Akai LCT2662 Service Manual

SERVICE MANUAL

Model:

LCT2662

Safety Instructions
Features & Specifications
Block Diagram
Wiring Diagram
Disassembly
Schematic & Component Diagrams
Bill of Material
Pin Descriptions
Exploded View Diagram

This manual is the latest at the time of printing, and does not
include the modification which may be made after the printing,
by the constant improvement of product.

I. Safety Instru ctions

CAUTION

RISK OF ELECTRIC SHOCK

DO NO T OPEN

The l ightning fla sh w ith arro whead symb ol,
within an equilateral triangle, is intended to alert
the user to the presence of uninsulated “dangerous
voltage” within the prod uct’s enclosure that may
be of sufficient magnitude to constitute a risk of
electric shock to persons.

CAUTIO N: TO REDUCE THE RISK OF ELECTRIC
SHO CK, DO NOT REMOVE COVER (OR BACK). NO
USER-SERVI CEABLE PART S INSIDE. REFER
SERVICING TO QUALIFI ED SERVICE PERSONNEL
O NLY.

PRECAUTIONS DURING SERVICING

1. In a ddition to safety, other parts and assemblies are
speci fied for conformance with such regulations as
those applyi ng to spurious radiation. These must
also be replaced only with specified replacements.
Exampl es: RF converters, tuner units, antenna
selection switches, RF cables, noise-blocking
capacitors, noise-bl ocking filters, etc.

2. Use sp ecified internal Wiring. Note especially:

1) Wires covered with PVC tubing

2) Do uble insulated wires

3) Hig h voltage leads

3. Use specified i nsulating materials for hazardous
live pa rts. Note especially:

1) In sulating Tape

2) PVC tubing

3) Spa cers (insulating barriers)

4) Insulating sheets for transistors

5) Plastic screws for fixing micro switches

4. When replacing AC primary side compo nents
(tran sformers, power cords, n oise blocking
capacitors, e tc.), wrap ends of wires securely about
the te rminals before soldering.

5. Make sure that w ires do not contact heat generating
parts (he at sinks, oxide metal film resistors, fusible
resistors, etc.)

6. Check if replace d wires do not contact sharply edged
or po inted parts.

7. Make sure that foreign objects (screws, solder
drop lets, etc.) do not remain insi de the set.

MAKE YOUR CONTRIBUTION TO PROTECT THE
ENVIR ONMENT

Used batteries with the ISO symbol
for recycling a s well as small
accumu lators (rechargeable batteries), mini-batteries
(cell s) and starter batteries should not be thrown
into the garbage can.
Please leave them at an appropriate depot.

The excla mation po int wi thin a n equilateral
tri angle is intended to a lert th e user to the
presence of important operating and maintenance
(servici n g) instr u ct i o n s i n th e liter a tu re
accompanying the appliance.

W ARNING:

Before servicing this TV receiver, read the X-RAY
RADIATION PRECAUTION, SAFETY INSTRUCTION
and PRODUCT SAFETY NOTICE.

X-RA Y RADIATION PRECAUTION

1. Excessively high can prod uce potentially hazardous
X-RAY RADIATION. T o avoid such hazards, the high
volta ge must not exceed the specified limit. The
normal va lue of the high voltage of this TV receiver
is 2 7 KV at zero bean current (minimum brightness).
The high voltage must not exceed 30 KV under any
circu mstances. Each time when a re ceiver requires
servici ng, the high voltage should be checked. The
readi ng of the high voltage is re commended to be
reco rded as a part of the service record, It is
important to u se an accurate and reliable high
voltage meter.

2. The only source of X-RAY RADIATION in this TV
receiver is the picture tube. For con tinued X-RAY
RADIATION protectio n, the replacement tube must be
exactly the sa me type as specified in th e parts list.

3. Some parts in this TV receiver have special safety
related characteristics fo r X-RADIATION protection.
For continued safety, the parts replacement should
be under taken only afte r referring the PRODUCT
SAFETY NOTICE.

SAFETY IN STRUCTION

The se rvice should not be attempted by anyone
unfamiliar with the ne cessary instructions on this TV
receiver. The fo llowing are the necessary instructions
to be ob served before servicing.

1. An isolation transformer shoul d be connected in the
power li ne between the receiver and the AC line
when a service is performed on the primary of the
conve rter transformer of the set.

2. Comply wi th all caution and safety related provided
on th e back of the cabinet, inside the cabinet, on the
chassis or p icture tube.

3. T o avoid a shock hazard, always discharge the
pictu re tube's anode to the chassis g round before
removi ng the anode cap.

- 2 -

4. Completely discharge the high potential voltage of the
picture tube before handli ng. The picture tube is a
vacuum and if bro ken, the glass will explode.

5. When rep lacing a MAIN PCB in the cabinet, always
be certai n that all protective are installed properly
such as control knobs, adjustment co vers or shields,
barri ers, isolation resistor networks etc.

6. When se rvicing is required, observe the original lead
dressing. Extra precau tion should be given to assure
correct lead dressing in the high voltage area.

7. Keep wires away from high voltage or high te mpera
ture components.

8. Befo re returning the set to the customer, al ways
perform an AC leaka ge current check on the exposed
meta llic parts of the cabinet, such as anten nas,
termin als, screwheads, metal overlay, control shafts,
etc., to be sure the set is safe to operate without
danger of electrica l shock. Plug the AC line cord
directly to the AC outlet (do not use a line isolation
transformer d uring this check). Use an AC voltmeter
havin g 5K ohms volt sensitivity or more in the
following manner.
Conne ct a 1.5K ohm 10 watt resistor paralleled by a

0.15µF AC type capacito r, between a good earth
ground (water pipe, conductor etc.,) and the exposed
metallic parts, one at a time.
Measure the AC vol tage across the combination of
the 1 .5K ohm resistor and 0.15 uF capacitor. Reverse
the AC p lug at the AC outlet and repeat the AC
volta ge measurements for each exposed metallic
part.
The me asured voltage must not exceed 0.3V RMS.
This correspo nds to 0.5mA AC. Any value exceeding
this limit constitutes a potential shock hazard and
must be corrected immediately.
The resistance measurement should be done
betwe en accessible exposed metal parts and power
cord plug prongs with the power switch "ON". The
resi stance should be more than 6M ohms.

PRODUCT SA FETY NOTICE

Many e lectrical and mechanical parts in this TV
receiver have special safety-related characteristics.
These characteristics are offer passed unnoticed by
visual spection and the protection afforded by them
cannot necessari ly be obtained by using replacement
compon ents rates for a higher voltage, wattage, etc.
The replacemen t parts which have these special
safety characteristics are identified by marks on
the schematic diagram and on the parts list.
Before replacin g any of these components, read the
parts list in thi s manual carefully. The use of
substitute re placement parts which do not have the
same safety characteristics as specified in the parts
list may cre ate shock, fire, X-RAY RADIATION or
other h azards.

Good earth ground
such as the water
pipe, conductor,
etc.

AC Leak age Current Check

AC VOLTMETER

Place this probe
on eac h e x­pos ed metallic
part

- 3 -

V

FEATURES

●POWER SUPPLY:AC 90~264V 50/60Hz

●MULTI TV SYSTEM:NTSC M

●MULTISTANDARD SOUND PROCESSORS:,BTSC+SAP

●MULTI VEDEO SYSTEM:PAL/NTSC/SECAM

●VERSATILE INPUT SOURCES:

TV,AV1,AV2,S-VIDEO,YCbCr,YPbPr,DVI,PC(ANALOG)

●FULL FUNCTION REMOTE CONTROLLER

●EXCELLENT SOUND EFFECT WITH VOLUME,TRABLE, BASS, BALANCE,

AVC ADJUSTABLE, AUDIO MODE, SPACIAL EFFECT, EQUALIZER

●SMART SOUND & PICTURE MODE SET:
PERSONAL,CINEMA, SPEECH, MUSIC; STANDARD,PERSONAL,BRIGHT,

MILD

●ADAPTIVE 2/4 LINE COMB FILTER FOR PAL/NTSC

●VTR FOR WEAK AND DISTORETED SIGNAL FROM VIDEO TAPE

RECORDER

●AUTOMATICALLY TURN OFF THE SET WHEN SIGNAL ABSENT LONGER
THAN 10 MINUTES

●216 CHANNELS

●BLUE SCREEN DISPLAY

●CC / V-CHIP

●FREEZE PICTURE

●PROGRAM LABEL

●SLEEP

●SCREEN SIZE CHANGE

●STANDBY

●CHANNEL SWAP

●VOG PIP (AT PC 1280X768/60Hz, TV WIDE FORMAT)

GENERAL SPECIFICATION:
PART1:TV SET

POWER CONSUMPTION
TV RECEIVE SYSTEM

VIDEO SYSTEM

ISION INTERMEDIATE
FREQUENCY
INTER-CARRIER FREQUENCY

180Watt（ MAX.）

≤ 3Watt(STBY)
NTSC M
MULTI PAL/ SECAM/ NTSC

45.75MHz

CHROMA IF FREQUENCY

CHANNELS RECEIVED

TUNING MODE

AV IN/OUT SPECIFICATION

ANTENNA INPUT IMPEDANCE

OSD LANGUAGE

AUDIO OUTPUT POWER
LED INDICATORS
HAND SET POWER SUPLY

4.5MHz(BTSC)

42.17MHz

USA 216 Channel
(AIR 2-83 Channel)

(CATV(STD IRC HRC) 1-134

Channel)
PLL SYSTEM

1 AV1 IN,1 AV2 IN,1 S-VIDEO IN

YCbCr IN, YPbPr IN AV IN/OUT

1 AV OUT
Y/C IN -Y：1.0±0.2V

C:0.7 V

P-P

75Ω

VIDEO IN----1.0 ±0.2V

P-P

P-P

75Ω

75Ω

AUDIO IN----Approx,500mV
VIDEO OUT----1.0±0.2 V

P-P

75Ω

AUDIO OUT----Approx,400mV
RGB IN : ≤0.7 V

P-P

75 OHM

ENGLISH/SPAINISH/ GERMAN /

FRENCH PORTUGUES/

NOTE: The OSD language has only 5 language.

6Wx2 (1KHz, 0.5Vrms, 10%THD)

Continue shine POWER ON

Flash standby
BATTERY 1.5V （AAA）x2

PART2:PC RESOLUTION

ANALOG RGB IN 0.7 V

RESOLUTION V.Feq.(Hz) h.Feq.(Hz) GRAPHIC MODE

640X480 59.940 31.469 VGA

800X600 60.317 37.879 VGA

1024X768 60.004 48.363 VGA

1280X720 59.870 47.776 VGA

P-P

PART3:PANEL

Brand & Model CHIMEI/V270W1-L03
Resolution 1280X720
Displayable Colour 16.7MHz
Surface Hard Coating + Anti-Radiation
Viewing Angle (H/V) 170° (Hor) / 170° (Ver)
Display Response Time 25ms
Contrast Ratio 1:600
Brightness 550nit
Aspect 16;9
Lamp Life 50,000Hrs
Bad Pixel Quality (Bright/Dark/Total) 2/6/8

7654321

Block Diagram

8

U6

TELETEXT CCD/VCHIP

EEPRAM

D

U4

TUNER

AV IN

S_VIDEO IN

YCrCb

U24

VIDEO

SCART

C

PC

YPrPb

B

SWITCH

U3

SYNC

U10

SWITCH

DVI

VIDEO

DECODER

U11

ADC

U1

DAC

U7U8

UC

U14

BUFFER

U9

SDRAM

DEINTERLACER

U18

UB

BUFFER

U21

SWITCH

I2C

U5

EEPRAM

FLASH MEMERY

U17

CPU/SCALER

UD

RESET

U2

BUFFER

UE

AMP

LVDS

U19

LCD PANEL

D

C

B

A

TV AUDIO

AV AUDIO

SCART AUDIO

HDTV AUDIO

POWER

1 2 3 4 5 6 78

24VDC

11----20VDC
5VDC
5VDC_SB
3VDC_SB

STAND BY

AUDIO

DECODER

POWER

AMP

A

7654321

Wiring Diagram

OVCC CVCC PVCC AVCC

97

18

D

AVCC

R1

96

EXT_RES

510R

DVI1

DATA2/4_SHLD

DDC_DATA

C

B

VCC

DATA1/3_SHLD

H_PLUG_DET

DATA0/5_SHLD

CLK_SHLD

DVI

IC1

VIN3VOUT

LT1117-3.3V

SHELL1

DATA2­DATA2+

DATA4-

DATA+

DDC_CLK
A_VSYNC

DATA1­DATA1+

DATA3­DATA3+

+5V

GND

DATA0­DATA0+

DATA5­DATA5+

CLK+
CLK-

A_RED

A_GREEN

A_BLUE

A_HSYNC

A_GND

SHELL2

1

GND

31

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

25(C1)
26(C2)
27(C3)
28(C4)
29(C5)

32

47uF/16V

GSCLV
DDCDV

DVC1

L2

2

112

22uH

L3

2

C2

C1

0.1

22uH

L4

22uH

L5

22uH

GSCLV
DDCDV

7,9

3,7,9

9

OVCC

PVCC

AVCC

CVCC

OVCC OVCC OVCC OVCC OVCC CVCC CVCC CVCC

C11

C12

C13

0.1

0.1

0.1

DIGSEL

PD

C14

0.1

CVCC

R2

1K

R187
0

C15

C16

0.1

0.1

R10
1K_NS

90

RX0p

91

RX0m

85

RX1p

86

RX1m

80

RX2p

81

RX2m

93

RXCp

94

RXCm

100

OCK_INV

4

PIXS

1

DFO

7

STAG_OUT

3

ST

9

PDO

2

PD

99

RSVD

CVCC

C17

C18

C19

0.1

0.1

0.1

OVCC578OVCC457OVCC343OVCC229OVCC1

OGND119OGND228OGND345OGND458OGND576GND15GND239GND368PGND98AGND179AGND283AGND387AGND489AGND5

82

6

VCC367VCC238VCC1

PVCC

U1

AVCC495AVCC388AVCC284AVCC1

8

SCDT

10

QE0

11

QE1

12

QE2

13

QE3

14

QE4

15

QE5

16

QE6

17

QE7

20

QE8

21

QE9

22

QE10

23

QE11

24

QE12

25

QE13

26

QE14

27

QE15

30

QE16

31

QE17

32

QE18

33

QE19

34

QE20

35

QE21

36

QE22

37

QE23

49

QO0

50

QO1

51

QO2

52

QO3

53

QO4

54

QO5

55

QO6

56

QO7

59

QO8

60

QO9

61

QO10

62

QO11

63

QO12

64

QO13

65

QO14

66

QO15

69

QO16

70

QO17

71

QO18

72

QO19

73

QO20

74

QO21

75

QO22

76

QO23

ODCK

DE
VSYNC
HSYNC

CTL1
CTL2
CTL3

92

SII161

R11

44
46
47
48

40
41
42

RP1

RP3 47

RP2 47

RP4

RP5 47

RP6 47

1

1

GB0

47

GB1
GB2
GB3
GB4
GB5
GB6
GB7
GG0
GG1
GG2
GG3

47

GG4
GG5
GG6
GG7
GR0
GR1
GR2
GR3
GR4

47

R12

T2

1

T1

2

GR5
GR6
GR7

R13 47_NS

T3

GCLK

GFBK

6,7,8

GVS

GRAPHIC

47

DVI-DE

8

D

C

B

A

AVCC AVCC AVCC AVCC AVCC PVCC PVCC

C3

C4

C5

0.1

0.1

1 2 3 4 5 6 78

0.1C80.1C90.1

C7

0.1C60.1

A

7654321

8

D

C

CN14

1
2
3
4
5

TVVIN

GND

BLANKING

GND

TV-AUDIO

TV-VIN

BLANKING

D

C

CON6

B

CN12

CON6

R28 0

AV2_L

6

SD

5

R41 0

AV2_R

4

SL

3

SD

2

SR

1

RCA1

1
2
3

B

A

A

1 2 3 4 5 6 78

7654321

8

CON5 is for LCD control (J24's) supplement,

D

PWCS0#

11

CLK

VCC

PWD0

3

PWD1
PWD2
PWD3
PWD4
PWD5
PWD6
PWD7

MEM_BUS

9,10

2D

7

3D

8

4D

13

5D

14

6D

17

7D

18

8D

74HC374

1D

4

GND

1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
OE

C

U2

VDD

20

2
5
6
9
12
15
16
19
1
10

MUTE

R38

R39

R40

LCDON
BKLON
PD

LVDSON

680R

680R
0

11
11
4,9

12

DIGSEL

LED1

GREEN

LED2

DIODE

MUTE

DIGSEL

CN5

1
2

CON2

BUF-HS

BUF-HS

22R

R36

C25

2.2K

22P

7

R34

U3

1
2
3
4
5
6
7 8

74hc14a

7

HSYNC

R35

BUF-VS

7

BUF-VS

1

22R

C26

R37

22P

2.2K

VFF

14
13
12
11
10
9

VSYNC

7

D

C

RCA1

1,7,9

VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC

DDCD

2

D1

K

R29
10K

7

DDCC

D2

R30
10K

7,1 7,1 7,1

RED

D3

GREEN

D4

BLUE

D5

BUF-HS

D6

R44
2K

BUF-VS

D7

R14

2

SAGND

1

R45
2K

0

R184 10K

AV2-IN

VIN4

YSOG

AV2-IN

AV2-IN
VIN4

YSOG

1
2
3
4
5
6
7

U21

0Y

2Y

YOUT

3Y

1Y

INH

VEE

VSS8B

VDD

XOUT

CD4052

VCC

VCC

C234

16

0.1

15

2X

14

1X

13
12

0X

11

3X

10

A

9

DEN
DDEN
DVI-DE

A

A

B1

B1

3

B

1

A

BAV99L

BAV99L

BAV99L

BAV99L

BAV99L

BAV99L

BAV99L

R223
10K

R225
10K

B

VIN YSOG

R224
10K

A

A

1 2 3 4 5 6 78

7654321

VAA

VAA

R64

R62

D

C62

R59

100

4.7

RST1#

4.7

1

R204

L42
FB

VAA

100

GND GND

VAA

GND

0

R202

5.6K

R205
22K

C208
100uF/16V

R66

VAA

VOUT

VOUT

VINHS

VINVS

SDA
SCL

RST1#

C246

OUT

GND

2

VOUT

4

C

+12

L41
FB

3

C249
100uF/16V

IC9
7805

IN

B

A

5.6K

R63
22K

GND GND

R203

47

Q2
9014

R206
470

4,6,8,9

C20

C244

0.1

0.1

V33VT

47

Q3
9014

C63

R60
470

R207

R209 1K

0.1

470

VID_BUS

R80

24K

C60
20pF

R61

CVBS0

12.000M

SCL
SDA

X2

VAA

C38 is the bypass cap for Q1

C64

0.1

GND

470

SCL
SDA

VINVS
VINHS

C21

CVBS0

0.1

C61
20pF

Q1

R232
10K

9015

R208

5.6K

RST1#

VAA

CCVIN

VINHS
VINVS

SDA
SCL

R73 10K

GND GND

49

SCL

50

SDA

37

VSYNC

36

HSYNC

23

CVBS0

24

CVBS1

25

FILT

26

IREF

42

XO

41

XI

40

XGND

43

RESET

28

TEST

9

ADC0

10

ADC1

11

ADC2

12

ADC3

R65

0_NS

13
14

15

10

11

31

7

5

4

6

1

VDDA

22

V33VT

GNDA

U7

VIDEO

HS_IN
VS_IN

SDA
SCL

SEN
PREF

SMS
ASEL

VSSA

Z86229

39

U8

VDDC

13

GNDC

44

VDDP

38

SDA_NV
SCL_NV

GNDP

GREEN

CSYNC

GREEN

FRAME

BLUE

VDS
RED

BLUE

PWM

PW7
PW6
PW5
PW4
PW3
PW2
PW1
PW0

P0_7
P0_6
P0_5
P0_4
P0_3
P0_2

P1_5
P1_4
P1_3
P1_2
P1_1
P1_0

COR

VDD
SDO

RED

BOX

VAA

C65

0.1

GND

VAA

GND

12

16

GND

18

2

3

17

C67

8

R75

9

LPF

5264

6.8K

C77

35

34
33
32

1
30

8
7
6
5
4
3
2

21
20
19
18
17
16

R210 10K

52
51
48
47
46
45

29
27

15

DA

14

CL

GND

C78

6.8nF

C54

0.1

R31
10K

R192

R67 470

R193

R68 470

R194

R69 470

D13

IN4148

68nF

V33VT

0.1

470

470

470

R32

10K

V33VT

D14

IN4148

R196

R198

R200

GND

C71

75

R74

R76

75

GND

470

470

470

U6

5

6
7

8

SDA

SCL
TEST

VCC

GND

A2
A1

A0

24C16

33pF

C72

0.22

V-RED

C69
33pF

C73

0.22

C70
33pF

C74

0.22

4

3
2

1

V-RED

V-GRN

V-GRN

V-BLU

V-BLU

V-BOX

V-BOX

C75
33pF

VDD V33VT

L8
FB

U26 bypass cap

C80

100uF/16V

8

D

C

C22

0.1

B

A

1 2 3 4 5 6 78

7654321

8

VOUT

5

VOUT

RST1#

RST1#

5,6,9,10,11

SDA

S-CIN
S-YIN
SAGND
SAGND
SAGND
SAGND
SAGND
SAGND
SAGND

HD-Y1

HD-Y

HD-Pb1
HD-Pb

HD-Pr1

HD-Pr

AV-IN
SAGND

S-VIDEO1

5

X

2

GND

X

2

GND

X

2

GND

CON9

Y

Y

Y

SCL

1
2
3
4
5
6
7
8
9

D

CN3

2
1

CON2

C

B

A

SDA

SCL

SCL

14

15

13

VIN3

SCL

SDA

VIN2

CIN

VIN1

VIN4

Y2/G2

U2/B2

V2/R2

Y1/G1
U1/B1
V1/R1
FBIN1

XTALI

XTALO

CLK560FPDAT58CLK2024ASGND7ASGND64GND11APGND25APVDD26PLGND30YGND35CGND46SPGND51AFGND65ISGND68ISGND77ISGND80I2CSEL

V-BLU

S-B

V-GRN

S-G

V-RED

S-R

RGB/V

V-BOX

V-BOX

R251 6.8K

R245
0_NS

R246
0_NS

R247
0_NS

YY

YCb

YCr

AV-IN

S-CIN

S-YIN

0.1

VDD

2

TV-VIN

VIN4

VIN4

R52 75

GND

R53 75

GND

R54 75

GND

GRN

BLU

YY YCb YCr YCb2 YY2 YCr2

R212

R214

10K

10K

U5

5
6

7
8

SDA

SCL
TEST

VCC

GND

RRED
V-BOX1

A2
A1

A0

R216
10K

4
3

2
1

3.3uH

3.3uH

L11

3.3uH

R71 1.2K

R218
10K

TGND

GND

YSOG

R220
10K

R56 75L9

R57 75L10

R55

C58
20pF

C59
20pF

R49 2K

R50 75

R51 75

R58 75

75

GND

R222
10K

C55
330pF

C56
330pF

C57
330pF

C255 0.22

X1

20.25M

C27

0.68

C28

0.68

C31
1nF

C29

0.68

C30

0.68
C37

0.22

C38

0.22

C39

0.22

C256 0.22

C254

0.22

74

73

71

72

75

5

4

6

2
1
3

79

62

63

2

TV-VIN

G

B

R

1

1

1

SDA

SCL

C53

24C16

1 2 3 4 5 6 78

C32
1nF

VDD

C36

0.22

10

12

VDD

VDDCAP9GNDCAP

RST#

70

VOUT

U4
VPC3230D

C44
47nF

R248 0_NS

R249

0_NS

R250

0_NS

S1A
S2A

S1B
S2B

S1C
S2C

S1D
S2D

IN
EN

VSS

GND

C33
1nF

16

VCC

PI5V330

GND

8 U24

GND

2
3

5
6

11
10

14
13

1

15

VDD +5

29

52

36

45

CVDD

YVDD

PLVDD

SPVDD

4

DA

7

DB

9

DC

12

DD

69

AFVDD

V-BOX1

GND

76

BLU

GRN

RRED

ISVDD

VCC is 5V power supply from the power socket VDD is 3.3V digital power supply, +5 is 5V
analog power supply for U1 VPC3230D; VTT is 5V power supply for U2 FI1256M K 2 (TV Tuner)

GND

D

C52

C

0.1

C35
1nF

B

59

VREF

78

VREF

66

VRT

VSTBY

FFIE

FFWE

FFRST

FFRE
FFOE

Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0

UV7
UV6
UV5
UV4
UV3
UV2
UV1
UV0

LLC2

LLC

AVO

HCLP

HS
VS

INTLC

TEST

VGAV

OE#

67

19
20
21
22
23

31
32
33
34
37
38
39
40

41
42
43
44
47
48
49
50

27
28
54
55
56
57
53

16

17
18

47

47

L38

11R/100MHZ

YCr2
YCr
YCb2
B
YCb

C42
47nF

RP7

RP8

U22

BY
BX
CY
C
CX
INH
VEE
VSS C

CD4053

GNDGND GND GND

L39

11R/100MHZ

VDD

AY
AX

C43

C45

47nF

10uF

VINY7

VINY6

VINY5
VINY4
VINY3
VINY2
VINY1
VINY0

VINCK

VHREF
VINHS

VINVS

VIODD

R

B

G

A

YY2

YY

A
B

R185 10K

公司名称

+5

(VSTBY)

C48

0.1

VDD

C47
10uF

GNDGND

VID_BUS

C49

0.1

+5

C40

0.22

R186 1K

C76

0.1

C46
10uF

VIDEO BUS

+12

Q9

9014

深圳市凯欣达电子有限公司

深圳市车公庙泰然工业区

5,6,8,9

C51

C50

0.1

0.1

C34

C41

1nF

0.22

S/Y

210栋三楼EF座

公司地址

图名

图号

绘制

文件名

当前时间

04-CODER.SCH

4

版本号

校对

30TV

当前日期

2

审核

A.1

2003.06.12

A

7654321

8

8

D

VID_BUS

4,5,8,9

C

1,7,8

GRAPHIC

B

GRAPHIC

VINY7
VINY6
VINY5
VINY4
VINY3
VINY2
VINY1
VINY0

VINCK
VINHS
VINVS

GR7
GR6
GR5
GR4
GR3
GR2
GR1
GR0

GG7
GG6
GG5
GG4
GG3
GG2
GG1
GG0

GB7
GB6
GB5
GB4
GB3
GB2
GB1
GB0

GCLK
GFBK
GVS

UCA
PW1230

23

VG7

22

VG6

21

VG5

20

VG4

18

VG3

17

VG2

16

VG1

15

VG0

38

VR7

37

VR6

36

VR5

35

VR4

33

VR3

32

VR2

31

VR1

30

VR0

25

PVCLK

26

CREF

28

PVHS

27

PVVS

9

VB7

8

VB6

7

VB5

6

VB4

4

VB3

3

VB2

2

VB1

1

VB0

13

SVCLK

11

SVHS

12

SVVS

UCB
PW1230

100

GR7

99

GR6

98

GR5

97

GR4

95

GR3

94

GR2

92

GR1

91

GR0

89

GG7

88

GG6

87

GG5

86

GG4

84

GG3

83

GG2

82

GG1

81

GG0

79

GB7

78

GB6

76

GB5

75

GB4

73

GB3

72

GB2

71

GB1

70

GB0

68

GCLK

66

GHS

67

GVS

UCC
PW1230

UCF
PW1230

142

DR7

141

DR6

139

DR5

138

DR4

136

DR3

135

DR2

133

DR1

132

DR0

130

DG7

129

DG6

128

DG5

127

DG4

125

DG3

124

DG2

122

DG1

121

DG0

119

DB7

118

DB6

117

DB5

116

DB4

114

DB3

113

DB2

111

DB1

110

DB0

102

R86

DCLK

R87 47

104

DHS

103

R88 47

DVS

108

R89

DENR

106

DENG

107

DENB

145

DEN

161

VREFI

162

VREFO

160

COMP

153

Y/GA

150

U/BA

156

V/RA

159

RSET

VXX VDD

123

140

175

205

235

VDD5VDD34VDD93VDD

VDD

VDD

VDD

VDD

PVDD14PVDD29PVDD42PVDD54PVDD64PVDD69PVDD80PVDD90PVDD

VSS19VSS49VSS77VSS

VSS

VSS

VSS

VSS

PVSS10PVSS24PVSS39PVSS46PVSS57PVSS65PVSS74PVSS85PVSS96PVSS

112

134

187

219

251

47

47

BGND

GPR7
GPR6
GPR5
GPR4
GPR3
GPR2
GPR1
GPR0

GPG7
GPG6
GPG5
GPG4
GPG3
GPG2
GPG1
GPG0

GPB7
GPB6
GPB5
GPB4
GPB3
GPB2
GPB1
GPB0

DDHS
DDVS
DEN

PW1230E

C81

0.1

BGND

C110

0.1

R92
316

101

RP9
47

RP10
47

RP11
47

RP12
47

RP13
47

RP14
47

L43 FB

DEN 9

+3.3

109

120

131

PVDD

PVDD

PVDD

PVSS

PVSS

105

115

126

DISPLAY BUS (G-PORT)DE-INTERLACED

UCD
PW1230

NVA13

218

MA13
MA12
MA11
MA10

MA9
MA8
MA7
MA6
MA5
MA4
MA3
MA2
MA1
MA0

MD15
MD14

MCLKFB

VXX

C82

0.1

VZZVYY +2.5 +3.3

197

199

DPAVDD

DPDVDD

MPDVDD58MPAVDD60ADDVDD

DPAVSS

DPDVSS

MPDVSS59MPAVSS61ADDVSS

196

198

MD13
MD12
MD11
MD10

MD9
MD8
MD7
MD6
MD5
MD4
MD3
MD2
MD1
MD0

MRAS#
MCAS#

MWE#
MCLK

149

148

R86

470

DDCK

PW1230E

143

165

180

200

PVDD

PVDD

PVDD

PVDD

PVSS

PVSS

PVSS

PVSS

137

147

171

189

PW1230C

7,8,9

208

216

224

230

237

243

249

256

PVDD

PVDD

PVDD

PVDD

PVDD

PVDD

PVDD

PVDD

PVSS

PVSS

PVSS

PVSS

PVSS

PVSS

PVSS

PVSS

PVSS

193

202

212

222

228

233

240

246

253

C83

0.1

163

166

ADAVDD

ADGVDD

ADAVSS

ADGVSS

164

167

NVA12

221

NVA11

220

NVA10

215

NVA9

217

NVA8

214

NVA7

211

NVA6

209

NVA5

206

NVA4

203

NVA3

204

NVA2

207

NVA1

210

NVA0

213

NVD15

254

NVD14

250

NVD13

247

NVD12

244

NVD11

241

NVD10

238

NVD9

234

NVD8

231

NVD7

232

NVD6

236

NVD5

239

NVD4

242

NVD3

245

NVD2

248

NVD1

252

NVD0

255

NVRAS#

225

NVCAS#

226

NVWE#

227

NVCLK

229

NVCLK

223

C84

C85

0.1

0.1

151

154

157

VYY VZZ

AVD33B

AVD33G

AVD33R

AVS33B

AVS33G

AVS33R

152

155

158

C86

0.1

NVA13
NVA11

R81

NVA12

NVA10
NVA9
NVA8
NVA7
NVA6
NVA5
NVA4
NVA3
NVA2
NVA1
NVA0

NVCLK

NVRAS#
NVCAS#
NVWE#

SDA
SCL

RST1#

C87

C88

0.1

0.1

0

R82
0

SDA
SCL

RST1#

BGND

R90

3.3K
R91

3.3K

21
20

35
22
34
33
32
31
30
29
26
25
24
23

38

18
17
16

39
15

C112

20pF

C89

0.1

PW1230 MEMORY BUS

VDD

BSL1
BSL0

VCC1VCC3VCC9VCC14VCC27VCC43VCC

A11
A10/AP
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0

CLK

RAS#
CAS#
WE#

UDQM
LDQM

VSS6VSS12VSS28VSS41VSS46VSS52VSS

VDD

X3

10MHz

C113
20pF

R191
10K

U9

146

201

R93

144

K4S641632C

40

2.2M

41

47
45

55

44
43

56

53
50
51
48
52

49

DQ15
DQ14
DQ13
DQ12
DQ11
DQ10

CKEN

54

UCE
PW1230

CGMS
MVE

XTALI

XTALO

SDA
SCL

RST#
CSA2

CSA1
TEST

TSTCLK

TRST#
TCK
TDI
TDO
TMS

DQ9
DQ8
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0

CS#

53
51
50
48
47
45
44
42
13
11
10
8
7
5
4
2

37
19

NVD15
NVD14
NVD13
NVD12
NVD11
NVD10
NVD9
NVD8
NVD7
NVD6
NVD5
NVD4
NVD3
NVD2
NVD1
NVD0

VDD

MCUA7
MCUA6
MCUA5
MCUA4
MCUA3
MCUA2
MCUA1
MCUA0

MCUD7
MCUD6
MCUD5
MCUD4
MCUD3
MCUD2
MCUD1
MCUD0

MCUCS#

MCUWR#

MCUCMD

MCURDY

G-PORT

7,8,9

D

C

177
176
174
173
172
170
169
168

186
185
184
183
182
181
179
178

190
191
192
188

B

BGND BGND BGND BGND

A

VDD +3.3 VDD

C90

C91

C92

C93

C94

C95

0.1

0.1

0.1

0.1

0.1

1 2 3 4 5 6 78

C96

0.1

0.1

+2.5

C97

C98

C99

C100

C101

C102

0.1

0.1

0.1

0.1

0.1

C103

0.1

0.1

BGND

C104

0.1

C105

0.1

C106

0.1

C107

0.1

C108

0.1

C109

0.1

A

7654321

8

VDD1

VEE

C116

0.1

C122

0.1

C123

0.1

GRAPHIC

C117

0.1

C125

0.1

GND

G-PORT

GRAPHIC

C118

0.1

C126

0.1

G-PORT

GND

VDD

A.1

C119

0.1

C127

0.1

C128

0.1

1,6,8

D

C

6,8,9

B

A

SDA
SCL

HD-Y
HD-Y

D

HD-Pb
HD-Pb

HD-Pr
HD-Pr

C

VGASEL

9
9

GCOAST

PW1230E

6,8,9

6

PW1230C

9

FLASHEN

B

DDCC

3

1,9

GSCL

A

DDCD

1,3,9

SDA
SCL

L12
HfFB

1

X

Y

R94

2

75

GND

GND

GND

GND

GSCL

L13
HfFB

1

X

Y

R95

2

75

GND

L14
HfFB

1

X

Y

R96

2

75

GND

VGA

10

5

15

9

4

14

8

3

13

7

2

12

6

1

11

DB15

DDCD

DDCC

VGASEL

GCOAST

PW1230E

PW1230 CLK & SYNCs

FLASHEN

VDD

DDCC

GSCL

GSDA( )

VDD

1 2 3 4 5 6 78

DDCD

PIN9

PIN9

R107

3.3K

R108

3.3K

R109

3.3K
R110

3.3K

VDD

GND

HD-Y

HD-Pb

HD-Pr

R97
10K

VGABI

VGAGI

VGARI

VGAHS
VGAVS

D8

DIODE

VDD

R104

3.3K

VGAHS

R105

3.3K

VGAVS

L16
HfFB

R98 75

9

GND

L17
HfFB

GND

L15 HfFB

GND

UAB
74LV126

UAD
74LV126

10

UAC
74LV126

8 9

6
5

7

8

R33
10k

D9

R99 75

R100
75

13

U13
24LC21A

4

SCL
SDA

VCLK
VCC

DIODE

56

1112

VGA-B

VGA-G

VGA-R

TXD

RXD

DDCEN

GND

NC

NC
NC

VCC

VSS

Bypass cap for U9

C114

0.1

GND

HD-Pr
VGA-R

HD-Y
VGA-G

HD-Pb

11

VGA-B

10

14
13

15

2 3

VDD

R118

8.2K

R111

Q4

3.3K

VDD

9014

4
3

2

1

C129

0.1

2
3

5
6

1

1

UAA
74LV126

C130

0.1

VSS

16

S1A
S2A

S1B
S2B

S1C
S2C

S1D
S2D

IN
EN

VCC

GND

DA

VCC

DB

DC

PI5V330

DD

GND

8 U10

R119
1K

C131

0.1

R116
200

R117
200

4

7

9

12

BUF-VS

C138

0.1

C139

0.1

RED

GREEN

BLUE

DVC1

VCC

RED

GREEN

BLUE

VDD

VEE VEE

C136

C132

3.9nF
R106

1,3

C133
47nF

1,3

C134
47nF

C137

1,3

1nF

C135
47nF

HSYNC

3

VSYNC

BUF-HS

1,3

GNDGND

1,3

1

3

11
10

12

9

4

5

R3

R4

GSCLV

DDCDV

C120

0.1

U12
MAX232A

C1P

C1M

TIN1
TIN2

ROUT1
ROUT2

C2P

C2M

3.3K

3.3K

D10

DIODE

D16

DIODE

C121

0.1

39nF

3.3K

VCC

GND

TOUT1
TOUT2

RIN1
RIN2

VM

R6 0
R7 10K

VFF

AVD26AVD27AVD39AVD42AVD45AVD46AVD51AVD52AVD59AVD62VDD11VDD22VDD23VDD69VDD78VDD

33

FILT

57

SDA

56

SCL

55

A0

54

RAIN

48

GAIN

49

SOGIN

43

BAIN

30

HSYNC

31

VSYNC

29

COAST

58

REFBYP

37

MIDSCV

38

CLAMP

GND1GND10GND20GND21GND24GND25GND28GND32GND36GND40GND41GND44GND47GND50GND53GND60GND61GND63GND68GND

GND

VCC

16

15

14
7

13
8

C140

0.1

2

VP

6

C141

0.1

R5

U23

0

24LC21A

6

5
7

8

VDD1

U11
AD9883A

PCRXD

PCTXD

4

GND

SCL
SDA

VCLK
VCC

3

NC

2

NC

1

NC

35

79

PVD34PVD

70

RED7

71

RED6

72

RED5

73

RED4

74

RED3

75

RED2

76

RED1

77

RED0

2

GRN7

3

GRN6

4

GRN5

5

GRN4

6

GRN3

7

GRN2

8

GRN1

9

GRN0

12

BLU7

13

BLU6

14

BLU5

15

BLU4

16

BLU3

17

BLU2

18

BLU1

19

BLU0

67

80

RXD
TXD

R112 47
R113 47

66
65

R114 47

64

R115 47

10

UBC
74LV126

13

UBD
74LV126

1

UBA
74LV126

2 3

4

UBB
74LV126

5 6

89

1112

DATCK

HSOUT

SOGOUT

VSOUT

PW1230E

DDCK

DDHS

DDHS GPFBK

DDVS

9
9

CN9

1
2
3

CON3

L44

GPCLK

GPSOG

GPVS

GCLK

GFBK

GHSSOG

GVS

RP15
47

RP16
47

RP17
47

RP18
47

RP19
47

RP20
47

VFF

C115

0.1

Bypass caps for U10 and U11

GR7
GR6
GR5
GR4
GR3
GR2
GR1
GR0

GG7
GG6
GG5
GG4
GG3
GG2
GG1
GG0

GB7
GB6
GB5
GB4
GB3
GB2
GB1
GB0

FB

VDD1

7654321

8

GRAPHIC

GRAPHIC

D

VDD1

C143

C142

0.1

0.1

Bypass caps for U27

GVS
GHSSOG
GFBK
GCLK

GR7
GR6
GR5
GR4

GR3
GR2
GR1
GR0

VDD1

47

1A1

46

1A2

44

1A3

43

1A4

1

1OE

41

2A1

40

2A2

38

2A3

37

2A4

48

2OE

36

3A1

35

3A2

33

3A3

32

3A4

25

3OE

30

4A1

29

4A2

27

4A3

26

4A4

24

4OE

C

42

VCC7VCC18VCC31VCC

U14

LVC16244

GND4GND10GND15GND21GND28GND34GND39GND

45

VDD1

2

1Y1

3

1Y2

5

1Y3

6

1Y4

GPVS

8

2Y1

GPSOG

9

2Y2

GPFBK

11

2Y3

GPCLK

12

2Y4

GPR7

13

3Y1

GPR6

14

3Y2

GPR5

16

3Y3

GPR4

17

3Y4

GPR3

19

4Y1

GPR2

20

4Y2

GPR1

22

4Y3

GPR0

23

4Y4

BUFFERED GRAPHIC BUS

VXX

VYY is 2.5V display PLL power supply of U7,
VZZ is 2.5V memory PLL power supply of U7,

VCC

42

GG7

47

GG6
GG5
GG4

VDD1

C155

C156

0.1

0.1

B

Bypass caps for U28

6,7,9

PW1230E

PW1230E

GG3
GG2
GG1
GG0

GB7
GB6
GB5
GB4

GB3
GB2
GB1
GB0

1A1

46

1A2
1A3
1A4

1OE
2A1

2A2
2A3
2A4

2OE
3A1

3A2
3A3
3A4

3OE
4A1

4A2
4A3
4A4

4OE

VCC7VCC18VCC31VCC

U15

LVC16244

GND4GND10GND15GND21GND28GND34GND39GND

44
43

1

41
40
38
37

48

36
35
33
32

25
30

29
27
26

24

GPG7

2

1Y1

GPG6

3

1Y2

GPG5

5

1Y3

GPG4

6

1Y4

GPG3

8

2Y1

GPG2

9

2Y2

GPG1

11

2Y3

GPG0

12

2Y4

GPB7

13

3Y1

GPB6

14

3Y2

GPB5

16

3Y3

GPB4

17

3Y4

GPB3

19

4Y1

GPB2

20

4Y2

GPB1

22

4Y3

GPB0

23

4Y4

L21
FB

L22
FB

L23
FB

(G-PORT)

IC2
LT1117

VIN3VOUT

G-PORT1,6,7 6,7,9

VYY

VZZ

+2.5

2

ADJ

1

R128
300

VXX is 2.5V core power supply of U7 (PW1230)

VADJ125

BGND

R129
300

C165
47uF/16V

L24
FB

BGND

C166
47uF/16V

VXX

+2.5VZZVYY

BGND

C167
47uF/16V

VXX

C168
100uF

D

C

B

45

A

A

A.1

1 2 3 4 5 6 78

4,5,6,8

6,7,8

D

C

B

A

11

1,7
1,3,7

VID_BUS
G-PORT

PWXI

C186
20pF

Clock generation circuit

VCC1

R131

6.8K
R132

470

IR input circuit

R56 may not be stuffed

GCOAST

7

VDD1 VDD1

R135

3.3K

SCL

I2C pull-up resistors

VLL is 1.8V core power for U15

RST#

RST1#

PWMOUT

GSCL
DDCD
SCL
SDA

R134
1K

IRIN

VIDEO BUS

G-PORT

PWXO

X4

14.318

R130

2.2M

C187
20pF

GCOAST

R136

3.3K

SDA

RST#

RST1#

PWMOUT

GSCL

SCL
SDA

DDCD

R227

3.3K

KEY1

C173

0.1

C174

0.1

C179

0.1

C180

0.1

C185

0.1

SDA
SCL
RST1#

MEM BUS

MEM_BUS
D-PORT

D-VS

8

D-HS

R1420R143

CN10

1
2
3
4

CON4

A.1

3,10
11,12

D

C

0

B

A

7654321

MEMORY BUS

KEY6

KEY7

DISPLAY PORT

VLL

C169

0.1

VLL

C170

0.1

VDD1

C175

0.1

VDD1

C176

0.1

VDD1

C181

0.1

VPP

C182

0.1

C171

0.1

C172

0.1

C177

0.1

C178

0.1

C183

0.1

C184

0.1

AGND

D17

DIODE

D18

DIODE

PWCS0#

198

199

CS1

DCLKn

SW
FLASHEN
VGASEL
PW1230E
A

PWNMI

193

CS0

DRO7
DRO6
DRO5
DRO4
DRO3
DRO2
DRO1
DRO0

DGO7
DGO6
DGO5
DGO4
DGO3
DGO2
DGO1
DGO0

DBO7
DBO6
DBO5
DBO4
DBO3
DBO2
DBO1
DBO0

DRE7
DRE6
DRE5
DRE4
DRE3
DRE2
DRE1
DRE0

DGE7
DGE6
DGE5
DGE4
DGE3
DGE2
DGE1
DGE0

DBE7
DBE6
DBE5
DBE4
DBE3
DBE2
DBE1
DBE0

DCLK

DHS
DVS
DEN

68

SCART

BLANKING

NMI

TXD
RXD

R228
1K

KBD_BUS

6,7,8

129
130
131
132
133
134
135
136

119
120
121
122
125
126
127
128

111
112
113
114
115
116
117
118

96
97
98
99
100
101
102
103

88
89
90
91
92
93
94
95

76
77
78
79
80
81
82
83

107
106
109
108
110

7
7

1
2
7

7

3

PWNMI 10

TXD
RXD

SCART
SW

FLASHEN

VGASEL

PW1230E

A

BLANKING

VDD1

11

DRO7
DRO6
DRO5
DRO4
DRO3
DRO2
DRO1
DRO0

DGO7
DGO6
DGO5
DGO4
DGO3
DGO2
DGO1
DGO0

DBO7
DBO6
DBO5
DBO4
DBO3
DBO2
DBO1
DBO0

DRE7
DRE6
DRE5
DRE4
DRE3
DRE2
DRE1
DRE0

DGE7
DGE6
DGE5
DGE4
DGE3
DGE2
DGE1
DGE0

DBE7
DBE6
DBE5
DBE4
DBE3
DBE2
DBE1
DBE0

GND
DCLK
D-HS
D-VS
D-EN

RP27
47

RP28
47

RP29
47

RP30
47

RP31
47

RP32
47

RP33
47

RP34
47

RP35
47

RP36
47

RP37
47

RP38
47

R133 470
R138 47
R139 47_NS
R140 47_NS
R141 47

CN13
CON2

1

2

VPP

ROMOE#

PWD15

PWD14

PWD13

PWD12

PWD11

PWD10

PWD9

PWD8

PWD7

PWD6

PWD5

PWD4

PWD3

PWA19

PWA18

PWA17

PWA16

PWA15

PWA14

PWA13

PWA12

PWA11

PWA10

PWA9

PWA8

PWA7

PWA6

PWA5

PWA4

PWA3

PWA2

PWA1

104

123

140

171

208

165

167

164

173

174

175

A19

A18

VDDP

VDDP

A17

VDD3

VDD3

VDD3

VDD3

176

A16

A15

177

178

179

A14

A13

A12

182A8183A7184A6187A5188A4189A3190A2191A1192

180

181

A9

A11

A10

148

149

150

D15

D14

154D8155D7156D6157D5158D4159D3160D2161D1162D0163

151

152

153

D13

D12

D11

D10

PWD2

D9

PWD1

PWD0

ROMWE#

194

195

196

197

RD

WR

ROMOE

ROMWE

U17
PW113

VSS3

VSS3

VSS3

VSSP

VSSP

TEST

EXTRST28RESET

XT_IN

XT_OUT

TRST

TCK

TMS

TDI

TDO

PORTA7

PORTA6

PORTA5

PORTA4

PORTA3

PORTA2

PORTA1

PORTA0

PORTB764PORTB663PORTB562PORTB461PORTB360PORTB259PORTB158PORTB057PORTC746PORTC645PORTC544PORTC443PORTC342PORTC241PORTC140PORTC039RXD67TXD

105

124

141

172

166

168

142

139

169

170

147

146

145

144

143

200

201

202

203

204

205

206

207

)GSDA(

AGND

R234

3.3K

RST#

PWXI

PWXO

PWMOUT

SDA

SCL

DDCD

GSCL

IRIN

B1

S/Y

KEY7

KEY6

KEY5

KEY4

KEY3

KEY2

RST1#

KEY1

KEYBOARD BUS

R183
1K

VDD116VDD137VDD165VDD184VDD1

VYUV7
VYUV6
VYUV5
VYUV4
VYUV3
VYUV2
VYUV1
VYUV0

VCLK
VHS
VVS
VPEN
VFIELD

GRE7
GRE6
GRE5
GRE4
GRE3
GRE2
GRE1
GRE0

GGE7
GGE6
GGE5
GGE4
GGE3
GGE2
GGE1
GGE0

GBE7
GBE6
GBE5
GBE4
GBE3
GBE2
GBE1
GBE0

GCLK
GHSSOG
GVS
GPEN
GFBK

GCOAST

VSS117VSS138VSS166VSS185VSS1

137

185

138

186

VDD1

VDD1

VDD329VDD352VDD372VDD386VDD3

VSS1

VSS31VSS330VSS353VSS373VSS387VSS3

VLL

56
55
54
51
50
49
48
47

71
75
74

VHREF

70

VIODD

69

GPR7

27

GPR6

26

GPR5

CN6

1
2
3

CON3

DDEN

Q16

9015

)GSDA(

GPR4
GPR3
GPR2
GPR1
GPR0

GPG7
GPG6
GPG5
GPG4
GPG3
GPG2
GPG1
GPG0

GPB7
GPB6
GPB5
GPB4
GPB3
GPB2
GPB1
GPB0

GPCLK
GPSOG

GPVS
DDEN
GPFBK

GCOAST

VDD1

R226 1K

R137

3.3K

25
24
23
22
21
20

19
18
15
14
13
12
11
10

9
8
7
6
5
4
3
2

31
33
32
34
35

36

1 2 3 4 5 6 78

7654321

8

MEM_BUS

3,9

D

C

B

A

MEMORY BUS

PWA19
PWA18
PWA17
PWA16
PWA15
PWA14
PWA13
PWA12
PWA11
PWA10
PWA9
PWA8
PWA7
PWA6
PWA5
PWA4
PWA3
PWA2
PWA1

ROMOE#
ROMWE#

RST#

FCE#

PWA2
PWA4
PWA6

PWA9
PWA11

PWA12
PWA14

PWA17
PWA19

ROMOE#
PWD15
PWD14

PWD5
PWD4

PWD3
PWD2
PWD9

JP1

VDD1

ICE#

IA20
IA21

IRP#

JMP

4
2

R233 0

U17 bypass cap

U16 bypass cap

JMP1

JMP

1
3

R149

3.3K

R150

3.3K

R151

3.3K

R152

3.3K

VDD1

14

13

37

16

A18

17

A17

48

A16

1

A15

2

A14

3

A13

4

A12

5

A11

6

A10

7

A9

8

A8

18

A7

19

A6

20

A5

21

A4

22

A3

23

A2

24

A1

25

A0

28

OE#

11

WE#

12

RST#

26

CE#

R148

3.3K

VPP

WP#

VCC

U18

29LV800D

PROMJET1
PROMJET

1
3
5
7

9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59

BYTE#

A-DQ15

DQ14
DQ13
DQ12
DQ11
DQ10

DQ9
DQ8
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0

A20/NC
A19/NC

RY/BY#

2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60

FVPP
FWP#

VDD1

47

PWD15

45

PWD14

43

PWD13

41

PWD12

39

PWD11

36

PWD10

34

PWD9

32

PWD8

30

PWD7

44

PWD6

42

PWD5

40

PWD4

38

PWD3

35

PWD2

33

PWD1

31

PWD0

29

10
9

15

27

VSS

46

VSS

FCE#

VDD1VDD1

PWA1
PWA3
PWA5
PWA7
PWA8
PWA10
IRP#
ICE#
PWA13
PWA15
PWA16
PWA18
IA20
IA21
ROMWE#

PWD7
PWD6
PWD13
PWD12

PWD11
PWD10

PWD1
PWD0PWD8

Short JP1 3-4 when writing flash

3

Short JP1 1-2 for write protect. For AMD single power flash,

1

this jumper is not used .

R144

3.3K
R145

3.3K

VDD1

C189

0.1

VDD1

VDD1

2

Short JP2 when using PROMJET or ICE ROM Emualtor,

4

open it when using flash normally.

VDD1

VDD1

C190

0.1

VDD1

SW3 NMI

C233

C232

D12
DIODE

0.1

47uF

R179

VDD1

SW1
NMI

C188

0.1

RNMI

R146

3.3K

RNMI

UDB
74ACT32

4
5

6

UDA
74ACT32

1

2

HD1

1
3

3

R153
200

2
4

R147

3.3K

PWNMI

RST#

PWNMI

RST#

HD2

0

R178
0_NS

D

9

C

B

A

1 2 3 4 5 6 78

7654321

8

KEY0
KEY2
KEY4
KEY6

KEY7
KEY5
KEY3
KEY1

KBD BUS

+12

C193

0.1

U18 bypass cap

+12 is 12V power supply

CN2

1
2
3

CON3

KBD_BUS

9

D

C

B

VDD1VDD1VDD1VDD1VDD1VDD1VDD1VDD1

D

VDD1

KBD1
KBD

1

2

3

4

5

6

7

8

9

10

R158
10K

R159
10K

R160
10K

R161
10K

R162
10K

R163
10K

R164
10K

R165
10K

+12

84

R169
10K

UEA
LM358

3
2

R168
10K

1

BKLIGHT1

R188
2K

VCC

BKLIGHT

R190
300R

C250

R154

R171
3K

510

Q7
T3904

R48
2K

100uF/16v

R155
0

R46
2K

R47

UDC
74ACT32

9

10

8

MOSFET1
MOSFET P

11223

R170
2K

Q5
9014

2K

R166
10K

C192

0.1

PWMOUT

C

R167
10K

VDD1

C196
47uF/16V

D11
1N4148

B

9
3

3

PWMOUT
BKLON

LCDON

PWMOUT
BKLON

LCDON

3

+12

M5V

LCDVCC

C195

0.1

R172

3.3K

C194

0.1

R173

3.3K

Q6
9014

Q8
J279

C197

1000uF/16v

A

A

1 2 3 4 5 6 78

7654321

8

9,11

D-PORT

D

VDD VOO VNN

C198

C199

C204

0.1

C200

0.1

0.1

C205

0.1

0.1

C

Bypass caps for U20

C203

0.1

Bypass caps for U21

B

VOO is 3.3V LVDS power for U20 and U21,

A

C201

0.1

AGND AGND

VNNVOOVDD

C206

0.1

AGNDAGND

C207

0.1

C202

0.1

DRE1
DRE2
DRE3
DRE4
DRE5
DRE6
DRE7

DGE0
DGE1
DGE2
DGE3
DGE4
DGE5
DGE6
DGE7

DBE0
DBE1
DBE2
DBE3
DBE4
DBE5
DBE6
DBE7

D-HS
D-VS
D-EN

DCLK

DRO0
DRO1
DRO2
DRO3
DRO4
DRO5
DRO6
DRO7

DGO0
DGO1
DGO2
DGO3
DGO4
DGO5
DGO6
DGO7

DBO0
DBO1
DBO2
DBO3
DBO4
DBO5
DBO6
DBO7

D-HS
D-VS
D-EN

DCLK

CON30

DISPLAY PORT

TTL1

DRO1

1 2

DRO3

3 4

DRO5

5 6

DRO7

7 8
9 10

DGO1

11 12

DGO3

13 14

DGO5

15 16

DGO7

17 18
19 20

DBO1

21 22

DBO3

23 24

DBO5

25 26

DBO7

27 28
29 30

D-HS D-EN

31 32

DCLK

33 34
35 36

HEADER 18X2_NS

DRE1
DRE3
DRE5
DRE7

DGE1
DGE3
DGE5
DGE7

DBE1
DBE3
DBE5
DBE7

TTL2

112
334
556
778
9910
111112
131314
151516
171718
191920
212122
232324
252526
272728
292930
313132
333334
353536

HEADER 18X2_NS

DRO0
DRO2
DRO4
DRO6

DGO0
DGO2
DGO4
DGO6

DBO0
DBO2
DBO4
DBO6

D-VS

DRE0

2

DRE2

4

DRE4

6

DRE6

8
10

DGE0

12

DGE2

14

DGE4

16

DGE6

18
20

DBE0

22

DBE2

24

DBE4

26

DBE6

28
30
32
34
36

LCDVCC

D

C

B

A

9,12

LVDSON

VDD

3

LVDSON

32

9

26

51

R0

52

R1

54

R2

55

R3

56

R4

3

R5

50

R6

2

R7

4

G0

6

G1

7

G2

11

G3

12

G4

14

G5

8

G6

10

G7

15

B0

19

B1

20

B2

22

B3

23

B4

24

B5

16

B6

18

B7

27

HSYNC

28

VSYNC

30

ENABLE

25

CNTRL

31

CLOCK

VCC1VCC

U19
DS90C383A

R/F

GND5GND13GND21GND29GND

17

VCC

53

VDD

32

9

26

51

R0

52

R1

54

R2

55

R3

56

R4

3

R5

50

R6

2

R7

4

G0

6

G1

7

G2

11

G3

12

G4

14

G5

8

G6

10

G7

15

B0

19

B1

20

B2

22

B3

23

B4

24

B5

16

B6

18

B7

27

HSYNC

28

VSYNC

30

ENABLE

25

CNTRL

31

CLOCK

VCC1VCC

U20
DS90C383A

R/F

GND5GND13GND21GND29GND

17

VCC

53

PWDN

LVDSON

PWDN

OUT0
OUT0

OUT1
OUT1

OUT2
OUT2

OUT3
OUT3

CLKOUT
CLKOUT

LVDSVC

LVDSGD
LVDSGD
LVDSGD

PLLVCC

PLLGND
PLLGND

OUT0
OUT0

OUT1
OUT1

OUT2
OUT2

OUT3
OUT3

CLKOUT
CLKOUT

LVDSVC

LVDSGD
LVDSGD
LVDSGD

PLLVCC

PLLGND
PLLGND

TXE0PDRE0

47

TXE0M

48

TXE1P

45

TXE1M

46

TXE2P

41

TXE2M

42

TXE3P

37

TXE3M

38

TXECP

39

TXECM

40

VOO

44

36
43
49

AGND

VNN

34

33
35

AGND

TXO0P

47

TXO0M

48

TXO1P

45

TXO1M

46

TXO2P

41

TXO2M

42

TXO3P

37

TXO3M

38

TXOCP

39

TXOCM

40

VOO

44

36
43
49

AGND

VNN

34

33
35

AGND

LVDS BUSDISPLAY PORT

TXE3P
TXE3M

TXECP
TXECM

TXE2P
TXE2M

TXE1P
TXE1M

TXE0P
TXE0M

LCDVCC

TXE3P
TXE3M
TXECP
TXECM
TXE2P
TXE2M

TXE1P
TXE1M

TXE0P

TXE0M

TXO3P

TXO3M

TXOCP

TXOCM

TXO2P
TXO2M

TXO1P

TXO1M

TXO0P

TXO0M

+5V

CON1

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

CON2

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

CON30_NS

1 2 3 4 5 6 78

7654321

8

D

C

J28' and J28" are supplementary power sockets

B

VCC

L26
FB

L27
FB

IC4
LT1085CM

VIN3VOUT

GND

1

POWER1

8
7
6
5
4
3
2
1

CON8

VSS

+5

VDD

2

VCC

M5V

+12

L32
FB

1 2

L36
FB

V33VT

VDD

VSS +5

C209
47uF/16V

GND

VCC1

VDD

C220
100uF

C219
470uF

V33VT

VDD

VCC1

C223
470uF

C224
470uF

VCC +12

C210
47uF/16V

GND

VDD1

C225

C226

100uF

100uF

VDD

C217
100uF

C124
470uF

VCC

C221
470uF

VCC1

CN11

VDD1

VNN

L33
FB

VOO

L34
FB

+3.3

L37
FB

C218
100uF

CON3

+12VCC

C222
470uF

1
2
3

GND

C212
47uF/16V

GND

C213
47uF/16V

+3.3VOOVNN

GND

VCC1

C214
47uF/16V

IC5
LT1117

R174
300

IC7
LT1117

VIN3VOUT

IC8
LT1117

VIN3VOUT

VIN3VOUT

ADJ

1

V125ADJ

ADJ

1

ADJ

1

VFF is 3.3V analog power for U10

2

R175
680

VLL is 1.8V core power of U15,

L31
FB

2

VEE is 3.3V PLL power for U10

L35
FB

2

VPPVLL

GND

C215
47uF/16V

C231
100uF/16V

L29
FB

CK3 is the decoupling cap for VLL,

VPPVLL

L30
FB

VEEVEEVCC1

C211
47uF/16V

GND

VFFVFFVCC1

C216
47uF/16V

GND

D

C

B

A

1 2 3 4 5 6 78

A

0.1UF50V

0.1

1000UF10V

0.1

CN5,CN8
HDR1X10

CN6
HDR1X8

HDR1X2
CN4

CN7
HDR1X5

CN3
HDR1X3

6

OUT 24V/5A

GND
GND

+5
+5
+5
+5

+11~16V
+11~16V

+5

G
GND

+11~16V
+11~16V
GND
GND
+5

+5

+3.3

GND

D

C

B

A

C49

3300UF35V

R37
100K

Q11

R48
1K

1000UF10V

R49
1K

Q17

54321

L17
5UH

GND

C51

5UH

L14

C44,C45

2200UF25V

L15

10UH3A

C59,C60

10UH1A

1000UF10V

L16

L11
5UH

1000UF10VU6LM1085IT-3.3

SB

5UH8A

C46

1000UF10V

CN2

2200uF25V

C44

L13

C41

C42

0.1

C60

C50

3300UF35V

C58

C55

0.1

C53

1000UF10V

C56

C45

Q13

R44

1.5K

Q4
2N5551

R61
10K

2N5551

C62 221/1KV

R36

4.7K

R35
1K

R54
10K

L8
5UH

C32,C35

25V/2200uF

C27

0.1

U4

47UF/16V

R63
1K

Q16
2N5551

D10

MBR20200

R56 10K

C24
0R

R28

4.7K

3300UF/35V

U5

TL431ACLP

+5V

C40

25V/2200uF

R39

5.1K

C56

R64
10K

L12
5UH/5A

C61,47

C31

104

Q9
MTP50P03HD

R46

5.1K

R43
2K

2N5551

R65

2K

R34

6.2K

Q14

R38

51K

2N5401

2N5551

D2

MUR480E

L4

400UH2A

D

C5

105/400V

RS606

D1

RT1

8OH5A

L1

C

B

A

20mH3A

C3

20mH3A

2200P

CN1

5A500V

0.22UF275V

C1

2200P

C54

L2

C4 0.68UF/275V

R60

RV1

2.2M 1/4W 5W

1 2

10D471

L3

磁珠500欧

FU1

3.15A/250V

C11

SW1

R1

1K

D5

1N4007

100UF25V

C4

U2

8

7

6

5

MBR1100

C10

0.01

R2

R9

0.51 5W

R8

D7

D6

0.1UF400V

C6

0.22

12K

NCP1203P60

1N5819

D3

MUR860T

Q1

FQP18N50

R14

1M

D4

R15

1N4148

1M

8

MC33260D

1

C8

1000PF

1

2

3

4

10

C9

150pf1kv

R3

10

47

7

U1

2

L4

47k

6

3

磁珠500欧

C12

0.1

5

4

C16

103 1KV

68UF450V

FQP7N80

R12

1K

R11

C13

47K

101

L5

磁珠500欧

C7

R31

0R

15V 1/2W

C64

U3

R17
68K5W

10

R21

D13

100UF25V

104/50V

58

R33

100P

1

2

3
6

5

D11
MBR1100

R10

R18

C18

100uF450v

FR107

R25

C22

100P

.

10

MTP50P03HDL

2K

10UF50V

47UF/25V

100UF/450V

L7

C28

ZD2

磁珠500欧

C28

100uf25v

NCP1377DR2

14

C25

R27

CA1

10K

100P

C20

D8
MUR180E

Q4

C15

150P1KV

R13

0.51/5W

300

10

Q3

100R

T1

C19

D9

C17

R26

47K

1N4148

R19
10

R7

15V 1/2W

D18

11,129,107,8

4
5

R23
10

C23

103/1KV

MUR180E

ZD1

MBR20100

D12

Q2

R16
47K

0.24/5W

5UH

C33，C36

25V/2200uF

PH1

PC817B

PC817B

STW12NK80Z

C26

2200P

R20

68K/5W

R24

L9

C21

150p1kv

25V/2200uF

PH2

T2

1

9101112

R53
1K/1W

C30

PH3

D17

MBR20100

R30

100_NS

1K
R22

1K

R29

C37

2200PF200V

R55

PC817B

Q12
MTP50P03HD

R41

5.1k

R42

1K

+5V

Q15
2N5401

47R2W

TL431ACLP

R62

5.1K

2

3
4

6

.

C29

2200P

C43

333_NS

IN:AC 100V-240V

1 2 3 4 56

VHH

C56

1000uF

VHH

8

C57

1000uF

VHH

C58

1000uF

D

7654321

CN1

1
2
3
4

470uF/16V

CON4

D

VHH

L2

VCC1

FB

CN2

3

C1

C3

0.1

CON3

2
1

IF
AGND
TV_AUDIO

CN6

CON2

2
1

AGND4

CON2

2
1

CN7

AV-IN

TV_VIN
AGND3

CN10

CON6

SL
AGND
SR
SCART_L
AGND
SCART_R

CN3

CON2

2
1

6
5
4
3
2
1

CN5

AGND

4

MUTE
AGND

VCC1 VCC

RST1#

3

SCL

2

SDA

1

CON4

L4
FB

VHH

R9
3K

IC1
LT1117

VIN3VOUT

ADJ

1

V125ADJ

VBB

L3
FB

2

R10
560R

VHH

5

VHH

C43

1000uF

TV_AUDIO

C

B

A

PHO

CON3

C41

VCC

IF

C2
100pF

R1
1K

C14

C13
56pF

C15

SDA
SCL

RST1#

R24
10K

R2 1K

C4

0.33

C5

0.33

HD-AR

0.33

0.33

VBB

AGND1

R3
10K

R25
10K

C8

0.33
C9

0.33
C10

0.33
C11

0.33

C49
100uF/16V

HD-AL

PC-AR
PC-AL

C6
C7

R22

10K

R23

AV-AR

10K

AV-AL

SR

SL

AGND

PL

PR

TV_AUDIO

PR
PL

SCART_R
SCART_L

3
2
1

VCC

56pF

56pF

67

ANA_IN1+

68

ANA_IN-

69

VCC

C28

0.1

ANA_IN2+

60

MONO_IN

0.33

57

SC1_IR

56

SC1_IL

54

SC2_IR

53

SC2_IL

51

SC3_IR

50

SC3_IL

48

SC4_IR

47

SC4_IL

73

TP

74

AUD-CL_OUT

77

D_I/O1

78

D_I/O0

80

STANDBYQ

79

A-SEL

4

12S_CL

5

12S_WS

7

12S_I1

17

12S_I2

6

12S_DO

8

ADR_DA

9

ADR_WS

10

ADR_CL

3

SDA

2

SCL

21

RESET

DVSS14DVSS15DVSS16AVSS61AVSS62AHVSS43AHVSS44VREF135VREF226ASG49ASG52ASG

C55

100uF/16V

C12

R26
10K

Q5
9014

R27
10K

VCC1 VBB

DVSUP11DVSUP12DVSUP13AVSUP65AVSUP

AGND1AGND1

L-R

TV_VIN

66

39

AHVSUP

CAPL_M

CAPL_A

XT_OUT

SC1_OR

SC1_OL

SC2_OR

SC2_OL

DACM_R

DACM_L

DACM_S

DACA_R

DACA_L

VREF-T
AGNDC

AGND1

C59

100uF/16V

XT_IN

TEST

U1

VBB

X1

DACM-R

DACM-L

VCC

R12
220R

C16
10uF

C17
10uF

C22
20pF

C23
20pF

C21
10uF
C34

0.1
C47

4.7
C35

0.1

AGND1

RST1#

Q6

9014

C60

TV_VIN1

100uF/16V

DACM-R

DACM-L

VHH

R32
2K

D1

IN4148

VOL-R

VOL-L

C51

470u/16V

R31

5.1K

R33
1K

C26
1nF

C27
1nF

AGND1

40

38

72

18.432

71

36
37

33
34

27

28

30

24

25

58

45
70

3450

55

R28

1K

R4
10K

VCC

C18
10uF

The bypass caps for U5. DVSUP, AVSUP and AHVSUP pin each has 3 caps.

R18
47K

R19

47K

Q4 9015
R29
10K

Q8
9014

C29

0.1uF/16V

C30

0.1uF/16V

R21

R20

47K

47K

R13

3K

R30

3K

Q7
9014

C31

0.1

AMPIN-L

AMPIN-R

C61
220uF

R34

100R

Q1
9014

C37
470pF

VHH

R7
10K

R8
10K

VCC1 VBB

C52

1.5nF

22uF

C48

Q3
9014

R6

3.3K

12

10
13

11

8

6
9

5

C42
220uF

C19
10uF

U2

IN1+
IN2+

IN3+
IN4+

MODE2

MODE1
CIV

SVR

470uF

C32

0.1

VHH

VCC13VCC2

SGND

7

16

OUT1+

OUT2-

OUT4+

OUT3-

GND2

GND1

C38
470pF

MUTE

C36

0.1

C53

1.5nF

1

4

17

14

15

2

CON6

C40

0.1

C20
10uF

R351KR361KR371KR38

CN8

CN9

1K

A.1

C39

1
2

1
2

AGND1

CON2

CON2

470pF

C54

1.5nF

C

B

A

C33

0.1

1 2 3 4 5 6 78

7654321

8

D

C

CN1
M5
TUNER

L1
10uH

C2

0.1

C1

100u/16V

+5V

AGND

B

C4

100u/16V

VTT

AGND

112233445566778899101011111212131314

C3

0.1

SCL
SDA

TV-VIN

SCL
SDA

VTT +5VGND

TV-VIN

14

TV-AUDIO

IF

+5V
SCL
GND
GND
SDA
IF

GND
TV-VIN
TV-AUDIO

1
6
2
7
3
8
4
9
5

DB9

D

C

B

A

A

1 2 3 4 5 6 78

Disassembly

In case of trouble, etc., Necessitating disassemble, please disassemble in the order shown in the
illustrations.
Reassemble in the reverse order.

1. Removal of the Back Cover

2. Removal of the MAIN PCB
a. Remove the screws.

.

b

Slide out the LCD chassis slightly; pull up the connector of AC cord from PCB; pull up the

PCB from LCD.

LCD

c

. Remove the Anode cap from The picture tube. To avaid a shock hazard, be sure to discharge

.

d

Take out the LCD chassis.

MAIN PCB

AUDIO PCB

POWER PCB