FinePix F440 TROUBLESHOOTING GUIDE
SAFETY CHECK-OUT
After correcting the original problem, perform the following
safety check before return the product to the customer.
1. Check the area of your repair for unsoldered or
poorly soldered connections. Check the entire
board surface for solder splasher and bridges.
2. Check the interboard wiring to ensure that no
wires are “pinched” or contact high-wattage
resistors.
3. Look for unauthorized replacement parts,
particularly transistors, that were installed during
a previous repair. Point them out to the customer
and recommend their replacement.
4. Look for parts which, though functioning, show
obvious signs of deterioration. Point them out to
the customer and recommend their replacement.
5. Check the B + voltage to see it is at the values
specified.
6. Make leakage - current measurements to
determine that exposed parts are acceptably
insulated from the supply circuit before returning
the product to the customer.
7.
2.5A 125V
2.5A 125V
8.
RISK OF FIREREPLACE FUSE
AS MARKED
WARNING!
HIGH VOLTAGE
CAUTION: FOR CONTINUED
PROTECTION AGAINST FIRE
HAZARD, REPLACE ONLY
WITH SAME TYPE 2.5
AMPERES 125V FUSE.
ATTENTION: AFIN
D'ASSURER UNE
PROTECTION PERMANENTE
CONTRE LES RISQUES
D'INCENDIE, REMPLACER
UNIQUEMENT PAR UN
FUSIBLE DE MEME, TYPE 2.5
AMPERES, 125 VOLTS.
WARNING:
TO REDUCE THE ELECTRIC
SHOCK, BE CAREFUL TO
TOUCH THE PARTS.
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FinePix F440 TROUBLESHOOTING GUIDE
TABLE CONTENTS
1. Image and trace ................................................................................................................................4
1-1. Live image and photographed image completely black .............................................................................................. 4
1-2. Live image and photographed image disrupted ......................................................................................................... 4
1-3. Live image and photographed image disrupted ......................................................................................................... 5
1-4. No image.................................................................................................................................................................... 6
1-5. Live image and photographed image completely black .............................................................................................. 6
2. LCD ....................................................................................................................................................7
2-1. LCD image defect (no image formed) ........................................................................................................................ 7
2-2. LCD image defect (Completely white) ........................................................................................................................ 7
2-3. LCD image defect (Completely white) ........................................................................................................................ 8
2-4. LCD image defect (Completely white) ........................................................................................................................ 8
2-5. LCD image defect (Horizontal white lines) ................................................................................................................. 9
2-6. Missing LCD pixels..................................................................................................................................................... 9
2-7. No image on the LCD (lower third white).................................................................................................................. 10
2-8. LCD split................................................................................................................................................................... 10
3. Power............................................................................................................................................... 11
3-1. Warning tone sounds and the power fails ................................................................................................................ 11
3-2. Power cannot be turned off (occasional) .................................................................................................................. 11
3-3. No power.................................................................................................................................................................. 12
3-4. No power.................................................................................................................................................................. 12
3-5. No power.................................................................................................................................................................. 12
3-6. No power.................................................................................................................................................................. 13
3-7. No power (Both AC adapter and battery) ................................................................................................................. 13
4. Strobe ..............................................................................................................................................14
4-1. Orange LED continues to flash when the camera is turned on in CAM mode .......................................................... 14
4-2. Flash does not fire.................................................................................................................................................... 14
4-3. Flash does not fire.................................................................................................................................................... 14
5. Exterior............................................................................................................................................ 15
5-1. Battery cover will not open ....................................................................................................................................... 15
5-2. R panel coating peeling off ....................................................................................................................................... 15
5-3. Battery lock hook dislodged ..................................................................................................................................... 16
5-4. Release button dislodged ......................................................................................................................................... 16
6. Lens .................................................................................................................................................17
6-1. Live image completely black .................................................................................................................................... 17
6-2. The camera will not focus......................................................................................................................................... 17
6-3. Zooming error occurs ............................................................................................................................................... 17
6-4. Lens fails to retract ................................................................................................................................................... 17
6-5. Lens fails to retract ................................................................................................................................................... 17
6-6. Horizontal lines on photographed images with white flaring ..................................................................................... 18
6-7. Horizontal lines on photographed images with white flaring ..................................................................................... 18
6-8. Lens barrier open/close defect (fails to fully close)................................................................................................... 19
6-9. Lens barrier open/close defect (fails to fully close)................................................................................................... 19
6-10. Lens barrier open/close defect (Fails to fully open) .................................................................................................. 20
6-11. Lens barrier open/close defect (Stays open) ............................................................................................................ 20
6-12. Lens barrier open/close defect (fails to fully close)................................................................................................... 20
6-13. Lens bent ................................................................................................................................................................. 21
6-14. Lens fails to retract ................................................................................................................................................... 21
7. Operation ........................................................................................................................................22
7-1. Control buttons do not work (UP, DOWN, LEFT and RIGHT) .................................................................................. 22
7-2. Zoom and Left/Right buttons do not work................................................................................................................. 22
8. Other................................................................................................................................................ 23
8-1. No sound.................................................................................................................................................................. 23
8-2. Does not turn on....................................................................................................................................................... 23
3
FinePix F440 TROUBLESHOOTING GUIDE
1. Image and trace
1-1. Live image and photographed image completely black
Fault details:
Analysis results:
Repair details:
Resolder the CCD FPC
Live image and photographed image completely black.
Pressing on the MAIN PWB sometimes produces a normal image. This fault is due to
der lifting on pin 22 and 24 in CN101 (the CCD FPC connector). Resoldering remedies
sol
the problem.
are no visible signs of impacts on the outer casing. The cause is presumed to be
There
ess that was applied to the connector during assembly, rupturing the solder and leading
str
to
subsequent breakage.
CN101 24, 22PIN
1-2. Live image and photographed image disrupted
Fault details:
Analysis results:
Live image and photographed image disrupted.
Light knocking sometimes produces a normal image. Internal disassembly and checking
ed that CN101 (the CCD FPC connector) was improperly connected (on an angle) to
reveal
MAIN PWB CN151 and defective connections were causing the above symptoms. We
the
confirmed that the fault did not recur once the parts were reconnected.
There
are no visible signs of impacts on the outer casing. It is unclear whether the fault
was caused by incomplete connection during assembly or something that occurred
bsequently. One end of the CCD FPC cushion (BB18414-100) was displaced and was
su
protrudi
ng from its mount (the work instructions specify no protrusion).
Protruding Cushion
Repair details:
CN101 adjustment
4
Side view of the
CN101
FinePix F440 TROUBLESHOOTING GUIDE
1-3. Live image and photographed image disrupted
Fault details:
Analysis results:
Live image and photographed image disrupted.
Light knocking sometimes produces a normal image. Internal disassembly and checking
revealed that CN101 (the CCD FPC connector) was improperly connected (on an angle) to
the MAIN PWB CN151 and defective connections were causing the above symptoms. We
confirmed that the fault did not recur once the parts were reconnected.
There is an impact mark on the lower-right side of the outer casing and the cabinet seam
is skewed, indicating that the connector was dislodged by an impact of some kind.
Repair details:
Adjust CN101 and replace the cabinet
Impact mark and
skewed seam
5
1-4. No image
FinePix F440 TROUBLESHOOTING GUIDE
Fault details:
Analysis results:
No image (Live image and photographed image completely black).
Light knocking sometimes produces a normal image. Internal disassembly and checking
reveal
ed that CN101 (the CCD FPC connector) was improperly connected (on an angle) to
MAIN PWB CN151 and defective connections were causing the above symptoms. We
the
confirmed that the fault did not recur once the parts were reconnected.
are no visible signs of impacts on the outer casing. It is unclear whether the fault
There
was caused by incomplete connection during assembly or something that occurred
subsequently.
Repair details:
CN101 adjustment
1-5. Live image and photographed image completely black
Fault details:
Analysis results:
Live image and photographed image completely black.
Internal disassembly and checking revealed that CN101 (the CCD FPC connector) was
nnected from the MAIN PWB CN151 and defective connections were causing the
disco
symptoms. We confirmed that the fault did not recur once the parts were
above
nected.
recon
are no visible signs of impacts on the outer casing. It is unclear whether the fault
There
was caused by incomplete connection during assembly or something that occurred
subsequently.
Repair details:
CN101 adjustment
6
FinePix F440 TROUBLESHOOTING GUIDE
2. LCD
2-1. LCD image defect (no image formed)
Fault details:
Analysis results:
LCD image defect (No image is formed and pressing down on the outer casing changes
symptoms).
the
The connection problems are due to incomplete flexible cable locking on MAIN PWB
CN501
pro
(the flexible connector for the LCD). We confirmed that reconnecting the cable
duced a normal image.
Repair details:
CN501 adjustment
2-2. LCD image defect (Completely white)
Fault details:
Analysis results:
LCD image defect (Completely white).
The connection problems are due to incomplete flexible cable locking on MAIN PWB
CN501
pro
(the flexible connector for the LCD). We confirmed that reconnecting the cable
duced a normal image.
Repair details:
Re-insert the LCD flexible cable
7
2-3. LCD image defect (Completely white)
FinePix F440 TROUBLESHOOTING GUIDE
Fault details:
Analysis results:
Repair details:
Replace the LCD CONST
No image on the LCD (completely white with faint horizontal lines).
Replacing the LCD CONST produces a normal image. Caused by LCD CONST
com
ponent defects.
2-4. LCD image defect (Completely white)
Fault details:
Analysis results:
LCD image defect (Completely white. Remedied by light knocking.).
Pressing on the LCD flexible cable produces a normal image. Caused by broken wiring in
on where the LCD flexible cable is folded over at the LCD panel connection.
locati
Rep
lacing the LCD CONST remedies the problem.
Repair details:
Replace the LCD CONST
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