Akai LTC-16R5X3M User manual

LTC16R5X3M
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LTC-16R5X3M
SERVICE MANUAL
Only For Professional Service Personnel Using
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CONTENTS
CONTENTS
1. --------------------------------OPERATION PARTS 2
2. --------------------SYMPTOMS and CORRECTIONS 6
3. --------------------MANI BOARD FAULT JUDGMENT 8
4. -----------------------------SOFTWARE UPGRADE 13
5.19 -----------------
7.SPECIFICATIONS ----------------------------------- 21
6. -----------------------MAIN ELECTRIC PARTS LIST 20
8.22
SOFTWARE DATA'S RESTORATION
ACCESSORIAL CIRCUITR DRAWING and CONFIGURATION DRAWING --
1
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2
OPERATION PARTS
ITEM BUTTON NAME FUNCTION DESCRIPTION
1-VOLUME+Press to increase or decrease the sound level.
STOP STOP for DVD .
Top View of TV Set:
Switch ON the LCD TV when at standby mode or vice versa.
TV/AV Press to select the input source.
STANDBY
Press to bring up the main menu to the screen.
MENU
2
7
6
4
9
PREV/NEXT
PLAY/PAUSE
PREVIOUS/NEXT for DVD.
PLAY/PAUSE .for DVD
3
8
OPEN/CLOSE DVD DISC eject/close.
-CH+Press to scan through channels.To scan quickly channels,press and hold
down either +/- button.
5
1.TV IN
2.HeadPhone OUT
3.PC Audio IN
4.AV-R IN
5.AV-L IN
6.AV CVBS IN
7.S-VIDEO IN
1 2 345678910
8.SCART
9.VGA IN
10.DC IN 12V
11.Lorder that DVD DISC eject/close
12.USB jack
13.MMC/SD/MS socket
11
12 13
Rear View of TV Set
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/
3
12
3
5
4
6
7
8
18
9
11
10
12
14
13
15
16
17
OPERATION PARTS
Remote Control Unit
1.STANDBY
2.AUTO
3.0-9
4.-/- -
5.
6.CH+ or CH-+ -
7.VOL- or VOL+
8.DISPLAY
9.ENTER
10.
Press this butto n to switc h on the TV when in standby mode or to ente r
standby mode
Press to do auto config uratio n dire ctly for PC-RGB.
Number selectio n.
To enter a program number for multipe program channel such as 2-1,etc.
Press to return to th e pre vio usly viewed program.
Press these butto ns to lower or raise th e volu me.
Press to display progra m or channel's info rm atio n.
Confir matio n key
LEFT/RIGHT
11.
12.LCD MENU
13.INPUT
14.P.MODE
15.S.MODE
16.MUTE
17.ASPECT
18.SLEEP
LCD TV Menu enter/e xit .
Press to sycle through the diffrent picture mode.
Press this butto n to select the desire sound mode.
Mute or restore sound
Press to select picture ra tio for screen.
UP/DOWN
Press these buttons to select channels in ascending or
descending order.
/
Press to cycle through the input source to select TV、
AV、S-VIDEO、SCART、PC or DVD.
P r e s s t h e s e buttons t o s e t t h e s l e e p e r timer
f o r t u r n i n g o f f T V .
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4
1
6
3
2
5
4
7
8
TELETEXT OPERATIONS
OPERATION PARTS
1.TEXT
2.HOLD
3.INDEX
4.SIZE
5.REVEAL
6.SUB.PG
7.CH++
8.CH--
Hold on or off fo r curr ent page display.
Request the index page.
Change display size in teletext.
Reveal the teletext in fo rmatio n.
Page up.
Page down.
Switc h on or off th e te lete xt mode.
Sub page.
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5
1
2
5
3
7
6
8
10
11
9
12
14
15
13
16
18
19
44
17
Remote Contrller Unit(DVD INPUT)
1.EJECT
2.TITLE
3.MENU/PBC
4.DVD SETUP
5.
6.
7.AUDIO
8.
9.
10.GOTO
DVD disc eje ct/clo se.
(1). Press to enter to title .
DVD DISC menu/VCD DISC menu
DVD setup en te r /ex it
PLAY/PAUSE
STOP
Press to select audio mode.
Fast reverse
Fast forword
Press to scan program.
(2). Press to switc h between document and file .
11.ANGLE
12.
13.
14.ZOOM
15.SUBTITLE
16.PROGRAM
17.USB/CARD
18.REPEAT
19.AB
Previous
Next
Press to zoom screen size.
Recalls your preferred subtitle .
Press to program order th at you want to play pro gra m.
Press to select these modes such as DVD,USB or CARD.
Repeat
Press to select shoot's angle of playin g program.
It repeat playing between point A that you select fr om pla yin g
program and point B that you select from playing pro gra m.
OPERATION PARTS
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6
Please make these simple checks as indicated (●) on the chart for the respective symptoms and their
possible remedies.
No pictur e, no sound
Poo r sound , pi cture OK
Poo r pictur e, sou nd OK
Weak pictur e
Blurred pi cture
Double image
Lines in pictur e
Distorted pictur e
Weak reception on some channels
Horizon tal bars
Pictur e rol ls vertically
Poo r colou r
No col ou r
Misop eration of Rem ote control
Rem ote con trol unit no op eration
On Screen Displ ay Cont rol outside the screen
Symptoms
Possible Remedies
Try different channel, if OK, probably station trouble
Check aerial connections on back of set
Check aerial for broken wires
Re-orient aerial (if indoor type)
Probably local interference, such as an appliance
Adjust fine tuning control
Adjust brightness control
Adjust contrast control
Check if station is broadcasting colour
Adjust colour control
Check if system is correctly set
Check if on/off switch is "on"
Check batteries in remote control unit
SYMPTOMS and CORRECTIONS
SYMPTOMS and CORRECTIONS for TV SET
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7
CORRECTIONS
Check to make sure that the power connection is correct
NO picture
Make sure the connection between the player and the TV is correct
Make sure that the TV is in good working condition
Check to make sure that the power connection is correct
No sound
Make sure the connections between the player and other devices are correct
Make sur e that the TV and AMP ar e in good worki ng con di tion and prope rly set up
Check that the disc is properly inserted
Fails to play
Fails to respond to
remote control
Picture disturbance
Fail s to work with key s
Clean the disc
Remove obstacles between remote control and unit.
Aim remote control at the sensor on the front panel
Check batteries and replace them if necessary.
Check the disc for dirt and scratches. Clean or replace disc
Shut down the unit, wait ten seconds and restart the unit
Power surges or brown outs or other electrical phenomena. Shut down the
unit, wait ten seconds restart the unit.
Your DVD player is a basic part of your home theater. The technical features on this machine are far
superior to any previous
Audio-visual equipment. This completely new digital technology has compressed the audio visual
effect of cinema into a
12cm-diameter disc, which is the same size as a CD, The Dolby digital out put in particular can provide
a prominent digital surround effect. It is also compatible with existing CD,CD-R and CD-RW(It is not
compatible with some CD-RW discs).
SYMPTOMS and CORRECTIONS
SYMPTOMS
NO POWER
SYMPTOMS and CORRECTIONS for DVD PLAYER
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Check(F1/3A)for 12V
Power supply trouble
MANI BOARD FAULT JUDGMENT
Turn on the power Che ck pow er supp ly IR can't tur n
on TV set
Chang e F1 (3A )Che ck F1
whethe r OK
F1 damaged when
Turn on the TV set
Check power supply net
(U3 ,U 4 )f ol l o w in g F 1
OK
Check the
L E D r e d
Che c k th e powe r
supply and commu-
nicatio n of U13(Flash)
Check power supply and
12C of U11(24C32)
Y
1)Check power and reset signal of U10(CT 622)
2)Check Y1 working normal
Check the IR boa rd
OK
N
N
Y
Y Y
N
8
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MANI BOARD FAULT JUDGMENT
Display trouble
The PIN8 of U32 >8.5 V ?
Or the PIN6 U22>3V?
Picture not in center
PC mode
Picture ditherin g
Check RGB signal
of U10/CT 622E
Check the Hs and VS
Auto ad just
Check the RGB circuit
Color auto adjust
Auto adjust
PC no signal
M i s s color,
deflection color
Check HS/VS
Check the circuit
o f H S /V S
9
OK
Check the inp ut
circu it of si gna l
Check U1 0(CT622E )
1.power supp ly
2.cloc k si gna l
3.reset signa l
4.timing logic of
power
Check the video source
No signal
INPUT
Function trouble
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Function trouble(ATV)
MANI BOARD FAULT JUDGMENT
TV can't search any
Channel or no pic ture
Check the soure of RF
Check power
circu it Q11,L18
Chang e tun er
Check the RF si gnal
Check the 5V on
P I N 7 o f T 1
Check 12C of T1 Pin4/Pin5
Check the si gnal
out of T1 Pin8
Check the circuit
of 12C and U15
N
Y
N
Y
N
Y
N
Y
Check the circuit
of SW1/TDA9885/6
Check the ci rcuit Q14
Chang e to TV
Check the CVBS out of
T DA 9 8 8 5 /6 P i n 1 7
Check the input sig nal
o f C T 6 2 2 E P i n 7 8
Check the software
w h e th e r c o rr e c t
Check the sour ce
s e l c t i n g T V
Upload software
N
Y
N
Y
N
Y
N
Y
OK
10
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Display trouble
MANI BOARD FAULT JUDGMENT
11
Repair th e
circ uit of Q9
Black scre en Exceptio nal screen
Check the BLON Back light is lightin g
Check the VCC
o f p a n e l
Check the line of panel
Soft is corre ct
Check LVDS
signal li ne
Check the timing
o f p o w e r
The panel is correct
R e -we l d i n g
U10(CT622E)
OK
N
Y Y
Y
Y
Change the li ne
Upload software
Change panel
OK
Re-weld in g Pin 188–
Pin213 of U10(CT622E)
N
OK
Channel panel
N
Y
Display trou ble
OK
Y
Upload soft ware
Check the panel
connected rig ht
VCC of panel
i s c o r r e c t
C h e c k t h e
jumper of CN5
Y
Y
N
N
N
N
N
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Audio trouble
MANI BOARD FAULT JUDGMENT
12
No audio
Check the audio source
Turn large the vol ume
Check the spe aker
The audio inp ut is ok
Volume is turn to 0
Voice is muted
Cn26 wi th
audio si gna l
Turn off mute modle
N
Y
N
Y
N
Y
N
N
Check the circuit
o f S T BY \M UT E
Repair the power
supp ly circu it of U1
PIN8 of U19(TDA1517)
i s h i g h l e v e l
Check the power
o f a m p l e
Check the input signal of
U19(TDA 1 517)PIN 1/PIN 9
Check the ci rcuit
of audio inp ut
Check the power and
circuit aroundU16(SC7314S)
N
Y
N
Y
N
OK
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SOFTWARE UPGRADE
ATV SOFTWARE UPGRADE
1.PC setting
1.1.Please run operation system of windows XP,advice
using English windows XP.
1.2.Please open the computer's hardware device manager,
set the Baud Rate of port COM1 and port COM2 to
115200. Please use default setting about other setting
items.
1.3.Open control panel of windows XP,enter view item
of folder option,cancel selecting hidden extension of
known file type.
1.4.Copy CT622_ISP_Tool folder into PC. Cancel all
file's attributes of folder.
1.5.Run CT633ISP.exe,Press Ports and select Com1.
13
1.7.Press Option and Verify,then select Verify ON.
1.6.Press Baud and select 115200.
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SOFTWARE UPGRADE
14
1.8.Press Option and Flash,and select Option Item
as fig,then press OK.
2.Connect PC and TV.
2.1.Turn off the TV.
2.2.Connect update match board into PC and TV main
board’s Cn23 or TV main board’s VGA socket.
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SOFTWARE UPGRADE
15
2.3.Turn on the TV.
3.Update
3.1.If ICO UART Online is UART Offline,Press UART
Offline to change to UART Online.If it can't change
to UART Online,Connection is badness.
3.2.Select Boot Code fils “622P_EN_MX_PM.BIN” by
ICO of Boot Code item.
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SOFTWARE UPGRADE
16
3.3.Select MCU fils “CTBxxx.BIN” by ICO of MCU
fils item.
3.4.Press EnterISP,then press Run,until display finished
on Window of SOFT.
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SOFTWARE UPGRADE
17
3.5.Then press EnterISP again,then Press Auto,Update
start.
3.6.Update finished until it display “program finished”
and “Verify finished” on ISP status.
Warning:Don't turn off TV while Updatetng! And don't
do other opration.If update is discontinuity,you can
continue by pressing Retry.
Note:This software need restoration after update.
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DVD SOFTWARE UPGRADE
SOFTWARE UPGRADE
1.Del all files in USB.
2.Copy update files into USB,the file name must be MTK.BIN.If it isn't this file name,this file name
must be rename to MTK.BIN.
3.Turn on the TV Combo,select working in DVD input,and take out all disc and take out all USB and
take out all CARD.
4.Insert USB with update file,select reading USB.
5.After it read update file,it have prompt on TV Combo,then you must operate according to prompt.
If it is automatically Updatting,please can't do any operation,If it have cue that you press play key to
continue update,please press play button on R/H to update.
6.You can't do any operation while updatting,until TV-Combo restart DVD working screen,update is
finished,then you take out USB.
Warnning:you can't do any operation while updatting,and it can't quit DVD working!If update is
discontinuuty,DVD will not work.
Note:This software need restoration after update.
18
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