Hitachi L32A102, L32A102G Schematic

0031E

- NOTICE­ All warranty parts
are provided through
Hitachi Customer Service.
All Servicers should call
800-654-7013

Rev 070809or

L32A102
L32A102G

Caution

Be sure to read this manual before servicing. To assure safety from re, electric shock, injury harmful radiation and
materials, various measures are provided in this Hitachi LCD TV.
Be sure to read the cautionary items described in the manual to maintain safety before servicing.

Service warning

1. Do not attempt to modify this product in any way and never perform customized installations without manufacturer’s
approval. Unauthorized modi ions will not only void the warranty , but may lead to your being liable for any
resulting property damage or user injury.
Service work should be performed only after you are thoroughly familiar with all of the following safety checks and

2.
servicing guidelines. To do otherwise, increase the risk of potential hazards and injury to the user.
While servicing, use an isolation transformer for protection from A.C. line shock.

3.

Contents

* SAFETY NOTICE .................................................. 2-4

PRODUCT SPECIFICATIONS ................................ 5

*

FUNCTIONAL OVERVIEW ................................. 6-7

*

CONNECTIONS ................................................. 8-10

*

ADJUSTMENTS ............................................... 11-13

*

* WIRING DIAGRAM ......................................... 14-15

PCB DIAGRAM ............................................... 16-18

*

BLOCK DIAGRAM .......................................... 19-20

*

SCHEMATIC DIAGRAMS ............................... 21-31

*

DC VOLTAGES ...................................................... 32

*

WAVEFORMS .................................................. 33-35

*

TROUBLESHOOTING ..................................... 36-42

*

QUICK DISASSEMBLY GUIDE ....................... 43-45

*

REPLACEMENT PART LIST ............................ 46-63

*

MAIN PARTS VIEW ............................................... 64

*

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

November 2008 Digital Media Systems Group, Hitachi Asia Ltd.

LCD Television

SAFETY NOTICE

PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS

Important Safety Instructions

Read Instructions - All the safety and operating

1.
instructions should be read before the product
is operated.

Retain Instructions - The safety and operating

2.
instructions should be retained for future
reference.

Heed Warnings - All warnings on the product

3.
and in the operating instructions should be
adhered to.

Follow Instructions - All operating and use

4.
instructions should be followed.

Cleaning - Unplug the product from the wall outlet

5.
before cleaning. Do not use liquid cleaners or
aerosol cleaners. Use a dry cloth for cleaning.

Attachments - Only use attachments/accessories

6.
speci ed by the manufacturer.

Water and Moisture - Do not use the product near

7.
water, for example, near a bath tub, wash bowl,
kitchen sink, or laundry tub, in a wet basement,
or near a swimming pool, etc.

Accessories - Do not place the product on an

8.
unstable cart, stand, tripod, bracket, or table.
The product may fall, causing serious injury to a
child or adult, and serious damage to the product.
Use only with a cart, stand, tripod, bracket, or
table recommended by the manufacturer, or sold
with the product. Any mounting of the product
should follow the manufacturer’s instructions and
should use a mounting accessory recommended
by the manufacturer. The product and cart
combination should be moved with care. Quick
stops, excessive force, and uneven surfaces
may cause the product and cart combination to
overturn.

Ventilation - Slots and openings in the cabinet

9.
are provided for ventilation and to ensure reliable
operation of the product and to protect it from
overheating, and these openings must not be
blocked or covered. The openings should never
be blocked by placing the product on a bed, sofa,
rug, or other similar surface. The product should
not be placed in a built-in installation such as
a bookcase or rack unless proper ventilation is
provided or the manufacturer’s instructions have
been adhered to.

Power Sources - The product should be operated

10.
only from the type of power source indicated on
the marking label. If you are not sure of the
type of power supply to your home, consult your

appliance dealer or local power company.

Power Cord Protection - Power cords should be

11.
routed so that they are not likely to be walked
on or pinched by items placed upon or against
them, paying particular attention to cords at
plugs, convenience receptacles, and the point
where they exit from the appliance.

Lightning - For added protection for the product

12.
during a lightning storm, or when it is left
unattended and unused for long periods of time,
unplug it from the wall outlet and disconnect
the antenna or cable system. This will prevent
damage to the product due to lightning and
power-line surges.

Power Lines - An outside antenna system should

13.
not be located in the vicinity of overhead power
lines or other electric light or power circuits, or
where it can fall into such power lines or circuits.
When installing an outside antenna system,
extreme care should be taken to keep from
touching such power lines or circuits as contact
with them might be fatal.

Overloading - Do not overload wall outlets and

14.
extension cords as this can result in a risk of re
or electric shock.

Object and Liquid Entry - Never push objects of

15.
any kind into the product through any openings
as they may touch dangerous voltage points or
short-out parts that can result in a re or electric
shock. Never spill liquid of any kind on the
product.

Servicing - Do not attempt to service the

16.
product yourself as opening or removing covers
may expose you to dangerous voltage or other
hazards. Refer all servicing to quali ed service
personnel.

Repairing - Unplug the product from the wall

17.
outlet and refer servicing to quali ed service
personnel under the following conditions:

When the power cord or plug is damaged.

a.

If liquid has been spilled, or objects have

b.

fallen into the product.

If the product has been exposed to rain or

c.

water.

If the product does not operate normally by

d.

following the operating instructions. Adjust
only those controls that are covered by
the operating instructions as an improper

3

adjustment of other controls may result in
damage and will often require extensive
work by a service technician to restore the
product to its normal operation.

If the product has been dropped or damaged

e.

in any way.

When the product exhibits a distinct change

f.

in performance this indicates a need for
service.

Replacement Parts - When replacement parts

18.
are required, be sure the service technician
has used replacement parts speci ed by the
manufacturer or have the same characteristics
as the original part. Unauthorized substitutions
may result in re, electric shock or other
hazards.

Safety Check - Upon completion of any service or

19.
repairs to the product, ask the service technician
to perform safety checks to determine that the
product is in proper operating condition.

Heat - Do not install the product near any

20.
heat sources such as radiators, heat registers,
stoves, or other products (including ampli ers)
that produce heat.

21.

Installation Location - Place the product on a
rm and at surface. Avoid placing the product
in areas of direct sunlight, heating radiators,
closed automobiles, high temperature, high
humidity, excessive dust, strong vibration,
impact or strong magnetic elds, as the internal
parts may be seriously damaged.

22.

Hazards of Electrical Shock and Fire - Do not
touch the power cord with wet hands. Hold the
plug when disconnecting the power cord. Do
not pull the power cord. Unplug the power cord
from the wall outlet when the product is not used
for long periods of time.

23.

Hearing Safety - Listen at a moderate volume.
Using headphones at high volume can impair
your hearing.

Sometimes, the LCD screen may have some tiny

•

red, blue, white or black spots. This is normal
and does not affect the performance.

4

5

PRODUCT SPECIFICATIONS

Panel Size 31.51 inches

L32A102 & L32A102G

Resolution 1366

×768

Power Requirement AC 120V, 60 Hz
Power Consumption

Audio Output

115W, 1A (L32A102)
180W, 1.6A (L32A102G)

Dimension
(W

×H×D)

Weight

Terminals

With Stand

Without Stand

With Stand

Without Stand

AV1
AV2

AV3
HDMI1

HDMI2
RGB

OUTPUT
HEADPHONE

31.3×21×3.3 inch (795×533×85mm)

31.3×22.7×11 inch (795×576×280mm)

7W + 7W

34.5 lbs. (15.7kg)

30 lbs. (13.7kg)

S-VIDEO, VIDEO IN, L/R AUDIO IN
S-VIDEO, VIDEO IN, L/R AUDIO IN

COMPONENT IN, L/R AUDIO IN
HDMI IN

Input Signals TV Standard

Component
HDMI

Analog RGB

ATSC/QAM/NTSC
480i/p, 720p, 1080i

480i/p, 720p, 1080i

VGA-WXGA

HDMI IN
RGB IN, AUDIO IN(Mini jack)

L/R AUDIO OUTPUT, COAXIAL DIGITAL AUDIO OUTPUT
Mini jack

NOTE

Design and specifications are subject to change without notice.
Weight and dimensions shown are approximate values only.

Model Name

FUNCTIONAL OVERVIEW

Front Panel

1

2

Side Panel

3

INPUT

4

5

3

HDMI2 Input terminal
Connect to an equipment with a HDMI output.

A HDMI Input from a DVI source will not have
sound.

4

AV2 Input terminal
Connect to an equipment with a S-video or

an audio/video output.

VOL

CH

POWER

Remote control sensor

1

Receives signal from the remote control.

2

Power indicator

Lights up in red when the TV is in standby mode.
Lights up in blue when the TV is turned on.

Head Phone jack

5

Connect to head phones.

MENU

6

INPUT

POWER

6
7

VOL

8

CH

9

10

Press to enter or exit from the TV menu.

7

INPUT
Press to select TV, HDMI1, HDMI2, AV1(Video),
AV2(Video), AV3, RGB, AV1(S-Video), or
AV2(S-Video) inputs.

Volume Up/Down (VOL+/-)

8

Press to adjust the volume.
Left/Right Cursor ( )

Press to select or adjust the desired item on the TV menu.

9

Channel Up/Down (CH+/-)
Press to select previous/next channel.

Up/Down Cursor ( )
Press to select or adjust the desired item on the TV menu.

10

POWER
Press to turn the TV power on or off.

Rear Panel

11

AC Input terminal
Connect to the wall outlet, using the supplied
Power Cord.

12

HDMI1 Input terminal
Connect to an equipment with a HDMI output.
A HDMI Input from a DVI source will not have
sound.

AV3 Input terminals

13

Connect to an equipment with a component output.

14

Audio Output terminal
Connect to an equipment with an audio input. This
audio level is fixed and cannot be adjusted using
TV volume control.

11

HDMI1

PBYPR

AIR/CABLE

HDMI1

B

Y

R

COAXIAL

P

P

VIDEO

AUDIO

AUDIO

S-VIDEO

AUDIO

OUTPUT

AUDIO

VIDEO

AUDIO

OUTPUT

12 13 14

AV1 Input terminal

15

COAXIAL

S-VIDEO

AUDIO

15 18

1716 19

AIR/CABLE

Connect to an equipment with a audio/video output.

Digital Audio Output terminal

16

Connect to an equipment with a digital audio input.

RGB Input terminal

17

Connect to a PC.

USB terminal

18

For service use only.

AIR/CABLE Input terminal

19

Connect to an equipment with an antenna output or a
wall antenna cable.

6

Remote Control

1

2
3

4
5

6

7

8

15

FAV CH

16

17

CH

INFO

10

11
12

13

14

18

19

22

20

21

Dash ( )

7

Press to view digital sub channels. First enter the
main channel number, then press this button, then

9

enter the sub-channel number.

Menu

8

Press to enter or exit from the TV menu.

9

Picture Mode
Press to select the desired picture mode.

10

Sound Mode
Press to select the desired sound mode.

11

INFO
Press to display the current channel/program
information.

CC

12

Select between Closed Caption modes.

13

Last Channel (LAST CH)
Press to return to previously viewed channel.

GUIDE

14

Press to display the Electronic Program Guide(EPG).

Up/Down Cursor

15

Press to select or adjust the desired item on the TV
menu.

CLE-1001

1

Power On/Standby
Press to turn the TV on or off.

2

ASPECT

( )

Press to select the desired picture format.

3

INPUT
Press to select TV, HDMI1, HDMI2, AV1(Video),
AV2(Video), AV3, RGB, AV1(S-Video), or
AV2(S-Video) inputs.

4

TV
Press to change to TV mode viewing.

FAV CH

16

Press to display your favorite channels list.

17

Channel Up/Down (CH /CH )
Press to change up/down channel.

OK

18

Press to confirm and execute the selection.

Left/Right Cursor

19

Press to select or adjust the desired item on the TV
menu.

Mute

20

Press to mute or restore the volume.

Volume Up/Down (VOL +/-)

21

Press to adjust the volume.

MTS/SAP

5

Press to select Mono, Stereo or SAP mode.

6

Channel Select (Numeric Keys)
Press to select the TV channel directly.

7

CONNECTIONS

Setting up your TV

Connecting an antenna, cable TV, or
satellite TV

AIR/CABLE

HDMI1

P

Y

P

COAXIAL

VIDEO

B

R

AUDIO

AUDIO

S-VIDEO

AUDIO

OUTPUT

HDMI1

B

R

P

Y

P

AUDIO

AUDIO

OUTPUT

COAXIAL

VIDEO

S-VIDEO

AUDIO

AIR/CABLE

Connecting a standard video device

Note

Your TV supports multiple video source inputs. For
temporary or easy-access video connections, use
the side jacks (AV2). For more permanent
connections, use the rear jacks (AV1).

AIR/CABLE

HDMI1

COAXIAL

P

Y

P

VIDEO

B

R

AUDIO

AUDIO

S-VIDEO

AUDIO

OUTPUT

B

R

P

Y

P

AUDIO

AUDIO

OUTPUT

COAXIAL

VIDEO

S-VIDEO

AUDIO

To connect an external antenna, cable TV, or
satellite TV:

1 Plug the antenna cable (2) from an antenna,

cable TV, or satellite receiver (3) to the

AIR/CABLE jack on your TV (1).
2TurnonyourTV.
3 Press INPUT, then press / to select TV.

To connect a standard video device to the
AV1 jacks:

1 Plug an RCA video cable (4) into a standard

video source (5) and into the VIDEO jack (1)
on the back of your TV.

2 Plug the RCA audio cables (2) into the video

device's audio output jack and into the upper
AUDIO L and AUDIO R jacks on the back of

your TV.
3 TurnonyourTV.
4 Press INPUT, then press / to select AV1

(Video) .

To connect an external video device to the
AV2 jacks:

1 Plug the RCA video connector (8) into a

standard video device (5) and VIDEO jack (6)

on the side of your TV.
2 Plug the RCA audio connectors (7) into the

audio out jacks on the video device and into

the AUDIO L and AUDIO R jacks (6) on the

side of your TV.
3 TurnonyourTV.
4 Press INPUT, then press / to select AV2

(Video) .

8

To connect a standard S-Video device to AV1
jacks:

1 Plug an S-Video cable (3) into the S-Video

out jack on an S-Video device (5) and into the
S-VIDEO jack (1) on the back of your TV.

2 Plug RCA audio cables (2) into the S-Video

device audio output jacks and into the AUDIO

L and AUDIO R jacks on the back of your TV.
3 Turn on your TV.
4 Press INPUT and / to select AV1(S-Video).

To connect a standard S-Video device to AV2
jacks:

1 Plug an S-Video cable (9) into the S-Video

out jack on an S-Video device (5) and into the

S-VIDEO jack (6) on the back of your TV.
2 Plug RCA audio cables (7) into the S-Video

device audio output jacks and into the AUDIO

L and AUDIO R jacks on the back of your TV.
3 Turn on your TV.
4 Press INPUT and / to select AV2(S-Video).

Connecting a component video device

To connect a progressive-scan or HDTV
video source to Y/Pb/Pr jacks:

1 Plug a component video cable (2) into the

progressive-scan or HDTV video device (3)
and into the Y/Pb/Pr jacks (1) on the back of
your TV.

2 Plug the RCA audio cables (4) into the audio

out jacks on progressive-scan or HDTV video
device and into the lower AUDIO L and

AUDIO R jacks (1) on the back of your TV.
3TurnonyourTV.
4 Press INPUT, then press / to select

AV3.

Connecting a digital audio input

You can connect your TV audio out to a digital
amplifier.

AIR/CABLE

HDMI1

P

Y

P

COAXIAL

VIDEO

B

R

AUDIO

AUDIO

S-VIDEO

AUDIO

OUTPUT

B

R

P

Y

AIR/CABLE

HDMI1

Y

COAXIAL

P

P

VIDEO

B

R

AUDIO

AUDIO

S-VIDEO

AUDIO

OUTPUT

B

R

P

Y

P

AUDIO

AUDIO

OUTPUT

COAXIAL

VIDEO

S-VIDEO

AUDIO

P

AUDIO

AUDIO

OUTPUT

COAXIAL

VIDEO

S-VIDEO

AUDIO

To connect to an amplifier equipped with a
digital audio input:

• Plug a coaxial cable (2) into the amplifier (3)
and into the COAXIAL OUTPUT jack (1) on
the back of your TV.

9

Connecting a computer

HDMI1

P

Y

P

B

R

AUDIO

AUDIO

OUTPUT

HDMI1

AIR/CABLE

COAXIAL

VIDEO

S-VIDEO

AUDIO

To connect a computer using VGA:

1 Plug a VGA cable (4) into the VGA port on

the computer (6) and into the RGB INPUT
port on the back of your TV.

2 Plug an audio cable (5) into the audio jack on

the computer (6) and into the AUDIO RGB

INPUT port on the back of your TV.
3TurnonyourTV.
4 Press INPUT, then press / to select RGB.

To connect to a computer or other HDMI
device using the HDMI1 jack:

1 Plug an HDMI cable (2) into the HDMI port on

the HDMI device (3) and into the HDMI1

INPUT port on the back of your TV.
2TurnonyourTV.
3 Press INPUT, then press / to select

HDMI1.

To connect to a computer or other HDMI
device using the HDMI2 jack:

1 Plug an HDMI cable (8) into the HDMI port on

the HDMI device (3) and into the HDMI2

INPUT port on the side of your TV.
2TurnonyourTV.

3 Press INPUT, then press / to select

HDMI2.

Note

When the computer goes into standby, TV shows
“No Sync” message and will never turn off.

10

ADJUSTMENTS

1. S/W Check

The software version of the L32A102/G LCD TV can be
checked through the Factory Menu by following the next
procedure:

Press following buttons in secuence

[INPUT] + [2] + [5]+ [8]+ [0]

Factory Menu
Video Quality
ADC Setting
ColorTemp Setting
Other Setting

About...

Factory Menu

Video Quality
ADC Setting
ColorTemp Setting
Other Setting

About...

Then enter to the “About” Option using the cursor buttons.
Next Screen will appear.

About...
Mstar Ver 0.1
[10:37:45 10/30/08]
AU32T315X-W02

The third row shows the latest Software Version.

Till this day the latest software versions is:

Model S/W Version

L32A102 10/30/08

L32A102G 10/30/08

Software versions are subject to change for improvement.
Contact 1-800 Hitachi or www.hitachiserviceusa.com for the
latest version.

1.1 How to get to the Service Mode Menu

The Service Mode Menu can be reached by following the
next sequence:

[INPUT] + [2] + [5]+ [8]+ [0]

2. To exit the Service Mode press [MENU] key of the remote

control.

The next picture shows the Service Mode OSD for the
L32A102/G LCD TV.

2. FACTORY RESET

The Factory Reset function is to change all the L32A102/G
LCD TV user parameters to their default factory shipping
conditions.
It is recommended to execute this procedure after all the
servicing are finished and before returning the LCD TV to
the owner.

2.1 FACTORY RESET procedure

(1) Enter Service Mode by the procedure in section 1.1.
(2) Select the fourth option “Other Setting” of the service

mode menu, Next Screen will appears.

Other Setting
Database Init ►
Shipment Setting ►
Debug Mode ◄ Off ►
White Pattern ◄ Off ►

DLC ◄ Off ►

(3) Highlight the “Shipment Setting” option, then press the

right cursor key (►) for more than 1 second.

(4) Highlight the “Yes” option, then press the OK button, the

Factory Reset function will start.

NOTE: Until the factory reset operation finishes, do not
unplug the AC cord or neither press the front panel Power
button switch.

(5) The Factory reset procedure is finished when the TV is

shut down.

(6) Push the POWER button again and turn on the LCD TV.

All settings and data are updated.

Confirm the settings are in factory shipping conditions (refer
to next page).

11

3. FACTORY SHIPPING CONDITIONS

Video HDMI TV AV1/AV2 AV3 RGB S-Video

Picture Mode Dynamic
Contrast 70 70 70 70 50 70
Brightness 30 30 32 35 45 32
Color 65 65 65 70 N/A 65
Sharpness 65 70 70 70 60 70
Tint -6 -6 0 0 N/A 0
Color Temperature Cool Cool Cool Cool Warm Cool
Aspect 16:9
Noise reduction Off Off Low Medium N/A Low
Advanced (RGB

only)

H-Pos 50
V-Pos 20
Clock 50
Phase 50
Auto

Audio Sound Mode Standard

Bass 50
Treble 50
Balance 0
Preferred Language English
Digital Output PCM
MTS Stereo
Surround Sound Off
Audio Only Off

Channel TV Source Air

Auto Scan Scan All

Digital Channels

Analog Channels
Favorites No./Name/Favorite
List No./Name/Skip
Channel No.
Channel ID
DTV Signal Weak/Normal/Strong

Timers Sleep Timer -- Min

Time Zone Pacific­DST Off
Time Format 12-hour
Clock

12

3. FACTORY SHIPPING CONDITIONS (CONT.)

Locks Enter Password

Change Password Enter Old Password

Enter New Password

Confirm Password
System Lock Off
Input Block TV Unblock

HDMI Unblock

AV(Video) Unblock

AV3 Unblock

RGB Unblock

AV(S-Video) Unblock
US TV Rating

Movie Rating
Canada Canadian Ratings(Eng)

Canadian Ratings(Frn)
RRT Setting
Reset RRT Are you sure? No /Yes

Setup Menu Language English

Transparency 50 %
OSD Time Out 15 sec.
Closed Captions-

Speakers

CC Mode CC Off

Basic Selection CC1

Advanced Selection Service1

Options Mode Default

Font Style Default
Font Size Default
Font Edge Style Default
Font Edge Color Default
FG Color Default
BG Color Default
FG Opacity Default
BG Opacity Default

Restore Default Are you sure? No

13

WIRING DIAGRAM

J2

RMC PCB

TV FUNCTION BUTTON PCB

SPEAKER

LCD PANEL

CON4

CON1

CON3

CON1

CON5

MAIN PCB

CON14

XP3

CON4

CON9

CON5

POWER PCB

14

CON2

CON1

CON4

AV PCB

BL-ON/OFF

1

CON5

1

BL-ON/OFF

GND

GND

BL-ADJUST

2

2

GND

GND

BL-ADJUST

LCD TFT

GND

GND

GND

GND

GND

GND

24V

24V

24V

9876543

9876543

24V

AC120V /60Hz

CON1

POWER PCB

5V

24V

24V

24V

12

11

10

12

11

10

24V

24V

24V

RXE3+

40

39

RXE3-

38

RXEC+

RXEC-

37

RXE2+

36

RXE2-

35

RXE1+

34

RXE1-

33

RXE0+

32

RXE0-

31

RXO3+

30

29

RXO3-

28

RXOC+

RXOC-

27

RXO2+

26

RXO2-

25

RXO1+

24

RXO1-

23

22

RXO0+
RXO0-

21

C4

20

C3

19

C2

18

17

C1

16

GND

15

GND
GND

14

GND

13

GND

12

SEL2

11

10

SEL1

LVDS

9

GND

8

GND

7

6

GND

5

GND

4

3

2

1

CON3

VCC PANEL
VCC PANEL

VCC PANEL

VCC PANEL

C4

C3

C2

C1

GND

GND
GND
GND

GND

SEL2

SEL1

GND

GND

GND

GND

RXE3+

RXE3-

RXEC+
RXEC-

RXE2+

RXE2-

RXE1+

RXE1-

RXE0+

RXE0-

RXO3+

RXO3-

RXOC+
RXOC-

RXO2+

RXO2-

RXO1+

RXO1-

RXO0+
RXO0-

LVD S

VCC PANEL
VCC PANEL

VCC PANEL

VCC PANEL

40

39

38

37

36

35

34

33

32

31
30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

CON4

CON1

GND

1

1

GND

XP3

GND

BL-ADJUST

2

2

GND

BL-ADJUST

LED R

LED G

2

1

12V

BL-ON/OFF

12V

BL-ON/OFF

TV KEY

12V

GND

12V

GND

MAIN PCB

GND

3V3STB

RMC IN

543

6

GND

GND

5V

+5VSTB

STANDBY

9876543

12

11

10

9876543

12

11

10

ROUT-

4

3

2

1
CON14

1

2

3

4

SPEAKER

5V

5V

+5VSTB

STANDBY

ROUT+

LOUT-

LOUT+

SPEAKER

5
4

3

2

1

CON4

10

9

8

7

6

5

4

3L

2

1

CON1

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

CON2

HPL

GND

HPR

GND

C

Y

R

5V

GND

GND

GND

GND

GND

GND

SDA

SCL

GND

RXC-

RXC+

GND

RX0-

RX0+

GND

RX1-

VCC

RX1+

GND
RX2-

+5V

RX2+

HP MUTE

VIDEO

CTRL2

AV PCB

CEC_INB

C

Y

R

L

5V

HP MUTE

HPL

GND

HPR

GND

GND

GND

GND

GND

GND

VIDEO

GND

SDA

CTRL2

SCL

GND

RXC-

RXC+

GND

RX0-

CEC_INB

RX0+

GND

RX1-

VCC

RX1+

GND
RX2-

+5V

RX2+

5
4

3

2

1

CON5

10

9

8

7

6

5

4

3

2

1

CON4

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

CON9

J2

RMC PCB

15

1

LED R

2

LED G

GND

543

RMC IN

3V3STB

1

GND

2

KEY

TV

FUNCTION

BUTTON

PCB

PCB DIAGRAMS

FUNCTION BUTTON BOARD DIAGRAM

RMC BOARD DIAGRAM

AV BOARD DIAGRAM

16

MAIN BOARD DIAGRAM (TOP)

17

MAIN BOARD DIAGRAM (BOTTOM)

18

BLOCK DIAGRAM

SCALER/LVDS/ADC/JACK/
AV SWITCH/STEREO/
SOUND AMP BLOCK DIAGRAM

LCD PANEL

LINE L OUT

LINE R OUT

TDA7266S

12

AMP

SPEAKER ROUT

SPEAKER LOUT

4

PHONE OUT

REMOCON PCB

POWERON

OPERATION_PCB

128M

DDRAM

126

M_SDA

36

127

M_SCC

37

128M

DDRAM

44

51

CM1671A-KQ

374260

36

1

16M

FLASH

AUDIO AMP

4580

2

L OUT

R OUT

74

TV VIDEO DECORD

/ADC/SCALE

MSD119CL

39

38

59

28

Y

R

L

Pb

1

7

AUDIO AMP

4580

2

6

L OUT

R OUT

77

76

31

21

26

Pr

2324161757

BGRHSVSLR

TX

58

7

6

73

TV_KEY

MC9S08QG4

MCU

RX

103

104

T SDA

T SCC

PS321

SWITCH

981

DEMUX

MSD809

15 14

TUNER

DTVS205FL201A

RF

SIF

2021

CVBS

AV1_S_VIDE_C

AV1_S_VIDE_Y

AV1_L

AV1_R

AV1_CVBS

AV2_C

AV3_Y

AV2_Y

2

4

ADG794

5

AV3_Pb

7

VIDEO

SWITCH

11

AV3_Pr

9

EPROM

24LC02

RGB

HV/VS

PC

PC_L/R

HDMI1

EPROM

24LC02

PS121

SWITCH

EPROM

24LC02

HDMI2

19

POWER BLOCK DIAGRAM

POWER SUPPLY

HV

+12V

+5V
STB

+5V

R120

L31L31

+5V +3.3V

L30L30

R9R9

L8L8

L53L53

L82L82

L69L69

L9L9

U9
BA05

U2
AM1117
3V3

U50
TPS60400

U40
AM1117
3V3

U27
AM1117
3V3

U29
AM1117
2V6

U25 AM1117 3V3

-5V

L21L21

L67

L87L87

L19L19

L22L22

L57L57

L58L58 L59L59

L60L60

U3
A04801

U39
AP1122

L27L27

HV

L90L90

L83L83

L62L62

L55L55

L74L74

L56L56

L20L20

LCD PANEL

TV TUNER U38 +5V

AMP U31 7266

MCU U34 9S08

U1 4052 +5V

PANEL LVDS

TV IF U38

U1 4052 -5V

U4&U6 4580 -5V

U6 4580 +5V

U4 4580 +5V

U41 809 +3.3V

U41 809 +1.2V

U5 PI5V330 +5V

U17 PS321 +3.3V

AV-BOARD PS121 +3.3V

DDR +2.6V

DDR +2.6V

MSD119 +2.6V

MSD119 +3.3V

MSD119 +3.3V

MSD119 +3.3V

MSD119 +3.3V

MSD119 +3.3V

MSD119 +3.3V

U26 AM1117 3V3

U49 AAT1346

MSD119 +3.3V

MSD119 +1.26V

20