Haier 21FA18-T User manual

1
21FA18-T
(TB8873)
Order NO.WH070625S001V0
@(2007)(Haier Electronic Company Limited)
All rights reserved. Unauthorized copying and distribution is a
violation of law.

2
WARNING
This service information is designed for experienced repair technicians only and is not designed for use
by the general public. It does not contain warnings or cautions to advise non-technical individuals of
potential dangers in attempting to service a product. Products powered b electricity should be serviced
or repaired only by experienced professional technicians. Any attempt to service or repair the product
deal with in this service information by anyone else could result in serious injury or death.
CONTENT
1. SPECIFICATIONS………………………………………………………………………….. 3
2. WARNING…………………………………………………………………………………….. 4
3. FEATURESAND TECHINICAL DESCRIPTION………………………………………... 11
4. ADJUSTMENT………………………………………………………………………..………11
5. CIRCUIT DIAGRAM…………………………………………………………………………18
6. WIRING CONNECTION DIAGRAM……………………………………………………….18
7. CIRCUIT EXPLANATION.…………………………..…………………..………………….19
8. MAINTENANCE SERVICE AND TROUBLE SHOOTING………………………………22

3
1. Specification
MODEL
21FA18-T
MODEL
21FA18-T
NO. ITEM FUNCTION NO. ITEM FUNCTION
1 Main IC 8873 24 Digital curtain √
2 CRT PURE FLAT 25 Slow fading on & off √
3 Color system PAL 26 Semitransparent menu √
4 Audio system BG 27
N
on-flshing channel
changing √
5
N
O.of channels 218 28 ZOOM √
6 OSD language ENGLISH 29 16:9 mode √
7
PICTURE
Multi-picture modes 5 30 Games 1
8 AV stereo √ 31 Calendar √
9 Super woofer × 32 Child-lock √
10 Surrounding sound × 33 Multi-functional lock √
11 Treble/bass boost × 34
N
o-picture listening √
12 Left/right balancer √ 35 Background light ×
13
N
ICAM × 36 Auto-timer on √
14 Multi-audio modes √ 37 FM RADIO ×
15 Tone adjuster × 38
SOFTWARE
V-CHIP ×
16 MTS/SAP × 39
N
O. of buil
t
-in speakers 2
17
AUDIO
Auto-volume leveling × 40 Audio output power(W) 5×2
18 AV input back 1,side1 41 Total power input（W）70
19 AV output back 1 42 Voltage range（V）160~250
20 DVD terminal back 1 43 Power frequency（Hz）50/60
21 S-video jack back 1 44 Time of sleep timer(MINS) 120
22 Headphone socket ×45
N
et weight(KG) 23
23
JACK
SCART socket × 46 Gross weight(KG) 26
47
N
et dimension(MM) 615/482/452
48
PARAMETER
Packaged dimension(MM) 651/576/526

4
2.Warning
Safety Precautions
IMPORTANT SAFETY NOTICE
Many electrical identify these parts and mechanical parts in this chassis have special
safety-related characteristics! In the Schematic Diagram and Replacement Parts List.
It is essential that these special safety parts should be replaced with the same
components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or
other Hazards.
Do not modify the original design without permission of the manufacturer.
General Guidance
An Isolation Transformer should always be used during the servicing of a receiver whose
chassis is not isolated from the AC power line. Use a transformer of adequate power rating
as this protects the technician from accidents that might result in personal injury caused by
electrical shocks.
It will also protect the receiver and it’s components from being damaged by accidental
shorts of the circuitry that might be inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with a specified one.
When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the
resistor 10mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Due to the high vacuum and large surface area of the picture tube, extreme care should be
taken in handling the Picture Tube. Do not lift the Picture Tube by its Neck.
X-RAY Radiation
Warning:
The source of X-RAY RADIATION in this TV receiver is the High Voltage Section and the
Picture Tube.
For continued X-RAY RADIATION protection, the replacement tube must be of the same
type as specified in the Replacement Parts List.
Before returning the receiver to the customer,
Always perform an AC leakage current check on the exposed metallic parts of the cabinet,
such as antennas, terminals, etc., to make sure that the set is safe to operate without any
danger of electrical shock.

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Warning and Cautions
1. When you clean the TV set, please pull
out the power plug from AC outlet. Don't
clean the cabinet and the screen with
benzene,petrolandotherchemicals.
4. To prevent the TV set from firing and
electricshock,don't
maketheTVsetrain
ormoisture.
2. In order to prolong the using life of the
TV set, please place it on a ventilated
place.
5.Don'topenthebackcover,otherwiseitis
possibletodamagethecomponentsinthe
TVsetandharmyou.
3. Don't place the
TV set in the
sunshine or near
heatsource.
6. When the TV set isn't going to be used
for long time or it is in thunder and
lightening,pleasepulloutthe plugfromAC
outlet and theantenna plugfromthecover
oftheTVset.
Explanation on the display tube
Generally, it is not needed to clean the tube surface. However, if necessary,its surface can be
cleaned with a dry cotton cloth after cutting off the power.Don't use any cleanser. If using hard
cloth, the tube surface will be damaged.
CAUTION: Before servicing receivers covered by this service manual and its supplements
and addenda, read and follow the SAFETY PRECAUTIONS.
NOTE: If unforeseen circumstances create conflict between the following servicing
precautions and any of the safety precautions, always follow the safety precautions.
Remember: Safety First.

6
General Servicing Precautions
1. Always unplug the receiver AC power cord from the AC power source before:
a. Removing or reinstalling any component, circuit board module or any other
assembly of the receiver.
b. Disconnecting or reconnecting any receiver electrical plug or other electrical
connection.
c. Connecting a test substitute in parallel with an electrolytic capacitor in the receiver.
CAUTION: A wrong substitution part or incorrect installation polarity of electrolytic
capacitors may result in an explosion hazard.
d. Discharging the picture tube anode.
2. Test high voltage only by measuring it with an appropriate high voltage meter or other
voltage-measuring device (DVM, FETVOM, etc.) equipped with a suitable high voltage
probe. Do not test high voltage by “drawing an arc”.
3. Discharge the picture tube anode only by (a) first connecting one end of an insulated
clip lead to the degaussing or kine aquadag grounding system shield at the point where
the picture tube socket ground lead is connected, and then (b) touch the other end of
the insulated clip lead to the picture tube anode button, using an insulating handle to
avoid personal contact with high voltage.
4. Do not spray chemicals on or near this receiver or any of its assemblies.
5. Unless specified otherwise in this service manual, clean electrical contacts only by
applying the following mixture to the contacts with a pipe cleaner, cotton-tipped stick or
comparable nonabrasive applicator; 10% (by volume) Acetone and 90% (by volume)
isopropyl alcohol (90%-99% strength)
CAUTION: This is a flammable mixture.
Unless specified otherwise in this service manual, lubrication of contacts is not
required.
6. Do not defeat any plug / socket B+ voltage interlocks with which receivers covered by
this service manual might be equipped.
7. Do not applyAC power to this instrument and/or any of its electrical assemblies unless
all solid-state device heat sinks are correctly installed.
8. Always connect the test receiver ground lead to the receiver chassis ground before
connecting the test receiver positive lead.
Always remove the test receiver ground lead last.
9. Use with this receiver only the test fixtures specified in this service manual.
CAUTION: Do not connect the test fixture ground strap to any heat sink in this receiver.
Electrostatic ally Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity.
Such components are usually called Electrostatic ally Sensitive (ES) Devices. Examples of

7
typical ES devices are integrated circuits and some field effect transistors and
semiconductor “chip” components. The following techniques should be used to help
reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-
equipped assembly, drain off any electrostatic charge on your body by touching a
known earth ground. Alternatively, obtain and wear a commercially available
discharging wrist strap device, which should be removed to prevent potential shock
prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly
on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup
or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static type folder removal device. Some solder removal devices not
classified as “anti-static” can generate electrical charges sufficient to damage ES
devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges
sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately
before you are ready to install it. (Most replacement ES devices are packaged with
leads electrically shorted together by conductive foam, aluminum foil or comparable
conductive material).
7. Immediately before removing the protective material from the leads of a replacement
ES device, touch the protective material to the chassis or circuit assembly into which
the device will be installed.
CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other
safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices.
(Otherwise even some normally harmless motions such as mutual brushing of your
clothes’ fabric or lifting of your foot from a carpeted floor might generate static electricity
sufficient to damage an ES device.)
General Soldering Guidelines
Use a grounded-tip, low-wattage soldering iron and appropriate tip size and shape that
will maintain tip temperature within the range of 500oF to 600oF.
Use an appropriate gauge of RMA resin-core solder composed of 60 parts tin/40 parts
lead.
Keep the soldering iron tip clean and well tinned.
Thoroughly clean the surfaces to be soldered. Use a mall wire bristle (0.5 inch, or 1.25cm)
brush with a metal handle. Do not use freon-propelled spay-on cleaners.
Use the following unsoldering technique
a. Allow the soldering iron tip to reach normal temperature. (500o F to 600o F)

8
b. Heating the component lead until the solder melts.
c. Quickly draw the melted solder with an anti-static, suction-type solder removal
device with solder braid.
CAUTION: Work quickly to avoid overheating the circuit board printed foil.
Use the following unsoldering technique
a. Allow the soldering iron tip to reach normal temperature. (500o F to 600o F)
b. First, hold the soldering iron tip and solder the strand against the component lead
until the solder melts.
c. Quickly move the soldering iron tip to the junction of the component lead and the
printed circuit foil, and hold it there only until the solder flows onto and around both
the component lead and the foil.
CAUTION: Work quickly to avoid overheating the circuit board printed foil.
d. Closely inspect the solder area and remove any excess or splashed solder with a
small wire-bristle brush.
Remove /Replacement
Some chassis circuit boards have slotted holes (oblong) through which the IC leads are
inserted and then bent flat against the circuit foil. When holes are of slotted type, the
following technique should be used to remove and replace the IC. When working with
boards using the familiar round hole, use the standard technique as outlined.
Removal
Desolder and straighten each IC lead in one operation by gently prying up on the lead with
the soldering iron tip as the solder melts.
Draw away the melted solder with an anti-static suction-type solder removal device (or
with solder braid) before removing the IC.
Replacement
Carefully insert the replacement IC in the circuit board.
Carefully bend each IC lead against the circuit foil pad and solder it.
Clean the soldered areas with a small wire-bristle brush. (It is not necessary to reapply
acrylic coating to the areas).
“Small-Signal” Discrete Transistor
Removal/Replacement
Remove the defective transistor by clipping its leads as close as possible to the
component body.
Bend into a “U” shape the end of each of three leads remaining on the circuit board.
Bend into a “U” shape the replacement transistor leads.
Connect the replacement transistor leads to the corresponding leads extending from the

9
circuit board and crimp the “U” with long nose pliers to insure metal to metal contact then
solder each connection.
Power Output, Transistor Device
Removal/Replacement
Heat and remove all solder from around the transistor leads.
Remove the heat sink mounting screw (if so equipped).
Carefully remove the transistor from the heat sink of the circuit board.
Insert new transistor in the circuit board.
Solder each transistor lead, and clip off excess lead.
Replace heat sink.
Diode Removal/Replacement
Remove defective diode by clipping its leads as close as possible to diode body.
Bend the two remaining leads perpendicularly to the circuit board.
Observing diode polarity, wrap each lead of the new diode round the corresponding lead
on the circuit board.
Securely crimp each connection and solder it.
Inspect (on the circuit board copper side) the solder joints of the two “original” leads. If they
are not shiny, reheat them and if necessary, apply additional solder.
Fuse and Conventional Resistor
Removal/Replacement
1. Clip each fuse or resistor lead at top of the circuit board hollow stake.
2. Securely crimp the leads of replacement component around notch at stake top.
3. Solder the connections
CAUTION: Maintain original spacing between the replaced component and adjacent
components and the circuit board to prevent excessive component temperatures.
Circuit Board Foil Repair
Excessive heat applied to the copper foil of any printed circuit board will weaken the
adhesive that bonds foil to the circuit board causing the foil to separate from or “lift-off” the
board. The following guidelines and procedures should be followed whenever this
condition is encountered.
At IC Connections
To repair a defective copper pattern at IC connections use the following procedure to
install a jumper wire on the copper pattern side of the circuit board. (Use this technique
only on IC connections).
1. Carefully remove the damaged copper pattern with a sharp knife. (Remove only as
much copper as absolutely necessary).

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2. Carefully scratch away the solder resist and acrylic coating (if used) from the end of
the remaining copper pattern.
3. Bend a small “U” in one end of a small gauge jumper wire and carefully crimp it around
the IC pin. Solder the IC connection.
4. Route the jumper wire along the path of the out-away copper pattern and let it overlap
the previously scraped end of the good copper pattern. Solder the overlapped area
and clip off any excess jumper wire.
At other connections
Use the following technique to repair the defective copper pattern at connections other
than IC Pins. This technique involves the installation of a jumper wire on the component
side of the circuit board.
Remove the defective copper pattern with a sharp knife.
Remove at least 1/4 inch of copper, to insure that a hazardous condition will not exist if
the jumper wire opens.
Trace along the copper pattern from both sides of the pattern break and locate the
nearest component that is directly connected to the affected copper pattern.
Connect insulated 20-gauge jumper wire from the lead of the nearest component on one
side of the pattern break to the lead of the nearest component on the other side.
Carefully crimp and solder the connections.
CAUTION: Be sure the insulated jumper wire is dressed so that it does not touch
components or sharp edges.
WARNING
RISKELECTRIC SHOCK
DONOT OPEN
WARNING:To reduce the risk of electric shick don’t remove cover or back.
No user-serviceable parts inside refer service to qualified service personnel.
Safety of operators has been taken into consideration at the design and manufacture phase, but
inappropriate operation may cause electric shock or fire. To prevent the product from being damaged,
the following rules should be observed for the installation, use and maintenance of the product. Read
the following safety instruction before starting the operation.
The User Manual uses the following symbols to ensure a safe operation and preventany damage to
operators or properties:

11
3.FEATURES AND TECHINICAL DESCRIPTION
FUNCTIONS :
1.ALL-BAND CATV (470MHz) 2.I2C bus control
3.Auto and manual tuning 4.Audio/video input/output interfaces
5.Multiple picture modes selection 6.Screen saver when no signal
7PALDK 8.218programsPreset
9.volume setting stored 10.Program scan
11.Child LOCK 12.Slide curtain power on/off display，improved eye
protection
4. Adjustment
A..Factory adjustment information
Operation method: after the appliance is switched on, make the volume value to zero.
Then press “ V- ” key on the TV set and press the DISP button on remote controller at
the same time to enter the S state. Press DISP button one times and “S” will disappear,
Repeat the first step, you will enter the D mode. Now one “D” is displayed on the TV
screen.
Press PRO- and PRO+ buttons to select items for adjustment.
Press VOL- and VOL+ buttons to adjust selected items.
Press the POWER button to switch off the appliance and go back to the normal state.
B.Maintenance menu (Table 8)
Function Function bewrite referen
ce
initializati
on
OSDH-POS OSD Hortzontal position 14
OPT function OPTION B4
RCUT R CUT OFF 22
GCUT G CUT OFF 33
BCUT B CUT OFF 2D
GDRV G DRIVE 40
BDRV B DRIVE 40
CNTX SUB CONTRAST MAX 7F
BRTC SUB BRIGHT CENTER 52
COLC SUB COLOR CENTER FOR NTSC 40
TNTC SUB TINT CENTER 40
COLP SUB COLOR CENTER FOR PAL 02
COLD DVD COLOR CENTER (DIF) 05
SCNT Y-SUB CONTRAST 0A
CNTC SUB CONTRASRT CENTER 4B
CNTN SUB CONTRASRT MINIMUM 07
CNTD DVD CONTRAST MAX 7F

12
BRTX SUB BRIGHT MAX 20
BRTN SUB BRIGHT MINIMUM 20
COLX SUB COLOR MAX 25
COLN SUB COLOR MINIMUM 0D
TNTX SUB TINT MAX 28
TNTN SUB TINT MINIMUM 28
ST3 SUB SHARP CENTER NTSC3.58 IN TV 19
SV3 SUB SHARP CENTER NTSC3.58 IN VIDEO 1D
ST4 SUB SHARP CENTER OTHER COLOR SYSTEM IN TV 25
SV4 SUB SHARP CENTER OTHER COLOR SYSTEM IN VIDEO 1D
SVD SUB SHARP CENTER IN DVD 1B
ASSH ASYMMETRY – SHARPNESS 05
SHPX SUB SHARPNESS MAX POINTS FROM CENTER VALUE 1A
SHPN SUB SHARPNESS MIN POINTS FROM CENTER VALUE 19
TXCX RGB CONTRAST DATA AT MAX DATA OF USER CONTRAST
OSD
RGCN RGB CONTRAST DATA AT MIN DATA OF USER CONTRAST
OSD
ABCL ABCL，17
DCBS DCBS，95
CLTB The data when TV mode & SOUND SYS = M 89
CLTD The data when TV mode & SOUND SYS = M 89
CLTM The data when TV mode & SOUND SYS = M AC
CLVO The data when YVU mode & SOUND SYS != M AD
CLVD The data when YVU mode & SOUND SYS = M 88
OSDA excursus 01
HPOS 50HZ HORIZONTAL PHASE 50HZ *
VP50 50 HZ VERTICAL PHASE 50HZ *
HIT 50HZ VERTICAL AMPLITUDE *
HPS SHIFT DAT OF 50/60HZ HORIZONTAL PHASE *
VP60 60HZ VERTICAL PHASE *
HITS SHIFT DATA OF 50/60 HZ HORIZONTAL PHASE *
VLIN V-LINEARITY *
VSC V-S CORRECTION *
VLIS V-LINEARITY *
VSS V-S CORRECTION *
UVBLACK high 4 digit is ublack low 4 digit is &vblack 88
HBOW
HPARA
VCD_1BH high 3 digit and VCD_24H 88
BRTS SUB BRIGHT 00
RAGC RF AGC ADJUSTMENT 20
HAFC 1/2 AFC DATA ADJUSTMENT 86
NOIS Signal strength setting 0F
NDTC NOISE DET count (Weak -> Normal) 1F
VL1 VOLUME OUTPUT DATA AT 25% 09
VL25 VOLUME OUTPUT DATA AT 50% 3D

13
VL50 VOLUME 100 57
VLX ??? 7F
MUTT Y-MUTE FOR SOFT START 00
STAT CONTRAST UP FOR SOFT START 00
FLG0 Flag0 44
FLG1 Flag1 70
SVM PIC1 SVM 50
VBLK V BLANKING START AND STOP POINT 00
VCEN V CENTERING 2E
UCOM 00:GND;01:R OUTPUT;10:B OUTPUT;11:MONITOR RF AGC
VIA ADC
00
PYNX Normal H.SYNC max 33
PYNN Normal H.SYNC min 11
PYXS Search H.SYNC max 22
PYNS Search H.SYNC min 1E
RCUTS RCUTS 00
GCUTS GCUTS 00
BCUTS GDRVS 00
GDRVS GDRVS 00
BDRVS BDRVS 00
AV_OPT Av option 04
OPT2 Option 2 1C
WAIT TIME Timing between power on and picture appearing 2F
CUR_CEN Curtain beginning position BB
CUR_STEP Curtain moving speed 02
AUSTP 04
MODE0 Multiple setting A9
MODE1 Multiple setting 0F
OSDF OSD frequency 68
STBG S TRAP f0 for BG 06
STI S TRAP f0 for I 08
STDK S TRAP f0 for DK 08
STM S TRAP f0 for M 08
08
SSBG 08
SSI 08
SSDK 08
SSM
S TRAP HP/LP for BG S TRAP Q for BG S TRAP GD for BG
S TRAP HP/LP for I S TRAP Q for I S TRAP GD for I
S TRAP HP/LP for DK S TRAP Q for DK S TRAP GD for DK
S TRAP HP/LP for M S TRAP Q for M S TRAP GD for M
D5 D4 D3 D2 D1 D0 09
SYNC 04
SYBBN 00
SYBBF 00
SYSR
option
02
BBCT Blue back hysteresis counter (BUS H sync detection 04

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VCD0 ???? 08
VCD1 D1D0：00 38M；01：38.9M?????? 01
BL25 % of ATT for Balance 25 1E
BL49 % of ATT for Balance 49 50
OV50 OSD vertical position for 50Hz 0C
OV60 OSD vertical position for 60Hz 02
HIT1 16.：9 adjust 11
HIT2 Zoom adjust 06
COLX2 3A optiomize adjust 05
PCON Run press key 0 image resume contrast 32
PBRI Run press key 0 image resume bright 32
PCOL Run press key 0 image resume color 32
PTIN Run press key 0 image resume tint 32
PSHA Run press key 0 image resume definition 32
PVOL 32
BR_BRI bright numerical value adjust 50
CO_BRI bright numerical value adjust 32
DK_BRI bright numerical value adjust 32
BK_BRI bright numerical value adjust 1E
BR_CONT Contrast numerical value adjust 64
CO_CON Contrast numerical value adjust 64
DK_CONT Contrast numerical value adjust 32
BK_CON Contrast numerical value adjust 32
V_NOISE Sound quarrel ‘snumerical value 28
V_MID 1E
V_QUIET 0F
PWR
BUS
MEM
Q501
QT01
OPT：
BIT FUNCTION
0 Hotel mode 1:welcome logo 0:haier logo
1 No use
2 V_Mute ON/OFF when ＣＨ changes(=1:ON)
3 AUDIO GAIN SW of tb1240
4 Not VT Down of AFT when No Signal(=1)
5 TINT 0:use 1:unused
6 Select TV sync(0) or MONITOR sync(1)
7 Mute of av switch key 1.use 0.no use
ABL：
BIT FUNCTION
0
1
ABL-Gain 00:-0.2;01:-0.4;10:-0.6;11:-0.8v
2 ABL Start Point 00:-0.0;01:-0.15;10:-0.3;11:-0.45v

15
3
4
5
ACL ST ????????
6 WPS 0:Y peak limiter off 1:Y peak limiter on,105IRE
7 No use
DCBS
BIT FUNCTION
0
1
BLACK STRETCH black strecth
00：Off；01：Black stretch point,26IRE; 10 : 33 IRE; 11 : 43 IRE ???
2
3
Y GAMMA
00：Off；01：Y γpoint 90 IRE,Gain –3dB; 10 : 82 IRE ; 11 : 75 IRE
4 VCD BS SW
5 VCD CORING
6 VCD BLACK
7 C TRAP Q
CLTO\CLTM\CLVO\CLVD
BIT FUNCTION
0
1
2
Y Delay Time
000:-40 nsec;001:0;010:40 nsec;011:80 nsec;100:120 nsec;101:160 nsec;110:200 nsec;
111:240 nsec
3
4
N Phase
00:USA(105 degree);01:Japan(93 degree);10:11:DVD
5 Color Y 0:Color gamma off ;1:On;
6 PN-ID Sens 0:PAL/NTSC killer sensitivity,1mVpp; 1:10mVpp
7 FID 0:Normal;1:Alwas killer off,i.e. always color on..
SYNC:
BIT FUNCTION
0 Select sync slice level for weak signal
1 Select sync separation level
2 Select H sync judgement : 0:BUS, 1:TC3
3 UNUSE
4 UNUSE
5 UNUSE
6 UNUSE
7 UNUSE
SYBBN:
BIT FUNCTION
0 UNUSE
1 UNUSE
2 Select window pulse for H lock detection
3 Select H lock detection mode
4 Select SY-DET-1 for sync dtection
5 Select SY-DET-2 for sync dtection
6 Select LPF mode for sync dtection
7 UNUSE
SYBBF

16
BIT FUNCTION
0 UNUSE
1 UNUSE
2 Select window pulse for H lock detection
3 Select H lock detection mode
4 Select SY-DET-1 for sync dtection
5 Select SY-DET-2 for sync dtection
6 Select LPF mode for sync dtection
7 UNUSE
SYSR:
BIT FUNCTION
0 UNUSE
1 UNUSE
2 Select window pulse for H lock detection
3 Select H lock detection mode
4 Select SY-DET-1 for sync dtection
5 Select SY-DET-2 for sync dtection
6 Select LPF mode for sync dtection
7 UNUSE
FLG0:
BIT FUNCTION
0 0:NORMAL;1:PIF over modulation switch on
1 0:BPF;1:TOF
2 0:Nyquist Buzz cancel,on;2:off
3 0:Off, 1:If BB=1, RGB out is 110 IRE
4 TB1254N band pass filter switch
5 SIF FIX Select 0:fix to normal, 1:control with sound system
6 SIF 5.74 Select In D mode, aplly this bit to SIF 574
7 vco readjust when position select 0:disable;1:enable;
FLG1:
BIT FUNCTION
0 CW SW
1 V ramp bias
2 Sync. Sepa. level
3 Horizontal side blanking
4 UNSED
5 UNSED
6 1：count time clear to 20H；0：count time clear to 0H
7 1：user press key SLEEP clear time；0：no
SVM:
BIT FUNCTION
0
1
SVM gain
00:-6dB;01:0dB;10:+6dB;11:+12dB
2
3
SVM DL(svm delay)
00:off;01:-100ns;10:-60ns;11:-40ns
4 Mon、svm ？？？？？？

17
5
6 1: SOFT CHANGE CHANNEL 0：no
7 UNUSE
VBLK
BIT FUNCTION
0
1
00:23H;01:33H;10:37H;11:41H (50Hz)
00:22H;01:30H;10:34H;11:38H (60Hz)
2
3
00:310H;01:299H;10:295H;11:291H (50Hz)
00:263H;01:254H;10:250H;11:246H (60Hz)
4
5
MODE0:
BIT FUNCTION
0 1：218 channels；0：100 channels
1 1：5060 （M system）；0：tow way AV
2 0：SECAM；1：no
3 1：RGB Out-Cut Off DC；0：Y-M U T E
4 1：ALWAYS DISPLAY SOME MENU；0：SOMETIMES DISPLAY SOME MENU
5 0：ALPS 1:panasionc
6
7
SHOP OUT
00：DK；01：I；10：BG
MODE1:
BIT FUNCTION
0 0:no BG;1:yes
1 0:noI;1:yes
2 0:noDK;1:yes
3 0:no M;1:yes
4 0:when asm & search,set up VCO adjust req. ,1:only power on
0:PIF VCO adjust trigger 1: normal (12 :bit 7)
5 The algorithm of ASM. 0:ASM doesn't judge IFLOCK with case 4. 1:ASM judge IF
LOCK with case 4
6 The algorithm of ASM. 0:ASM doesn't judge Fhsync with case 4. 1:ASM judge Fhsync
with case 4
7 TINT polarity ,input to V/C/D. 0:normal 1:invert
AV _ O P T ：
Byte FUNCTION
Video1 Video2 Video3
0 VIDEO DVD
1 VIDEO S-VIDEO DVD
2 VIDEO DVD VIDEO
3 VIDEO S-VIDEO DVD
4 VIDEO/S-VIDEO DVD
5 VIDEO/S-VIDEO VIDEO DVD
6 VIDEO DVD VIDEO
7 VIDEO VIDEO DVD
OPT2:

18
BIT FUNCTION
0 lunar calendar 1:have lunar calendar ; 0:no lunar calendar
1 No use
2 1：english 0：chinese
3 AV WITH MUTE；1：yes；0：no
4 No use
5 1：super incept 0：no
6 No use
7 0：boot-strap welcome 1：no
MOD：
BIT FUNCTION
0
1
akb
CUTOFF
SENSITI
VITY
00：*9.75;01:*10.00;10:*10.25;11:*10.50
2
3 MOD.3:0 CUTOFF range:-0.65~+0.65;1:-0.65~+0.85
4
5
6
000：NO；001：45.75；011：38.9；100：38.0
7
OSDA
BIT FUNCTION
0
1
OSD CONTRAST
00:80 IRE 01:70;02:60;03:50;
2
3 OSD ABL: RGB ABCL 0:ABCL active for OSD 0:inactive
4
5
6
7
You can change the DATA with “*” mark when necessary.
5. CIRCUIT DIAGRAM
6. WIRING CONNECTION DIAGRAM

6
5
3
4
1
2
10
7
KSC
KFC
HV
(EMC)T401
JF0501-19910
1
2
3
N206
HS0038A2
A0
1
A1
2
A2
3
VSS
4SDA 5
SCL 6
TEST 7
VCC 8
N202 NM24C08EN
1 3
2
N204
7805
R433
330
V431
2SC2383
R434
1K
C431
500V3900p
C432
1000p
T402
BCT-02
C433
47u/35V
R439
0.5W 20K
L405
ZZ0008
C415
2KV 6800p C416
2KV 680p
C412
0.39u630V
C423
100V 0.1u
R442
10K
+33V
N121
uPC574J
C126
1000P C125
10u 50V
R128 2W12K
R645
0.25W 1K
S705
MENU
S706
TV/VIDEO
S704
VOL -
R765
110K
R764
30K
R763
15K
S703
VOL +
S702
CH -
S701
CH +
R762
11K
R761
5.6K
BL301
R-10W8
+200V
L407 LX37
R413
0.5W4.7K
G201
8M
R809
75
!
!
R435
2W 270
R432
330
VIDEO1 IN
AUDIO1 IN(L)
Y C
XS801
C803
0.01u
R807
75
1
2
XS301
1
2
3
4
L410
LHDY
1
3
5
4
XS401
R207
1K
R205
33K R209
1K
R211
8.2K C212
0.1u(M)
C213
1u
C214
0.1u(M)
R212
100
R213
100
R214
100
C209
0.22u(M)
C210 470u
C211
0.01u
L212
47u
R216
100
C216
0.47u C248
0.47u
C215
10u
C220 10u
VD202
1SS133
C219
0.1u(M)
R218
100K
C221
0.1u(M)
C225
0.01u
C226
NP 10u
C227
0.47u
C228 1000P
C229
470u
C230
0.01u
L204 PL-12uH
C231
4.7u
C232
OPEN
R221
750
C233
2.2u
C234
100u
C235
0.01u
C236
1u
R223 220K R224 30K
C237
0.22u
C238 2200P
R227
270
R226
270
R225
270
VD251
HZ10 VD253
HZ10 VD252 HZ10
C244
0.01u
C245
10u
R230
47
C249
0.01u
C250
10u R229 10K
R228 10K
C105
0.01u
R234
22K
R233
22K
C247
100P
C202
0.01u
C206
0.01u
C205
10u
L201
10u
C255
47u
R250
100
R246
150
L104
68uH
C108
0.01u C107
220u
R113
15K
R114
100k
C109
4.7u
C240
0.01u
C239
10u
V301
A1015Y
VD301
1SS133
R313 4.7K
C313
47u
VD302
1SS133
R217
0.5W 270
R812
OPEN
Y
Cb
Cr
R817
75
R818
75
R819
75
C224
2.2u 50V
R215
100
C208
0.47U
C207
8200P
C203
CH20p C204
CH20p
+115V
R237
1.5K
VD201
HZ3.6V
R236
8.2K
V203
A1015Y
R210
4.7K
R446
10K
C201
0.01u
R235 1K
R581
10K R582
10K
V556
C1815Y
OFF ON
B6
+9V C252
0.01u C251 100u
V432
2SD2499
R639
0.5W 150k
RP601
20K
R640
3.6K
C643 0.15u
!
XS601 SW601
(EMC)C601
0.22u/250VAC
(EMC)L602
LCL -04
(EMC)C602
0.1u/250V
1
23
RT601
PDC7RQPP6B744
C605
1KV 1000p C606
1KV 1000p
C603
1KV 1000p
C604
1KV 1000p
(EMC)L603
LCL -04
(EMC)VD603~VD606
RM11C C607
150u/450V
VD698
EU2A
VD699
TRG1C
VD697
EU2A
C695
OPEN
C615 AC400V2200p
R693
1W 5.1R
R599
1K
R601
0.5W220K
F601
2.5A/250V
R698
0.5W220K
7
R602 7W 1R8
!
!
C696
10u/50V
C693
3900P
1
XS602
1
L909
QHXC-54F(AL)
L207
PL-10uH
R401
16K
V205
C1815Y
R243
2.2K
VD305
1SS133
XS802
VD207
R263
3.3K
R241
3.3K
AV (Pin 61)
OSD Pin 61(N201)
TV
AV1
AV2
DVD
0V
0V
5V
0V
C-IN
R451
1W4.7K
C440
100V4700p
VD420
RD9.1CB
Input
1
Vcc
2
Pump Up
3
GND
4
Output
5
Out Vcc
6
Reference
7
N401 STV9302A
C401
2700p
C402
NC
VD402
1N4761A
C403
0.22u
C409
220u/35V
C404
10u/16V R403
5.6K
R404
12K
C407 100u/35V
VD401 EU2A
R405
62K R406 47K
C405
25V/0.47u
R407
10k
R402
0.5W 1
R408
150
C408
100V 0.047u
C406
1000u/25V
R412
0.68
AUDIO1 IN(R)
C625
1KV 470p
VD623
RU4YX
C629 470p/1KV
C630
22u/250V
VD625 EU2A
C623
470p/1KV
VD622
RU4YX
C621470p/2KV
VD624S2L60U
C622
2200u/25V
C640
220u/160V
VD621
RU4YX
C627 470p/2KV
C626
2200u/35V
+27V
B2
B3
+12V
B5
+5V CPU
B4
+13V
R643
39K
R697
3W 56K
C698
220p/1KV
C694 47n
R695
0.25W470
R694
1W 1.5K
R598
10K
R531 12M
V555
D400
R557
0.5W12
R558
470
VD570
MTZ10A
C570
4.7u
+13V
+8V
H.VCC
B4
C522
0.01u
C521
470u/16V
B6
+9V
1 3
2
N205
7808
R570 1W 27
C520
0.01u
1 3
2
N705
TA7805
K
R
A
N604
KA431LZ
+115V
B1
+115V
B1
L401
TEM2011
B5
+5V CPU
+8V
H.VCC
B6
+9V
DRAIN
1
GND
2
VCC
3
FB/OCP
4
SYNC
5
(EMC)N601CQ0765RT C697
1000p/1KV
V598
2SB892
R596
10K
R597 3K9
C699
22n/630V
V5992SB892
VD599
1N4148
R595
0.25W-1K VD641
1N4148
VD614
1N4148
(EMC)
!
!
!
!!
!
!
!
!
!
R631
0.5W 0.22
!
RZ601
C624
2200u/25V
R628
0.5W 2.2
R621 2W 1
!
R239
270
IR
5V
GND
N602A
TLP421
G
B
+9V
GND
R
1 2 3 4 5 6 7
XP201
HEAT
1
2
3
4XP402
R102
1.5K
R107
OPEN R103
OPEN
R108
33
V101
2SC2216
L103
1uH
C104
0.01u
C102
0.01u
R106
390
X203
L10.7M
R220
4.7K
V204
A1015Y
R219
100
R242 330
R115
15k V102
C1815Y C103
3.9K
C106
OPEN
R111
6.8K
R110
10K
M
DK/I/BG
L205
R222
L605TEM2011
1
2
34
VD695
1SS133
VD696
OPEN
C568
470u/16V
C569
0.01u
VD571
1SS133
R559
1.8K
SYS(Pin 59)
SYS Pin 59(N201)
M
D/K
I
B/G
0V
5V
5V
5V
R436
0C400
10u 160V
R460
0.5W 220K
Sin
1
SW
2
G
3
SO
4
SO
5
Z101
N6283
R105
0
R109
0
R112
2.2K
VD101
1SS133
21"-TSB-2IN1 Ref. Chassis(CQ0765)
C257
0.01u
B6
+9V
R100
220
L209
PL-12uH
VD682
MTZ18C
R409
1.2k
C411
1uF/160V
VD413RU2A
+8V
H.VCC
R814
OPEN
C223
2.2u 50V
R201
1M
U/V
1
L/H
2
KEY
3
GND
4
RESET
5
X-TAL
6
X-TAL
7
TEST
8
+5V
9
GND
10
GND
11
SCP-OUT
12
H-OUT
13
H.AFC
14
V-SAW
15
V-OUT
16
H-VCC
17
GND
18
Cb
19
Y-IN
20
Cr
21
EXT-AUDIO1
22
C-IN
23
EXT-IN
24
ALC FILTER
25
TV-IN(1Vp-p)
26
ABCL-IN
27
AUDIO-OUT1
28
AUDIO-OUT2
29
TV-OUT(2Vp-p)
30
SIF-OUT
31
EXT-AUDIO2
32 SIF-IN 33
DC NF 34
PIF PLL 35
IF-VCC(5V) 36
S-REG 37
AUDIO MON 38
IFAGC 39
IFGND 40
IF IN 41 IF IN 42
RFAGC 43
BLACKDET 44
MONITOR-OUT 45
APCFIL 46
YC 5V 47
SYNC-OUT 48
D Vcc3.3V 49
R-OUT 50 G-OUT 51 B-OUT 52
D GND 53
GND 54
5V 55
MUTE 56
SDA1 57
SCL1 58
SYSTEM 59
VT 60
AV SW 61
TV SYNC 62
RMT-IN 63
POWER 64
N201 TMPA8873
R200
0
C200
47u
C305
4.7u C306
4.7u
R304
2.2K
R303
2.2K
C304
0.01
C303
0.01
C309
470u/25V C310
0.01u
R308
270K R305
68K
C307
47u
R301 5.6K
R302 5.6K
C3012.2u
C3022.2u
VCC
1
OUT1
2
GND
3
OUT1
4
STANDBY
5
IN1
6
GND
7
IN2
8
VOL
9
OUT2
10
GND
11
OUT2
12
N301 AN7522N
V302
2SC2878A
R312
22K
R309 47K
BL302
R-10W8
1
2
XS302
VD306
1SS133
SPOT
LR
R
L
B3
+12V
+5V-2
+5V-2
R231
1.5M
R232
OPEN
VD204
OPEN
VD205
OPEN
R244
330
R245
1K
V214
A1015Y
R247
150
R811
1K
R813
1K
7
5
3
114
9
11
13
12
8
10
T601
BCK-05I-5
B7
+180V
AGC
1
VT
2
SCL
4
SDA
5
MB
6
IF
11
ADS
3
+33V
9
U101
W109
SHORT
W401
OPEN
W402
OPEN
V-OUT
R-OUT
L-OUT AV-OUT
C801
470u 10V
R802
75
R803
220
V805
2SC1815Y
R801
100
C802
10u
R806
1K
R805
2.2K
V802
2SC1815Y
R804
100
R808
100K
R810
560
R800
0.5W 100
C807
22u 16V C800
100u 16V
C600
100P
C610
0.47u(M)
R320
1/2W-4.7K
R462
18K
W608
0.5W10
R927 RF10-1W-4.7
VE1 CRT
V901
2SC2482
V911
2SC2482
V921
2SC2482
VD901
1N4148
VD911
1N4148
VD921
1N4148
R903
1K
R913
1K
R923
1K
C901
330P
C911
330P
C921
330P
R901 100
R911 100
R921100
R905
0.5W1.2K
R915 0.5W1.2K
R925 0.5W1.2K
1
2
XS903
1
2
3
4XS902
200V
HEAT
GND
GND
9V G
B R
1
2
XP903
R902 560
R922
560
R912
560
R904
15K 2W
R914
15K 2W
R924
15K 2W
C902
2KV 1000P
1 2 3 4 5 6 7
XS901
R940
33
SPOT
R936
47K
V933
2SC1815
R935
10K
C933
0.01u
VE1A CRT SOCKET
V931
A1015
VD931
SHORT VD932 SHORT
C931
10u/16V
R931
1.2K
R932
2K7 R933
330 R934
1K
+
C932
47u/16V
R699
0.25W1K
2.2U
C311
C312
0.1UF
V303
2SC2878A
R314
22K
C314
2.2U
VD681
MTZ5.1B
C681
10u/50V
R681
2W-1K
VD608
EU2A
L901
PL-12uH
VD950
MTZ10A
GND
VD263
MTZ5.6C
VD261
MTZ5.6C
VD264
MTZ5.6C
VD266
MTZJ3.6A
R130
1K
C130
MTZ5.1B