Akai LTC-16R5X3M Schematic

LTC16R5X3M

LTC-16R5X3M

SERVICE MANUAL

Only For Professional Service Personnel Using

CONTENTS

CONTENTS

1. --------------------------------OPERATION PARTS

2. --------------------SYMPTOMS and CORRECTIONS

3. --------------------MANI BOARD FAULT JUDGMENT

4. -----------------------------SOFTWARE UPGRADE

5.

SOFTWARE DATA'S RESTORATION

6. -----------------------MAIN ELECTRIC PARTS LIST

-----------------

2

6

8

13

19

20

7.SPECIFICATIONS -----------------------------------

8.

ACCESSORIAL CIRCUITR DRAWING and CONFIGURATION DRAWING

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21

22

1

OPERATION PARTS

Top View of TV Set:

ITEM BUTTON NAME FUNCTION DESCRIPTION

1

2

3

4

5

6

7

8

9

-VOLUME+

PREV/NEXT

PLAY/PAUSE

STOP

OPEN/CLOSE

-CH+

MENU

TV/AV

STANDBY

Rear View of TV Set

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

Press to increase or decrease the sound level.

PREVIOUS/NEXT for DVD.

PLAY/PAUSE .for DVD

STOP for DVD .

DVD DISC eject/close.

Press to scan through channels.To scan quickly channels,press and hold
down either +/- button.

Press to bring up the main menu to the screen.

Press to select the input source.

Switch ON the LCD TV when at standby mode or vice versa.

8. SCART

9. VGA IN

10. DC IN 12V

11.Lorder that DVD DISC eject/ close

12. USB jack

13. MMC/ SD/ MS socket

1 2

12 13

3

5

4

7

6

11

8

9

10

2

OPERATION PARTS

Remote Control Unit

1

2

1. STAN DBY

2. AUTO

3

3. 0- 9

4

5

4. -/- -

7

8

9
10

12

14

13

6

11

18

15
16
17

5.

6. CH+ or CH-+ -

7. VOL- or VOL+

8. DIS PLAY

9. ENTER

10.

/

11.

/

12. LCD MENU

13. IN PUT

Pre ss th is butto n to sw itc h on the TV when in sta ndby mode or to ente r
sta ndby mode

Pre ss to do auto config ura tio n d ire ctly fo r PC-RGB.

Number sele ctio n.

To enter a program number for multipe program channel such as 2- 1, etc.

Pre ss to re tu rn to th e pre vio usly vie wed pro gra m.

Press these buttons to select channels in ascending or
descending order.

Pre ss th ese bu tto ns to lo w er or rais e th e volu me.

Pre ss to display program or channel' s info rm atio n.

Confir matio n ke y

LEFT/ RIG HT

UP/ DOWN

LCD TV Menu ente r/e xit.

Press to cycle through the input source to select TV、
AV、S- VID EO、SC ART、PC or DVD.

14. P. MODE

15. S. MODE

16. MUTE

17. ASPECT

18. SLEEP

Pre ss to sycle thro ugh the diffrent pic tu re mode.

Pre ss th is butto n to se le c t th e d esire sound mode.

Mute or re sto re sou nd

Pre ss to sele ct pic tu re ra tio fo r scre en .

P r e s s t h e s e b u t t o n s t o s e t t h e s l e e p e r t i m e r
f o r t u r n i n g o f f T V .

3

OPERATION PARTS

TELETEXT OPERATIONS

1. TEXT

2. HOLD

3. INDEX

4. SIZ E

7

5. REVEAL

8

6. SUB.PG

7. CH++

8. CH--

1

2

5

4

3

6

Switc h on or off th e tele te xt mode.

Hold on or off fo r current page dis pla y.

Request the in dex page.

Change display size in teletext.

Reveal th e te lete xt in fo rmatio n.

Sub page.

Page up.

Page down.

4

OPERATION PARTS

Remote Contrller Unit( DVD INPUT)

1. EJECT

1

2. TIT LE

3. MENU/ PBC

2

4. DVD SETUP

3

5.

6.

7. AUDIO

44

8.

6
5

9
8

13
12

17
16

7

10
11

14
15

18
19

9.

10. GOTO

11. ANGLE

12.

13.

14. ZOOM

DVD disc eject/ clo se.

(1). Pre ss to ente r to title .
(2). Pre ss to switc h betw een document and file .

DVD DISC menu/VCD DIS C menu

DVD setu p en te r/ ex it

PLAY/ PAU SE

STOP

Pre ss to sele ct aud io mo de.

Fast revers e

Fast forw ord

Pre ss to scan program.

Pre ss to sele ct sho ot's angle of pla yin g pro gra m.

Pre vio us

Next

Pre ss to zoom scre en siz e.

15. SUBTIT LE

16. PROGRAM

17. USB/ CARD

18. REPEAT

19. AB

Recalls your pre ferr ed subtitle .

Pre ss to program order that you want to pla y pro gra m.

Pre ss to sele ct th e se mo des such as DVD, USB or CARD.

Repeat

It re peat p la y in g betw een p oin t A th at you s ele ct fr om playing
pro gra m and po in t B th at y ou se le c t fr o m pla yin g pro gra m.

5

SYMPTOMS and CORRECTIONS

SYMPTOMS and CORRECTIONS for TV SET

Please make these simple checks as indicated (●) on the chart for the respective symptoms and their
possible remedies.

Possible Remedies

Symptoms

No pi cture, no sound

Poo r sou nd , pi ctur e OK

Poo r pi ctur e, sou nd OK

Weak pictur e

Blur red pi cture

Dou bl e image

Line s in pictur e

Distor ted pi ctur e

Weak recept ion on som e cha nn els

Hor izontal ba rs

Pictur e rol ls vertically

Poo r col ou r

No col ou r

Misop eration of Rem ote con trol

Rem ot e con trol un it no operation

On Sc reen Displ ay Cont rol ou tside the screen

T ry differ e nt chann e l, if O K , probab l y statio n trouble

Check ae r ial conn e ctions o n back o f set

Check ae r ial for b roken w i res

Re-orient aerial ( if indoo r type)

Probably local in t erference , such a s an app l iance

Adjust f i ne tunin g control

Adjust b r ightness control

Adjust c o ntrast c o ntrol

Check if station is broad c asting c o lour

Adjust c o lour con t rol

Check if system i s correc t ly set

Check if on/off swi t ch is " o n"

Check ba t teries i n remote control u nit

6

SYMPTOMS and CORRECTIONS

SYMPTOMS and CORRECTIONS for DVD PLAYER

SYMPTOMS

NO POWER

NO picture

No sound

Fails to play

Fails to respond to

remote control

CORRECTIONS

Check to make sure that the power connection is correct

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

Make sure the connections between the player and other devices are correct

Make sur e that the TV and AMP are in good wor ki ng con dition and pr ope rly set up

Check that the disc is properly inserted

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

Picture disturbance

Shut down the unit, wait ten seconds and restart the unit

Fail s to work with key s

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).

Power surges or brown outs or other electrical phenomena. Shut down the
unit, wait ten seconds restart the unit.

7

MANI BOARD FAULT JUDGMENT

Power supply trouble

Check ( F1/ 3 A) f or 12 V

Turn on the p ow er

Cha ng e F1 ( 3A )

N

Che ck p ow er supp ly

N

Che ck F1
whe the r OK

F1 dama ged w he n
Turn on the TV set

Check p owe r supply ne t

( U3 , U 4 ) f ol l o w i n g F1

IR ca n' t tur n
on TV set

Y

Che ck t he
L E D r e d

Y Y

Ch e ck th e po w er
supply and comm u­nic at io n o f U13( Fla sh )

Check p owe r supp ly an d
12 C of U1 1 ( 24C32)

OK

1) Ch eck p ower and re set s ignal of U1 0( CT 622 )

2) Ch eck Y 1 working n orm al

N

Y

Che ck t he IR b oa rd

OK

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