Akai CFTD2011 User manual

IMPORTANT INFORMATION
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
The lightning flash with arrowhead symbol, within an equilateral triangle,
is intended to alert the user to the presence of uninsulated "dangerous
voltage
” within the product's enclosure that may be of sufficient magni-
tudetoconstituteariskofelectricshocktopersons.
The exclamation point within a triangle is intended to alert the user to the
presence of important operating and maintenance(servicing)instruction
accomp an ying th e prod uc t.
CFTD2011
LCD TV/DVD
SERVICE MANUAL

CONTENT
Safty Precaution ................................................................................................................................ page 1~ 1
Technical Specifications ..................................................................................................................... page 2~ 2
Trouble Shooting Flow Chart ............................................................................................................... page 3~ 5
Block Diagram .................................................................................................................................... page 6~ 6
WiringDiagram ................................................................................................................................... page 7~ 7
Main Board ........................................................................................................................................ page 8~ 22
Control Board ..................................................................................................................................... page23~25
DVDBoard ......................................................................................................................................... page26~32
Replacement Part List ........................................................................................................................ page33~33
Firmware Upgrade method .................................................................................................................. page34~43
ExplodedDrawing .............................................................................................................................. page44~44

1
SAFETY PRECAUTION
zIn order to prevent you from any possible injury caused by high voltage, please do not touch the inverter directly
while repairing the unit.
zWhile adjusting the unit, be sure to groud connected instruments adn your body to prevent sstatic electricity
destroying the ICs.
Earth ring
(Lead wire)
Pick-up case
Chassis (GND)
E
a
r
t
h
Resistor
1M ~10M
ΩΩ

2
LCD TV section
Screen Size ............................................................................................................................ 20TFT-LCDPanel
Aspect Ration ............................................................................................................................................... 4:3
Contrast Ratio ........................................................................................................................................... 600:1
Brightness ......................................................................................................................................... 500 cd/m2
High color saturation ....................................................................................................................... NTSC 7 5 %
Resolution ......................................................................................................................................... 480I/480P
Pixel Pitch(HXV) ............................................................................................................... 0.2125mm 0.6375mm
Display colors .......................................................................................................................................... 0.26M
ResponseTime(Tr/Tf) ............................................................................................................................... 3/5ms
Viewing Angles Horizontal .................................................................................................................160Degree
Viewing Angles Vertical .....................................................................................................................140Degree
TV Tuning Compatible ......................................................................................................... NTSC 181 Channels
Special Features:
................................................................................................................................................................. MTS
...................................................................................................................................................... Sleep Timer
.................................................................................................................................................... 4H comb filter
........................................................................................................................................................ Deinterlace
............................................................................................................................................................... V-chip
.................................................................................................................................................. Closed Caption
................................................................................................................................ Full function remote control
Input Terminals:
............................................................................................................................................................ Antenna
.................................................................................................................................................................. AV1
......................................................................................................................................................... S-VIDEO1
....................................................................................................................................................... Component
Power Consumption ......................................................................................................................... 90W (MAX)
Power Supply ................................................................................................................... 100~240 VAC at 1.5A
OperationTemperature ....................................................................................................................... 0oC~45
oC
Storage Temperature ............................................................................................................ From -10oCTo60
oC
DVD section
Laser type .......................................................................................... Semiconductor laser, Wavelength 650nm
Signal system ............................................................................................................. PAL625/50, NTSC520/60
Video ouptut level ..................................................................................................................... 1 Vp-p (75 ohm)
Video Y output level .................................................................................................................. 1 Vp-p (75 ohm)
Video C output level ........................................................................................................... 286 m Vp-p (75 ohm)
Horizontal resolution ............................................................................................................................ 480 lines
S/N ratio ................................................................................................................................................... 60 dB
Audio frequency .......................................................................................... DVD (PCM) 20Hz-22kHZ (+/-1.0 dB)
Response ................................................................................................................. CD 20Hz-20kHz (+/-1.0dB)
S/N ratio .................................................................................................................................................... 80dB
Dynamic range ........................................................................................................ DVD (PCM): 85dB; CD:85dB
Audio L/R ..................................................................................................................................... 2V 1kHz 0dB
Distortion ................................................................................................................................................... 0.1%
TECHNICAL SPECIFICATIONS

3
TROUBLE SHOOTING FLOW CHART (1)
TV / AV no picture Check U7,U15
No picture Back to default setting
All Source Chack U7,U15
Chect Panel
All Source Check LVDS wire
Color NG Check U7,U15
Back to default setting
YCBCR Check U15 out/put
Check signal source
All Source Check Front Panel
Video issue Line in Picture
Only one source Check Main Board ( U7,U15 )
Check Main Board
All Source Check Main Board ( U7,U15 )
Noise Check Main Board
TV Check signal source
Select TV source on OSD
Superimposed image All Source Check Main Board ( U7.U15 )

4
TROUBLE SHOOTING FLOW CHART (2)
TV Check or change U7,U18
No Sound Back to default setting
Other Source CheckU18，
check U26,U27 output
Check Main Board and wire connecting
all source
Check Main Board
，wire，U26,U27 output
R or L no sound Check U7
Check Speaker connecting
one port Check U7,U26,U27
Check Speaker connecting
all source Check U7,U26,U27
Audio Issue Noise Check Speaker
one port Check U7,U26,U27
Check signal input source
all source Check U7,U26,U27
Sound low Check U26,U27 power supply
TV check signal source
Back to default setting
Check U7,U26,U27

5
TROUBLE SHOOTING FLOW CHART (3)
Check AC Cord
No Powe
r
Check the wire form Power Supply to Main Boa
r
Power on NG
Check Power Supply
Check Power Supply
No back ligh
t
Check Main Board ( check Q10,Q13 )
Check front panel
Key NG
Check CONTROL Board
No Work
Check CONTROL Board
Remote controller NG
Check Main Board ( U24 )
Check Remote controller
Function issue Invalidity
Check CONTROL Board
Check batter
y
LED NG
Power LED NG CONTROL Board Check Wire
Check Power Supply
Automatic on/off POWER
Check Main Board

6 6
BLOCK DIAGRAM

7 7
WIRING DIAGRAM
SPEAKER
R-CH
INVERTER
POWER
BOARD
DVD BOARD
KEY/IR BOARD
TV
MAIN BOARD
INVERTER
L-CH
CN7 CN6
CN1
FCC Cable to LCD Panel
J1 J3 J2 J5 J11
J12
J7

8 8
MAIN BOARD CIRCUIT (1)
5 5
4 4
3 3
2
2
1 1
D D C C B B A
A

9 9
MAIN BOARD CIRCUIT (2)
5 5
4 4
3 3
2
2
1 1
D D C C B B A
A
TO debug
DVD KEY

10 10
MAIN BOARD CIRCUIT (3)

11 11
MAIN BOARD CIRCUIT (4)
5 5
4 4
3 3
2
2
1 1
D D C C B B A
A

12 12
MAIN BOARD CIRCUIT (5)
5 5
4 4
3 3
2 2
1 1
D D C C B B A
A

13 13
MAIN BOARD CIRCUIT (6)

14 14
MAIN BOARD CIRCUIT (7)
5 5
4 4
3 3
2
2
1 1
D D C C B B A
A

15 15
MAIN BOARD PCB-TOP

16 16
MAIN BOARD PCB-BOTTON

17
MAIN BOARD PARTS LIST
RESISTOR
R107 QCF015030-1010 100 OHM 1/10W 5% 0603
R108 QCF015030-6820 6.8K OHM 1/10W 5% 0603
R109 QCF015030-1010 100 OHM 1/10W 5% 0603
R110 QCF015030-5120 5.1K OHM 1/10W 5% 0603
R111 QCF015030-0000 0 OHM 1/10W 5% 0603
R114 QCF015030-0000 0 OHM 1/10W 5% 0603
R12 QCF015030-1040 100K OHM 1/10W 5% 0603
R120 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R121 QCF015030-1040 100K OHM 1/10W 5% 0603
R122 QCF015030-1030 10K OHM 1/10W 5% 0603
R124 QCF015030-1010 100 OHM 1/10W 5% 0603
R125 QCF015030-2230 22K OHM 1/10W 5% 0603
R127 QCF015030-1010 100 OHM 1/10W 5% 0603
R128 QCF015030-4710 470 OHM 1/10W 5% 0603
R129 QCF015030-2420 2.4K OHM 1/10W 5% 0603
R130 QCF015030-2420 2.4K OHM 1/10W 5% 0603
R131 QCF015030-2420 2.4K OHM 1/10W 5% 0603
R132 QCF015030-4710 470 OHM 1/10W 5% 0603
R133 QCF015030-2420 2.4K OHM 1/10W 5% 0603
R134 QCF015030-2420 2.4K OHM 1/10W 5% 0603
R135 QCF015030-2420 2.4K OHM 1/10W 5% 0603
R136 QCF015030-1030 10K OHM 1/10W 5% 0603
R137 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R14 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R140 QCF015030-1030 10K OHM 1/10W 5% 0603
R141 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R142 QCF015030-1020 1K OHM 1/10W 5% 0603
R143 QCF015030-1020 1K OHM 1/10W 5% 0603
R144 QCF015030-1020 1K OHM 1/10W 5% 0603
R145 QCF015030-2200 22 OHM 1/10W 5% 0603
R146 QCF015030-2200 22 OHM 1/10W 5% 0603
R147 QCF015030-2200 22 OHM 1/10W 5% 0603
R148 QCF015030-2200 22 OHM 1/10W 5% 0603
R149 QCF015030-1040 100K OHM 1/10W 5% 0603
R150 QCF015030-1040 100K OHM 1/10W 5% 0603
R151 QCF015030-1030 10K OHM 1/10W 5% 0603
R152 QCF015030-1030 10K OHM 1/10W 5% 0603
R153 QCF015030-5630 56K OHM 1/10W 5% 0603
R154 QCF015030-1020 1K OHM 1/10W 5% 0603
R155 QCF015030-1030 10K OHM 1/10W 5% 0603
R156 QCF015030-4740 470K OHM 1/10W 5% 0603
R158 QCF015030-1030 10K OHM 1/10W 5% 0603
R159 QCF015030-1040 100K OHM 1/10W 5% 0603
R160 QCF015030-1040 100K OHM 1/10W 5% 0603
R161 QCF015030-1030 10K OHM 1/10W 5% 0603
R162 QCF015030-1030 10K OHM 1/10W 5% 0603
R163 QCF015030-1040 100K OHM 1/10W 5% 0603
R164 QCF015030-1050 1M OHM 1/10W 5% 0603
R165 QCF015030-1030 10K OHM 1/10W 5% 0603
RESISTOR
R166 QCF015030-1030 10K OHM 1/10W 5% 0603
R167 QCF015030-5630 56K OHM 1/10W 5% 0603
R168 QCF015030-1020 1K OHM 1/10W 5% 0603
R169 QCF015030-1030 10K OHM 1/10W 5% 0603
R17 QCF015030-4730 47K OHM 1/10W 5% 0603
R170 QCF015030-4740 470K OHM 1/10W 5% 0603
R172 QCF015030-1030 10K OHM 1/10W 5% 0603
R173 QCF015030-4730 47K OHM 1/10W 5% 0603
R174 QCF015030-1030 10K OHM 1/10W 5% 0603
R175 QCF015030-2220 2.2K OHM 1/10W 5% 0603
R177 QCF015030-1030 10K OHM 1/10W 5% 0603
R178 QCF015030-1030 10K OHM 1/10W 5% 0603
R18 QCF015030-1040 100K OHM 1/10W 5% 0603
R181 QCF015030-2220 2.2K OHM 1/10W 5% 0603
R186 QCF015030-1020 1K OHM 1/10W 5% 0603
R187 QCF015030-1020 1K OHM 1/10W 5% 0603
R188 QCF015030-1040 100K OHM 1/10W 5% 0603
R189 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R190 QCF015030-1020 1K OHM 1/10W 5% 0603
R200 QCF015030-1030 10K OHM 1/10W 5% 0603
R202 QCF015030-2220 2.2K OHM 1/10W 5% 0603
R203 QCF015030-2220 2.2K OHM 1/10W 5% 0603
R204 QCF015030-1000 10 OHM 1/10W 5% 0603
R205 QCF015030-1000 10 OHM 1/10W 5% 0603
R21 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R210 QCF015030-4730 47K OHM 1/10W 5% 0603
R211 QCF015030-1040 100K OHM 1/10W 5% 0603
R212 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R213 QCF015030-4730 47K OHM 1/10W 5% 0603
R215 QCF015030-4730 47K OHM 1/10W 5% 0603
R22 QCF015030-0000 0 OHM 1/10W 5% 0603
R27 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R28 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R30 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R32 QCF015030-1020 1K OHM 1/10W 5% 0603
R33 QCF015030-1030 10K OHM 1/10W 5% 0603
R34 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R35 QCF015030-1020 1K OHM 1/10W 5% 0603
R36 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R37 QCF015030-4700 47 OHM 1/10W 5% 0603
R38 QCF015030-0000 0 OHM 1/10W 5% 0603
R39 QCF015030-1020 1K OHM 1/10W 5% 0603
R40 QCF015030-0000 0 OHM 1/10W 5% 0603
R41 QCF015030-0000 0 OHM 1/10W 5% 0603
R42 QCF015030-0000 0 OHM 1/10W 5% 0603
R43 QCF015030-3320 3.3K OHM 1/10W 5% 0603
R44 QCF015030-3320 3.3K OHM 1/10W 5% 0603
R45 QCF015030-4700 47 OHM 1/10W 5% 0603
R46 QCF015030-2200 22 OHM 1/10W 5% 0603

18
MAIN BOARD PARTS LIST
RESISTOR
R47 QCF015030-2200 22 OHM 1/10W 5% 0603
R48 QCF015030-4730 47K OHM 1/10W 5% 0603
R49 QCF015030-2200 22 OHM 1/10W 5% 0603
R50 QCF015030-2200 22 OHM 1/10W 5% 0603
R500 QCF015030-4700 47 OHM 1/10W 5% 0603
R503 QCF015030-4730 47K OHM 1/10W 5% 0603
R504 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R51 QCF015030-1020 1K OHM 1/10W 5% 0603
R510 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R512 QCF015030-0000 0 OHM 1/10W 5% 0603
R513 QCF015030-0000 0 OHM 1/10W 5% 0603
R516 QCF015030-1820 1.8K OHM 1/10W 5% 0603
R517 QCF015030-1050 1M OHM 1/10W 5% 0603
R519 QCF085020-1010 100 OHM 1/8W 5% 0805
R52 QCF015030-1020 1K OHM 1/10W 5% 0603
R520 QCF015030-2220 2.2K OHM 1/10W 5% 0603
R521 QCF015030-2220 2.2K OHM 1/10W 5% 0603
R522 QCF085020-1010 100 OHM 1/8W 5% 0805
R523 QCF015030-3320 3.3K OHM 1/10W 5% 0603
R524 QCF015030-1040 100K OHM 1/10W 5% 0603
R526 QCF015030-3320 3.3K OHM 1/10W 5% 0603
R527 QCF015030-2220 2.2K OHM 1/10W 5% 0603
R528 QCF015030-2220 2.2K OHM 1/10W 5% 0603
R529 QCF015030-0000 0 OHM 1/10W 5% 0603
R530 QCF015030-0000 0 OHM 1/10W 5% 0603
R531 QCF015030-0000 0 OHM 1/10W 5% 0603
R532 QCF015030-0000 0 OHM 1/10W 5% 0603
R533 QCF015030-1030 10K OHM 1/10W 5% 0603
R534 QCF015030-2220 2.2K OHM 1/10W 5% 0603
R535 QCF011030-2200 220 OHM 1/10W 1% 0603
R536 QCF011030-1200 120 OHM 1/10W 1% 0603
R537 QCF015030-0000 0 OHM 1/10W 5% 0603
R538 QCF015030-0000 0 OHM 1/10W 5% 0603
R539 QCF015030-0000 0 OHM 1/10W 5% 0603
R56 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R57 QCF015030-4710 470 OHM 1/10W 5% 0603
R58 QCF015030-4720 4.7K OHM 1/10W 5% 0603
R59 QCF015030-4730 47K OHM 1/10W 5% 0603
R61 QCF015030-7500 75 OHM 1/10W 5% 0603
R62 QCF015030-7500 75 OHM 1/10W 5% 0603
R64 QCF015030-7500 75 OHM 1/10W 5% 0603
R65 QCF015030-7500 75 OHM 1/10W 5% 0603
R67 QCF015030-7500 75 OHM 1/10W 5% 0603
R68 QCF015030-7500 75 OHM 1/10W 5% 0603
R70 QCF015030-3320 3.3K OHM 1/10W 5% 0603
R71 QCF015030-2200 22 OHM 1/10W 5% 0603
R72 QCF015030-2200 22 OHM 1/10W 5% 0603
R73 QCF015030-2200 22 OHM 1/10W 5% 0603
R74 QCF015030-7500 75 OHM 1/10W 5% 0603
RESISTOR
R75 QCF015030-7500 75 OHM 1/10W 5% 0603
R76 QCF015030-7500 75 OHM 1/10W 5% 0603
R77 QCF015030-7500 75 OHM 1/10W 5% 0603
R78 QCF015030-7500 75 OHM 1/10W 5% 0603
R79 QCF015030-7500 75 OHM 1/10W 5% 0603
R80 QCF015030-7500 75 OHM 1/10W 5% 0603
R81 QCF015030-7500 75 OHM 1/10W 5% 0603
R82 QCF015030-7500 75 OHM 1/10W 5% 0603
R83 QCF015030-1050 1M OHM 1/10W 5% 0603
R84 QCF015030-1010 100 OHM 1/10W 5% 0603
R85 QCF015030-4730 47K OHM 1/10W 5% 0603
R86 QCF015030-1020 1K OHM 1/10W 5% 0603
R87 QCF015030-1050 1M OHM 1/10W 5% 0603
R88 QCF015030-1010 100 OHM 1/10W 5% 0603
R89 QCF015030-4730 47K OHM 1/10W 5% 0603
R9 QCF015030-4730 47K OHM 1/10W 5% 0603
R90 QCF015030-1020 1K OHM 1/10W 5% 0603
RP1 QCA165340-0000 0 OHM 1/16W 5% 0603 8P4R
RP16 QCA165340-4720 4.7K OHM 1/16W 5% 0603
RP2 QCA165340-0000 0 OHM 1/16W 5% 0603 8P4R
RP3 QCA165340-3300 33 OHM 1/16W 5% 0603 8P4
R
RP4 QCA165340-3300 33 OHM 1/16W 5% 0603 8P4
R
RP5 QCA165340-3300 33 OHM 1/16W 5% 0603 8P4
R
RP6 QCA165340-3300 33 OHM 1/16W 5% 0603 8P4
R
RP7 QCA165340-3300 33 OHM 1/16W 5% 0603 8P4
R
RP8 QCA165340-3300 33 OHM 1/16W 5% 0603 8P4
R
RP9 QCA165340-4720 4.7K OHM 1/16W 5% 0603
CAPACITOR
C1 PXL439670-1040 0.1uF 50V +80% -20%
C10 PBE039542-1011 CHIP VER 100 uF 16V 20%
C100 PXL439670-1040 0.1uF 50V +80% -20%
C101 PXL439670-1040 0.1uF 50V +80% -20%
C102 PXL439670-1040 0.1uF 50V +80% -20%
C103 PXL439670-1040 0.1uF 50V +80% -20%
C104 PXL439670-1040 0.1uF 50V +80% -20%
C105 PXL439670-1040 0.1uF 50V +80% -20%
C106 PXL439670-1040 0.1uF 50V +80% -20%
C107 PXL439670-1040 0.1uF 50V +80% -20%
C108 PXL439670-1040 0.1uF 50V +80% -20%
C109 PXL456470-3310 330pF 50V 10%
C11 PXL439670-1040 0.1uF 50V +80% -20%
C110 PXL439670-1040 0.1uF 50V +80% -20%
C111 PXL456470-3310 330pF 50V 10%
C112 PYL439630-1060 10uF 10V +80-20%
C113 PXL439670-1040 0.1uF 50V +80% -20%
C114 PXL439670-1040 0.1uF 50V +80% -20%
C115 PXL439670-1040 0.1uF 50V +80% -20%
C116 PXL439670-1040 0.1uF 50V +80% -20%