DX-RCRT20-09
1
(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. WAINING…………………………………………………………………………………….. 4
3. FEATURES AND TECHINICAL DESCRIPTION………………………………………... 11
4. Adjustment……………………………………………………………………………………11
5. WIRING CONNECTION DIAGRAM……………………………………………………….14
6. Circuit Explanation…………………………………..…………………..………………….16
7. Maintenance Service and Trouble shooting………………………………………………19
8. Circuit Diagram………………………………………………………………………………24
1. Specification
MODEL
21TA1
MODEL
21TA1
NO.
ITEM
FUNCTION
USA
NO.
ITEM
FUNCTION
USA
1
Main IC R2J10165GF
24
Digital curtain
×
2
CRT
flat 25
Slow fading on & off
×
3
Color system
NTSC+ATSC 26
Semitransparent menu
×
4
Audio system
M 27
Non-flshing channel
changing
√
5
NO.of channels
181 28
ZOOM
√
6
OSD language
ENGLISH 29
16:9 mode
√
7
PICTURE
Multi-picture modes
4 30
Games
×
8
AV ste r e o
√ 31
Calendar
×
9
Super woofer
× 32
Child-lock
×
10
Surrounding sound
× 33
V-CHIP
√
11
Treble/bass boost
× 34
No-picture listening
×
12
Left/right balancer
× 35
Background light
×
13
NICAM
× 36
Sleep timer
√
14
Multi-audio modes
× 37
Q.view
√
15
Tone adjuster
× 38
SOFTWARE
CCD
√
16
MTS/SAP
× 39
NO. of built-in speakers
2
17
AUDIO
Auto-volume leveling
× 40
Audio output power(W)
2×2
18
AV input
back 1,front1 41
Total power input（W）
70
19
AV output
back 1 42
Voltage range（V）
90~250
20
DVD terminal
back 1 43
Power frequency（Hz）
50/60
21
S-video jack
back 1 44
Time of sleep timer(MINS)
240
22
Headphone socket
× 45
Net weight(KG)
24
23
JACK
SCART socket
× 46
Gross weight(KG)
26
47
Net dimension(MM)
576×395×458
48
PARAMET ER
Packaged dimension(MM)
650×565×525
3
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.
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, petrol and other chemicals.
4. To prevent the TV set from firing and
electric shock, don't
make the TV set rain
or moisture.
2.
In order to prolong the using life of the
TV set, please place it on a ventilated
place.
5. Don't open the back cover, otherwise it is
possible to damage the components in the
TV set and harm you.
3.
Don't place the
TV set in the
sunshine or near
heat source.
6. When the TV set isn't going to be used
for long time or it is in thunder and
lightening, please pull out the plug from AC
outlet and the antenna plug from the cover
of the TV set.
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.
5
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 apply AC 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 semiconductorequipped 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 500
o
F to 600
o
F .
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. (500 o 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. (500 o 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).
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 productfrom 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:
10
11
3. FEATURES AND TECHINICAL DESCRIPTION
FUNCTIONS:
1.181 channels 2.I
2
C bus control
3. Auto scan 4.Audio/video input/ output interfaces
5. Multiple picture modes selection 6.Blue screen
7 NTSC + ATSC 8.CCD
9. SLEEP TIMER 10.Q.VIEW
11. V-CHIP 12. ARC (LETTERBOX/ZOOM / FULL)
4. Adjustment
A. Factory adjustment information
Specific operation: use remote controller
Press “MENU” Æ “8”Æ”8”Æ”9”Æ”3” buttons in sequence to enter into factory mode.
Press “MENU” to enter into next factory menu.
Press [CH+] / [CH-] to select items and press [VOL+] / [VOL-] key, to make data
adjustment of corresponding factory menus.
Press “EXIT” key to exit factory mode.
B. Maintenance menu (Table 8)
P1：
Items Preset Remark Description
H PHASE 0 ~
31
14 ★
Horizontal shift
V SIZE 0 ~ 63 20 ★
Vertical amplitude
V POS 0 ~ 7 2 ★
Vertical shift
V LIN 0 ~ 63 29 ★
Verti cal slop
V SC 0 ~ 63 32 ★ S emendation
PARABOLA 0 ~ 63 32 ★
S-correction
TRAPEXIUM 0 ~ 63 32 ★ Echclon distortion correction
H SIZE 0 ~ 63 32 ★
Horizontal amplitude
CORNER 0 ~ 63 40 ★ TOP Verti cal distortion correction
注：
P2：
Items Preset Remark Description
RC 0 ~ 255 120 ★
White point R
GC 0 ~ 255 120 ★
White point G
BC 0 ~255 120 ★
White point B
RD 0 ~ 127 70 ★
Black level offset R
12
BD 0 ~ 127 75 ★
Black level offset B
SB 0 ~ 127 47 ★ Aassistant brightness adjust
VK 0 ~ 1 0 ★ Horizontal line choice [field surge stop choice]
WB BRI 0 ~ 127 47 ★ Horizontal line brightness
P3：
Items Preset Remark Description
RB YUV -128~ 128 0 ◆
IN YUV，
Black level offset R
GB YUV -128~ 128 0 ◆
IN YUV，
Black level offset G
BB YUV -128~ 128 0 ◆
IN YUV，
Black level offset B
RD YUV -128~ 128 0 ◆
IN YUV，
White point R
BD YUV -128~ 128 0 ◆
IN YUV，
White point B
CR PEDDOT
0~15
8 ◆ CR benchmark voltage adjust
CB PEDDOT 0~15 8 ◆ CB benchmark voltage adjust
CRCB PED ON 0~1 1 ◆ YUV benchmark voltage switch
CRCB GAIN UP 0~1 0 ◆ YUV benchmark voltage plus
P4：
Items Preset Remark Description
VIF VCO OK OK ◆ Picture IF adjust
S TRAP OK OK ◆ Sound frequency adjust
RF AGC 0 ~ 127 35 ◆
AGC adjust
VIDEO LVL 0 ~ 7 4 ◆ Video demodulation output voltage control
P5：
Items Preset Remark Description
OSD HP 0 ~ 63 35 ◆ OSD Horizontal vision position adjust
OSD VP 0 ~ 31 21 ◆ OSD Vertical vision position adjust
H TONE 0 ~ 1 0 ◆
Translucence ON-OFF
A OSD 0 ~ 1 0 ◆ A/D OSDchoice; 0 = D OSD; 1 = A OSD;
OSD L 0 ~ 1 0 ◆ D OSD output voltage choice; 0 = 70%; 1 = 90%
TITLE 0 ~ 127 57 ◆ OSD title color choice
MENU 0 ~ 127 79 ◆ OSD color choice
MENU HL 0 ~ 127 57 ◆ OSD pitch on color choice
P6：
Items Preset Remark Description
ENG 0 ~ 1 1 №
English OSD ；ON = Y；OFF = N
FRE 0 ~ 1 1 №
French OSD ON = Y；OFF = N
SPA 0 ~ 1 1 №
Spanish OSD ON = Y；OFF = N
POR 0 ~ 1 0 №
Portugal OSD ON = Y；OFF = N
DVD MD 0 ~ 3 1 №
DVD signal format，0:CVBS；1:YC；2:YUV；3：hold
DVD OFF T 0~ 127 50 № Power off DVD off delay time
2DVD BLK T 0~ 255 70 № Tv to DVD black screen time
13
P7：
Items Preset Remark Description
ON DLY T 0 ~ 15 6 №
Power on black screen time；0-15s
AVS MUTE TIM 0 ~ 255 30 № Change channal black screen time;10ms
LOGO COLOR 0 ~ 7 1 № Label color choice
LOGO 0 ~ 1 0 № Label choice ON-OFF ON =Y; OFF =N
INT AUDIO 0 ~ 1 1 №
Inside volume control choice；ON = IN；OFF = OUT
PWM
BTSC 0~1 0 ◆ MTS ON-OFF
FAC SW 0 ~ 1 0 №
Factory adjust hotkey；ON = Y；OFF = N
POW MD 0~3 0 №
Power 0=standby，1=power ON，2=memory，3=else
C_10164/5 070331 № ATV software edition
P8：
Items Preset Remark Description
AUTO/N/PM/PN 0 ~ 1 1 ◆ AUTO/N/PM/PN function choice
AUTO/N/N4/P 0 ~ 1 0 ◆ AUTO/N/PM/PN function choice
PAL 0 ~ 1 0 ◆
PAL；0 = N；1 = Y
NTSC 0 ~ 1 1 ◆
NTSC；ON = Y；OFF = N
N443 0 ~ 1 1 ◆
NTSC4.43；ON = Y；OFF = N
P358 0 ~ 1 0 ◆
3.58PAL；0 = N；1 = Y
PAL M 0 ~ 1 0 ◆
PAL – M；ON = Y；OFF =N
PAL N 0 ~ 1 0 ◆
PAL-N；ON = Y；OFF = N
P9：
Items Preset Remark Description
AV2 0 ~ 1 1 ★
AV2；1= Y；0 = N
YUV 0 ~1 1 ★
YUV；1 = Y；0 = N
DVD 0 ~ 1 0 ★
DVD；1= Y；0 = N
P10：
Items Preset Remark Description
Y DL 0 ~ 7 5 № Brightness signal delay time adjust
Y LPF 0 ~ 1 0 № Brightness signal output low pass choice switch;0 =
flat out; 1 = low out(fc = 700kHz)
BLK STE OFF 0 ~ 1 1 № Black voltage extend function switch; 0 = ON;
1=OFF
GAMMA 0 ~ 3 3 № GAMMA adjust control; 0 = OFF; 1~3 = ON(3
mode)
ABCL 0 ~ 1 0 № AUTO brightness and contrast limit; 0 = AUTO
contrast limit; 1 = AUTO brightness and contrast limit
ABCL GAIN 0 ~ 1 0 № AUTO brightness and contrast limit plus switch; 0 =
low; 1 = high
14
U DL 0 ~ 3 0 № U signal delay adjust
V DL 0 ~ 3 0 № V signal delay adjust
LCNR 0 ~ 63 32 № Down pillow shape distortion
P11：
Items Preset Remark Description
C TRAP 0 ~ 3 2 № Color trap wave adjust
H VCO 0 ~ 7 3 № Row frequency adjust
SIF BFP 0 ~ 3 0 № SIFstrap pass width choice
SIF45 G DN 0 ~ 1 0 №
4.5Mhz sound plus attenuation switch； 0 = normal； 1
= attenuation。
STRAP OFF 0 ~ 1 0 № Sound trap wave switch
AFC1 UP 1 0 ~ 1 1 № Level AFC1 plus adjust
AFC1 UP 2 0 ~ 1 1 № Level AFC1 plus adjust
AFC2 DOWN 0 ~ 1 0 № Level AFC2 plus adjust
AFC2 UP 0 ~ 1 1 № Level AFC2 plus adjust
You can change the DATA with “*” mark when necessary.
5. WIRING CONNECTION DIAGRAM
16
6. Circuit Explanation
1、Microprocessor and Small signal processing: super monolithic integrated circuits ：
R2J10165GF
R2J10165GF is an integrated circuit decoder, containing intermediate image
amplifying, horizontal and vertical scan, small signal processing, color decoding,
I2C bus control.
Information introducing functions and testing data for maintenance is listed in
Table 1.
Table 1
SYMBOL PIN DESCRIPTION
Working
Voltage (V)
Ground
Resistance (Ω)
STANDBY 1 STANDBY
4.88（ON/OFF）
21.6K
MUTE 2 MUTE 1.90 25.6K
AV1/AV2(SW1) 3 AV1/AV2 SWITCH 4.86 25.6K
5V-C(DVD-C) 4 5V CONTROL 0.03 25.6K
GND 5 GND 0 0
1.2V-C 6 DTV 1.2V CONTROL
4.69/0.03（ATV /DT V）
25.6K
DTV RESET 7 DTV RESET 0.03 2.8K
SREQ 8 SREQ 0.14 2.57K
AFT(AD0) 9
SIF auto phase control
4.87 154.4K
DEF VCC(8.0V) 10 8V POWER 8.06 0.68K
V RAMP(+) 11 V RAMP(+) 2.95 11K
VRAMP CAP 12 VRAMP CAP 2.35 28M
AFC 1 FIL 13
SIF auto phase control
filter
3.12 69.5K
DEF VCC(5.0V) 14 5V POWER 4.97 1.46K
H OUT 15 Horizontal SIGNAL OUT 0.83 1.55K
FBP IN 16 FBP IN 1.10 27K
DEF GND 17 GND 0 0
VRAMP AGC 18 VRAMP AGC 2.15 27M
Cb IN YcbCr 19 Cb IN YcbCr 1.18 27M
Cr IN YcbCr 20 Cr IN YcbCr 1.17 27M
C-APC 21 C-APC 2.96 27M
XTAL 22 XTAL 3.22 28M
CHROMA GND 23 CHROMA GND 0 0
Y SW OUT 24 Y SW OUT 3.35 3.38K
TEST/EW OUT 25 TEST/EW OUT 2.74 19.3K
MCU 5.7 VDD OUT 26 MCU 5.7 VDD OUT 5.54 46K
PAL ID FIL 27 PAL ID FIL 2.26 27M
8.7V REG OUT 28 8.7V POWER OUT 8.71 210K
EXT AU(L)IN/EXT AU2 IN 29 EXT AU(L)IN/EXT AU2 IN 3.28 27M
EXT2 IN/C IN YC 30 EXT2 IN/C IN YC 1.96 28M
CHROMA VCC(5.0) 31 CHROMA VCC(5.0) 0.17 1.46K
EXT 1 IN/YIN YC/YIN Y
CbCr
32 EXT 1 IN/YIN YC/YIN Y
CbCr
0.23 27M
17
5.7V REG OUT 33 5.7V POWER OUT 8.71 25.5K
VIF VIDEO OUT 34 VIF VIDEO OUT 4.05 0.49K
VIF GND 35 GND 0 0
VIF APC 36 VIF APC 2.30 28.3K
RF AGC 37 RF AGC 4.70 28M
VIF IN2 38 VIF IN2 1.46 9K
VIF IN1 39 VIF IN1 1.46 9K
VIF AGC 40 VIF AGC 4.81 28M
VIF VCC F/B 41 VIF VCC F/B 3.04 28M
VIF VCC(5.0V) 42 5.0V POWER 4.97 1.46K
EXT AU（R）IN/EXT AU1 IN
43
EXT AU（R）IN/EXT AU1 IN
3.29 28M
AU BYPASS 44 AU BYPASS 3.42 28M
SIF MIX F/B 45 SIF MIX F/B 2.34 27M
AU ATT（R）OUT/ATT OUT
46
AU ATT（R）OUT/ATT OUT
3.42 27M
DIRECT OUT 47 DIRECT OUT 3.21 38M
AU ATT（L）OUT/ATT OUT
48
AU ATT（L）OUT/ATT OUT
3.41 27M
ACL/ABCL 49 ACL/ABCL 3.00 6.4K
HI VCC（8.0）
50
HI VCC（8.0）
8.06 0.68K
R OUT 51 R OUT 1.85 1.9K
G OUT 52 G OUT 1.81 1.9K
B OUT 53 B OUT 1.88 1.9K
VREG VCC（8.7V）
54
VREG VCC（8.7V）
8.86 3.9M
MNITOR-OUT 55 MNITOR-OUT 0.23 9.2K
MCU RESET 56 MCU RESET 4.88 62K
P20 57 P20 4.63 6.8K
P21 58 P21 4.63 6.8K
P22 59 P22 4.63 6.8K
HLF 60 HLF 2.58 2.7M
VHOLD 61 VHOLD 0.41 33M
CVIN 62 CVIN 2.05 0.96M
P26/AD6 63 P26/AD6 4.89 19.5K
AD6/P27 64 AD6/P27 4.84 18.8K
P35/TIM21 65 P35/TIM21 4.89 25.8K
CNVSS 66 CNVSS 0 0
TEST1 Note1 67 TEST1 Note1 2.45 15.5M
TEST2 Note2 68 TEST2 Note2 4.89 29M
VSS 69 VSS 0 0
FILT 70 FILT 1.85 32.5M
VDD 71 VDD 4.90 3.9K
P36 72 P36 4.90 25.6K
P17/INT3/AD4 73 P17/INT3/AD4 4.84 25.6K
P16/INT2/AD3 74 P16/INT2/AD3 4.76 29M
P15/INT1 75 P15/INT1 0.03 25.6K
P10 76 PIN 10 4.87 13.8K
P11/SCL1 77 I2C-bus clock line 1 3.50 10.7K
P12/SCL2 78 I2C-bus clock line 2 3.96 9.5K
18
P13/SDA1 79 I
2
C-bus data line 1 3.52 10.7K
P14/SDA2 80 I2C-bus data line 2 3.85 9.5K
2. Analysis of common path circuits
High frequency television signals, received via an antenna (or transmitted through
a cable TV system) to the input terminal of the high frequency tuner UV101, are
processed for tuning and high frequency amplifying and mixing, then an analog IF
signal will go through the sound surface wave filter. Intermediate frequency signals will
be transmitted to (38) and (39) of IC201(R2J10165GF). The mixed signals of picture
video signals output from (34) of IC201.
3. Analysis of sound power amplifying circuits
Sound power amplifying circuits are composed of integrated circuits TFA9800J
and peripheral components. TFA9800J is an integrated electrical circuit . Information
introducing functions and testing data for TFA9800J maintenance is listed in Table 2.
Table 2
SYMBOL PIN DESCRIPTION
Working
Voltage (V)
Ground
Resistance (Ω)
-INV1
1
Non-inverting input 1
2.17 27M
SGND
2
Signal ground
0 0
SVRR
3
Supply voltage ripple rejection output
7.68 14.6K
Out 1
4
Output 1
7.59 4.72K
PGND
5
Power ground
0 0
OUT2
6
Output 2
7.61 4.73K
Vp
7
Supply voltage
15.67 15K
M/SS
8
Mute/standby switch input
2.95 115K
-INV2
9
Non-inverting input 2
2.14 27M
4. Analysis of vertical sync and vertical scan output circuits
The field sync signals segregated from compound sync signals are used to activate the
vertical frequency segregation system which commences when a set amount of vertical
sync pulse signals are tested. Of the sync pulse frequencies obtained from segregation,
some are transmitted to the vertical tooth wave generator. The vertical frequency tooth
wave, after geometric processing, is transmitted from (11) of IC201 (R2J10165GF) to (7) of
vertical scan output IC IC401 (LA9302).
Information introducing functions and testing data for LA9302 maintenance is listed in
Table 3. if a cylindrical color card is installed then a fluke III digital multimeter is used.
Table 3
SYMBOL PIN DESCRIPTION
Working
Voltage (V)
Ground
Resistance (Ω)
INPUT 1 Inverting input
2.95 10.5K
SUPPLY VOLTAGE 2 Supply voltage
31.6 33M
Flyback generator 3 Flyback generator
4.19 2.2M
GND 4 Ground or negative supply
0 0
Output 5 Output
17.57 10M
output stage supply 6 Output stage supply
33.05 18M
Input 7 Non-inverting input
2.95 11.85K
19
5. Analysis of horizontal sync and horizontal scan output circuits
As the horizontal oscillation circuit is installed inside IC201 (R2J10165GF), .
Some brightness signals including compound sync signals are transmitted to the
internal sync segregation circuits, where horizontal sync and vertical sync pulses are
segregated. Horizontal pumping signals are transmitted from (15) of IC201 to
horizontal promotion transistor Q401 (2SC2383), and then drive the H-DRIVE
transformer. After being amplified through it switches power transistor Q402 (2SC5885)
to control the horizontal scan of the electronic-beam.C418 is a horizontal S correction
capacitor and L401 is for horizontal linear inductor. T401 is a horizontal output
transformer. The horizontal return pulse output from (ABL) of T401 is transmitted to pin
(49) of IC201 who controls ABL circuits. ABL avoid high-voltage over rated value that
will cause X-ray and affect your health.
6. Analysis of video amplifying circuits
The video amplifying circuits are comprised of V501, V502, V503 and peripheral
components. R, G and B signals output from IC201 (51), (52) and (53), 3 video power
transistor are available for amplifying the input R, G, B. White balance adjustment is
completed through IC602 under control of an I2C serial bus control system.
7. Maintenance Service and Trouble shooting
A. Principle integrated circuits
A1. 21 INCH color TV set composed of the following sections
(1) Small signal processing: super monolithic integrated circuits IC201
(R2J10165GF). and memory IC602 (AT24C16).
(2) Sound power amplifying: integrated circuits IC701 (TFA9800J).
(3) Horizontal and Vertical scan output circuits: Vertical output integrated circuits
IC401 (LA9302), Horizontal output transistor Q402 (2SC5885), Horizontal
flying back transformer T401 (JF0501-32806).
(4) Switch power supply: switch transformer T901 (BCK-80-F404LE), power IC
IC901 (TEA1506/N1), MOSFET (7N60B/IRFBC40).
A2. Main integrated circuits:
(1) R2J10165GF Microprocessor
Picture IF/sound IF/video processing/H and V
Scan/color decoding
(2) LA9302 Vertical output integrated circuits
(3) TFA9800J Sound power amplifying integrated circuits
A3. Error Detection Process
1.
Check to see if
Fuse is normal
No light and sound
Abnormal
Check D901~D904,
C914, IC901, Q901 etc.
Check to see if the
collector voltage of
D909 is 13.5V
The failure ofhorizontal
unit orN204
Check to see if ,
ZD201 8v ,
is normal
Check the control
voltage of Q207 or
CPU
p
ower pin
Check IC602 ,ect
Normal
Normal
Normal
Abnormal
Check to see 110V、180V
etc. voltage is normal
Test to see all terminal
Resistance of load
Check switch
power unit
Check to see if
rectifying tube
is normal
Check the
Loader
Change
rectifying diode
Abnormal
Normal
Abnormal
Normal
Abnormal
Normal
Abnormal
20
2
Normal
Abnormal
Video amplifying
board is abnorma
l
T401, D402 or
C419,C420 are
Q402 is not well
welded or open
Higher
Lower
Inspect the circuit
from pin51 、52、
53 of IC201 to
video amplifying
Check the voltage
of Q402 collector is
normal
InspectT402、R427
etc
.
Normal
Abnormal
NO
YES
Abnormal
Normal
Normal
Abnormal
Abnormal
Normal
Check the voltage
of all pins of SK501
Heater Resistor
open
Check to see if be
voltage of Q402 is
existed?
Check the circuit
from pin15 of IC201
to Q402
No raster
Whether G2 voltage is normal
Change wrong component
or check peripheral circuit
Check to see if +8V
voltage is normal at
PIN 10 or 14 of IC201
Check X201、IC201 and
peripheral circuit of IC201
Check +8V ,+5V power
Abnormal
Normal
Test filament voltage Test the base voltage of Q402
21
3
Check to see if the deflection
yorks are connected, C404 is
open or weldless. Inspect
peripheral component of IC401
and IC401 itsel
f
Inspect +28V
p
ower suppl
y
Inspect IC201
and peripheral
components of
Change IC201 and
repair circuit
Normal
Yes
No
Yes
No
Check to see if the voltage of
pin 11 and pin12 of IC201 is
normal
Check to see if voltage of pin2 at
IC401 is normal
Yes
No
Make R429 open. Multimeter is at range RΧ1K. Red probe
connects to ground. Touch No.5 of IC401 with black probe.
Bright line flashes for a moment
Horizontal bright line
4.
Snowy noise exist
No sound and picture
Not exist
Exist
Check to see if RAGC is
at 00 mode
Check to see if voltage
output available at tuner
Enter D-MODE with
customer remote controller.
Make RAGC tuned to 25 or
so. Noise on picture just
disappears.
Inspect SAW101、
IC201and PIF
22
part
Yes
No
Antenna
or tuner is
abnormal
Inspect the
circuit from
CPU to tuner
Yes
No
5
Make C713/C714 open. Multimeter is at band RΧ1K. Red
probe connect to ground. Touch No.6 OR No.8 of IC701 with
Picture exists but no sound
Make C713 OR C714 collector
open. Touch No.6 OR No.8 of
Q702 with black probe to see if
Power amplifier is abnormal.
Inspect IC701 and peripheral
components of IC701
23
6.
Inspect C713、C714
Check to see if
+16V exists
Inspect IC201 and peripheral
component of IC201
Inspect +16V
power supply
Yes
No
Yes
No
No noise
Have noise
Inspect
Inspect the circuit from
No.51 of IC201 to
No.3 of SK501
Yes
No
Change V501 or
weld V501 again
Check to see if voltages of SK501
are normal
Lack of red
Check to see if V501 is
open or not well welded
Inspect R502,R503,R504
Yes
No
Poor color / tint,
good sound
Before calling service personnel, please check the following chart for a
Symptom
Check these things
TV is not
turned on
Spots appear
on the screen
Lines appear
on the screen
Good picture ,
no sound
Be sure the power cord is plugged in.
The MUTE function may be used.
Adjust the volume of the TV set.
The contrast, color and tint may be incorrectly adjusted.
If you change the direction of the TV while the TV is on, the picture
may suffer from color shading. If so, turn off the TV and allow about
30 minutes to cool, then turn on the TV again.
The broadcast signal may be jammed by other electrical sources such
as cars, motorcycles, electric trains, high tension lines, neon signs, hair
dryers.
The broadcast signal may be jammed by other TV receivers, personal
computers, and TV games, as well as interference from radio stations.
Interference may be due to broadcast waves reflected from mountains
or buildings.
Check if the direction of the antenna is changed.
The antenna may be disconnected or falling out.
Check if the direction of the antenna is changed.
The batteries in the remote control may be exhausted.
The batteries may be improperly installed.
Check if there are obstacles between the remote control and the
remote (infrared ray) receiver.
Check if there is strong light interference around the remote (infrared)
receiver.
Check if the main power is ON.
Double images
or ghosts
Snowy picture or
black screen
The following conditions are not troubles
Clacking noise inside
the receiver
It may result from the expansion of the shell caused by a temperature
change. This will not affect the picture and sound quality.
Uneven colour in a
certain portion of the
screen
If the picture is too bright, this may occur according to the nature of
the pictures. Reduce the contrast, it may resume to normal.
Troubleshooting
CAUTION
In case of problems, have your TV serviced by qualified personnel.Never
attempt to service the set yourself since opening the cabinet may expose
you to dangerous voltage or other hazards.
possible cause to the trouble you are experiencing.
8. CIRCUIT DIAGRAM
24
MONITOR
RESET
CCD
CCD HLF
FILT
VCC
MUTE
FACTORY
KEY
PROTECT
REMO IN
AV SW0
AV1/AV2(SW1)
VRAMP AGC
VRAMP OUT
DEF OUTPUT GND
FBP IN
H OUT
DEF Vcc(8V)
R OUT
G OUT
B OUT
Y SW OUT
X-TAL4.43
REG OUT
SYS : 14"/21" ULTIMICRO W/CCD V-CHI P+DVD
SIZE : A 1
8.7V REG OUT
MCU 5.7V
CCD
CVBS
V-HOLD
SCL
SDA
+5V
A
B
C
D
21345678910
11 12
GND
SCL1
SDA1
CNVSS
VSS
S-IN
GND
AFT
VRAMP CAP
AFC1
DEF Vcc(5V)
Cb-IN
Cr-IN
C APC
CHROMA GND
EW OUT
PAL ID FLT
EXT AU(L) IN
C-IN
CROMA Vcc(5V)
CVBS/Y IN
5.7V REG OUT
VIF VIDEO OUT
VIF GND
VIF APC
RF AGC OUT
VIF IN2
VIF IN1
VIF AGC
VIF
VIF VCC(5V)
EX AU(R) IN
AU BYPASS
SIF MIX FB
AU ATT(R) OUT
FM DIRECT OUT
AU ATT(L) OUT
ACL/ABCL
HI Vcc(8V)
VREG VCC
VCD F/B
5.5V
28V
13.5V
16V
107V255V
3
1
567
KB40
SDA2
SCL2
INV1
SGND
SVRR
OUT1
PGND
OUT2
VP
M/SS
INV2
L-OUT
R-OUT
V-OUTL-OUTR-O UT
AV1-V-IN
AV1-L-IN AV1-R-IN
Y-IN
CB-IN CR-IN
Y-IN
C-IN
NC TU
RF-AGC
SCL +33V VCC IFA-O
IF-AGC
IFD1-OUT
IFD2-OUT
AUDIO-L
AUDIO-R
IFP
IFN
IF-AGC
CR
CB
Y
CVBS
C
SPDIFO
5V
5V-C
1.2V-C
RESET
SDA
SCL
SCITXDO
SCIRXDO
SCISCKO
SREQ
COL
180V
B+
AFC
HEATER
ABL
SDA
SCITXDO
SCIRXDO
SCISCKO
5V-C(DVD-C)
1.2V-C
DTV RESET
SREQ
AV SW2
YUV-R-IN
YUV-L-IN
AV1AVY-OUTTVY1
Y-SW
DTVYDTV
CB-OCB
DTV
CR
CR-O
Y-OUT
AV-SW3
Y
V-O
DTV-VLDTV
L-O
R-O
DTV
R
L1TVL-OUTAVAV1
AV1
AV
V-OUT
TV
Y2
AV1
AV
R-OUT
TV
R1
VOUT
ROUT
DVD
AV2
DVD LOUT
AV2
DVD
AV2
AV2-V-INAV2-L-INAV2-R-INDVD-Y-INDVD-L-INDVD-R -IN
STANDBY
1
35
7
9111315
2
4
6810121416
Vcc
Ctrl
Dem I_s ense
Driver
Drain
Input
Supply
Flyback
Output
Output
Input
AV2
DVD
AV2
LOUTDVD
AV2
DVD
ROUT
VOUT
DVD-CVBS-IN
V-OUT
L-SW
R-SW
AV2/DVD-SW
AV2/DVD-SW
DTV/YUV-SW
DTV/YUV-SW
KEY
STANDBY
REMO
+5V
GREEN
RED
R943
27/2W
R425
10K
X201
4.43MHz
123
4
5
678
IC602
24C016A
C216
0.47uF/16V
ZD201
8V2
L401
35uH
R411
1K
1/4W
C409
4.7nF/50V
C408
22uF/35V
R427
1K
Q403
2SC1815
R421
33K
ZD401
20V
C419
470pF/2KV
D403
BYW33J
Q401
2SC2383
R415
JUMP
R935
39K
0.5W
T402
Q402
2SC5885
CN403
DY
R423
3.9 5W
CN401
R625
3.3K
C607
103
C201
103
C609
103
C215
104
ZD101
UPC574
C106
1uF/50V
Q209
BC337-40
C245
1nF/50V
R430
120K
R426
100
R412
47/0.5W
Q908
BC337-40
C931
47uF/16V
R208
15K
C206 10uF/16V
R938
100 1/2W
ZD407
5V1
C234
56nF/50V
D201
1N4148
D916
BAV21
R239
27/2W
C235
470pF
C410
1uF/160V
R952
OPEN
R410
1K
R453
JUMP
D402
S5295
C225
103
C244
47uF/16V
R250
100
R251
100
R252
100
C418
0.47uF/250V
C416
470pF
R422
330K
C414
10uF/16V
R420
33K
C242
47uF/16V
R419
1K/0.5W
R418
10K
0.5W
C413
100nF/100V
D205
1N4148
R213
2.2K
R601
22K
R603
22K
R618
10K
R602
22K
C207
2200pF
R617
6.8K
C420
10nF/2KV
R428
10K
C417
22uF/250V
R616
6.8K
R606
22K
R613
100
R608
22K
R619
4.7K
R416
22K/0.5W
R417
1K/2W
123
4
CN402
D204
1N4148
C123
1uF/50V
C211
1uF/50V
C210
0.1uF/50V
C238
47uF/16V
R211
2.2K
R210
2.2K
R209
2.2K
1
2
3
4
5
CN201
Q909
BC337-40
Q207
BC337-40
R236
15 1/2W
R922
12K/2W
C202
470uF/16V
C203
103
R609
22K
R626
22K
C608
47uF/16V
R203
22K
123
4
5
6
7
89
10
1112131415
16
IC802
TC4052
123
4
5
6
7
89
10
1112131415
16
IC803
TC4053
R824
47K
R822
47K
R817
75
R830
75
R826
47K
R827
47K
R110
220
R109
220
R111
220
R829
47K
R819
47K
R820
1K
R828
1K
R814
75
R825
1K
R823
1K
C802
2.2uF/16V
C815
2.2uF/16V
C827
10uF/16V
C831
2.2uF/16V
C826
2.2uF/16V
C119
103
R810
4.7K
R809
4.7K
R212
10K
1
2
3
4
CN601
1
2
3
4
5
CN602
C118
1uF/16V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
28293031323334353637383940
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
656667686970717273747576777879
80 25
26
27
20
21
22
23
24
48
47
46
45
44
43
42
41
IC201
R2J10165GC
C120
47uF/16V
C121 103
C236
103
R942
100
R234
100
C232
1uF/50V
C231
1uF/50V
C603
103
R429
100
C243 104(M)
C229
47uF/16V
C230
103
R604
22K
R607
22K
R605
3.3K
C605
100pF
C604
100pF
R622
10K
R621
22K
R615
1M
C241
104
R624
3.3K
C613 103
C611
220
R627
1K
C610
1uF/16V
R202
10K
C205
103
C204
47uF/16V
R219
22K
R204
22K
R205
22K
C214
47uF/16V
C213
103
R611
47K
Q601
2SC1815
R610
10K
R620
68K
C407
47uF/160V
C825
10uF/16V
R225
47K
R811
1K
R821
1K
R818
47K
C824
10uF/16V
C823
470uF/16V
Q206
2SC1815
C805
4.7uF/16V
R229
100
R808
75
R227
22K
R226
47K
R920
0.27/2W
R701
1.2K
R702
22K
C705
4.7nF
C706
1uF/16F
CN701
C713
1000uF/16V
Q701
2SA1015
C714
1000uF/16V
CN702
C707
1uF/16V
C704
4.7nF
R704
22K
R703
1.2K
R707
5.6K
R705
22K
R706
10K
D701
1N4148
C709
47uF/16V
C701
2200uF/25V
C710
4.7uF/16V
C702
1uF/16V
C703
1uF/16V
R114
100
C122
0.47uF/16V
C812
2.2uF/16V
C233
0.47uF/50V
R233
8.2K
R431
4.7K
R232
8.2K
C227
0.47uF/16V
C228
0.33uF(M)
C934
1uF/16V
C115
47uF/16V
C933
47uF/16V
C237
47uF/16V
C932
47uF/16V
R237
3.3K
R623
470
C612
560pF
C606
100
D203
1N4148
D202
1N4148
R424
220K
0.5W
12
3456789
IC701
TFA9800J
C708
100uF/16V
C712
10uF/50V
R709
24K
R708
100K
Q702
2SC1815
D702
1N4148
L902
91uH
C922
470uF/16V
C921
470pF
D912
RU4Z
IC903
TL431
CN902
D915
1N4148
R915
10K
R939
47
R909
0.15 1/4W
ZD902
16V 1/2W
C909
22nF/50V
D905
IN4148
R902
120K 1/2W
8
3
2
6
4
R937
47 1/2W
R940
33K
R924
100K
R925
22K
Q904
2SC1815
R932
180K 1/4W
C912
4.7nF/400V
R916
56K/2W
D907
RU2
C916
1000uF/25V
R934
100K
C926
470uF/16V
R931
15K
C929
10nF(M)
C927
15nF/50V
Q906
2SA1013
ZD903
9V1
C920
470uF/35V
C918
1000uF/16V
C925
10uF/100V
C924
100uF/160V
C915
470pF
C917
470pF
C919
470pF
C923
470pF/1KV
D909
BYW33J
D910
BYW33J
C903
4n7/500v
R908
1K
R912
560
R907
270K
D908
RU2
Q903
BC337-40
C907
10uF/100V
Q902
BC327-40
C908 47uF/35V
C910
104pF/50V
R905
10K
R913
22K
R910
0.15 1/4W
C913
2200pF/400VAC
D906
EU2Z
R914
100
R919
5.6M 1/2W
1
2
34
5678
IC901
TEA1506P
C904
4n7/500v
C911820pF/2kV
C902
47nF/275VAC
Q905
BC547
R929
820
C928
47nF/50V
FB901
Q901
10N60B
R903
1.5 7W
D901-904
EM1C
C914
220uF/200V
ZD901
20V 1/2W
R911
4.7K
R904
390K
R906
1K
R933
220K 1/4W
R928
8.2K
1
5
CN901
TH901
7 270VAC
R936
2.2K
R926
22K
VR902
1k
R930
3.9K
D913
RU2
D911
BUW33J
IC902
P621
L901
C901
0.22uF/275VAC
F901
T3.15A/250VAC
12
3
45
6
7
8
910
11 12
13
14 15
CN102
12
3
45
6
7
8
910
11 12
13
14 15
CN101
R240
100
T401
JF0501-32806
T901
10
7
9
8
4
3
6
5
2
1
SK806
S-VIDEO
1
2
3
4
5
6
7
8
9
10
11
UV101
TUNER
ET-55DHR
C101
103
1
2
3
4
5
SAW101
D1510C
C105
100nF
L103
22uH
R106
100
R107
100
C102
56pF
C103
56pF
JK103
C251
220nF
R228
390
ZD202
8V2
ZD203
8V2
ZD204
8V2
C107
10nF
R238
100
Q602
2SC1815
R235
820
R102
OPEN
C250
1nF
C208
1nF
L208
JUMP
L205
JUMP
L206
JUMP
L207
JUMP
L204
JUMP
C618
10nF
C619
10nF
R201
47
C822
2.2uF/16V
C828
2.2uF/16V
R836
1K
R834
1K
R837
47K
R835
47K
C222
10nF
C820
103
C819
220uF/16V
Q201
2SC1815
123
4
5
6
7
89
10
1112131415
16
IC804
TC4053
R112
220
R806
4.7K
R807
4.7K
123
4
5
6
7
89
10
1112131415
16
IC801
TC4052
R216
100
R218
100
Q203
2SC1815
R217
100
Q202
2SC1815
R215
2.2K
R220
2.2K
R214
2.2K
C117
2.2uF/16V
C212
2.2uF/16V
C807
2.2uF/16V
JK803
JK804
JK805
JK806
JK801
JK802
C809
2.2uF/16V
C838
2.2uF/16V
C808
10uF/16V
R813
1K
R831
1K
R816
47K
R832
47K
R812
75
C840
2.2uF/16V
C839
2.2uF/16V
C842
10uF/16V
R805
1K
R803
1K
R804
47K
R802
47K
R801
75
123
4
5
6
7
89
10
1112131415
16
IC805
TC4053
J2
J3
R207
22K
RL901
Q907
2SC1815
D914
1N4148
R629
100
R944
3K
R918
5.6M 1/2W
D405
1N4148
C218
2.2uF/16V
C219
2.2uF/16V
C817
2.2uF/16V
C223
2.2uF/16V
C814 2.2uF/16V
C804
2.2uF/16V
C811
2.2uF/16V
C810
2.2uF/16V
C806
2.2uF/16V
C816
2.2uF/16V
C803
2.2uF/16V
C801
2.2uF/16V
C818
2.2uF/16V
C813
2.2uF/16V
C821
2.2uF/16V
C829
2.2uF/16V
C830
2.2uF/16V
R901
330K 1/2W
VR901
TVR-471
R403
1.5K/0.5W
R401
OPEN
1
2
3
4
5
6
7
IC401
LA9302
C403
3.3uF/16V
R405
12K
R406
27K
C406
2200uF/25V
R414
390/1W
C404
22nF/50V
C405
220nF/50V
R413
2.2/0.5W
R409
560
D401
BYW33UJ
R407
12K
C401
470uF/35V
R408
2.2/0.5W
R404
1.5K/0.5W
C402
100uF/35V
J1
C125
47uF/16V
13
2
IC904
7805
C239
470uF/16V
C240
10nF
C832
2.2uF/16V
C835
2.2uF/16V
C834
2.2uF/16V
C833
2.2uF/16V
R248
JUMP
R247
JUMP
C116
103
CN202
CN202
D917
RU4Z
C930
470pF
C935
1000uF/16V
R927
91uH
123
4
CN903
13
2
4
IC905
78R05
R941
4.7K
R945
10K
C936
1000uF/16V
C937
10nF
C248
10uF/16V
R244
33K
R243
56K
R245
1K
Q211
2SC1815
C939
1000uF/16V
7
9
R710
15K
D918
1N4148
C941
220uF/16V
C942
10uF/16V
C616 103
ZD601
5V1
ZD602
5V1
ZD603
5V1
ZD604
5V1
R948
10/2W
W206
10 1/4W
C946
680pF/2KV
C943
470uF/16V
R447
JUMP
C428
470uF/35V
D404
BYW33J
C427
470pF
R450
0.68/1W
R402
330/2W
R432
3.9 5W
R454
1K/1W
R923
10K
ZD403
5.1V
R632
4.7K
123
4
5
6
7
89
10
1112131415
16
IC806
TC4053
C843
2.2uF/16V
C841
2.2uF/16V
JK1
R833
75
R449
560 3W
R448
560 3W
R631
1K
R630
1K
CN603
CN604
R634
2.2K
C130
2.2uF/16V
C131
2.2uF/16V
R119
56K
R116
47K
R123
220
R120
560
R118
56K
R117
47K
R122
220
R121
560
Q101
2SC1815
Q102
2SC1815
L905
1uH
C412
100nF/100V
C429
470pF
SCALE: SHEET: OF
REVISION RECORD
DRAWN: DATED:
DATED:CHECKED:
QUALITY CONTROL: DATED:
DATED:RELEASED:
COMPANY:
TITLE:
A
B
C
D
DATE:
123456
D
C
B
A
CODE: SIZE: DRAWING NO : REV:
LTR ECO NO: APPROVED:
STANDBY
CH+
CH-
VOL+
TV/AV
VOL-
MENU
13579111315
246810121416
S-V
YUV
AV1
DTV
TV
S-V
YUV
AV1
DTV
TV
C-S
C-W
C-TS
C-TW
MAD
C-ND
C-L
Vref
SAP
C-SDE
C-R
C-SS
C-MO
CERC-ADJ
C-PH
C-P2
C-P1
V-CAP
DGND
AGND
C-DEC
C-M
C-NR
VEI
VEO
INR2
INR3
RECR1
RECR2
TRER
BASSR1
BASSR2
Rext
Cext
PSEUDO
BASSL2
BASSL1
TREL
RECL2
RECL1
INL3
INL2
REFIN VCC
INR1
ROUT
SCL
SDA
LOUT
INL1
OUTL
OUTR
COMP
VCC
SDA
SCL
+180V
BGR
+8v
BGR
S608
R640
100
C11
10uF/16V
1
2
3
OPT601
1
2
3
4
5
CN1
S601
S602
S603
R639
27K
S605
R636
3.9K
S604
R637
4.7K
S606
R635
2.7K
R638
8.2K
LD1
CN301
CN301
C311
10uF/16V
C336
10uF/16V
C327
10uF/16V
C318
10uF/16V
C317
10uF/16V
C335
103
C334
47uF/16V
L302
100uH
L301
100uH
C305
103
C306
47uF/16V
R312
47K
R310
47K
C340
10uF/16V
C332
10uF/16V
R309
330
R313
330
R311
10K
C333
220nF
C331
15nF
R314
8.2K
R308
8.2K
C337
8200pF
C338
68nF
C339
68nF
C330 68nF
C329
68nF
C328
8200pF
C326
1uF/16V
123456789
1011121314 15
16171819202122232425262728
IC302
R2S15900SP
R306
100
R307
100
C314
1uF/16V
C316
1uF/16V
C315
10uF/16V
C322
100nF
C323
2.2uF/16V
C321
100uF/16V
C325
15nF
C313
10uF/16V
C319
2.2uF/16V
C324
4.7uF/16V
C320
4.7uF/16V
X301
CSB503
R305
2.2K
C309
4.7uF/16V
C307
0.22uF/16V
C312
470nF
C308
10uF/16V
C310
100uF/16V
R304
100
R303
100
C303
100nF
C301
4.7uF/16V
C304
10uF/16V
C30247nF
R301
150
R302
8.2K
123456789
10111213141516 17
181920212223242526272829303132
IC301
TDA9850T
C347
10uF/16V
ZD301
10V
Q301
2SC1815
R315
100 1/4W
VD501
IN4148
VD503
IN4148
VD504
IN4148
VD502
IN4148
R516
10K
C504
100uF/16V
V504
2SA1015
L502
100uH
C505
47uF/16V
C506
103
1
2
3
4
5
XS501
R514
100
R515
100
R513
100
1
2
3
4
XS502
C508
102/2KV
IC53
V502
C2688
R509
330
R510
2.7K
R505
12K 2W
R502
2.7K 1/2W
C502
330pF/25V
V503
C2688
R511
330
R512
2.7K
R503
12K 2W
R506
2.7K 1/2W
C503
330pF/25V
C501
470pF/25V
R501
2.7K 1/2W
R504
12K 2W
R508
2.7K
V501
C2688
R507
330
RED
VD1
2SC1815
R14
20K
R15
20K
1
2
CN4
1
2
CN5
L501
10uH
R519
56
R521
330
R520
330
25
Sincere Forever
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