SAMSUNG DIGIMAX MS15 Troubleshooting

Samsung Electronics

12-1

12. Troubleshooting

Charge-LED Malfunction /

INACTIV

abovEnter POWER OFF Mode

Are Pin #1 and #2 of

Charge-LED at 2.9V

when U/D* is inserted

while battery is not

fully charged?

Replace Charge-LED

Check soldering condition of Pin #2 and #49 of IC203

(1) Check soldering condition of Q601 and R625 (2) Replace Q601 if the LED does not work normally even after re-soldering.

Check connection status of 45-Pin FPC into CN601 and Sub-Board

UPGRADE PROGRAM

Are Pin #1 and #49 of

IC204 at 2.9V when neither USB nor

DCJACK is being

inserted?

Does Q601 work

normally when neither USB nor DC

JACK is being

inserted?

Is connection between Sub-Board and CN601

using a 45-pin FPC

OK?

Are Pin #2 and #49 of IC204 at 0V, when U/D* is inserted and battery is not

fully charged?

Is Pin #51 of IC204 at 0V?

Is Pin 44 of IC204 at 0V?

Or is Pin 45 at 2.9V?

CHECK POWER BLOCK(CHARGE)

CHECK DC JACK OR USB

* Check only with Battery

* Check whether voltage at R625 and R626 is 0V

YES

1

2 Charge-LED

3

NO

YES

NO

YES

A

YES

NO

YES

Troubleshooting

12-2

Samsung Electronics

Are Pin #2 and #49 of

IC204 at 0V when U/D*

is inserted and battery is

fully charged?

IS PIN #2 OF IC204 AT

2.9V AND PIN #49 AT 0V DURING M/V*?

Is Pin #51 of IC204 at 0V?

CHECK POWER BLOCK(CHARGE)

(1) UPGRADE PROGRAM (2) CHECK IC204 IF PROGRAM IS UPGRADED

(1) UPGRADE PROGRAM (2) CHECK IC303 IF PROGRAM IS UPGRADED

Repair Done

ENTER POWER ON MODE

A,

NO NO

YES

NO

YES

Troubleshooting

12-3

Samsung Electronics

IS CONNECTION BETWEEN

MODE DIAL FPC AND

CN102 OK?

DO INPUT PIN #31

AND #32 OF IC204 WORK

NORMALLY?

IS SOLDERING

CONDITION OF PIN #31 AND #32 OF

IC204 OK?

DO INPUT PINS(#1~#11) OF CN102 WORK NORMALLY?

UPGRADE PROGRAM

CHECK FPC CONNECTION WITH CN102

CHECK SOLDERING CONDITION OF PIN #31 AND #32 OF IC204

EXAMINE R104~R111

REPLACE MODE DIAL

MODE DIAL INACTIVE

* REFER TO TABLE. 12-1

* REFER TO FIG. 12-1

Table. 12-1

NO MODES CN102 Assigned Pin #s IC204 31Pin Voltage Range[V] IC204 32Pin Voltage Range [V]

1 SET 1 & 2 0 ~ 0.18 2.72 ~ 2.90 (OVER 2.72V) 3 DSC 3 0.425 ~ 0.780 2.72 ~ 2.90 (OVER 2.72V) 5 MPEG 5 0.975 ~ 1.315 2.72 ~ 2.90 (OVER 2.72V) 6 MP3 6 1.553 ~ 1.8936 2.72 ~ 2.90 (OVER 2.72V) 7 VOICE 7 2.72 ~ 2.90 (OVER 2.72V) 0 ~ 0.18 8 PC CAM 8 2.72 ~ 2.90 (OVER 2.72V) 0.425 ~ 0.780 9 Pick Bridge 9 2.72 ~ 2.90 (OVER 2.72V) 0.975 ~ 1.315 10 STORAGE 10 & 11 2.72 ~ 2.90 (OVER 2.72V) 1.553 ~ 1.8936

Fig. 12-1

YES

NO

YES

NO

WAVEFORM DURING MODE SELECTION

2.9V

0V

Troubleshooting

12-4

Samsung Electronics

IS CONNECTION BETWEEN 45-PIN FPC AND CN601 OK

CHECK FPC CONNECTION WITH CN601

IS CONNECTION BETWEEN 45-PIN FPC AND SUB-BOARD OK?

CHECK FPC CONNECTION WITH SUB-BOARD

DO OUTPUT PIN #4

AND #5 OF 45-PIN CONNECTOR ON

SUB-BOARD WORK

NORMALLY

CHECK SIDE CIRCUITS OF KEY FUNCTION ON SUB BOARD

DO INPUT PIN #27 AND

#28 OF IC204 WORK NORMALLY?

CHECK SOLDERING CONDITION OF IC204'S PIN #27 AND #28

UPGRADE PROGRAM

KEY INACTIVE

Fig. 12-2

IC204 PIN #27 IC204 PIN #28

NO Sub BOARD'S 45-PIN Connector PIN #4 Sub BOARD'S 45-PIN Connector PIN #5

Voltage Range [V] Voltage Range [V]

None 2.72 ~ 2.90 (OVER 2.72V) °ÿ DEFAULT 0 ~ 0.18 °ÿ DEFAULT 1 2.72 ~ 2.90 (OVER 2.72V) 2.72 ~ 2.90 (OVER 2.72V) 2 2.72 ~ 2.90 (OVER 2.72V) 2.245 ~ 2.585 3 2.72 ~ 2.90 (OVER 2.72V) 1.757 ~ 2.097 4 2.72 ~ 2.90 (OVER 2.72V) 1.281 ~ 1.621 5 2.72 ~ 2.90 (OVER 2.72V) 0.793 ~ 1.133 6 2.72 ~ 2.90 (OVER 2.72V) 0.317 ~ 0.657 7 2.154 ~ 2.494 0 ~ 0.18 8 0.425 ~ 0.780 0 ~ 0.18 9 1.553 ~ 1.893 0 ~ 0.18 10 0.975 ~ 1.315 0 ~ 0.18

* REFER TO FIG. 12-2

Sub Board

YES

NO

YES

!

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#

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&

*

)

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(

Troubleshooting

12-5

Samsung Electronics

Fig. 12-3

IS VOLTAGE AT C405

OF IC410 5V?

UPGRADE PROGRAM, THEN CHECK POWER BLOCK(DC/DC)

DO OUTPUT PIN #8

AND #9 OF CN103

WORK NORMALLY?

REPAIR/REPLACE ASS’Y POWER

DO INPUT PIN #54 AND #55 OF IC204

WORK NORMALLY?

CHECK SOLDERING CONDITION OF PIN #54 AND #55 OF IC204

IS CONNECTION BETWEEN

FPC AND CN402 OK?

CHECK FPC CONNECTION WITH CN402

IS FPC CONNECTED

TO CN402 OK?

REPLACE FPC

IS FPC CONNECTION TO

CN601 AND SUB-BOARD OK?

CHECK 45-PIN FPC CONNECTION WITH CN601AND SUB-BOARD

DOES BARRIER

WORK NORMALLY?

(1) UPGRADE PROGRAM (2) REPAIR OR REPLACE MAIN BOARD IF BARRIER DOES NOT WORK NORMALLY,

AFTER PROGRAM UPGRADE

EXAMINE LENS

ZOOM INACTIVE

YES

NO

ZOOM STARS ZOOM STOPS

2.9V

NO

0V

ZOOM RECOGNITION

NO

YES

NO