KONKA DLC-3211UT, DLC-3711UT, DLC-2611UT Schematic

LCD TV SERVICE MANUAL

Model list

DLC-3211UT
DLC-3711UT
DLC-2611UT

KONKA GROUP CO,LTD.

Digital Flat Display Division

IMPORTANT SERVICE SAFETY INFORMATION

Operating the receiver outside of its cabinet or with its back removed involves a shock hazard.
Those who are thoroughly familiar with precautions necessary when working on high voltage
equipment should only perform work on these models.

Exercise care when servicing this chassis with power applied. if carelessly contacted, can cause
serious shock or result in damage to the chassis. Maintain interconnecting ground lead connections
between chassis, escutcheon, picture tube dag and tuner when operating chassis.

When it is necessary to make measurements or tests with AC power applied to the receiver
chassis, an Isolation Transformer must be used as a safety precaution and to prevent possible damage
to transistors. The Isolation Transformer should be connected between the TV line cord plug and the
AC power outlet.

It is important to maintain specified values of all components and anywhere else in the received
that could cause a rise in operating supply voltages. No changes should be made to the original design
of the receiver.

Components shown in the shaded areas on the schematic diagram and/or identified by in the
replacement parts list should be replaced only with exact factory recommended replacement parts. The
use of unauthorized substitute parts man creates may create shock, fire, or other hazards.

Before returning the receiver to the user, perform the following safety checks:

1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged

between the chassis and other metal parts in the receiver.

2. Replace all protective devices such as non-metallic control knobs, insulating fish papers, cabinet

backs, adjustment and compartment covers of shields, isolation resistor-capacitor networks,
mechanical insulators etc.

3. To be sure that not shock hazard exists, a check for the presence of leakage current should be made

at each exposed metal part having a return path to the chassis (antenna, cabinet metal, screw heads
knobs and/or shafts, escutcheon, etc.) in the following manner.

Plug the AC line cord directly into a 100~240V, AC receptacle. (Do not use an Isolation
Transformer during these checks.) All checks must be repeated with the AC line cord plug connection
reversed. (If necessary, a non-polarized adapter plug must be used only for the purpose of completing
these checks.)

PLEASE READ BEFORE ATTEMPTING SERVICE

1. Use an Isolation Transformer when performing any service on this chassis.

2. Never disconnect any leads while receiver is in operation.

3. Disconnect all power before attempting any repairs.

4. Do not short any position of the circuit while the power is on.

5. For safety reasons, replace components any with identical replacement parts (SEE PARTS LIST).

6. Before alignment, warm up the TV for at least 30 minutes.

7. When removing a PCB or related component, after unfastening or changing a wire, be sure to put

the wire back in its original position.

8. Inferior silicon grease can damage IC's and transistors. When replacing IC's and transistors, use

only specified silicon grease. Remove all old silicon when applying new silicon.

A. SPECIFICATION

Color System : NTSC_M、ATSC/Free QAM
Sound System : BTSC/SAP
Frequency range: Antenna(2~69)、Cable(2~135)
Audio output power 10%THD 10W X 2
Antenna Impedance 75Ω(Unbalance)

Power Consumption 160W(26”) , 180W(32”)，200W(37”)
Power Supply : AC~110-240V, 60Hz

item

1
3
4

5
6
7

8
9

Port list

RF ANTENNA & Cable
Composite
S_VIDEO
Y、Cb/Pb、Cr/Pr

VGA
HDMI

SPDIF(OUT)
AC Input

ADJUSTMENT MANUAL

Ⅰ. TEST NOTE

1

. Please follow the pointed test steps and choose the right test equipment to

conduct adjustment, otherwise good effect of Unit could not be obtained. The
unit should be warmed up for 30 minutes before adjustment and every
parameter should be adjusted repeatedly till the optimum value obtained, the
pointed voltage value should be ensured during test to get satisfied test result.

2. Test environment

1) Temperature

：

15°C-35°C

2) Relative Humidity: 45-75%

3) Air pressure: 86-106Kpa

3 Test equipments（The following equipment should be calibrated before testing

1) Computer 1 set

2) Multi-meter (VICTOR VC9801) 1 set

3) Video Signal Generator (Chroma Model 2227/2327) 1 set

4) Color Analyzer (Chroma Model 7120 ) 1 set

5) TV Video Signal Generator (FLUKE PM54200) 1 set

6) ATSC signal Generator (SFU) 1 set

4 Factory mode adjustment

4.1 Enter factory mode adjustment
Using the remote control, press INPUT button once first , then press “2580”

digital keys , and you can see manufacture menu on the LCD panel.

4.2 factory menu operation method
Press the “ . ” key to select the page. Press the “

▽△

” to select the item you

desired change, and press the “< >” to set the value.

4.3 exit the factory menu
Press “Exit” to exit the factory menu , the value you have changed will be

save automatically.

4.4 White calibration adjustment

1 Receive black or white signal under TV、AV or HDMI mode, adjusting
brightness and contrast to set the brightness to 15 Nit in dark area and 90 Nit in
bright area.

2 Adjust white balance. Press“ . ”button to select the page adjusting White
calibration , Press the “

▽△

” to select the item you desired change, and press the

“< >” to set the values as follow.

Red Offset 1000
Green Offset 1000
Blue Offset 1000

3 Then adjusting “Red gain、Green gain、Blue gain” to adjust the chromaticity
coordinates of black and white to fit the requirement.

）

9

0

2

Y/Pr/Pb1

Y/Pr/Pb2

PC IN

PC
AUDIO

HDMI

(HDCP)

CVBS_OUTPUT

CVBS

S_Video

Analog TV1

FROM TUNER BOARD

SWITCH

I2S

HDMI_SPDIF

Sil9011

BLOCK DIAGRAM

HDA005A Board Block Diagram

PC AUDIO

YPBPR1 AUDIO

YPBPR2 AUDIO

SVP-EX62

8051_BUS

TS1 bus

RJ45

Ethernet

PC_HDTV AUDIO

SWITCH

THC63LVD103

LVDS OUTPUT

DEVICE

HiDTV - LX
SVP-EX62
TVP5147
Sil9011

TEA6415

I2C SLAVE ADDRESS

7Ch/7Dh

60h/68h
4Eh/4FhPCA9555
06h

I2C

GPIO

DOUT

AnalogRGB

IR

I2S/SPDIF

MI

DDR

(8Mx16, 4 pcs)

Schematict Name Rev

Size

KEYPAD

1394/656

CAPD/IDE

TS1
TS2

PCI/FLASH/68K

FLASH

(16MB)

Infrared

8051

HiDTV - LX

ADC

68000 bus

512Kx8
Flash

Buttons

24-bit

I2S

SPDIF

HDMI_SPDIF

Title

KONKA HIDTV ATSC MAIN

Block Diagram 7

of

B

224

SWITCH

Date:Sheet

Tuesday, March 21, 2006

SPDIF

AIR

CABLE

分配器

ALPS_RF-SW

+B1NC

SW.B2NC4Co.15Co.26OOB7GND8GND

3

RF_SELECT1

RF_SELECT2

切换开关

GND
GND
GND

RF

连接线

12
11
10
9

TDHU

TDHU1-054A2

3

M4

31

M3

3

M2

2

M1

NC1NC2+5V3NC4NC5GND6RESET7ERR8NC9NC

10

NC11+3.3V12GND13+2.5V14+1.2V

15

PSYNC16DE17D718D6

19

D520D421D322D223D124D0

25

CLK26SDA27SCL

28

CVBS

TS[0..7]

模拟

TV(CVBS) TS流 TO HIDTV

Signal flow chart

Analog TV signal flow chart:

HDA005A Board Block Diagram

CVBS_OUTPUT

CVBS

S_Vide o

Y/Pr/P b1

Y/Pr/P b2

H
C
T

I

W

S

SVP-EX62

PC AUDIO

YPBPR1 AUDIO

YPBPR2 AUDIO

H
C
T

I

W

S

PC_HDTV AUDIO

THC63LVD103

LVDS OUTPUT

DEVICE

HiDT V - LX
SVP-EX62
TVP5147
Sil9011

TEA6415

I2C SLAVE ADDRESS

7Ch/7Dh

60h/68h
4Eh/4FhPCA9555
06h

PC IN

PC
AUDIO

HDMI

(HDCP)

1
V
T

g
o

l

a

n
A

FROM TUNER BOARD

Sil9011

I2S

HDMI_SPDIF

5
4
J

R

Ethernet

8051_BUS

TS1 bus

Other analog signal flow chart:

HDA005A Board Block Diagram

Y/Pr/P b1

Y/Pr/P b2

PC IN

PC
AUDIO

HDMI

(HDCP)

CVBS_OUTPUT

CVBS

S_Video

1
V
T

g
o

l

a

n
A

FROM TUNER BOARD

H
C
T

I

W
S

I2S

HDMI_SPDIF

Sil9011

SVP-EX62

5
4
J

R

Ethernet

PC AUDIO

YPBPR1 AUDIO

YPBPR2 AUDIO

8051_BUS

TS1 bus

68000 bus

512Kx8
Flash

68000 bus

512Kx8
Flash

Buttons

H
C

T

I

W

S

Buttons

1394/656

CAPD /IDE

TS1
TS2

PCI/FLASH/68K

FLASH

(16MB)

KEYPAD

Infrared

PC_HDTV AUDIO

THC63LVD103

1394/656

CAPD /IDE

TS1
TS2

PCI/FLASH/68K

FLASH

(16MB)

KEYPAD

Infrared

t
i
b

­4

I2C

HiDTV - LX

IR

ADC

I2C

HiDTV - LX

IR

ADC

GPIO

LVDS OUTPUT

GPIO

AnalogRGB

I2S/SPDIF

DDR

(8Mx16, 4 pcs )

AnalogRGB

I2S/SPDIF

DDR

(8Mx16, 4 pcs )

8051

8051

2

DOUT

MI

DOUT

MI

I2S

SPDIF

H

HDMI_SPDIF

Title

Schematict N am e Rev

Size

B

DEVICE

HiDT V - LX
SVP-EX62
TVP5147
Sil9011

TEA6415

C
T

I

W
S

KONKA HIDTV ATSC MAIN

Bloc k Diagram 00

Date:Sheet

Thursday, March 23, 2006

of

224

I2C SLAVE ADDRESS

7Ch/7Dh

60h/68h
4Eh/4FhPCA9555
06h

t
i
b

­4
2

I2S

SPDIF

H

HDMI_SPDIF

Title

Schematict N am e Rev

Size

B

C
T

I

W
S

KONKA HIDT V AT S C MAIN

Bloc k Diagram 00

Date:Sheet

Thursday, March 23, 2006

of

224

F

I
D
P

S

F

I
D

P

S

Digital TV signal flow chart:

CVBS_OUTPUT

CVBS

S_Video

Y/Pr/Pb1

SVP-EX62

Y/Pr/Pb2

SWITCH

HDA005A Board Block Diagram

PC AUDIO

YPBPR1 AUDIO

YPBPR2 AUDIO

PC_HDTV AUDIO

SWITCH

THC63LVD103

LVDS OUTPUT

DEVICE

HiDTV - LX
SVP-EX62
TVP5147
Sil9011
PCA9555
TEA6415

I2C SLAVE ADDRESS

7Ch/7Dh

60h/68h
4Eh/4Fh
06h

PC IN

PC
AUDIO

HDMI

(HDCP)

Sil9011

I2S

HDMI_SPDIF

Analog TV1

FROM TUNER BOARD

RJ45

Ethernet

HDMI signal flow chart:

8051_BUS

TS1 bus

68000 bus

512Kx8
Flash

Buttons

1394/656

CAPD/IDE

TS1
TS2

PCI/FLASH/68K

FLASH

(16MB)

KEYPAD

Infrared

8051

I2C

HiDTV - LX

IR

ADC

GPIO

DOUT

AnalogRGB

I2S/SPDIF

MI

24-bit

I2S

SPDIF

HDMI_SPDIF

DDR

(8Mx16, 4 pcs)

Title

Schematict Name Rev

Size

KONKA HIDTV ATSC MAIN

Block Diagram 5

B

224

of

Date:Sheet

SPDIF

SWITCH

Monday, December 05, 2005

Y/Pr/Pb1

Y/Pr/Pb2

CVBS_OUTPUT

CVBS

S_Video

HDA005A Board Block Diagram

DEVICE

LVDS OUTPUT

HiDTV - LX
SVP-EX62
TVP5147
Sil9011
PCA9555
TEA6415

PC AUDIO

YPBPR1 AUDIO

YPBPR2 AUDIO

SWITCH

SVP-EX62

PC_HDTV AUDIO

SWITCH

THC63LVD103

I2C SLAVE ADDRESS

7Ch/7Dh

60h/68h
4Eh/4Fh
06h

PC IN

PC
AUDIO

HDMI

(HDCP)

Sil9011

I2S

HDMI_SPDIF

Analog TV1

FROM TUNER BOARD

RJ45

IC BLOCK DIAGRAM

1 U15
(HiDTV)

Ethernet

8051_BUS

TS1 bus

68000 bus

512Kx8
Flash

Buttons

1394/656

CAPD/IDE

TS1
TS2

PCI/FLASH/68K

FLASH

(16MB)

KEYPAD

Infrared

8051

I2C

HiDTV - LX

ADC

IR

GPIO

DOUT

AnalogRGB

I2S/SPDIF

MI

24-bit

I2S

SPDIF

HDMI_SPDIF

DDR

(8Mx16, 4 pcs)

Title

Schematict Name Rev

Size

KONKA HIDTV ATSC MAIN

Block Diagram 5

B

224

of

Date:Sheet

SPDIF

SWITCH

Monday, December 05, 2005