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XL-DV50H

2 – 3

When this test mode is obtained, the following display lights for one
second.

Set the current time and timer time according to the following proce-
dure to reproduce the timer.

1. Set the current time to 1:00, the timer to ON time 1:05, the function

to DVD/CD, and volume to STEP 12, respectively. One minute is
counted as one second, and the timer is reproduced. The fade-in
(when playback is started) is executed at a rate of one step for 1
sec. After completion of fade-in, the fade-out is executed at a rate
of one step for 1 sec (WAIT 1 sec inserted).

After completion of fade-out, the power is turned off (after WAIT 1
sec), and the mode is shifted to the standby.

The display during operation is the same as that of ordinary timer
operation.

When the FL test mode is obtained, all the FL segments are lighted.
Then pressing the "PLAY" button switches display as below.

When the test mode is obtained, the following is displayed.

(STAND-BY AND DEMO OFF STATUS)

This test mode is intended to check whether all the main unit buttons
can be detected. Accordingly, in this test mode, it is checked whether
the "ON/STAND BY" button was pressed after all the buttons shown
below were pressed. If the result is OK, OK is displayed. If any one of
keys was not pressed, an error is displayed. In both cases of OK termi-
nation or error termination, the mode is shifted to the standby mode if
the "ON/STAND BY" button is pressed subsequently.

All models using this type of microcomputer are not always provided
with the same buttons. Since the buttons used are different depending
on models, types of buttons to be used are determined by whether
SURROUND, and an electric lid are available at the initial setting by
MODEL port.

The order of buttons to be pressed is not determined. Accordingly, it is
checked whether all buttons have been pressed.

1. PU-IN buttons: REW/PRESET DOWN + STOP

Since this model is provided with SURROUND (HAVE OR NOT),
and electric DVD/CD lid, the following 10 buttons are detected as
all buttons.

PLAY, X-BASS/DEMO, FUNCTION, VOLUME UP/DOWN, MEM-
ORY/SET, REW, FF, STOP, DVD/CD-OPEN/CLOSE

The OK/ERROR display of test result is as follows.

————–

Lighting of all segments

Lighting of odd segments

Lighting of even segments

__________

XL-DV50H

2 – 4

OPEN/CLOSE & 3 DISC CHANGER aging test.

DISPLAY:

FUNCTION:

Enter the TEST MODE 8, MCU control the 3 DISC CHANGER OPEN/
CLOSE. After open finished, tray rotate 1 circle (360 degree). Then
close, After close finished, tray rotate 1 circle (360 degree) again.

Request:

Every period include 4 operation. Below is TIMING:

Enter test mode

CHANGER

Find the disc 1 position

open

delay 3S after open finish

rotate 1 circle

close

delay 3S after close finish

rotate 1 circle

XL-DV50H

3 – 1

Audio

XL-DV50H

Service Manual

XLDV50H

Market

E

 

Perform steps 1 to 7 of the disassembly method to remove the DVD
Changer unit.(see page 3-2,3-3)

1. Rotate the gear cam until the arm switch C becomes the position of

the Figure 1.

2. Pull the drawer to the front like the Figure 2.

And the DVD/CD disc on the carriage is taken out.

DVD Changer
Unit

Gear cam

Arm switch C

DVD Changer
Unit

DVD/CD Disc

Carriage

Drawer

XL-DV50H

3 – 2

After removing the connector for the optical pickup from the connector,
wrap the conductive aluminium foil around the front end of the connec-
tor so as to protect the optical pickup from electrostatic damage.

Caution on Disassembly
Follow the below-mentioned notes when disassembling the unit and 
reassembling it, to keep it safe and ensure excellent performance:
1) Be sure to remove the power supply plug from the wall outlet 

before starting to disassemble the unit.

2) Take off nylon bands or wire holders where they need to be 

removed when disassembling the unit. After servicing the unit, 
be sure to rearrange the leads where they were before disas-
sembling.

3) Take sufficient care on static electricity of integrated circuits and 

other circuits when servicing.

1

Top Cabinet

1. Screw.........................(A1) x 5

1

2

Side Panel 

1. Screw.........................(B1) x 8

1

3

Rear Panel/Main 
PWB

1. Screw........................(C1) x 8
2. Socket.......................(C2) x 2

2

4

Tuner PWB

1. Screw........................(D1) x 3
2. Socket.......................(D2) x 3

2

5

Main PWB

1. Screw.........................(E1) x 7
2. Socket.......................(E2) x 8

3

6

Transformer

1. Screw.........................(F1) x 4

4

7

Front Panel/DVD 
Tray Cover

1. Screw........................(G1) x 2
2. Flat cable..................(G2) x 1
3. Socket.......................(G3) x 1
4. DVD Tray cover.........(G4) x 1

4

5

8

Chassis

2. Screw........................(H1) x 6

6

9

DVD PWB
(Note 1)

1. Flat cable...................(J1) x 1
2. Socket........................(J2) x 1
3. Screw.........................(J3) x 3
4. Screw.........................(J4) x 4

7

10

DVD Changer Unit  1. Screw.........................(K1) x 6

7

11

DVD Mechanism

1. Screw.........................(L1) x 4

7

12

Display PWB

1. Knob.........................(M1) x 1
2. Screw......................(M2) x 10

8

13

Headphones PWB

1. Screw........................(N1) x 1

8

Top Cabinet

(A1) x2
ø3x8mm

(A1) x2
ø3x8mm

(B1) x2
ø3x8mm

(B1) x4
ø3x8mm

(B1) x2
ø3x8mm

(A1) x1
ø3x8mm

Top Cabinet

Side Panel

(Left)

Side Panel

(Right)

Rear
Panel

(C1) x7

ø3x8mm

(D1) x3

ø3x8mm

(D2) x3

(C1) x1

ø3x10mm

(C2) x1

Rear
Panel

(C2) x1

Turner PWB

Main PWB

Video Terminal

PWB

(E1) x4

ø3x10mm

(E1) x1

ø3x10mm

(E1) x2

ø3x10mm

(E2) x3

(E2) x1

(E2) x1

Main PWB

(E2) x3

Front Panel