Xoceco TJ-2768 Schematic

COLOR TELEVISION

TJ# series

TJ2768
TJ2778

TJ306

America

CONTENTS

Safety precautions………………………………………………………………………..…
Alignment instructions. ………………………………….………..…………………….…
Working principle analysis of the unit……………………………….………….………….
Block diagram………………………………….. ……………………………………….…………
IC block diagram………………………………………………………………………..……
Wiring diagram ……………………………………………………………..……………...
Troubleshooting……………………………………………………………………………..……
Schematic diagram. ………………………………………………………………………..

1
3
10
11
12
18
19
21

Attention: This service manual is only for service personnel to take reference with. Before

servicing please read the following points caref ully.

Safety precautions

After the original service problem has been cor rected, a check should be made of the f ollowing:

FIRE & SHOCK HAZARD

1. Be sure that all components are positioned in such a way as to avoid possibility of adjacent
component shorts. This is especially important on those chassis, which are transported to and from
the repair shop.

2. Never release a repair unless all protective devices such as insulators, barriers, covers, shields,
strain reliefs, and other hardware have been reinstalled per original design.

3. Soldering must be inspected to discover possible cold solder joints, frayed leads, damaged
insulation (including A.C. cord), 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, and replace if
necessary follow original layout, lead length and dress.

5. No leads or components should touch a receiving tube or a resistor rated at 1 watt or more. Lead
tension around protruding metal surfaces must be avoided.

6. All critical components such as fuses, flameproof resistors, capacitors, etc. must be replaced with
exact factory types. Do not use replacement components other than those specified or make
unrecompensed circuit modifications.

7. After re-assembly of the set always perform an A.C. leakage test on all exposed metallic parts of
the cabinet, (the channel selector knob, antenna terminals, handle and screws) to be sure the set is
safe to operate without danger of electrical shock. Do not use a line isolation transformer during
this test. Use an A.C. voltmeter, having 5000 ohms per volt or more sensitivity, in the following
manner: connect a 1500ohm 10watt resistor, paralleled by a 0.15uF. 150V A.C. type capacitor
between a known good earth ground 9water pipe, conduit, etc. and the exposed metallic parts, one
at a time. Measure the A.C. voltage across the combination of 1500ohm resistor and 0.15uF
capacitor. Reverse the A.C. plug and repeat A.C. voltage measurements for each exposed metallic
part. Voltage measured must not exceed 0.75 volts R.M.S. This corresponds to 0.5 milliamp A.C.
Any value exceeding this limit constitutes a potential shock hazard and must be corrected
immediately.

GRAPHIC SYMBOLS:

It is intended to alert the service personnel to the presence of uninsulated dangerous
voltage that may be of sufficiently magnitude to constitute a risk of electric shock.

It is intended to alert the service personnel to the presence of important safety
information in service literatur e.

X-RADIATION

Too excessive voltage will cause harmful X-ray. To avoid this radiation hazard, the high voltage
should fall within the limitation. The appliance works at AC 120V, 60Hz. The high voltage of zero

1

beam current should be within 35KV on condition that the main power(B+) voltage is DC140V . And it
should not exceed 36KV in any condition.

1. Be sure procedures and instructions to all service personnel cover the su bject of X-rays in current
TV is the picture tube. However, this tube does not emit X-rays when the high voltage is at the
factory specified level. The proper value is given in the applicable schematic. Operation at higher
voltages may cause a failure of the picture tube or high voltage supply and, under certain
circumstances, may produce radiation in excess of desirable levels.

2. Only factory specified C.R.T. anode connectors must be used. Degaussing shields also serve as
X-ray shield in color sets. Always re-install them.

3. It is essential that the serviceman has available an accurate and reliable high voltage meter. The
calibration of the meter should be checked periodically against a reference standard. Such as the
one available at your distributor.

4. When the high voltage circuitry is operating properly there is no possibility of an X-radiation
problem. Every time a color chassis is serviced, the brightness should be run up and down while
monitoring the high voltage with a meter to be certain that the high voltage does not exceed the
specified value and that it is regulating correctly. We suggest that you and your service or ganization
review test procedures so that voltage regulation is always checked as a standard servicing
procedure. And that the high voltage r eading be recorded on each customer s invoice.

5. When troubleshooting and making test measurements in a receiver with a problem of excessive
high voltage, avoid being unnecessarily close to the picture tube and the h i gh v oltage compartment.
Do not operate the chassis longer than is necessary to locate t he cause of excessive voltage.

6. Refer to HV, B+ and Shutdown adjustment procedures described in the appropriate schematic
and diagrams. Too excessive voltage will cause harmful X- r ay.

IMPLOSION

1. All direct viewed picture tubes are equipped with an integral implosion protection system, but
care should be taken to avoid damage during installation. Avoid scratching the tube. If scratched,
replace it.

2. Use only recommended factory replacement tubes.

TIPS ON PROPER INSTALLATION

1. Never install any receiver in closed-in recess, cubbyhole or closely fitting shelf space over, or
close to heat duct, or in the path of heated airflow.

2. Avoid conditions of high humidity such as: Outdoor patio installations where dew is a factor. Near
steam radiators where steam leakage is a factor, etc.

3. Avoid placement where draperies may obstruct rear venting. The customer should also avoid the
use of decorative scarves or other coverings which might obstruct ventilat ion.

4. Wall and shelf mounted installations using a commercial mounting kit, must follow the factory
approved mounting instructions. A receiver mounted to a shelf or platform must retain its original
feet(or the equivalent thickness in spacers) to provide adequate are flow across the bottom, blots or
screws used for fasteners must not touch and parts or wiring. Perform leakage test on customized
installations.

5. Caution customers against the mounting of a receiver on sloping shelf or a tilted position, unless
the receiver is properly secured.

6. A receiver on a roll-about cart should be stable on its mounting to the cart. Caution the customer
on the hazards of trying to roll a cart with small caster s acr oss t hresholds or deep pile carpets.

2

Alignment instructions

1. General instructions

1.1 The program data should be copied into the EEPROM (N802 M24C16) in this set according to
Standard Sample program data, then execute “Factory Adjustment”. If adopt empty EEPROM,
please preset I2C datum before any debugging.

1.2 If ther e is no special not ice, the unit adjustment should be done on the following conditions:
a. AC power 120V/60Hz.
b. Pre-heat the set for above 30 minutes.

1.3 There is a auto-degaussing circuit inside which could degauss the set automatically within one
second after turn on the power. The auto-degaussing circuit effects on condition that every interval
of turning on the set is longer than 30 minutes at least.

1.4 The magnetized CRT will influence the colour purity and focus. When the inside degaussing
circuit can’t degauss thoroughly then an outside degausser is necessary. Colour purity and focus
adjustment should be executed according to the colour purity and focus adjusts procedures if the
colour purity and focus is not good.

2. Alignment items and procedure

a) B+ voltage check
b) OSD character center adjustment
c) AFT and RFAGC voltage adjustment
d) Focus adjustment
e) Screen-grid voltage adjustment
f) White balance adj ust ment
g) Horizontal and vertical scanning centre and amplitude adjustment
h) Raster correction adjustment
i) HDTV white balance adjustment
j) HDTV Horizontal and vertical scanning centre and amplitude adjustment
k) HDT V raster correction adjustment

Adjustment flow-chat is shown as Fig-1

3

E2PROM copy

High voltage check

B+ voltage

OSD position

AFT adjustment

AGC adjustment

Focus

Screen-grid voltage and w hite

balance adjustment

Centre of scanning amplitude and

raster adjustment

X-ray protection check

Filament voltage

SELF CHECK

Picture parts

Sub-brightness

White balance

Colour purity and convergence

Stereo check

Video/S-VHS/DVD

Check

Auto adjustment

The unit and remote
Control function

Fig-1 Adjustment flow-chart

3. Factory mode adjustment

3.1 Enter factory mode adjustm ent
Press the “factory menu” butt on on t he r emote control, the screen display the factory menu.

3.2 factory menu operation method
Press the channel +/- button to selection the sub menu of factory menu, and press the vol+/- to
enter the sub menu or setting the value.

3.3 exit the factory menu
Press the MENU button again and again; it can exit the factory menu.

4

4. Adjustment methods

4.1 B+ voltage adjustment
a. Be sure the voltage AC 120V/60Hz.
b. Connect the digital voltmeter to TP3 and GND of B+ test point, input the US-7 signal, set the

picture control to “standard”, adjust RP501 to let the B+(test point) voltage 140V+/ - 0.3V

c. In the STAND BY t urn off, B+ voltage about 20V

4.2 OSD position adjustment
In the factory menu, select SYS SETTING sub menu, adjust OSD H-POS item, let the character
position to screen display center.

4.3 AFT adjustment
a. IF of tuner (TUNER101) output and TP6 are separate.
b. Input 45.75MHz of frequency and 90db of amplitude signals to TP6
c. Adjust the tunable inductance L110, and measure between the TP4 and GND voltage, until the

TP4 voltage to be 2.5V.

d. Output pin IF of TUNER101 and TP6 bonding pad is normal.

4.4 AGC voltage adjustment
a. Receive 60db split field signal
b. Adjust the potentiometer RP101, and measure the TP5 to GND voltage, until the voltage of TP5

to be 3.5V, t hen noise wave of t he pict ur e point disappears.

4.5 focus adjustment
a. Receive A28 signal, set the picture mode to standar d.
b. Adjust focus potentiometer of FBT, until the B area display best.

4.6 Screen-grid voltage and white balance adjustment
a. Receive US-7 split field signal, the picture mode to “warm”.
b. In the factory menu, select the W HITE BALANCE SETTING menu, fixed the CUT OFF R and

adjust the CUT OFF G and the CUT OFF B, until the white balance is norm al.

c. Select t he color and contrast to 0, select the brightness to 50 in the user menu. In the factory

menu, select the LUMINANCE SETTING menu; adjust the Brightness min, until the back level
voltage about 180V. Adjust the SCREEN potentiometer, until rightmost of gray of the US-7
picture up and down separate.

d. Select the color to 0, the brightness to 50 and the contrast to 100 in the user menu, adjust the

Contrast max, until the eight level g r ay amplitude Vp-p to 100V.

e. Select the color to 0, the brightness and the contrast to 100 in the user menu, adjust the

BRIGHTNESS max, until low right back color of the D-8 picture does not white.

f. In the factory menu, select the WHITE BALANCE SETTING sub menu; adjust the white balance

(color temperature to 12000K+/- 8MPCD, the color coor dinat e to 0.270+/-0.008, 0.283+/-0.008).

4.7 Horizontal and vertical scanning centre adjustment of TV

4.7.1 Horizontal center adjustment
Receive A6 signal, the picture mode to “STANDARD” in the factor y menu, select Horizontal

setting menu, adjust the H PO S, until the picture H-center and screen center accord.

4.7.2 Vertical center adjustment
Receive A6 signal, the picture mode to “STANDARD” in the factory menu, select Vertical

setting menu, adjust the V PO S, until the picture V-center and screen center accord.

4.8 Vertical scanning adjustment
Receive A12 signal, the picture mode to “STANDARD” in the factory menu, select Vertical setting

5

menu, adjust the V SIZE, until up and down over scanning of the picture to 8% of the all screen.

4.9 Raster correction and horizontal amplitude adjust ment of TV
Receive white grid of NTSC signal, the picture mode to “STANDARD” in the factory menu, select
horizontal setting menu, adjust the PCC, until the raster distort least, adjust the H SIZE, until r ight
and left over scanning of the picture t o 8% of the all screen.

4.10 If the scanning line distortion and raster geometric distortion dissatisfy condition, you can
adjust the factory menu item

SCOR
CCOR
PCAC
PCC
KEYST
PARAL
TCC
BCC

4.11 O utput the max sound of power

Receive the US-7 signal; adjust the volume to max, check the sound power output no less than 2 x
6W.

4.12 White balance and Horizontal and vertical scanning centre and amplitude adjustment of HDTV

The unit has the YPBPR terminal; it can display the HDTV sig nal
Support the HDTV and TIMING of the VG 848 format.

When th e whit e bal an ce ad ju stm ent , t he p ict ur e mod e to STANDARD i n the us er m ode. W hen The
H-V scanning adjustment, set the H-CENTER, H-amplitude, V-CENTER and V-amplitude to 0 in the
user menu.

4.12.1 YPbPr input (480p signal)

a. Whit e balance adj ustment
Input eight level gray of 480p format signal to HDTV YPbPr terminal, the picture mode to
ST ANDARD.
In the factory menu, select the WHITE BALANCE SETTING menu; adjust the white balance (color
temperature to 12000K+/-8MPCD, the color coordinat e t o 0. 270+/-0.008, 0.283+/-0.008).
b. H-CENTER adjustment
Input white grid of 480p format signal to HDTV YPbPr terminal, t he picture mode to STANDARD.
In the factory menu, select Horizontal setting menu, adjust the H POS, until the picture H-center and
screen center accord.
c. V-CENTER adjustment

S-Correction
C-Correction
Pin C ushion Asymmetry Correction
Pin Cushion Correction
Keystone Correction
Parallelogram Correction
Top Corner Correction
Bottom Corner Correction

Support input signal of YPbPr

Signal form at TIMING of the VG848 format

480I 950
480P 978
576I 969

576P 979
1080I/60Hz 972
720P/60Hz 976
1080P/60Hz 970

6

In the factory menu, select Vert ical setting menu, adjust the V POS, until the picture V-center and
screen center accord.
d. V-SCANNING adjustment
In the factory menu, select Vertical setting menu, adjust the V SIZE, until up and down over
scanning of the picture to 8% of the all screen.
e. Raster correction and horizontal amplitude adjustment
Receive white grid of NTSC signal, the picture mode to “STANDARD” in the factory menu, select
horizontal setting menu, adjust the PCC, until the raster distort least, adjust the H SIZE, until right
and left over scanning of the picture t o 8% of the all screen.
f. If the scanning line distortion and raster geometric distortion dissatisfy condition, you can adjust
the factory menu item

SCOR
CCOR
PCAC
PCC
KEYST
PARAL
TCC
BCC

4.12.2 YPbPr input (1080I/60Hz format signal)
Adjustment mode to 4.12.1

5. Check point

5.1 check the high voltage
a. Check the second anode and GND connect to the high voltmeter
b. Receive US-7 signal, the picture mode to STANDARD, measure the high voltage to

30.0KV+/-1KV.

c. The brightness and contrast t o m in value, while measure the high voltage no more than 35KV.

5.2 check the CRT Filament voltage
Receive the US-7 signal, the picture mode to STANDARD item, measure the CRT filament voltage
to be 6.3+/-0.2Vrms.

5.3 Check the X-ray protection
a. Receive the US-7 signal, the picture to STANDARD item.
b. Connect TP1 to TP2 point of short circuit; X-ray protection cir cuit must be operation.

5.4 Check the picture part

5.5 Check the sub-brightness

5.6 Check chromatic purity and converge

5.7 Check the VIDEO and audio input/out put

5.8 Check the unit and the remote control function

6. Ex-factory pre-setting

7. Check the supply power (AC 100V-140V/60Hz)

S-Correction
C-Correction
Pin Cushion Asymmetry Correction
Pin Cushion Correction
Keystone Correction
Parallelogram Correction
Top Corner Correction
Bottom Corner Correction

7

APPX: horizontal and vertical scanning adjustment diagram

8

9

Working principle analysis of the unit

The unit is digital frequency conversion processing of 16bit bus control color television, it adopt high
integrity digital processing chip EX-11 of TRIDENT, this chip has a A/D conversion, decoder and
scaler. The MCU is 16bit parallel processor M16C of RENESAS.
The unit adopt frequency composition tuner, it can direct display frequency point of every channel.
The decoder chip have digital comb filter, Y/C processing clean separation, chroma signal and
non-crosstalk brightness signal. It adopts three 10bit A/D and D/A conversion to reality of the picture.
The unit working a singles horizontal frequency, it has two YPBPR terminal inputs and support
multi-high definition format (1080i60, 720p, 1080p and so on), it have picture freeze, dynamic digital
code noise reduction, picture edge enhance, PULL-DOWN, 16:9 mode, timing turn off, rotate, CCD
and V-CHIP functions and so on,
The audio processing adopt application specific IC M61519 of MITSUBISHI, it supports stereo,
treble-bass volume control, volume balance, surround sound and over-bass sound functions and so
on. The unit has two AV inputs, an S terminal input, two YCRCB/YPBPR terminal inputs and a video
output.
The RF signal send to compose tuner TUNER101, its pin11 output 38M of IF signal. After the signal
via pre-intermediate frequency amplifier circuit V101, it sends to the picture SAWF Z102 and sound
SAWF Z101, their are co ntain two filter of single PAL and NTSC, i t be contr olled high-low level of the
pin 75 of MCU output (the pin59 of main board X701). The Z101 output sends to the pin8 of
N101(LA7566) and Z102 output sends to the pin5 and pin6 of N101. The N101 supports PAL and
NTSC system, it be controlled high-low level of MCU (N707, M16C/30620SPGP) output. The level
define as follow:

System X701-pin55 X701-pin53 X701-pin51 X701-pin49

DK (6.5M) 0 1 1 0

I (6M) 1 0 0 1

BG (5.5M) 1 1 0 1

M(4.5M) 0 0 0 0
Note: 1-high level, 0-low level
The pin13 of tuner output video, the video send to the digital chip N700(EX-11). It have VIDEO, two
AV input, S terminal input and two YCRCB/YPBPR input, it through matching circuit to N700. After it
via bus control and digital processing to pin37, pin39 and pin41 of X701 socket output R, G and B
signal (peak value to 0.8V) and the pin 48 and pin48 output V-SYNC and H-SYNC. The V-SYNC
and H-SYNC send to deflection chip N302(STV9118), the pin26 of N302 output H-signal drive the
V301(2SC5422) and H-deflection coil of picture tube. The pin24 of N302 output EW signal for raster
geometry adjustment. After the R, G and B signal of digital board send to the pin1, pin3 and pin5 of
pre-video amplifier N801(STV9211) form pin14, pin16 and pin18 output to CRT board. The N401 of
CRT board to R,G,B signal amplify to peak value(about 100V), it send to c athode of the pictu re tube.
The SIF of the SAWF output send to stereo decoder NS01(LA72700), then it output L/R of audio.
The L/R audio of TV, AV/S input and YCRCB/YPBPR input send to sound processor N601(M61519).
Through BUS control of N707 to select processing of N601 signal channel, the pin25 and pin18 of
N601 output L/R audio send to N602 (TA8256BH), the pin8 and pin12 of N602 output L/R audio
drive speaker. In the mute state, the N707 send high level to the pin5 of N602, but the power
amplifier without signal.

10

0

bPr1YPbPr2

t
R

N

Block diagram

LA72700

I2C

NS01

SIF

N101

IF

LA7566

Clamp
Blanking
R
G
B

I2C

L/R

N801
PRE-VIDEO
AMP.

STV9211

I2C

N707

CPU

M16c/30620SPGP

AV ou

AV2

L

L

I2C

2

I

R

C

L

SOUND PROCESSING

R

G

B

R

N601

M61519

BOARD

LM2423

DDY
STV9118

ROM
24C16

L

CRT

302

YP

R

AV1/S

L

STEREO DECODER

AVOUT-V

TUNER

AV1(video)/Y

C

AV2(video)

YPbP

r1

SOUND SAWF

PICTUR SAWF

Z1

N700
ND decodor, scaler
Trident
EX-11

2

CVBS

YPbP

r2

I2C

EMST
16161

EMST
16161

R

L

R

R
G
B

SOUND
AMP.
TA8256

CRT

H-AMP
2SC5422

V-AMP
LA78041

L

11

IC block diagram

1. LA7566

10: AFT output 19: SIF output
9: AGC output 1: TV audio output
5, 6: picture IF input 13: TV video output
8: sound IF input 3: 9V

12

2. EX-11

185: S-C input 187: Pb2 input
196: AV1-V/S-Y input 180: Pr2 input
197: AV2-V input 14: SCL
198: TV-V input 16: SDA
200: Y1(PbPr) input 190, 191: AVOUT-V output
186: Pb1 input 28: B output
179: Pr1 input 29: G output
202: Y2(PbPr) input 30: R output
34: H-SYNC output 31: VM output
37: V-SYNC output 9, 168 and so on: 1.8V
36: CLAMP output 15: 5V-1

13

3. M61519FP

39: AV2 audio-L input 7: AV1/Saudio-R input
4: AV2aduion-R input 35: AVOUT audio-L output
6, 37: TV audio input 8: AVOUT audio-R output
38: YPbPr1audio-L input 11: audio- L output
5: YPbPr1audio-R input 19: audio-R output
40: YPbPr2audio-L input 22: CLOCK
3: YPbPr2audio-R input 21: DATA
36: AV1/Saudio-L input 20: 9V

14

4. STV9118

2: V-SYNC input 24: pincushion correction output
1；V-SYNC input 25: X-ray protection input
18: Vertical high voltage compensation input 31: SDA
17:Horizontal high voltage compensation input 30: SCL
26: horizontal signal output 29: 12V
23: vertical signal output

15

5. STV9211

1: R input 1: ABL
3: G input 5: B input
13: SDA 16: G output
19: CLAMP 14: B output
20: BLANK 7, 17: 5V
18: R output 12: SCL

16

6. LA72700V

5: SIF input 25: R output
11: SDA 26: L output
12: SCL 31: 9V

17

Wiring diagram

18

Trouble shooting

f

y

n

y

l

N

N

f

N

No N

1. No raster, No picture and No sound

Check the indicator

Press the power button

o signal

Check if the pin10 o
CPU has low-level
output

Check if it has X-ra
protection

Check if it has
vertical protectio
circuit

Light

Turn on

Check if the N802 is
normal

o-light

Check the FU501

Measure if the C516 is
about 150V

Check the N501, N502
and peripheral circuit

Check the suppl
power

Check the D501
and periphera
circuit

2. Picture, but w i t hout sound

Check if the N602 output

Check if the pin2 and pin4 o
sound amplifier output

Check the supply power, the
pin5 of mute is low level

Yes

Yes

Speaker damage

o

Check if sound-processing

601 is normal.

19

3. Sound, but wit hout pi cture

p

p

p

d

N

No N

Without raster Raster

It has sound, but without picture

Check if the

in26 of N302

has H-frequency

Check if the
V301 is damage

Abnormal

Check B+

Check if the H-V

circuit is normal
ormal

Check the FBT

Check the filament

voltage of CRT

board

Check if the digital

rocessing board has
RGB and H-V sync
output

Check if the digital

rocessing board has
RGB output

Check the N801 an
peripheral circuit

Check the N700

and peripheral

circuit

o

Check the digital

20

Schematic diagram

21

5

SC1
SD1

5V-1_DPTV

D D

C783

0.1uF

0

R729

C C

B B

MD[0..31]

DQM[0..3]

A A

MA[0..10]

NKL

CS0#

RAS#

CAS#

R774 68
R770 68 RN702

C770
68pF

RST

N700A

MD0

53

MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
MD16
MD17
MD18
MD19
MD20
MD21
MD22
MD23
MD24
MD25
MD26
MD27
MD28
MD29
MD30
MD31
DQM0
DQM1
DQM2
DQM3

5

MD0

55

MD1

56

MD2

58

MD3

62

MD4

64

MD5

66

MD6

68

MD7

69

MD8

71

MD9

72

MD10

74

MD11

78

MD12

80

MD13

82

MD14

84

MD15

124

MD16

126

MD17

128

MD18

130

MD19

134

MD20

136

MD21

137

MD22

139

MD23

140

MD24

142

MD25

144

MD26

146

MD27

150

MD28

152

MD29

153

MD30

155

MD31

59

DQM0

75

DQM1

133

DQM2

149

DQM3

SVP-EX_208

NKL

C772
68pF

12

13

15

V5SF

RESET

TESTMODE

SVP-EX [208]

DQS060DQS176DQS2

DQS3

132

148

NKL

4

A4

A5

16

SDA

A7A1A6

RN701
22x4

7 8

14

165

SCL

5 6

164

A_D7

A_D6

3 4

163

A_D5

1 2

162

A_D4

161

A3

7 8

160

A_D3

A_D2

A2

5 6

159

A_D1

A0

3 4

158

A_D0

22x4

1 2

(1 of 2)

MA1185MA1087MA988MA890MA791MA693MA594MA496MA398MA299MA1

MA7

MA8

MA9

MA6

MA5

MA10

4

MA4

MA3

101

MA1

MA2

TP_C30

MA0

102

MA0

TP1

170

171

RD#

MCK0

106

107

172

ALE

WR#

MCK0#

CS0#

CS1#

109

111

3

RN703

1 2
3 4
5 6
7 8

173

174

INT#

MPUCS0N

RAS#

CAS#

MVREF

113

114

116

TP2
TP_C30

3

22x4

MPUCS0N

R711 0_DNS

18

17

P_17

FLD/IO

MPUGPIO0
MPUGPIO1

VDDR

VSSR

VDDM
VDDM
VDDM
VDDM
VDDM
VDDM
VDDM
VDDM
VDDM
VDDM
VDDM
VDDM

VSSM
VSSM
VSSM
VSSM
VSSM
VSSM
VSSM
VSSM
VSSM
VSSM
VSSM
VSSM

WE#

CLKE

BA0

BA1

118

R710 0_DNS

120

121

123

A[0..7]

Option

157
156

115
117

151
145
135
129
112
110
100
95
79
73
63
57

147
143
131
127
108
105
97
92
81
77
65
61

Option

BA
CLKE
WE#

2

VCC_3

I2C Address:

10K

7E/7F

I2C
Address:
7C/7D
Not
Populated

CS

1K_DNS

VCC_3

R732
10K

R731

INPUT

MPUGPIO0

01

OUTPUT

MPUCS0N

0

RD
WR
ALE

INT

10K_DNS

MPUGPIO0
MPUGPIO1

R781

R782

VDDM

110

*CS1N is not a input or output pin
CS1N=0: SVP-EX CPU access enabled
CS1N=1: SVP-EX CPU access disabled

VDDM VDDM

C767

0.1uF

C764

0.1uF

Title

Schematict Name Rev

A

Size

2

10K
R769

R768
1K

SVP-EX 1 of 2

FB420 G

16

of

Date:Sheet

Tuesday, Apr il 0 5, 2005

1

CS1N

1

5

MLF1
PLF2

C794

0.1uF

C786

0.1uF

AGND

67
83

89
119
125
141
168

54

70

86
122
138
154
169

208

SVP-EX_208

C795

20pF

R702 10K_DNS

N700B

3

MLF1

6

PLF2

9

VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC
VDDC

8

VSSC
VSSC
VSSC
VSSC
VSSC
VSSC
VSSC
VSSC

1

XTALO
XTALI

C793 2700pF

C785 2700pF

PDVDD

C7A3

0.1uF

PDVSS

PAVDD

C7B0

0.1uF

PAVSS

5

Option

52

EX11/12 USE

EX32 USE

R704

10K_DNS

Option

R706
10K

VDDC

VDDH

VSSH

VSSC

41

43

P_4444P_4545P_4646P_4747P_4848P_4949P_5050P_5151P_52

P_3737P_3838P_3939P_4040P_41

P_4242P_43

SVP-EX [208]

(2 of 2)

PAVSS

PDVSS

AVSS_ADC1

AVSS3_BG_ASS

AVSS_ADC2

AVSS_ADC3

VSSH

VSSL

189

182

176

AVSS_ADC3

AVSS3_BG_ASS

AVDD_ADC3

AVSS_ADC3

167

20

VSSH

103

VSSL

VSSH

AVDD_ADC1

AVSS_ADC1

AVDD_ADC2

AVSS_ADC2

L710

C7A1

0.1uF

C7A9

0.1uF

C7A7

0.1uF

PAVSS2

4

7

PAVSS2

PAVSS1

PAVSS1

207

205

PDVSS

PAVSS

PAVDD1

PAVSS1

PAVDD2

PAVSS2

193

AVSS_ADC1

MLF1

PLF2

AVSS_ADC2

R708 10

36

PAVDD2

2

5

PAVDD2

PAVDD1

C732
10uF/16V

PAVDD

PAVDD1

206

PAVDD

1 2

VD3_3

D D

VD1_8

C C

G700

14.318MHz

C796

20pF

VL1_8

L704 150_Ohm_600mA

B B

1 2

C729
10uF/16V

L707 150_Ohm_600mA

1 2

C727
10uF/16V

L711 150_Ohm_600mA

1 2

C734

A A

10uF/16V

L713 150_Ohm_600mA

1 2

C743
10uF/16V

4

ADVDD33

AVSS33_1

PDVDD

AVDD_ADC1

AVDD3_AVSP2

AVDD_ADC2

AVDD_ADC3

204

192

188

181

175

PDVDD

AVDD_ADC2

AVDD_ADC1

AVDD_ADC3

AVDD3_AVSP2

L705

1 2

C742

150_Ohm_600mA

10uF/16V

L708

1 2

C740

150_Ohm_600mA

10uF/16V

VA1_8

150_Ohm_600mA

4

166

VDDH

19

AGND

R775

AVDD33

VDDH

AVSS33_3

VDDL

104

VDDL

VDDH

VA1_8

VA1_8

560

AGND

AIN_HS

AIN_VS

P_2121P_2222P_2323P_2424P_2525P_2626P_2727P_2828P_2929P_3030P_3131P_3232P_3333P_3434P_3535P_36

Y_G1

PB_B1

PR_R1

Y_G2

PB_B2

PR_R2

CVBS_OUTP
CVBS_OUTN

CVBS1
CVBS2
CVBS3

AIN_N1
AIN_N2
AIN_N3

VREFP_1

VREFN_1

VREFP_2

VREFN_2

VREFP_3

195

194

184

183

178

VDDL

C760

0.1uF

VSSL

AGNDAGND

VDDC

VSSC

AVDD3_AVSP2

C7A8

0.1uF

AVSS3_BG_ASS

C

VREFN_3

177

VREFN_3
VREFP_3
VREFN_2
VREFP_2
VREFN_1
VREFP_1

VD1_8

10
11

200
186
179
202
187
180

190
191
196
197
198
185
199
201
203

PRELIMINARY

V-sync
CLAMP
H-sync
VM
R_
G_
B_

R773
0/10K

When use EX12,use 0ohm;
When use EX22,use 10Kohm.

H-DSUB
V-DSUB

Y
Pb
Pr
Y_G2
PB_B2
PR_R2

CVBS_OUTP
CVBS_OUTN

CVBS1_
CVBS2_
CVBS3_

C_

AIN_N1

C766

0.1uF

AIN_N2
AIN_N3

L706

1 2

C704
10uF/16V

L712

1 2

C741
10uF/16V

AIN_N2
AIN_N3

VD1_8

150_Ohm_600mA

VD3_3

150_Ohm_600mA

3

C749 0.1uF

CVBS1_

R759
75

CVBS1_G

C750 0.1uF

CVBS2_

R760
75

CVBS2_G PB_B2_G

C751 0.1uF

CVBS3_

R761
75

CVBS3_G

C746 0.1uF

C_

R756
75

C_G

AVDD33
ADVDD33

AVSS33_3
AVSS33_2
AVSS33_1

AIN_N1

CVBS_OUTP

CVBS_OUTN

AGND

3

C712

0.1uF

CVBS1_G
CVBS2_G
CVBS3_G
C_G PR_R2_G

Place this

R790

resistor close to
EX chip

1K

AGND

10uF/16V

C7A2
30pF

C799 0.1uF

TV Y G-DSUB

TV_G

VIDEO1

VIDEO1_G

VIDEO2/Y-YC Pr

VIDEO2/Y_G

C-YC

VD3_3

C718

0.1uF

C733

VIDEO_OUT

R789
75

VIDEO_OUT_G

2

Y

Pb

Pb

Pr

C780

B

C720
10uF/16V

VREFP_2

0.1uF_DNS

AVSS_ADC2

C761

0.1uF

L709

1 2

C788

Title

VDDH

C710

VREFP_1

0.1uF_DNS

AVSS_ADC1

2

C719

0.1uF

C789

AIN_N2

R791

1K

AGND

C774

0.1uF

VSSH

C782

0.1uF

AIN_N2 AIN_N3

C791

0.1uF

0.1uF

VREFN_1

C781

0.1uF

0.1uF

Y_G1_G
PB_B1_G
PR_R1_G

Place this
resistor close to
EX chip

C763

C762

0.1uF

0.1uF

Schematict Name Re v

Size

1

C753 0.1uF

Y_G2

R763
75

Y_G2_G

C748 0.1uF

PB_B2

R758
75

C745 0.1uF

PR_R2

R755
75

PR_R2_G

VD3_3

150_Ohm_600mA

VREFN_2

C779

0.1uF

AIN_N3

R793

1K

AGND

C765

C768

0.1uF

0.1uF

SVP-EX 2 of 2

FB420 G

26

of

VREFP_3

0.1uF_DNS

C778

0.1uF

AVSS_ADC3

Y_G2_G
PB_B2_G

Place this
resistor close to
EX chip

C776

C792

0.1uF

0.1uF

Tuesday, April 05, 2005

Date:Sheet

1

B-DSUB

R-DSUB

C787

C784

0.1uF

VREFN_3

VD1_8

C777

0.1uF

5

4

3

2

1

BA

WE#

CAS#

D D

RAS#

NKL

R709 33
R705 33
R703 33
R701 33
R700 33

BA_
WE_
CAS_
RAS_
NKL_

MA[0..10]

CLKE

C C

VCC3_M

B B

R707 33

35

15

16

17

MD0
MD1
MD2
MD3
MD4
MD5
MD6 MD17
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15

11
12
39
40
42
43
45
46
48
49

13
38

44

25

2

DQ0

3

DQ1

5

DQ2

6

DQ3

8

DQ4

9

DQ5

CLK

RAS

CAS

WE

DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15

VDDQ

7

VDDQ
VDDQ
VDDQ

VDD

1

VDD

CS

18

CLKE_

19

KM416S1020B

MA10

BA

MA9
MA8
MA7
MA6
MA5
MA4
MA3
MA2
MA1
MA0
CKE

UDQM

LDQM

N.C.

N.C./RFU

VSSQ
VSSQ
VSSQ
VSSQ

VSS
VSS

N701

20
32
31
30
29
28
27
24
23
22
21
34

36
14
33
37

10
4
47
41

50
26

MA10
MA9
MA8
MA7
MA6
MA5
MA4
MA3
MA2
MA1
MA0

DQM1
DQM0

VCC3_M

MD23
MD22
MD21
MD20
MD19
MD18

MD16
MD24
MD25
MD26
MD27
MD28
MD29
MD30
MD31

11
12
39
40
42
43
45
46
48
49

13
38

44

25

2
3
5
6
8
9

7

1

DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15

VDDQ
VDDQ
VDDQ
VDDQ

VDD
VDD

35

17

CLK

16

RAS

15

CAS

18

19

WE

CS

KM416S1020B

MA10

BA

MA9
MA8
MA7
MA6
MA5
MA4
MA3
MA2
MA1
MA0
CKE

UDQM

LDQM

N.C.

N.C./RFU

VSSQ
VSSQ
VSSQ
VSSQ

VSS
VSS

N702

20
32
31
30
29
28
27
24
23
22
21
34

36
14
33
37

10
4
47
41

50
26

MA10
MA9
MA8
MA7
MA6
MA5
MA4
MA3
MA2
MA1
MA0

DQM3
DQM2

VCC3_M

VCC3_M

VCC3_M

VCC3_M

C722

1000pF

C702

0.1uF

C701

1000pF

C726

0.1uF

C775

1000pF

C700

0.1uF

1000pF

C790

0.1uF

C709

C773
1000pF

C707

0.1uF

C711

0.1uF

C723
100uF/16V

C708
1000pF

C703
100uF/16V

CS0#

MD[0..31]

DQM[0..3]

MD[0..31]

DQM[0..3]

SDRAM
DECOUPLING

VCC3_MVCC3

CAPACITORS

L700

C728

A A

22uF/16V

C797

0.1uF

Title

SDRAM 1MX16

Schematict Name Rev

FB420 G

A

Size

5

4

3

36

2

of

Date:Sheet

Thursday, March 31, 2005

1

5

4

3

2

1

3.3V POWER FOR SDRAM

3.3V_1

D D

L714

C757

C7B5

100uF/16V

0.1uF

N703
SS6117A-1.8

3

IN

GND

OUT

2

L720

VA1_8

C7A6

0.1uF

C739

22uF/16V

1

3.3V_2

L717

C7B1

0.1uF

L716

C755

22uF/16V

3.3V POWER FOR SVP-EX

VL1_8

N704
SS6117A-1.8

3

IN

C C

OUT

2

GND

1

L721

C737

0.1uF

C735

22uF/16V

L718

C769

0.1uF

VD3_33.3V

C713

22uF/16V

VCC3

C7A0

0.1uF

VDDM

C736

22uF/16V

VD1_8

N705

SS6085-1.8

3

IN

B B

4

GND

GND

1

OUT

2

C705

0.1uF

C706

22uF/16V

3.3V_3

L719

3.3V POWER FOR SVP-EX

L715

C7C0

0.1uF

C759

22uF/16V

C758

22uF/16V

VCC_3

C7B9

0.1uF

L722

5V-1 5V-1_DPTV

D702 1N4148

A A

Title

POWER

Schematict Name Rev

FB420 G

A

Size

5

4

3

46

2

of

Date:Sheet

Tuesday, Apr il 0 5, 2005

1

5

4

3

2

1

LR-MUTE

X700 HEADER_24X2

W-MUTE

SDA-EEP

D D

SCL-EEP

PAGE-EEP

CNVSS

RESET-CPU

TX
RX

5V-1

CLK1

CTX1/RTX1

HOLD

WR_

3 4
5 6
7 8

9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25
27 28
29

C C

SDA

SCL

31 32
33 34
35 36

R-OUT
G-OUT
B-OUT

37 38
39 40
41 42

21

SCL_CPU
SDA_CPU

3.3V

ON-TIMER

REMOTE
KEY

5V-1

Power
FLASH

26

30

V_Protect
X_Ray

5V-1_CPU

SDA

R7A5

SCL

10K

S-TRAP4
S-TRAP3
S-TRAP2
S-TRAP1

PAL/N

AFT

TV_G

VIDEO1_G

VIDEO1

AIN_N3
V-DSUB
H-DSUB
B-DSUB
G-DSUB
R-DSUB

TV_G

TV

TV

VIDEO1_G

VIDEO1

AIN_N3

Rotation

SVM

X701 HEADER_17X2

3 4
5 6
7 8

9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25
27 28
29
31 32
33 34

21

VIDEO OUT_G

VIDEO2/Y_G

26

AIN_N2

30

Pr_1
Pb_1
Y_1

R762
75

R757
75

C744 0.1uF
C747 0.1uF
C752 0.1uF

R754
75

TV-Hsync

3.3V_1

3.3V_2

3.3V_3

VIDEO_OUT_G
VIDEO_OUT
YC/VIDEO
C-YC
VIDEO2/Y_G
VIDEO2/Y-YC
AIN_N2

Pr_1#
Pb_1#
Y_1#

43 44

BLANKING

CLAMP

45 46
47 48

GND_CPU

B B

R764

R765

R766

75

75

75

C7B4
10pF

L701
L702

L703

10pF

C7B6

10pF

C7B7

C7B8
10pF

G-OUT
B-OUT

R_

R_ R-OUT

G_

G_

B_

B_

C7B2

C7B3

10pF

10pF

A A

GND_CPU

5

V-sync
H-sync

SDA

SCL

0

R798

0

R7A1

VM

R7A6
100

5V-1

R7A0

4.7K

5V-1

R7A2

4.7K

R771

2.2K

V700
MMBT3906

(PNP)

R799

R7A3

R772

1K

C7Y3 0.1uF
C7Y4 0.1uF

Pr_1#
PR_2

R7Y3

5V-1

C7Y2

47uF/16V

0_DNS

C7Y5 0.1uF

NY01

1
2
3
4
5

R7Y4 100

5V-1

C7Y1
1000pF

R7Y1

R7Y2

0_DNS

0_DNS

0

SD1

0

SC1

SELECT

TJC3_5

X702

SVM

Y_1#
Y_2

Pb_1#
PB_2

1

IN

2

S1A

3

S2A

4

DA

5

S1B

6

S2B

7

DB
GND8DC

FSAV330

VCC

S1D
S2D

S1C
S2C

/EN

16
15
14
13
12

DD

11
10
9

Y
Pb

Pr

Title

INTERFACE CONNECTOR

Schematict Name Re v

B

Size

4

3

2

FB420 G

Wednesday, April 06, 2005

56

Date:Sheet

of

1

5

4

3

2

1

5V-1_CPU

R78510K

V701

MMBT3904_DNS

R787

1K_DNS

Optional

GND_CPU

E C

Power

D D

100

LR-Mute
W-Mute

PAL/N

R784

100

R743

R783 100_DNS

R780 100

OPTION

75

100

R7A4
10K

GND_CPU

PAGE-EEP

AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0

GND_CPU

R779
R778

47

R777 100

100

R720

100_DNS

R718

OPTION

R719 10K

SELECT

100

R717

R726 100
R725 100

R724 100

5V-1_CPU

100_DNS

R723

R721 100_DNS

OPTION

PAGE-EEP

ON-Timer

BLANKING

D701

C C

B B

GND_CPU

V_Protect

5V-1_CPU

R716
10K

KEY

100pF

GND_CPU

C725

YC/VIDEO

X_Ray

AFT

5V-1_CPU

C724
100pF

Key_IN_LED

GND_CPU

76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99

100

P1_2
P1_1
P1_0
P0_7/AN0_7
P0_6/AN0_6
P0_5/AN0_5
P0_4/AN0_4
P0_3/AN0_3
P0_2/AN0_2
P0_1/AN0_1
P0_0/AN0_0
P10_7/AN7
P10_6/AN6
P10_5/AN5
P10_4/AN4
P10_3/AN3
P10_2/AN2
P10_1/AN1
Avss
P10_0/AN0
Vref
Avcc
P9_7/ADTRG
P9_6
P9_5

P9_4/DA11P9_2/TB2in3P9_1/TB1in4BYTE6CNVss7P8_6/Xcout9Reset10Vss12Xin

Rotation

S-TRAP1
S-TRAP2
S-TRAP3
S-TRAP4

R722 100

Option

R727 0_DNS
R728 0_DNS
R730 0_DNS
R733 0_DNS

5V-1_CPU

R715 220

D700 HZ4A2

R713 1K
C721 1000pF
C714 10uF/16V

A A

GND_CPU

R714

8.2K

C715

47uF/16V

MMBT3906

B

C E

B

P1_474P1_3

P9_3/DA0

2

V702

RESET-CPU

TP3
AD0

R78610K

73

P1_7/INT571P1_6/INT472P1_5/INT3

P9_0/TB0in

5

R734

4.7K

5V-1_CPU

TP4
AD1

TP8

TP5
AD2

A1A3A0

TP9

TP6

TP7

AD5

AD6

AD3

AD4

A4A4A3A1A2

A5A5A7

A6

P2_0/A0/D070P2_1/A1/D169P2_2/A2/D268P2_3/A3/D367P2_4/A4/D466P2_5/A5/D565P2_6/A6/D664P2_7/A7/D7

M30620SPGP

P8_7/Xcin

Xout

8

11

CNVSS

R735

GND_CPU

GND_CPU

G701

10MHz

C798
15pF

4.7K

TP10
AD7

63

N707

13

5V-1_CPU

62

Vss

Vcc114P8_5/NIM

C7A4
15pF

RESET-CPU

5V-1_CPU

GND_CPU

61

P3_0/A8

15

R788

4.7K

A[0..7]

60

59

Vcc2

P3_1/A9

P8_3/INT117P8_2/INT018P8_0/TA4out20P7_7/TA3in

P8_4/INT216P8_1/TA4in

P3_2/A1058P3_3/A1157P3_4/A1256P3_5/A1355P3_6/A1454P3_7/A1553P4_0/A1652P4_1/A17

P6_0/CTS0/RTS0

P6_4/CTS1/RTS1

P7_5/TA2in

P7_6/TA3out

P7_4/TA2out

23

22

21

19

24

H-sync

51

P4_2/A18

P4_3/A19
P4_4/CS0
P4_5/CS1
P4_6/CS2
P4_7/CS3

P5_0/WR
P5_1/BHE

P5_2/RD
P5_3/BCLK
P5_4/HLDA
P5_5/HOLD

P5_6/ALE

P5_7/RDY

P6_1/CLK0
P6_2/SCL0
P6_3/SDA0

P6_5/CLK1
P6_6/RXD1
P6_7/TXD1
P7_0/SDA2
P7_1/SCL2

P7_2/TA1out

P7_3/TA1in

25

50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26

5V-1_CPU

R741
R740
R739
R738

A8
A9
A10
A11
A12
A13
A14
A15
A16
A17

C731
33pF

R742

R737

10K

RX

TX

SDA-EEP
SCL-EEP

100_DNS
100
100
100

GND_CPUGND_CPU

R753 100
R752 4.7K

R751 4.7K

R749 100

R747 100
R746 4.7K
R745 100

100_DNS

OPTION

OPTION

C730
100pF

A[8..17]

A[0..7]

R712
0

12
11
10

27
26
23
25

28
29

30
31

9
8
7
6
5

4

3
2

N708

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
WE

A290021

(W29C020)

A0
A2

A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17

5V-1_CPU

TP12
RD

TP13
ALE

ALE

FLASH

INT

Rotation
SCL_CPU
SDA_CPU

GND_CPU

TV-Hsync
REMOTE

13

I/Q0

14

I/Q1

15

I/Q2

17

I/Q3

18

I/Q4

19

I/Q5

20

I/Q6

21

I/Q7

22

CE

24

OE

32

VCC

1

RESET

16

GND

R748 47K

R736
1K_DNS

Option

AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7

PS

GND_CPU

CS_

R750 0

RD_

5V-1_CPU

R796

4.7K

CTX1/RTX1
CLK1
RX
WR_
HOLD
TX

CNVSS

5V-1_CPU

C717

0.01uF
10uF/16V

R795

4.7K

R744
10K

C754
100pF

GND_CPUGND_CPU

C716

5V-1_CPU

R767
10K

100pF

C756

CS

R794 100

B

C7C1
100pF

GND_CPUGND_CPU

GND_CPU

5V-1_CPU

E C

GND_CPU

100pF

TP14

R797
10K

V703

MMBT3904_DNS

SCL
SDA

C7C2

SDA-EEP
SCL-EEP

N706

1
2
3
4
5
6
7

14

1Y

VCC

13

1A

4Y

12

1B

4A

11

2Y

4B

10

2A

3Y

9

2B

3A

8

3B

GND

74HC02

TP11
WR

C738

10uF/16V

GND_CPU

5V-1_CPU

C7A5

0.01uF

RD

WR

RST

5V-1

5

R792 0

5V-1_CPU

Title

Schematict Name Rev

C

4

3

2

Size

M30620SPGP

FB420 G

66

of

Date:Sheet

1

Tuesday, April 05, 2005

603-TJ27680-01
603-TJ27780-01

603-TJ3060-01
Ver.1.0