SAMSUNG DIGIMAX U-CA3 Service Manual 02

78

66.. PPrriinncciippaall ttrroouubblleesshhoooottiinngg

11)) DDooeess nn oott PPoowweerr oonn..

Check : Power input

(Battery, Adaptor, etc.)

Check the assembly

condition of various

Connectors!

Current electricity : 0mA

① heck soldering state : Between the Jack PCB and

the Power PCB (4point)
② Check soldering state : Battery contact (3point)
③ Check connection state between the Power PCB

and the Main PCB (J5)

① Check soldering state : Between the Jack PCB and

the Power PCB (4point)

-> Check parts : FB8, FB9, DP1 on Jack PCB.

② Check if the FUSE (FP-1, Q3601000701A) is Short

or Open!

-> Fuse Check (0Ω).

③ Check connection state between the Power PCB

and the Main PCB (J5)
④ Check soldering state : Battery contact (3point)

Power on, Circuit-short

(Overheating)

① Check parts : E6, C5, C6 on Jack PCB.

Current electricity :

280~330mA

Flash memory defect.

-> Upgrade the latest Firmware by I/F box

79 Page

86 Page

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

76 Page

68 Page

How to check the unit parts on the Power board
(Refer to 80~85 page)

Power PCB defect.

79

8

1

1

12

13

24

25

36

3748

12

8024479

13

24

2536

37

48

1

1

1

4

8

5

4

8

5

6

45

14

85

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

Check the connection state.

Check the connection state.

Check the connection state.

TFT LCD

g

PIN

J2

R2

D1

C14

C13

C17

R16

R15

C15

C16

R13

R12

E7

E6

C8

C10

C9

U1

C7

R1

R28

E5

C25

C24

C2

E8

LCD PCB

C1

PIN

C23

E9

R29

R31

R33

R35

R30

R32

R34

R36

L2

L1

J1

e

Jack PCB

C5

BAT

DP1

VCC

C6

C7

GNDP

FB8

E7

ID

J2

E6

FB9

FB2

R3

FB1

FB4

R2

FB3

E1

R4

E3

E2

FB6

FB7

E5

E4

FB5

c

FB2

C121

VJ DET

EAR201

GNDL1

NTSC1

GND1

USB DM

USB AT

USB DP

GND2

R158

R159

Q10

R154

Q6

R173

Q11

MICOM¡

HRESET

R156

R157

C102

R119R121

R118R120

C103

FB16

C104

R122

R134

D3

R131

R125

Q4

R132
R124

R135

Q5

D4

J4

C6

C5

FB7

C9

R28

U9

R29

R24

C118

FB18

R30

FB19

C123

C120

R151

C122

E2

C124

C119 C125

R91

R152

R153C126

C127

U10

TP7TP8

R99

C67

C60

R155

C70

FB21

CLKSEL

VCC3¡H

C64

C105

C145

C65

C146

C66

C63

U6

C97

C62

9 8 6 5 4 3 2 1

R104

FB13

C68

C58

R170

R140

J3

R133

R130

R126

FB9

C88

C86

D2

Q3

a

C19

PIN

C18

C6

E10

R3

C12

C4

C5

C3

L3

E11

C14

C15

C16

FB3

GND

R25

FB8

R19

R57

R61

R62

R23

R21

R26

R38

R59

C53

R96

J5

R27

R40

C55

R166

R95

I2C SC

I2C SD

E5

E4

R98

R100

R103

R102

R107

A

B

C

D

C61

L3

C59

Q9

C80

C78 C81

C87

FB11 FB14

Y3

C134C136

R172

R101 R171

R105

R113

R168

C57

L9

R106

C137

C138

C56

J

L

F

K

E

N

H

G

M

C99

C82

U5

C83

C93

R112

R111

C69

C73

L5L7L6

C79

C72

D1

C90

C74

R115

FB15

FB10

C71

C89

C91

J1

C101

FB12

C95

SPK. MIC. PCB

d

Main PCB

b

a Main(J1) - CCD F PCB

b Main(J3) - Barrel Main F PCB

c Main - Jack(J2 )

d Main(J5) - Power(J1 )

e Main(J4 ) -LCD(J1)

f Power - XE Tube, Main CON.

g LCD(J2) - TFT LCD

Main CON.

Power PCB

+

S401

f

SW401

T GND1

SLP1
SLN1

E406

SPN1

FB403

SPP1

R406

MP1

R404

MN1

R405

R401

C402C401

R402

E402

D

C

E401

S402

A

B

R407

R408

ID HOLE

C310

R317

XGND SVCC

T4

XETN

D301

SEC

FHVP

T3

SW

DCVIN

R254

R255

R252

R250

R251

R253

T2 CCD

Q17

Q15

Q16

D4

U7

R73

R6

R75

C61

BATTERY

D100

BATP1

BATTRZ

Q305

T1 LCD

C19

D14 D10

L15

C31

L6L8

C44

D5

U1

R8

D8

R13

U2

D7

C57

R12 R9

Y1

C5

R15

Q1

C17

R16

D2

D3

D1

C53

L12 L50

C1

C14

FB1

BATTERY

Q6

C54

DC

L13

L14

R74

DC

C110

Q2Q4

L5

R145
R144

C29

C40

R122

L7

R147 R148

C37

C38

C39

L16

R146

U9

C60

R78

PILOT

2003. 09. 27

UC1-POWER

80

1-1) Power PWM IC Checking

※※ ww aarrnn iinn gg

11.. SSuupp ppll yy 33..33VV ffoorr aallll kk iinndd ss ooff ccoo nnttrroo ll ssiigg nnaallss..

22.. WWhheenn cchh eecckkii nngg ppaarrttss oonn PPoowweerr bb ooaarrdd aafftt eerr ddii ssaasssseemmbbllii nngg iitt ff rr oomm MM aaii nn BBoo aarrdd,,
bb ee ssuu rree ttoo ssuupp ppllyy 33..33VV 22AA ff oorr DD CC pp oowweerr..

1. Chcek Point

1) Power PWM IC Channel 1 : 8.5V / 5V / 3V

2) Power PWM IC Channel 2 : 18Vcc_Main

3) Power PWM IC Channel 3 : 3.3Vcc_Main

4) Power PWM IC Channel 4 : 15V / -7.5V_CCD

5) Power PWM IC Channel 5 : 5Vcc

※ If Output. any one output of Power Channels is not correct, all of the five channels will not work.

--

++

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

ppoowweerr ssuuppppllyy :: 33..00VV 22..00AA

81

①① rree mmoovvee RR11

②② II nnppuutt ccoonnttrrooll ssiiggnnaall oonn PPII NN NNOO..3311 ooff UU 33

③③ cchheecckk iiff 33VV ccoo mmee ss oouutt ooff CC 2211

▶▶ PPoowweerr PPWWMM IICC CChhaannnneell--11

TT11__LLCCDD

((QQ226600 11000011 440011AA))

QQ11 PPOOWWEERR BBJJTT

((QQ005500 22000011 330011AA))

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

HHooww ttoo TTEESSTT
①① RReemmoovvee RR11
②② ii nnppuutt cc oonn ttrroo ll ssii ggnnaa ll oonn PPii nn

NNoo..3311 ooff UU 33
③③ CChheecckk iiff 33VV ccoommeess oouutt ffrroomm CC2211
→→ II ff nn oott,, rree ppllaaccee TT11__LLCC DD oorr QQ11

82

②② cchheecckk iiff 11.. 88VV ccoo mmee ss oouutt ffrroomm CC22 77

▶▶ PPoowweerr PPWWMM IICC CChhaannnneell--22

UU33 PPWWMM IICC

((QQ112200 99000011 990011AA))

QQ22 FFEETT TTKKYY

((QQ005500 55000011 880011AA))

HHoo ww tt oo tt eesstt..
①① II nnppuutt ccoonntt rr ooll ssii ggnnaa ll oo nn RR 112255
②② cchheecckk iiff 11.. 88VV ccoo mmee ss oouutt ffrroomm CC22 77
→→ II ff nn oott,, rree ppllaaccee PPoo wweerr PPWWMM IICC oo rr QQ22

①① II nnppuutt cc oonntt rr ooll ssii ggnnaa ll RR1122 55

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

83

▶▶ PPoowweerr PPWWMM IICC CChhaannnneell--33

QQ44 FFEETT TTKKYY

((QQ005500 55000011 880011AA))

HHoo ww tt oo tt eesstt..
①① II nnppuutt ccoonntt rr ooll ssii ggnnaa ll oo nn RR 112255
②② cchheecckk iiff 33.. 33VV ccoo mmee ss oouutt ffrroomm CC33 77
→→ II ff nn oott,, rreepp llaaccee PPWWMM IICC oorr QQ44

①① II nnppuutt cc oonntt rr ooll ssii ggnnaa ll RR1122 55

②② cchheecckk iiff 33.. 33VV ccoo mmee ss oouutt ffrroomm CC33 77

UU33 PPWWMM IICC

((QQ112200 99000011 990011AA))

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

84

②② CChheecckk iiff 11.. 55VV ccoo mmeess oouutt ffrroomm CC443377

▶▶ PPoowweerr PPWWMM IICC CChhaannnneell--44

TT22__LLCCDD

((QQ226600 11000011 330011AA))

HHoo ww tt oo tt eesstt
①① II nnppuutt ccoonntt rr ooll ssii ggnnaa ll oo nn RR 112255
②② cchheecckk iiff 11.. 55VV ccoo mmee ss oouutt ffrroomm CC44 33
→→ II ff nn oott,, rree ppllaaccee PPoo wweerr PPWWMM IICC,,
TT22__LLCCDD oorr QQ55

QQ55 MMOOSS FFEETT

((QQ005500 55000011 990011AA))

UU33 PPWWMM IICC

((QQ112200 99000011 990011AA))

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

①① II nnppuutt cc oonntt rr ooll ssii ggnnaa ll RR1122 55

85

②② cchheecckk iiff 55VV ccoo mmeess oouutt ffrroomm CC55 22,, 5555,,

aa nndd CC5566..

▶▶ PPoowweerr PPWWMM IICC CChhaannnneell--55

QQ66 FFEETT TTKKYY

QQ00 55005500 0011880011AA

HHooww tt oo tteess tt HH ooww ttoo tteess tt
①① II nnppuutt ccoonntt rr ooll ssii ggnnaa ll oo nn RR 112255
②② cchheecckk iiff 55VV ccoommeess oouutt ffrroomm CC5522,, CC 5555,, CC5566
→→ II ff nn oott,, rreepp llaaccee PPWWMM IICC oorr QQ66

UU33 PPWWMM IICC

((QQ112200 99000011 990011AA))

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

①① II nnppuutt cc oonntt rr ooll ssii ggnnaa ll RR1122 55

86

2) Flashing defect.

<<QQ330055 IIGGBB TT CC hheecckk mmeett hhoodd >>

·1,2,3+4 = about 4.7KΩ

·1,2,3+5,6,7,8 and 4+5,6,7,8
= some KΩ ~ some MΩ

Check the XE TUBE.

Check the connection state between

the Trig F PCB and Power PCB.

Check the IGBT

79 Page

아래
부품
상태

aa

bb

cc

ee

ff

aa

bb

cc

dd

aaaa

aa

aa

aa

D301

Check the C307, C308

11

22

33

44

88

77

66

55

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

TT44((QQ2277 004400 0011990011 AA))

TTRRII GG CCOO IILL
. a + c = about 87Ω
. b + c = about 1Ω

YY11((QQ2288 00220000 00880011 AA))

RRTTCC CCRRYYSSTTAALL

FFPP11 ((QQ 33660011 000000770011AA))

CChhii pp FF uussee((00ΩΩ))

DD11 00,,11 44((QQ0066 00110000 551100 11AA))

77 CCOOLL OORR LLEEDD

TT33((QQ2266 001100 0011550011 AA))

TTRRAANNSSFFOORRMMEERR
. c + d = about 0.3Ω
. e + f = about 52Ω
. a+b, a+c, a+e = Open

UU11((aa)):: 88..55 VV OOuu ttppuu tt(( ttoo LLCC DD))
UU22((aa)):: 55..oo VV OOuu ttppuu tt(( ttoo LLCCDD))

QQ22 PPII NN nnoo ..88((aa)) 11..88VV

((ttoo CCCC DD))

QQ44 PPII NN nnoo ..88((aa))

33..33VV ((ttoo MMaaiinn ))

QQ66 PPII NN nnoo ..88((aa)) 55..00VV

((ttoo IIGGBBTT,, AALL ,, FF LL EE DD))

QQ33 0055((QQ1144 00770000 00990011AA)) IIGGBBTT

FFll aasshhii nngg SSii ggnnaa ll ccoonntt rr ooll

Check the belows parts.

R310, R311, R312, R313,

R314, R315, R316, R317,
C309, C310, Q303, Q304,
Q305, T4

79 Page

①

②

③

④

③

87

3) Charging defect.

Check the connection state between

the Trig F PCB and Power PCB.

Check the belows parts.

R307, R308, Q302, R309, T1,

R301, R302, R303, D301,U301

Check the Flash power circuit.

FB301, C301, C302 : 3.0VCC
FB302, C303, C304 : 3.3VCC

Check the charging voltage of

Main CON.(300~320V)

79 Page

CC3300 33
CC3300 11

FFBB 330011 FFBB3300 22

CC33 0022 CC33 0044

UU330011

RR3300 11

RR3300 22

RR3300 99

RR33 0077 RR33 0088

RR3300 33

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

①

②

③

④

③

88

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

4) If Images cam be seen on LCD PANEL but Back Light is not turned on.

MMeeaa ssuu rree tthhee vvoo llttaaggee ooff BBLLPP && BBLLNN oonn bbootthh

ⓐ 9V ~ -11V : replace LCD Panel

ⓑ 0V :

check if D7 in the Power Board is 7.5V

check Main to Power connector (80 Pin).

DDiiggiittaall 88 BBiitt LLiinnee rreessiissttaannccee((RR2299--RR3366))

CClloocckk ccoonnnneeccttiioonn rreessiissttaannccee ((RR33))

OOppeenn // SShhoorrtt // ccoolldd ssoollddeerriinngg cchheecckk ((3333ΩΩ))

check J1 connection

and soldering(Open, Short)

AA ddddii ttiioonn dd eeff eeccttss oonn LLCC DD PPAARR ::

LCD becomes too bright while high current flows.

-> LCD F PCB connect defect (or F PCB CRACK)
LCD DRIVER IC SMT defect

89

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

5) In case LCD becomes all white.

check the connection and

soldering of J1 (Open, Short)

measure L1(3V), L2(5V) voltage.

If images cannot be seen after TV out,
In case LCD becomes all white and
Booting is not possible.
⇒ replace DSP Chip or Main Board

AA ddddiitt iioonnaall ddee ffeecctt ss oonn LLCC DD PPCCBB ::
When Keys don't work.

-> check the condition of LCD F PCB connection and
F PCB PATTERN CRACK,

Check if KEY PAD and KEY PATTERN of LCD PCB is
positioned on the right CENTER,
Check if there's any dirt on KEY PATTERN of LCD PCB.

90

6) AUDIO Part

- Check if Audio is turned on from Menu.

- Be careful not to damage while soldering MIC & SPEAKER

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

Check the condition of J1 connector’s

connection or soldering

(Short or Open)

--UU4400 11 AAUUDDIIOO CCOO DDEECC ((QQ338800 11000033 550011AA))
Check if PIN No.5 is High while using Audio.
When it is Low, check the connection with MICOM.

--UU11 22((QQ1122 0033000022 220011AA)) RR EEGGUULLAATT OORR
check PIN no.5 : 3.3V

Supply power to Audio circuit.

91

7) ZOOM defect.

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

II ff ll eennss iiss nn oott ww oorrkkii nngg pp rr ooppeerrllyy..

21 of J3 is 25Ω±5Ω, zoom motor is OK..

WWhheenn zzoooomm mmoo vveess ttoo tthhee eenndd

ooff TT// WW ppoo ssiitt iioo nn..

- Check the Q4, D3

- R131(300Ω), R132(18KΩ)

WWhh eenn FF OOCC UUSS--MM iiss nnoott
wwoorrkkii nngg pprroo ppeerrll yy ..

- Check the Q5, D4

WWhh eenn ppoowweerr oonn,, iiff iitt
mmoovveess ttoo tthh ee eenndd ww iitthh oouu tt
sstt oopppp iinn gg aatt tthhee wwoo ddee
ppoo ss iitt ii oonn ..

- Check the Q3, D2

92

1. Remove the 1 screw at back cover side. 2. Remove the 4 screws at bottom side.

3. Remove the 4 screws at side. 4. Remove the back cover.

5. Remove the LCD EXIT F PCB from connector.
Remove the back cover ass’y.

77.. DDiissaasssseemmbbllee tthhee ccaammeerraa

ⅥⅥ.. TT RR OOUUBBLL EESS HH OOOO TTII NN GG

93

6. Remove the front cover. 7. Besure to bleed the capacitor by the discharge

resistor.

8. Remove the electricity sheet. 9. Disconnect the CCD F PCB from the MAIN F

PCB.

10. Remove the 2 screws and take off the 11. Remove the OLPF.

CCD plate.

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

94

12. Don’t leave fingerprint on OLPF. 13. Remove the finder holder.

(fingerprint and substance matters)

14. Remove the 3 screws. 15. Remove the barrel ass’y.

16. Remove the one screw and connector 17. Remove the one screw and connector.

than resoldering 3 points.

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

95

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

18. Remove the one screw and resoldering the 19. Resoldering the battery contacts.(3 points)

F PCB than remove the Main PCB.

20. Resoldering the power PCB and reflector. 21. Remove the power PCB.

22. Remove the 5 screws. 23. Remove the lead wires.

96

24. Remove the TFT LCD. 25. Remove the 3 screws.

26. Remove the LCD PCB.

ⅥⅥ .. TT RR OOUU BBLL EESS HH OOOO TTII NN GG

97

1. Remove the finder holder. 2. Remove the one screw.

3. Disconnect the F PCB by iron. 4. Remove the 3 screws.

5. Remove the lens base. 6. LENS BASE ASS’Y.

88.. DDiissaasssseemmbbllee tthhee bbaarrrreell

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

98

7. Remove the outer guide barrel. 8. Remove the outer cam barrel.

9. Remove the cam barrel. 10. Remove the zoomring.

11. Remove the 2nd lens ass’y. 12. 2nd LENS ASS’Y.

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

99

1. Assemble the 2nd lens barrel ass’y in the the zoomring.
Coincide the groove of 2nd lens barrel ass’y with the groove of zoomring.

2. Assemble the zoomring ass’y in the cam barrel.

Coincide the boss “a”and “b”of zoomring ass'y with “a”and “b”of cam barrel each other.

3. Assemble the cam barrel ass’y in the outer cam barrel.
Exact position after assembly is that the sutter F PCB is located on the boss of out cam barrel
together.

88.. AAsssseemmbbllee tthhee bbaarrrreell

aa

aa

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG

A

B

a

b

100

6. Put the assembled OUT CAM BARREL ASS'Y in the OUT BARREL.
The boss of OUT CAM BARREL ASS'Y should be in line with the starting point of the screw thread
on the OUT GUIDE BARREL.
And Put the SHUTTER F PCB on the reflecting plate of PHOTO REFLECTOR.

7. Put the assembled OUT GUIDE BARREL ASS'Y and LENS BASE ASS'Y together.
The SHUTTER F PCB should be positioned in line with the slot for F PCB.

8. Finished.

ⅥⅥ.. TT RR OOUUBBLL EESS HHOOOO TTIINN GG