Dynex DX-19LD150A11, DX-22LD150A11 Schematic

Dynex

Dynex

DX-19LD150A11

DX-19LD150A11

DX-22LD150A11

DX-22LD150A11

LCD TV/DVD Combo

LCD TV/DVD Combo

Service Manual

COPYRIGHT

Dynex DX-19LD150A11 / DX-22LD150A11 LCD TV/DVD combo Service Manual
Original issue: May 2010

Contents

1. Product safety servicing guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Important safety notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Graphic symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Service information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Implosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2. TV components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Side controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Back connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3. Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4. Calibration and adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

VGA ADC calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

YPbPr ADC calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6. Exploded diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

DX-19LD150A11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

DX-22LD150A11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7. Replacement parts list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

DX-19LD150A11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

DX-22LD150A11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8. System disassembly procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

DX-19LD150A11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

DX-22LD150A11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

9. Power schematic diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10. System board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Top side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Bottom side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

11. Troubleshooting guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

12. Factory reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual 3

1. Product safety servicing guidelines

Important safety notices

This manual was prepared for use only by properly trained audio-visual service
technicians.

When servicing this product, under no circumstances should the original design
be modified or altered. All components should be replaced only with types
identical to those in the original circuit and their physical location, wiring and lead
dress must conform to original layout upon completion of repairs.

Special compon ent s are also used to prevent electric shock, me chanical and fire
hazard. These components are indicated by the graphic included in their
component designators and are required to maintain safe performance.

Circuit diagrams may occasionally differ from the actual circuit used. This way,
implementation of the latest safety and performance improvement changes into
the set is not delayed until the new service literature is printed.

CAUTION • Do not attempt to modify this product in any way.

• Never perform customized installations without manufacturer’s approval.

• Unauthorized modifications will not only void the warranty, but may lead to
property damage or user injury. If the power supply and main board are broken,
please contact with manufacturer.

Service work should be performed only after you are thoroughly familiar with
these safety check and servicing guidelines.

Graphic symbol

The exclamation point within an equilateral triangle is intended to alert the service
personnel to important safety information in the service literature.

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert
the service personnel to the presence of non-insulated dangerous voltage that may be of
sufficient magnitude to constitute a risk of electric shock.

CAUTION: For continued protection against risk of fire, replace all fuses with the same
type and rating as marked near each fuse.

Service information

While servicing, use an isolation transformer for protection from Ac line shock.
After the original service problem has been corrected, make a check of the
following:

1. Be sure that all components are positioned to avoid a possibility of adjacent
component shorts. This is especially important on items transported to and
from the repair shop.

2. Verify that all protective devices such as insulators, barriers, covers shields,
strain reliefs, power supply cords, and other hardware have been reinstalled
per the original design. Be sure that the safety purpose of the polarized line
plug has not been defeated.

4 Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual

3. Soldering must be inspected to discover possible cold solder joints, solder
splashes, or sharp solder points. Be certain to remove all loose foreign
particles.

4. Check for physical evidence of damage or deterioration to parts and
components, for frayed leads o damaged insulation (including the AC cord),
and replace if necessary.

5. No lead or component should touch a receiving tube or a resistor rated a t 1W
or more. Lead tension around protruding metal surfaces must be avoided.

6. After reassembly of the set, always perform an AC leakage test on all
exposed metallic parts of the cabinet (the channel selector knobs, antenna
terminals, handle and screws) to be sure that set is safe to operate without
danger of electrical shock. DO NOT USE A LINE ISOLATION
TRANSFORMER DURING THIS TEST. Use an AC voltmeter having 5000
ohms per volt or more sensitivity in the following manner:

a. Connect a 1500 ohm, 10 watt resistor, paralleled by a 0.15 µF 150V AC

type capacitor between a known good earth ground (water pipe, conduit,
etc.) and the exposed metallic parts, one at a time.

b. Measure the AC voltage across the combination of 1500 ohm resistor

and 0.15 µF capacitor.

c. Reverse the AC plug by using a non-polarized adaptor and repeat AC

voltage measurements for each exposed metallic part.
Voltage measured must not exceed 0.75 volts RMS. This corresponds to

0.5 milliamp AC. Any value exceeding this limit constitutes a potential
shock hazard and must be corrected immediately.

Implosion

All direct view picture tubes are equipped with an integral implosion protection
system; take care to avoid damage during installation. Use only the
recommended factory replacement tubes.

Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual 5

2. TV components

Side controls

#

1

2
3

4

5

6
7

8

9

Item Descriptions

Disc slot
MENU Press to open the on-screen TV menu.

EJECT button Press to eject the disc in the disc slot.

STOP / CH button

 PLAY / CH button
VOL- Press to decrease the volume.

VOL+ Press to increase the volume.
INPUT

(Power) button Press to turn your TV/DVD combo on or off (standby mode).

Insert a disc (DVD or CD) into this slot to change mode and
begin playback.

In DVD mode, press to stop playback.
In TV mode, press to change channels.

In DVD mode, press to begin or resume playback.
In TV mode, press to change channels.

Press to select the AV signal input. You can select TV, A/V,
Component, DVD, HDMI1, HDMI2, VGA, or USB.

6 Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual

Back connectors

QD0EWJ

Q

C

Q

S

#

1
2

3

4

5

6

7

8

9

10

11

Item Descriptions

AC INPUT Connect the power cord to this jack.
ANT/CABLE IN jack Connect an antenna, cable TV, or a satellite box to this jack.
COMPONENT IN (Y, Pb,

r) jack

P
VIDEO IN (S-Video and

Video) jacks

Connect a component video device to these jacks.
Connect the video signal from an AV device to one of these

jacks.

VGA jack Connect the video signal from a computer to this jack.
PC/DVI AUDIO IN jack

Connect the audio signal from a computer or a DVI device to
this jack.

Connect an HDMI device, such as a cable box or DVD player,

HDMI1/HDMI2 jacks

COMPONENT/S-VIDEO/
AV IN (L/R Audio) jacks

AUDIO L/R OUT jacks

SPDIF OUT jack

to this jack. An HDMI cable carries both video and audio, so
you do not

need to make an audio connection.

Connect the audio signals from a component, S-Video, or

composite device to

these jacks.

Connect an analog sound system, such as an analog audio
amplifier, to these jacks.

Connect a digital sound system, such as a digital audio
amplifier, to this jack.

PHONE OUT jack Connect a headphone to this jack.

12

USB IN Plug a USB device, such as a flashdrive, into this jack.

Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual 7

3. Specifications

Item Description

Models DX-19LD150A11 / DX-22LD150A11
LCD Panel 19 or 22-inch active matrix full high definition

Resolution 1366 x 768
Color 6 bit with FRC/ 16.7 M
Viewing angle 170° horizontal - 160° vertical
Contrast ratio 1000:1
Brightness (typical) 250 nits
Response time 5.0 ms

TFT

Physical
specifications

TV Standard NTSC and ATSC

DX-19LD150A11 Dimensions (W × D × H)

With stand:

18.5 × 7.19 × 14.37 in
(470 × 182.5 × 365 mm)
Without stand:

18.5 × 2.87 × 12.74 in
(470 × 73 × 323.5 mm)
Weight
With stand: 9.48 lb (4.3 kg)
Without stand: 8.82 lb (4.0 kg)

DX-22LD150A11 Dimensions (W × D × H)

With stand:

21.18 × 7.24 × 15.63 in
(538 × 184 × 397 mm)
Without stand:

21.18 × 2.3 × 14.53 in
(538 × 71 × 369 mm)
Weight
With stand: 10.8 lb (4.9 kg)
Without stand: 10.14 lb (4.6 kg)

Tuning system Electronic tuning system
Frequency range VHF and UHF
CATV 135 channel, QAM channels
Compatibility 480i, 480p, 720p, 1080i

DVD player Disc compatibility 12 cm Digital Audio CD

CD-R
CD-RW
12 cm DVD-Video
DVD-R
DVD-RW
DVD+R
DVD+RW
DVD-R DL Dual Layer
DVD-RW Dual Layer
DVD+R Dual Layer
DVD+RW Dual Layer

8 Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual

Item Description

USB Compliance USB 2.0

Device compatibility USB flash drive

Power Input voltage DX-19LD150A11 - 120 VAC, 0.6 A

DX-22LD150A11 - 120 VAC, 0.88A

Consumption DX-19LD150A11 - <32.4 W

DX-22LD150A11 - <42.2 W
Off - <1 W

Speaker output 3W (two channels)
Terminals Standard AV Video, audio L/R

S-Video S-Video, audio L/R
Component Y, Pb, Pr audio L/R
HDMI 1 and 2 HDMI IN
VGA and VGA/DVI AUDIO INVGA and audio input

Phone jack Audio out (headphone)
Digital audio SPDIF output
Antenna F type

Image processor Broadcom Xilleon™ X143
Operating

conditions

Temperature 15°C to 40°C (humidity <75%)
Humidity 10% to 90% non-condensing

Atmospheric pressure 0 to 2000 m

(Ta <35%)

Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual 9

4. Calibration and adjustment

VGA ADC calibration

1. Turn on the TV/DVD combo.

2. Set the input source to VGA.

3. Select the calibration pattern.

• Set pattern “VGA timing 1024×768 / 60 Hz 48K” (VGA848 Timing856)

• 8 (100%) color bar + 16 (100%) grayscale, (pattern 918).

• Input level 100IRE 0.7Vp-p
The calibration picture

100% color bar
100% white bar

4. Press MENU + 1999 + ENTER on the remote control to enter factory mode.

5. Select “ADC Calibration” and then “Auto Calibration” in Factory Menu.

6. Press  or ENTER to start calibration.
The ADC value is automatically adjusted. If there’s no change after adjustment,

check step 3 above and then perform the calibration again.
The default values are shown below.

VGA Offset VGA Gain

R G B R G B

16 10 16 4652 4636 4640

10 Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual

YPbPr ADC calibration

1. Turn on the TV/DVD combo.

2. Set the input source to Component.

3. Select the calibration pattern.

• Set timing to 720P (Timing977)

• Set pattern to “8 color bar and 16 gray pattern” (Astro pattern 918).

• Input level 100IRE 0.7Vp-p

4. Press MENU + 1999 + ENTER on the remote control to enter factory mode.

5. Select “ADC Calibration” and then “Auto Calibration” in Factory Menu.

6. Press  or ENTER to start calibration.

7. Check black pattern (0 IRE). The luminance should be under 1 cd/m2.

8. Repeat steps 3 to 7 for timing 480P (timing 978).
The ADC value is automatically adjusted. If there’s no change after adjustment,

check step 3 above and then perform the calibration again.

Component 480p

Offset

R G B R G B R G B R G B

1024 130 1024 3234 3262 3188 1024 130 1024 3070 3082 3031

Component 480p

Gain

Component 720p

Offset

Component 720p

Gain

Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual 11

5. Block diagram

Line Driver
DRV602

Handphone
25mW/16 Ohm

I2S

R/L

HP AMP
TPA6132A2

LINE OUT

SCALER_UART

TVM_UART DVD Module

Factory_Debug

Winbond W9751G6IB-25

Winbond W25Q64BVSSIG

Broadcom
BCM35143

VSB/QAM

Demod

Signal MPEG

Video and

Audio

Decoder

WW Analog

Decoder

WW Analog
Decoder with
3D Comb

ADC VGA

656 Video

Capture

HDMI Rx

LVDS Tx

Video Display
Engine/Processing

Gamma LUT

Audio processing
and Audio DAC

MIPS CPU

ATSC Half NIM
NuTune FA2315

12 Analog Inputs

CVBS
S-Video
YPbPr
VGA
DVD_YPbPr

STA339BW

HDMI Processor
SiI9187A

HDMI*2

Audio
Switch
4052

Audio Inputs

CVBS, S-Video, Component
VGA
DVD_RL

DDR2, 32Mx16b Serial Flash, 64Mb

19" / 22"

1366*768

Single LVDS

Output

BCM35143

PWM

Speaker
3W/8Ohm *2

Audio AMP

SPDIF

USB 2.0

12 Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual

6. Exploded diagram

DX-19LD150A11

Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual 13

DX-19LD150A11

# Part Name Part Number

1 ASSY_FRONT-BEZEL-ANGUS-COMBO19 60.71V02.002
2 IR/LED ANGUS19_22 COMBO MP DIP 55.71V02.B01G
3 LCD 19" CMO M185B1-L02 56.07609.011
4 SPG-MB-G15 34.77A02.001
5 SPEAKER 8OHM 3W JONGGARXIN 001 23.42311.001
6 LIPS 53W DPS-53BP-1 A 00 ANGUS 56.04053.1C1

7 C.A.3-2P-AC-ANGUS-COMBO-19
8 DVD HH SL DESAY DS-C073-R 56.2338M.M02

9 KEYPAD BD ANGUS19_22 DD MP DIP 55.71V03.B01G
10 MB ANGUS19_22 COMBO X143 MP DI 55.71V01.B01G
11 ASSY_BACK-COVER-ANGUS-COMBO-19 60.71V04.002
12 CVR-INVERTER-ANGUS-COMBO-19 42.71V07.001
13 ASSY_STAND-FOOT-ANGUS-COMBO22 60.71V03.001

14 C.A.14-14P-POWER-ANGUS-19-DVD

15 C.A.3-3P-KEYPAD-ANGUS-19-DVD

16 C.A.9-9P-DVD-ANGUS-COMBO-19

17 C.A.12-12P-DVD-ANGUS-COMBO-19

18 C.A.5-5P-IR-LED-ANGUS-19-DVD

50.71V18.001

50.71V18.011

50.71V17.001

50.71V17.011

50.71V20.001

50.71V20.011

50.71V21.001

50.71V21.011

50.71V22.001

50.71V22.011

50.71V19.001

50.71V19.011

14 Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual

DX-22LD150A11

Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual 15

DX-22LD150A11

# Part Name Part Number

1 ASSY_BEZEL_FRONT_ANGUS22_COMBO 60.71V12.002

2 IR/LED ANGUS19_22 COMBO MP DIP 55.71V02.B01G

3 LCD 22" CMO V216B1-L03 56.07220.021

4 SPEAKER 8OHM 3W JONGGARXIN 001 23.42311.001

5 KEYPAD BD ANGUS19_22 DD MP DIP 55.71V03.B01G

6 DVD HH SL DESAY DS-C073-R 56.2338M.M02

7 SPG-MB-G15 34.77A02.001

8 LIPS DPS-65TP-2 A 00 ANGUS 22 56.04065.1H1

9 MB ANGUS19_22 COMBO X143 MP DI 55.71V01.B01G
10 ASSY_COVER_BACK_ANGUS22_COMBO 60.71V13.002
11 DOOR_LIPS_ANGUS22_COMBO 42.71V15.002
12 ASSY_STAND-FOOT-ANGUS-COMBO22 60.71V03.001

13 C.A.-POWER-14-14-ANGUS22

14 C.A.-IR-5-5-ANGUS22

15 C.A.-KEY-4-4-ANGUS22

16 C.A.-DVD-SIGNAL-12-12-ANGUS22

17 C.A.-DVD-PSU-9-9-ANGUS22

18 C.A.-AC-2-2-ANGUS22

50.71V14.001

50.71V14.011

50.71V15.001

50.71V15.011

50.71V16.001

50.71V16.011

50.71V24.001

50.71V24.011

50.71V25.001

50.71V25.011

50.71V26.001

50.71V26.011

16 Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual

7. Replacement parts list

DX-19LD150A11

# Part number Part name Descriptions

1 90.71V11.001 REMOTE CONTROL

2 91.71V10.B02G IR/LED BOARD

3 91.71V10.B01G KEYPAD BOARD
4 50.71V21.001 DVD CABLE 9/9PIN C.A.9-9P-DVD-ANGUS-COMBO-19

5 50.71V22.002 DVD CABLE 12/12PIN C.A.12-12P-DVD-ANGUS-COMBO-19
6 50.71V23.001 LVDS CABLE 30/30PIN C.A.30-30P-FFC-ANGUS-COMBO-19

7 50.71V20.001
8 50.71V19.001 IR CABLE 5/5PIN C.A.5-5P-IR-LED-ANGUS-19-DVD

9 50.71V18.001 AC CABLE 3/2PIN C.A.3-2P-AC-ANGUS-COMBO-19

10 50.71V17.001 POWER CABLE 14/14PIN C.A.14-14P-POWER-ANGUS-19-DVD
11 27.01518.J11
12 42.71V07.001 INVERTER COVER CVR-INVERTER-ANGUS-COMBO-19
13 42.71V28.001 DVD SUPPORT COVER

KEYPAD BOARD CABLE 3/
3PIN

POWER CORD 125V BLACK
W/PLORIZED USA

REMOTE DONGIN T202-ANGUS­COMBO

IR/LED ANGUS19_22 COMBO MP
PAC

KEYPAD ANGUS19_22 DD MP
PACKIN

C.A.3-3P-KEYPAD-ANGUS-19-DVD

CORD 125V BLACK W/PLORIZED
USA

HLDR-SUPPORT-MCM8-ANGUS19­DVD

14 60.71V04.002 BACK COVER 19"

15 60.71V02.002 FRONT BEZEL 19"

16 56.2338M.M02

17 6K.71VFT.001
18 56.07609.011 LCD 19" CMO M185B1-L02 LCD 19" CMO M185B1-L02
19 91.71V10.B03G

20 56.04053.1C1

21 23.42311.001

DVD-RW DRIVE DESAY
DS-C073-R

FOOT STAND PACK W/
SCREW

MAINBOARD ANGUS19_22
COMBO X143

POWER SUPPLY 53W
DPS-53BP-1

SPEAKER 8OHM 3W
JONGGARXIN

ASSY_BACK-COVER-ANGUS­COMBO-19

ASSY_FRONT-BEZEL-ANGUS­COMBO19

DVD HH SL DESAY DS-C073-R

STAND BASE PACK W/SCREW

MB ANGUS19_22 COMBO X143 MP

LIPS 53W DPS-53BP-1 A 00 ANGUS
SPEAKER 8OHM 3W JONGGARXIN

001

Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual 17

DX-22LD150A11

# Part number Part name Descriptions

1 90.71V11.001 REMOTE CONTROL

2 91.71V10.B01G KEYPAD BOARD
3 91.71V10.B02G IR/LED BOARD IR/LED ANGUS19_22 COMBO MP PAC

4 50.71V15.001 IR CABLE 5/5PIN C.A.-IR-5-5-ANGUS22
5 50.71V14.001 POWER CABLE 14/14PIN C.A.-POWER-14-14-ANGUS22
6 50.71V25.002 DVD CABLE 9/9PIN C.A.-DVD-PSU-9-9-ANGUS22
7 50.71V24.001 DVD CABLE 12/12PIN C.A.-DVD-SIGNAL-12-12-ANGUS22
8 50.71V26.001 AC CABLE 2/2PIN C.A.-AC-2-2-ANGUS22
9 50.71V27.011 LVDS CABLE 30/30PIN C.A.30-30P-FFC-CMO-ANGUS22

10 50.71V16.001

11 27.01518.J11
12 42.71V15.001 LIPS COVER DOOR_LIPS_ANGUS22_COMBO
13 60.71V12.002 FRONT BEZEL 22"

14 60.71V13.002 BACK COVER 22"

KEYPAD BOARD CABLE 4/
4PIN

POWER CORD 125V BLACK
W/PLORIZED USA

REMOTE DONGIN T202-ANGUS­COMBO

KEYPAD ANGUS19_22 DD MP
PACKIN

C.A.-KEY-4-4-ANGUS22

CORD 125V BLACK W/PLORIZED USA

ASSY_BEZEL_FRONT_ANGUS22_
COMBO

ASSY_COVER_BACK_ANGUS22_
COMBO

15 56.2338M.M02

16 6K.71VFT.001
17 56.07220.021 LCD 22" CMO V216B1-L03 LCD 22" CMO V216B1-L03
18 91.71V10.B03G

19 56.04065.1H1

20 23.42311.001

DVD-RW DRIVE DESAY
DS-C073-R

STAND BASE PACK W/
SCREW

MAINBOARD ANGUS19_22
COMBO X143

POWER SUPPLY DEL T A LIPS
DPS-65TP-2

SPEAKER 8OHM 3W
JONGGARXIN

DVD HH SL DESAY DS-C073-R

STAND BASE PACK W/SCREW

MB ANGUS19_22 COMBO X143 MP

LIPS DPS-65TP-2 A 00 ANGUS 2
SPEAKER 8OHM 3W JONGGARXIN

001

18 Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual

8. System disassembly procedure

Disassembly reminders

• ESD precautions should be observed to prevent damaging the internal
components.

• Follow the sequence indicated in the illustrative figures when removing the
screws securing the components.

• The screws for the different components vary in size. During the disassembly
process, group the screws with their corresponding components to avoid
mismatches when putting back the components.

• Prior to disassembly, place the TV on a stable, level surface protected by a
cushion.

Disassembly procedures
DX-19LD150A11

1. Disconnect the AC power cord from the TV.

2. Remove the 2 screws securing the pedestal stand.
M4*L18 screw—86.1H256.180

3. Remove the pedestal stand.
Pedestal stand—60.71V03.001

Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual 19

4. Remove the 6 screws securing the rear cover.
T4*L10 screw—86.EF256.100

5. Remove the 2 screws from the rear cover.
T3*L8 screw—86.CA214.8R0

6. Remove the tuner screw securing the rear cover.
Screw nut—87.1114C.C09

20 Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual

7. Remove the inverter cover from the rear cover.
Inverter cover—42.71V07.001

8. Disconnect the 2 panel lamp cable.

9. Turn the TV over and detach the front bezel from the rear cover.

Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual 21

10.Turn the TV over back and disconnect the IR cable.
IR cable—50.71V19.001/50.71V19.011

11.Disconnect the LVDS cable from the panel.
LVDS cable—50.71V23.001/50.71V23.011

12.Separate the TV covers as shown below.

22 Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual

13.Remove the 1 screw on the IR/LED board.
Screw—86.CA214.8R0

14.Remove the IR/LED board.
IR/LED board—55.71V02.B01G

15.Disconnect the DVD signal and DVD power cable,
DVD signal cable—50.71V21.001/50.71V21.011

DVD power cable—50.71V22.001/50.71V22.011

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16.Remove the 4 screws securing the DVD module.
T3*L10 screw—86.YA524.100

17.Tear the tape off the main board.
Tape—42.3XC24.001

18.Remove the DVD module from the rear cover.
DVD module—56.2338M.M02

24 Dynex DX-19LD150A11/DX-22LD150A11 LCD TV/DVD combo service manual

19.Disconnect the control cable from the control board.
Control cable—50.71V20.001/50.71V20.011

20.Remove the screws securing the control module.
T3*L10 screw—86.YA524.100

21.Remove the control module from the rear cover.

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