If problem still remains after replacing SCR, replace the main board.
Symptom Repairing
Unable to charge
the battery (1).Unable to charge the battery: A. Check if J3.4 has 5V voltage first.
B. Check if R7 and R13 have the voltage greater than 2.0V.
C. Check if Q4.S has voltage, if not, replace the main board.
D. Check if Q4.D has voltage, if not, replace the main board.
E. Check if D9.K has voltage, if not, replace the main board.
(1).No sound after power on:
A. Check if the soldering wire of U10 Speaker is broken.
B. Replace U10 Speaker.
C. If problem still remains after replacing the speaker, replace the main board.
Abnormal sound
recording and
replaying
(2). No sound or unclear sound while recording or replaying video:
A. Check if the connection between sensor board and main board is normal.
B. Check if C23, C24, R59 and R71 are normal.
C.Replace U7 microphone.
D.If problem remains after replacing the microphone, replace the main board.
Inaccurate date
and time (1). Inaccurate date and time: A.If the date and time is inaccurate after Power OFF and Power ON, check
R12 and C35.
B.If date and time is too fast, check Y2.
C.If problem still remains, replace the main board.
Button
malfunction (1). Button malfunction after pressing: A. Check if the connection between the key board and the main board is
normal.
B. If it is the five-direction button, please check if key board J1.10 shows the
following voltages when pressing different buttons: Enter (2.76V),
UP(2.20V), Down(1.65V), Left(1.12V), Right(0.55V). If not, check resistors
R1 - R6 or replace Dimple Dome. If J1.10 shows different voltages, please
check if main board J6.10 has the voltage variation. If not, replace the main
board.
C. If other buttons shows problem, please check if Dimple Dome or board to
board connector is normal.
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10 Ver1.0
III. Software Updating
1. Test devices:
Camera, SD card, battery (or charger)
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11 Ver1.0
2. Procedure of software updating:
A. Make sure SD card has the FW for updating (Place FW file zburnT_C7.run.elf and directory
DIC Mat the root directory of the SD card).
B. Place the SD card to the lock status.
C. Place the SD card and the battery into the camera and open the camera.
D. Now you shall see the LED on the Direction Button flashes (If no flashing, please check if the
file on the SD card is correct).
E. When LED is flashing please make sure the camera will not lose the power, otherwise it will
be failed when recording onto FW.
F. Wait till the LED stops flashing, please take out the SD card, power on and test if FW is
correctly updated.
IV. Disassembling
1. Remove six screws on the cover 2. Open the left cover and take off the front cover
3.Remove seven screws on the main 4.Remove crews on the sensor board
board and the speaker holder
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12 Ver1.0
5. Remove right cover and LCD Cable 6.Disassemble screws on the keyboard
and take off the keyboard
7. Take off the sensor board 8. Remove the capacitor holder
9. Remove hinge screw and hinge cover 10. Remove the hinge
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13 Ver1.0
11.Take off the LCD panel 12. Push out the LCD panel cover and
take off the LCD board
12. Mechanical components 13. Electronic components
V. Parts List
Number Name Material Number Quantity
1 Main Board Assembly 725-04220L-A01 1
2 Sensor Board
Assembly 725-04220L-A02 1
3 Key Board Assembly 725-04220L-A03 1
4 LCD Board 700-04220L-A02 1
5 Left Cover 604-04220-A04 1
6 Right Cover 608-64220-A21 1
7 Battery Cover 608-64220-A22 1
8 Front Cover Assembly 618-04220-A04 1
9 LCD Panel 087-04220-A01 1
10 Capacitor Holder 608-14220-A04 1
11 Speaker Holder 608-14220-A02 1
12 LCD Panel Front
Cover Assembly 608-64220-A24 + 609-64220-A06 1
13 LCD Panel Rear Cover
Assembly 608-64220-A23 + 609-04220-A19 1
14 Hinge Cable 618-84220-B01 1
15 Key PAD Assembly 618-44220-A01 1
16 Hinge Upper and
Lower Covers 608-64220-A03 + 608-64220-A04 1
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14 Ver1.0
1. Main Board Assembly 2. Sensor Board Assembly
3.KeyBoardAssembly 4.LCDBoard
5.LeftCover 6.RightCover
7.BatteryCover 8.FrontCoverAssembly
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15 Ver1.0
9. LCD Panel 10. Capacitor Holder
11. Speaker Holder 12. LCD Panel Front Cover Assembly
13. LCD Panel Rear Cover Assembly 14. Hinge Cable
15. Key PAD Assembly 16. Hinge Upper and Lower Covers
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16 Ver1.0
VI. Tools
1. Twister 2.Screwdriver
3. Oscilloscope 4. Power Supply
5. Tri-use Meter
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