I. Safety Instructions .................................................................................................................................. 2
II. Specifications ......................................................................................................................................... 4
III. Level List of Equipments & Instruments Required for Production ................................................ 6
IV. Applying Adhesive on Main PCB ........................................................................................................ 6
V. Wiring Diagram...................................................................................................................................... 9
VI. Block Diagram.................................................................................................................................... 13
VII. Disassembly........................................................................................................................................ 15
VIII. Input Signals & Equipments List for Alignment ........................................................................... 15
IX. E2PROM (IC602) Setting .................................................................................................................... 16
XI. Transistor and IC Identification ......................................................................................................... 28
XII. Schematic Diagram ............................................................................................................................ 29
XIII. Component Diagrams ....................................................................................................................... 30
XIV. Assembly Instruction...................................................................................................................... 36
A. Front cabinet block .............................................................................................................................. 36
B. CRT block ........................................................................................................................................... 37
C. Assembly of chassis block .................................................................................................................. 38
D. Whole unit without rear cabinet block .................................................................................................40
E. Rear cabinet block .............................................................................................................................. 41
XV. Packing ............................................................................................................................................... 42
XVI. Exploded View Diagram and Parts List ......................................................................................... 43
A. TV unit ................................................................................................................................................ 43
B. Remote handset unit ........................................................................................................................... 46
1
I. Safety Instructions
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
The lightning flash with arrowhead symbol,
within an equilateral triangle, is intended to alert
the user to the presence of uninsulated “dangerous
voltage” within the product’s enclosure that may
be of sufficient magnitude to constitute a risk of
electric shock to persons.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR
BACK). NO USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL ONLY.
PRECAUTIONS DURING SERVICING
1. In addition to safety, other parts and assemblies are
specified for conformance with such regulations as
those applying to spurious radiation. These must
also be replaced only with specified replacements.
Examples: RF converters, tuner units, antenna
selection switches, RF cables, noise-blocking
capacitors, noise-blocking filters, etc.
2. Use specified internal Wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
3. Use specified insulating materials for hazardous
live parts. Note especially:
1) Insulating Tape
2) PVC tubing
3) Spacers (insulating barriers)
4) Insulating sheets for transistors
5) Plastic screws for fixing micro switches
4. When replacing AC primary side components
(transformers, power cords, noise blocking
capacitors, etc.), wrap ends of wires securely about
the terminals before soldering.
5. Make sure that wires do not contact heat generating
parts (heat sinks, oxide metal film resistors, fusible
resistors, etc.)
6. Check if replaced wires do not contact sharply edged
or pointed parts.
7. Make sure that foreign objects (screws, solder
droplets, etc.) do not remain inside the set.
MAKE YOUR CONTRIBUTION TO PROTECT
THE ENVIRONMENT
Used batteries with the ISO symbol
for recycling as well as small
accumulators (rechargeable batteries), mini-batteries
(cells) and starter batteries should not be thrown
into the garbage can.
Please leave them at an appropriate depot.
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and maintenance
(servicing) instructions in the literature accompanying the appliance.
WARNING:
Before servicing this TV receiver, read the X-RAY
RADIATION PRECAUTION, SAFETY INSTRUCTION
and PRODUCT SAFETY NOTICE.
X-RAY RADIATION PRECAUTION
1. Excessively high can produce potentially hazardous
X-RAY RADIATION. To avoid such hazards, the high
voltage must not exceed the specified limit. The
normal value of the high voltage of this TV receiver
is 27 KV at zero bean current (minimum brightness).
The high voltage must not exceed 30 KV under any
circumstances. Each time when a receiver requires
servicing, the high voltage should be checked. The
reading of the high voltage is recommended to be
recorded as a part of the service record, It is
important to use an accurate and reliable high
voltage meter.
2. The only source of X-RAY RADIATION in this TV
receiver is the picture tube. For continued X-RAY
RADIATION protection, the replacement tube must
be exactly the same type as specified in the parts
list.
3. Some parts in this TV receiver have special safety
related characteristics for X-RADIATION protection.
For continued safety, the parts replacement should
be under taken only after referring the PRODUCT
SAFETY NOTICE.
SAFETY INSTRUCTION
The service should not be attempted by anyone
unfamiliar with the necessary instructions on this TV
receiver. The following are the necessary instructions
to be observed before servicing.
1. An isolation transformer should be connected in the
power line between the receiver and the AC line
when a service is performed on the primary of the
converter transformer of the set.
2. Comply with all caution and safety related provided
on the back of the cabinet, inside the cabinet, on the
chassis or picture tube.
2
3. To avoid a shock hazard, always discharge the
picture tube's anode to the chassis ground before
removing the anode cap.
4. Completely discharge the high potential voltage of
the picture tube before handling. The picture tube is
a vacuum and if broken, the glass will explode.
5. When replacing a MAIN PCB in the cabinet, always
be certain that all protective are installed properly
such as control knobs, adjustment covers or shields,
barriers, isolation resistor networks etc.
6. When servicing is required, observe the original lead
dressing. Extra precaution should be given to assure
correct lead dressing in the high voltage area.
7. Keep wires away from high voltage or high tempera
ture components.
8. Before returning the set to the customer, always
perform an AC leakage current check on the exposed
metallic parts of the cabinet, such as antennas,
terminals, screwheads, metal overlay, control shafts,
etc., to be sure the set is safe to operate without
danger of electrical shock. Plug the AC line cord
directly to the AC outlet (do not use a line isolation
transformer during this check). Use an AC voltmeter
having 5K ohms volt sensitivity or more in the
following manner.
Connect a 1.5K ohm 10 watt resistor paralleled by a
0.15µF AC type capacitor, between a good earth
ground (water pipe, conductor etc.,) and the exposed
metallic parts, one at a time.
Measure the AC voltage across the combination of
the 1.5K ohm resistor and 0.15 uF capacitor. Reverse
the AC plug at the AC outlet and repeat the AC
voltage measurements for each exposed metallic
part.
The measured voltage must not exceed 0.3V RMS.
This corresponds to 0.5mA AC. Any value exceeding
this limit constitutes a potential shock hazard and
must be corrected immediately.
The resistance measurement should be done
between accessible exposed metal parts and power
cord plug prongs with the power switch "ON". The
resistance should be more than 6M ohms.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this TV
receiver have special safety-related characteristics.
These characteristics are offer passed unnoticed by
visual spection and the protection afforded by them
cannot necessarily be obtained by using replacement
components rates for a higher voltage, wattage, etc.
The replacement parts which have these special
safety characteristics are identified by marks on
the schematic diagram and on the parts list.
Before replacing any of these components, read the
parts list in this manual carefully. The use of
substitute replacement parts which do not have the
same safety characteristics as specified in the parts
list may create shock, fire, X-RAY RADIATION or
other hazards.
Good earth ground
such as the water
pipe, conductor, etc.
29THDPo=0.5W 1KHz1≤3%
30Signal to buzz ratio42≥40dB
31Minimum volume hum6≤10mVrms
32Maximum woofer output powerN/AN/AW
33Woofer audio freqency response±3dB ref. to 80Hz AV modeN/AN/AHz
34Bass control range100Hz ref. to 1KHz AV modeN/AN/AdB
35Treble control range10KHz ref. to 1KHz AV modeN/AN/AdB
36BalanceCenterN/AN/A
1Picture Modulation87.5%
2Sound Modulation27KHz Dev. For DK/I/BG
15KHz Dev. For M/N
3Picture to Sound Ration10dB
4Sound Artificial Load Resistor8 ohm
5Video signalWhite and black
(three white & two black)
6Audio signal1KHz sine wave 0.5Wrms
7Conditions of the TV setting:screen
A. Switch TV on and let it warm up for more than 30 minutes.
B. Connect RMS volt meter to speaker terminals and adjust theTV volume to get 500mW RMS power at each terminal.
C. Place the MINOLTA CA-100 test probe to white part of the screen,adjust the contrast until a reading of 80cd/m
D. Place the MINOLTA CA-100 test probe to black part of the screen,adjust the brightness until a reading of 2cd/m
E. Repeat step C & D until the exact luminance values is obtained or the nearest possible values you can get.then record the
luminance values & R.G.B gun voltage values at the same time. and take the largest values for measurement referenct.
F. Input standard color bar(100/0/75/0),then adjust the colour.until the waveforms at the blue gun of same level is obtained.
+P8P5+
+P1
+P4P2++P0
+P7P6+
+P3
1/9H
1/9W
W
Convergence error test point on
2
is obtained.
2
is obtained.
H
5
III. Level List of Equipments & Instruments Required for Production
No.DesignationRequirementReference ModelRemark
1Pattern GeneratorSystem of output signal:PHILIPS
RF out: PAL BG/SUB/DK/I,PM5518-TN
SECAM B/G/D/K, NTSC MPM5418-TN
Video out: NTSC 4.43/3.58 PAL 60Hz
2Digital voltmeterInput Resistance 10MFLUKE 45
3WithstandingWithstanding Voltage:KIKUSUI TOS 8650Irresistible Voltage Measure
Voltage TesterAC 1.5KV, 5KV/0-5KV ± 3%
Cut-off current: AC 0-2mA,
20mA / continuously Adjustable
4Insulation TesterTest voltage:1000V. 500VKIKUSUI TOS 7100L
5Sine wave SignalFrequency Range: 0.1~140MHzLEADER 3216For generating IF Signal
Generator( Precision:10KHz )
Level Range: -20~126dB
6OscilloscopeFrequency response: 20MHz or above
7CRT ColorMINOLTA CA-100For White Balance Adjustment
Analyzer
8DC RegulatedMax output Voltage 14VSupply DC power
Power Supply
9Color MonitorAV receiving system: Should includeSame model (of TV set)For operation check
all the AV output system of theas the productsFor resolution check
products at least.For Skew Check
10 Audio SignalFrequency of output signal:KENWOOD AG-203AFor generating audio signal
Generator20Hz-20kHz
IV. Applying Adhesive on Main PCB
i. For 25A9/29A9 models
6
ii. For 21A8 model
iii. For 2109/A9 models
7
iv. For 21B8 model
8
V. Wiring Diagram
i.For 25A9/29A9ABN87(B) models
9
ii. For 21A8BN87(A) model
E3701-980060
10
iii. For 21A9BN37(B)/2109bn37(D) the models
11
iv. For 21B8BN87(A) the model
12
VI. Block Diagram
i. For 25A9/29A9ABN87(B)/ 21A8/21B8BN87(A) models
13
ii. For 21A9BN37(B)/2109BN37(A) models
14
VII. Disassembly
In case of trouble, etc., necessitating disassemble, please disassemble in the order shown in the illustrations. Reassemble in the reverse order.
1. Removal of the Back Cover
2. Removal of the MAIN PCB
a. Remove the screws.
b. Slide out the TV chassis slightly; pull up the connector of AC cord from PCB; pull up the CRT PCB from
CRT.
c. Remove the anode cap from the picture tube. To avaid a shock hazard, be sure to discharge the picture
tube’s anode to the chassis ground before removal.
d. Take out the TV chassis.
VIII. Input Signals & Equipments List for Alignment
A. Equipments List
1. Pattern Generator2. Digital Voltmeter3. High Voltage Meter
4. Sine Wave Signal Generator5. Demagnetizer6. Personal Computer (486)
7. DC Regulated Power Supply8. Oscilloscope9. CRT Colour Analyzer
B. Input Signals
1. Philips Pattern2. Color Bar3. Cross Hatch
4. Grey Scale Bar5. Monoscope Pattern6. Moving Picture With Sound
15
IX. E2PROM (IC602) Setting
A. Option Code
The option code listed below is for selection of different TV systems, features and functions, the code is preset
in factory, in case of changing the EEPROM, the option code will not be the same as before. In this case, it is
necessary to adjust the option code again. How to set the option code by hand is described in “method to
enter into SERVICE MENU and ADJUST MENU”. Please refer to “V. Electrical Adjustment”.
8OSYS20 = MULTI SYSTEM SECAM NOT AVAILABLE (TV & AV)
1 = MULTI SYSTEM SECAM AVAILABLE (TV & AV)
9OSYS30 = MULTI SYSTEM NTSC NOT AVAILABLE (TV)
1 = MULTI SYSTEM NTSC AVAILABLE (TV)
Digit 4:
TUNER IFSETUP:OTUN1OTUN2OTUN3
34.47MHz000
36.875MHz001
38MHz010
38.9MHz011
39.5MHz100
45.75MHz101
Digit 5:
13OBL0= BILINGUAL (MAIN/SUB) NOT AVAILABLE
1= BILINGUAL (MAIN/SUB) AVAILABLE
14OSND10= MULTI SIF SYSTEM AVAILABLE
1= SINGLE SIF SYSTEM AVAILABLE
--THIS OPTION IS NOT COUNT BILINGUAL
15OSNDB0= SIF [BG] NOT AVAILABLE
1= SIF [BG] AVAILABLE
16
Digit 6:
16OSNDI0= SIF [I] NOT AVAILABLE
1= SIF [I] AVAILABLE
17OSNDD0= SIF [DK] NOT AVAILABLE
1= SIF [DK] AVAILABLE
18OSNDM0= SIF [M] NOT AVAILABLE
1= SIF [M] AVAILABLE
Digit 7:
19ORUSS0= RUSSIAN OSD NOT AVAILABLE
1= RUSSIAN OSD AVAILABLE
20OBB0= BLUE BACK NOT AVAILABLE
1= BLUE BACK AVAILABLE
21OTVO0= SCART MONITOR OUTPUT
1= SCART TV OUTPUT
Digit 8:
22OCHIT0= TRADITIONAL CHINESE (HK) OSD NOT AVAILABLE
1= TRADITIONAL CHINESE (HK) OSD AVAILABLE
23OCHIS0= SIMPLE CHINESE (CHINA) OSD NOT AVAILABLE
1= SIMPLE CHINESE (CHINA) OSD AVAILABLE
24OENG0= ENGLISH OSD NOT AVAILABLE
1= ENGLISH OSD AVAILABLE
Digit 9:
25OMSIF0= M SIF INTERNAL
1= M SIF EXTERNAL
26OBGSIF0= BG SIF INTERNAL
1= BG SIF EXTERNAL
27OISIF0= I SIF INTERNAL
1= I SIF EXTERNAL
Digit 10:
28ODKSIF0= DK SIF INTERNAL
1= DK SIF EXTERNAL
29/30 CHANNELNUMBER0CHAN20CHAN1
10000
20001
25410
NU: NOT USEDRES: RESERVED
B. Data Setting
The data setting item B~D is the initialization data preset in the EEPROM before adjustment in case of
changing the EEPROM, please set the data to initialization data listed below before adjustment. How to set
the data by hand is described in “method to enter into SERVICE MENU and ADJUST MENU”. Please refer
to “V. Electrical Adjustment”.
Remark2:ISUD5 must set to “0”. Please check ISUD5 after read 5198. If ISUD5 is “1”, please set to “0”.
Remark3:Some version MCU has not this item.
Remark4:PAL or NTSC VER.POS only can select 0 or 1.
Remark5:C-Y=0 For AMFxx models (use NN5198K)
C-Y=1 For other models (use NN5199K or NN5099K)
Remark6:VER.HEI 20 (use E6120-005001 or E6120-005003)
C. Intelligent picture control (I.P.C) DATA SETTING
Note: Please refer to the CRT conversion table for other CRT.
b. Adjustment Step
Adjust VR901 to make the read-out on the Voltmeter to be +B±0.3V.
ii. Method to enter into SERVICE MENU and ADJUST MENU
a. Turn on the Main Power Switch, then press volume buttons both "+" and "-" simultaneously for over 5 seconds,
the "KWTUA SERVICE" will be displayed on the screen.
KWTUA SERVICE
b. The “KWTUA SERVICE” menu is indicated with each item on
the screen. The item can be selected by pressing channel “ ”
and “ ” keys.
Adjustment
Optionxxxxxxxx
Read 5198CNT: X
Other Adj.
c. Selecting “Read 5198”, press “MENU/OK” key (or press “OK”
key on the remote handset) to read IC NN5099K/NN5198K DATA
in order to operate the TV set. On-screen display will be shown as :
Press “MENU/OK” key (or press “OK” key on the remote handset)
to confirm Read 5198. Press “M” key on the remote handset to exit.
KWTUA SERVICE
Adjustment
Option xxxxxxxx
Confirm Read ??? X
Other Adj.
Note: 1. Many standard data are already pre-set in the EEPROM inside IC NN5198K or NN5099K by the IC
manufacturer. During manufacturing the TV set, it is necessary to read those data stored in EEPROM
of IC NN5198K or NN5099K and memorize it in external EEPROM. By doing so, some alignment can
be omitted, or the data memorized in the external EEPROM can be changed according to the situation.
Please note that according to the specification, the operation of “reading” data from the EEPROM inside
NN5198K or NN5099K only can be done 1000 times. When changing IC201 (NN5198K or NN5099K)/
IC602 (EEPROM) or before adjusting, it is necessary to read NN5198K or 5099K data one time.
2. “CNT:X” means number of times that the data stored in the EEPROM of NN5198K or NN5099K has
been read. For example, CNT:19, it means the data stored in the EEPROM of NN5198K or NN5099K
has been read 19 times.
d. Selecting “Option”, press “OK” key then input the option code by number keys on the remote handset
according to the “Option code”. After changing “OPTION”, the TV set must be set to standby and power on
again, then enter into “SERVICE MENU”.
e. Select “Adjustment”, press “OK” key on the remote handset. The “ADJUST MENU” is indicated with each
parameter on the screen. Pressing channel “ ” and “ ” keys can select the responding parameter. The
parameter value can be changed by pressing volume “+” and “-” keys. Press “OK” key to exit.
f. Select “Other Adj.”, press “MENU/OK” (or press “OK” key on the remote handset), On-screen display will be
shown as following:
19
1). Production
The function of ”Production” is for production aging purpose. When no RF signal input and if it is set
to “on”, the TV set will not be blue back and standby shortly. When the TV set is finished, it must be
set to “off”. If it is set to “on”, a character “P” will appear on the top of the screen when changing
channel, this means that it is set for production purpose. By pressing the volume “+” and “-” keys,
“Production” can be set to “off” or “on”. By pressing the “MENU/OK” in the TV set or “M” key on the
remote handset, it will exit the menu.
2). AFT-Step
Selecting “AFT-Step” to set AFT DATA, press “OK”
key to enter, On-screen display will be shown as:
KWTVA OTHER
Productionoff
AFT-Step
IPC
Use channel “ ” and “ ” keys to select the parameter, the parameter value can be changed by
pressing volume “+” and “-” keys. See “AFT data setting”. Press “M” key on the remote handset or
“MENU/OK” key in TV set to exit.
3). IPC
Selecting “IPC” to set picture mode data, press “OK” key to
enter, the picture mode data is indicated with each parameter
on the screen. Press “I.P.C.” key to select picture mode,
select the parameter and change the parameter value.
When this picture mode data is ok, press “OK” key to store,
the parameter value below will display “Stored”. When all
picture mode data is being stored, press “MENU” key to exit.
iii. Adjustment of T101(31.9MHz trap) and AFC
A.Adjustment for T101(31.9MHz trap) (for using T101 models)
1. Turn on the main power switch.
2. Apply 100dBµv 31.9MHz signal between IF input pin and GND of the TUNER on main PC board.
3. Put the probe of oscilloscope to SA102 pin1 and GND.
4. Adjust T101 until the waveform in oscilloscope to minimum.
B. Adjustment of AFC
a. Preparation procedure
1. Turn on the main power switch.
2. Set digital voltmeter at DC, then connect it’s probe across of R603 and GND.
(Fig.1)
3. Apply 100dBµV IF signal between IF input pin and GND of the TUNER on main PC board (see Fig.1).
b. Adjustment Step
Adjust the “AFT ADJ” DATA until the meter indicates 2.4±0.1V.
c. AFC Check.
After adjustment, it is necessary to confirm the DC voltage across R603 when Changing the RF output
frequencyof pattern generator (PM5518) by ±o.1MHz, the DC voltage shoud be as:
If the result is not satisfactory, repeat adjustment step "b. Adjustment Step" until correct voltage is obtained.
d. Press “OK” key to store.
e. press “MENU” key to exit.
20
iv. Adjustment for H position and V position, V-height and V linearity.
a. Receive pattern signal (PAL).
b. Enter ADJUST MENU.
1. Adjust value of HOR.POS to get a good H position picture.
2. Adjust value of VER.HEI to get a normal picture.
3. Adjust value of VER.POS to get a good V position picture.
4. Normal VER.LIN and VER.S CUR doesn’t need adjustment. If V linearity is not good, please adjust
value of VER.LIN and VER.S CUR to get a good V linearity picture.
c. Receive pattern signal (NTSC).
d. Enter ADJUST MENU
1. Adjust value of HOR.POS60 to get a good H position picture.
2. Adjust value of VER.H60 to get a normal picture.
3. Adjust value of VER.POS60 to get a good V position picture.
4. Normal VER.LIN60 and VER.SC60 doesn’t need adjustment. If V linearity is not good, please adjust
value of VER.LIN60 and VER.SC60 to get a good V linearity picture.
e. Press “OK” key to store.
f. press “MENU” key to exit.
v. Adjustment for TV TINT (TV picture) and AV TINT (AV picture)
a. Receive a NTSC color bar Signal from AV.
b. Enter ADJUST MENU
Adjust the value of AV S TINT until the waveform of Oscilloscope is shown as above.
vi Adjustment for SECAM BL (for use NN5198K model)
a. Receive a SECAM dot pattern signal from RF.
b. Press key “I.P.C” to select “NATURAL” status.
c. Put the Probe of Oscilloscope to “B-out” Terminal of IC201 Pin12 and GND.
Adjust Value of SECAM BL until V is smallest (see Fig.2).
e. Press “OK” key to store.
f. press “MENU” key to exit.
vii. Adjustment for RF AGC
a. Receive RF signal (62±3dBµV).
b. Enter into ADJUST MENU.
c. Pressing channel “ ” and “ ” keys on the remote handset and on-screen display will be shown as
following: RFAGCDP XX
d. Press volume "+" or "-" on the remote handset to change the value of RFAGCDP until snow noise on
the screen just disappears.
e. Press “OK” key to store.
f. press “MENU” key to exit.
viii. Adjustment for Sub-brightness
a. Receive MONOSCOPE pattern.
b. Press key “I.P.C” on the remote handset to set Brightness and Contrast at natural state.
c. Enter into ADJUST MENU.
d. Pressing channel “ ” and “ ” on the remote handset, the display on screen will be: SUB BRI XX
e. Press volume “+” or “-” on the remote handset to change the value of SUB BRI until eight and half of
portions indicated in Fig.3 is just visible.
(Fig.2)
21
f. Press “OK” key to store.
g. press “MENU” key to exit.
(Fig.3)
ix. Pincushion Correction
1. Receive crosshatch pattern. (croix centrale pattern).
2. Adjust keystone correction control VR1303/VR480 to obtain symmetrical
pattern about horizontal center as shown in Fig.4a.
3. Adjust pillow correction control VR1301/VR482 to obtain vertical
straight lines on screen as shown in Fig.4b.
4. Adjust horizontal width control VR1302/VR481 to desired picture width.
5. Adjust top correction control VR483 to obtain proper top picture on the screen.
6. Control contrast brightness from mini to maxi, check the picture of pattern, repeat step 3-5 until a
desired picture is obtained.
(Fig.4a) (Fig.4b)
x. Adjustment for FOCUS (See Fig.5)
a. Press key "I.P.C." on the remote handset to set Brightness and
Contrast both at normal position.
b. Adjust knob "FOCUS" on FBT to make the picture on the screen
to be the most distinct.
xi. Adjustment with computer.
INTRODUCTION
"UBM" is an adjustment program for colour TV set which use NN5099K/NN5198K as the chroma processing IC.
This program can change the TV set data of different function though IIC interface and provides Auto
Adjustment of the White-Balance by using the Colour Analyzer (MINOLTA CA-100).
SET UP
1. The computer must be installed with the software program named UBM.
2. Power on the TV set and the computer.
3. Connect the computer and connect the adjustment cable from the computer to the TV chassis at
location CN601 as following:
(Fig.5)
4. C:\ cd UBM ENTER
5. C:\ cd UBM >UBM ENTER
22
The screen will display:
ZHONG SHAN KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTER
AUTO ADJUSTMENT FOR COLOUR TV SET (VERSION V1.00 FOR )
CPU Program Name:
UBM UBMT
Your Computer is: PC/AT 80386 33MHz
If Information of Your Computer not Right, Please Run SELF TEST.
↑
Use , Key to Select Options, Enter to Confirm or Esc to Quit.
↑
6. Use keys in the computer to select the software program named UBM, then press “enter” key in
↑
↑
the computer. The screen will display:
ZHONG SHAN KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTER
AUTO ADJUSTMENT FOR COLOUR TV SET (VERSION V1.00 FOR UBM)
(A) WB AUTO ADJUST
(B) SETUP EEPROM
(C) READ EEPROM
(D) PC SELF TEST
(E) WB PARMS SETUP
(F) EXIT TO DOS
Your Computer is: PC/AT 80386 33MHz
If Information of Your Computer not Right, Please Run SELF TEST.
↑
Use , Key to Select Options, Enter to Confirm or Esc to Quit.
↑
This is the main menu for adjustment and the different data can be changed and viewed.
It consists of following functions.
(A) WB AUTO ADJUST(D) PC SELF TEST
(B) SETUP EEPROM(E) WB PARMS SETUP
(C) READ EEPROM(F) EXIT TO DOS
(A).WB AUTO ADJUST
Before enter to WB AUTO ADJUST, make sure the WB PARMS SETUP (E) is fulfil your adjustment
requirement.
Procedure:
1. Check WB setup and to define standard and tolerance.
P1P2
2. Connect the colour Analyzer (Minolta CA-100) to the computer (COM 1).
3. Turn on the TV set and receive the White-Grey signal.
4. Connect the adjustment cable to the TV at location CN601.
5. Press Space Bar, the computer will display "Please adjust screen Voltage,
space Bar to continue". Now change to TV service mode and adjust the screen
voltage until ahorizontal line is just visible on the screen, then back to normal mode
by pressing “Space” bar in the computer.
6. Put the colour probe 1 to the low luminance side and colour probe 2 to the high luminance side of
the screen. (It is better to place near the center of the screen.)
7. Press Space Bar to start WB adjustment.
23
Automatic White Balance Adjustment for UBM
Parameter: COM1: 9600, E, 7, 2 / PAL / Probe1 = Low, Probe2 = High
++
LOWHIGH
STDTESTSTDTEST
x = 288x =x = 288x =
y = 298y =y = 298y =
Y = 7.5Y =Y = 160Y =
Press Space Bar to Continue
If the WB adjustment is success, the computer will display "Finished to adjust white Balance and show all
value and adjustment time used. Then the user must put off the adjustment cable from the TV IIC interface
now. Then repeat from the step 3 for another TV set adjustment.
If the adjustment cannot be finished within your presetted time limit, the computer will display "Sorry,
adjustment stopped!" and the adjustment is failed. It is better to call technician to check the TV hardware
if the adjustment failed several times.
(B).SETUP EEPROM
The function: "SETUP EEPROM" is used for writing a date file to the TV set's EEPROM.
Before to do this process, it is needed to read the date file from a TV set first, otherwise the computer
will display the warning message and back to main menu.
Channel File not Found!
Press enter to Continue.
If you already have had Previous EEPROM file, the program will ask for select:
a) (24C02)b) UBM/UBMT (24C04)c) (24C08)
After EEPROM SIZE selection, it will list the data files which are the same size as the user select, the
user now need to select one of the files, and press «Enter» to confirm writing the data to TV set's EEPROM.
* Remark: "SETUP EEPROM" will overwrite all the data in EEPROM. Please make a data backup before
to do this process.
Colour TV Channel Parameter Setup
Search: ST24C0X DATA FILE
Please Select What Kinds of EEPROM You Want to Setup
(24C02)
UBM/UBMT(24C04)
(24C08)
INFORMATION
There are 1 kind in the disk only, so you have not choice to select another. If it
is what you need, please press Enter, start to send DATA to EEPROM.
Otherwise, please press ESC to quit, run READ EEPROM and get new channel
DATA from good color TV.
Use Enter to Confirm, Esc to Quit, to Select
↑
↑
24
(C).READ EEPROM
The function "READ EEPROM" is to read full data from a TV set's EEPROM. First the user must check
the TV's EEPROM number for select a) 24C02, b) 24C04 or c) 24C08. Then the program will ask for
confirmation to read. After that, it will show the values of EEPROM, the user can save it by pressing
«Enter» and enter the model name.
Colour TV Channel Parameter Gather
---------- NOTE ----------
This part is used to gather parameter of Colour TV channel.
The Colour TV you use must have been adjusted by technician and passed by EQ. Make sure
the EEPROM in your Colour TV is 24C02 (BSAV02 W/O Name), 24C04 (UBM) or 24C08
(UBM KWTVA). Please useto select one and press Enter to Start or press Esc to Quit.
↑
↑
24C02
24C04 (UBM/UBMT)
24C08(UBM KWTVA)
Use Enter to Confirm, Esc to Quit, to Select
↑
↑
(D).PC SELF TEST
The user are allowed to run the PC SELF TEST by selecting this option and press «Enter». The computer
will show the system details such as Processor Name, CPU Speed of your computer.
Further more, the user can adjust the high level and low level period length of data transfer.
Computer and Output Test
Test Finished, Now Create Report
Your Computer is :
computer Name:IBM PC/AT
Main Processor:Intel 80486
CPU Speed:332MHz
The function of "WB PARMS SETUP" is to preset a group of data which for the “(A) WB AUTO ADJUST"
Chrominance and Luminance Standard and Tolerance.
First the computer ask for select WB configuration file, then the user can set the WB data:
a)x = x coordinate of colour
b)y = y coordinate of colour
c)Y = luminance
d)X = Acceptable tolerance of x
e)Y = Acceptable tolerance of y
f)Y = Acceptable tolerance of Y
g)Max time = Max time for adjustment
h)Luminance level offer adjust = low Bright luminance
i)Color = Color of NN5198K/NN5099K
J)Tint = Tint of NN5198K/NN5099K
k)S-Bright = S-Bright
l)U-Bright = U-Bright
m)Contrast = Contrast
n)Cut off R =Cut off R
of NN5099K
o)Cut off G =Cut off G
p)Cut off B =Cut off B
q)Drive R = Drive R
r)Drive B = Drive B
The following data is recommended to use in UBM chassis.
Low Bright
Standard
x = 288
y = 298
Y = 3.5
x = ± 5
y = ± 5
Y = ± 1
High Bright
Standard
x = 288
y = 298
Y = 160
x = ± 5
y = ± 5
Y = ± 10
Maximum time = 30 Sec
Luminance level after adjustment: 14
AN5195K Initialize:
Color = 63Cut off R = 31
Tint = 63Cut off G = 31
S-Bright = 127Cut off B = 31
U-Bright = 127Drive R = 63
Contrast = 63Drive B = 63
Model : UBM
After finishing setup, press «Esc» and confirm to save setup or leave the menu.
(F).EXIT TO DOS
Just exit the adjustment program and back to dos environment.
B. Colour Purity, Convergence Adjustment and +B Voltage Check
i. Colour Purity Adjustment (See Fig.6)
BEFORE ANY ADJUSTMENT DESCRIBED BELOW ARE ATTEMPTED, V-HIGH, B+ VOLTAGE AND FOCUSING
ADJUSTMENT MUST BE COMPLETED.
a. Place the TV receiver facing NORTH or SOUTH.
b. Plug in TV receiver and turn it on.
c. Operate the TV receiver over 30 minutes.
d. Fully degauss the TV receiver by using an external degaussing coil.
e. Receive a crosshatch pattern and adjust the static convergence control roughly.
26
f. Loosen the clamp screw of the deflection yoke and pull the deflection yoke towards you.
g. Enter into ADJUST MENU. Set the values of C-R, C-G, C-B to "00".
h. Adjust the purity magnets until green field is obtained at the center of the screen.
i. Slowly push the deflection yoke toward cone of CRT and set it where a uniform green field is obtained.
j. Tighten the clamp screw of the deflection yoke.
k. After COLOUR PURITY ADJUSTMENT, you must adjust the WHITE BALANCE again.
ii. Convergence Adjustment (See Fig.6)
a. Receive a dotted pattern.
b. Unfix the convergence magnet clamper and align red with blue dots
at the center of the screen by rotating (R,B) static convergence magnets.
c. Align Red/Blue with green dots at the center of the screen by rotating
(RB-G) static convergence magnets.
d. Fix the convergence magnets by turning the clamper.
e. Remove the deflection yoke wedges and slightly tilt the deflection yoke
horizontally and vertically to obtain the good overall convergence.
f. Fix the deflection yoke by wedges.
g. If purity error is found, follow "PURITY ADJUSTMENT".
(Fig.6)
iii. +B Voltage check
After production aging, it is necessary to check +B voltage.
a. Receive standard colour bar signal.
b. Press key “I.P.C” to select “Natural” mode.
c. Connect digital voltmeter between JP430 (For 21A9BN37) or C403(For other models) and GND. the
read-out on the voltmeter should be +B±1V. if the result is not satisfactory, adjust VR901 to make the
1CAB FR1Place
2MTB CRT.4Fit on
3Screw 6X16mm20Tighten
4FUN. Key1Fit on
5Screw 3X103Tighten
6Key Board Ass’y1Fit on
7Screw 4X202Tighten
8Name Plate1Fit on
ii. 21A8/21A9 models
No.DescriptionQTYAction
9Speaker2Shut
10Front Panel1Buckle on
11Door Lock1Fit on
12Push Door1Buckle on
13Power Knob1Insert
14Compress Spring1Put into
15Sensor Lens1Insert
16Power Lens1Insert
No.DescriptionQTYAction
1CAB Front1Place
2MTB CRT.4Fit on
3Screw 6X10mm12Tighten
4Speaker2Shut
5Screw 4X83Tighten
6CLP CRD PWR1Fit on
7Function Key1Fit on
8Screw WHR 3X103Tighten
9Speaker Net1Fit on
No.DescriptionQTYAction
10Name Plate1Fit on
11RCA PCB1Buckle on
12Power Lens1Buckle on
13Sensor Lens1Insert
14Compress Spring1Put into
15Power Knob1Put into
16Push Door1Buckle on
17Door Lock1Fit on
18Front Panel1Buckle on
36
B. CRT block
i. 25A9/29A9 models
No.DescriptionQty.ActionRemark
1.CRT1Place
2.CRT Earth Line1Hang
3.CRT Spring2Hook
4.Degaussing Coil Ass’y1Bind
5.Cable Tie1Bind
6.Cable Tie9BindBind the degaussing coil to CRT with cable ties.
ii. 21A8/21A9 models
No.DescriptionQTY.ActionRemark
1CRT1Place
2Degaussing Coil Clip2Hang on CRT ears
3CRT Earth Line1Hang on CRT ear and degaussing coil clips
4CRT Spring1Hang on CRT ear and tight CRT earth line
5Degaussing Coil1Buckle on degaussing coil clips
6CRT. Ass’y1
37
C. Assembly of chassis block
i. 25A9/29A9 models
No.DescriptionQty.ActionRemark
1Chassis Bracket1Place
2Main PCB Ass’y1Fit onFit Main PCB Ass’y onto Chassis Bracket.
3Self-tapping Screw 3x10mm12Tighten
4FBP WHR 3x8x0.83Fit on
5Self-tapping Screw3Tighten
6Power Cord Ass’y1ConnectConnect the AC cord to main PCB.
7Power Cord Clip1Fit on
8FBP WHR 3.3x14x1.61Fit on
9Self-tapping Screw1Tighten
10CRT PCB Ass’y1ConnectConnect CRT PCB Ass’y to main PCB.
11Pin Cushion PCB Ass’y1Insert
12Self-tapping Screw1Tighten
13Self-tapping Screw1Tighten
14HTWT 69131Insert
15RNG +PRTOT 91282Fit on
16Tuner Plate1Fit on
38
ii. 21A8/21A9 models
No.DescriptionQTY.Action
1Main PCB1
2Tuner Plate1Fit on
3RNG +PRTOT 91281Fit on
4ADPTR SW PWR 39121Fit on
39
D. Whole unit without rear cabinet block
i. 25A9/29A9 models
No.DescriptionQTYAction
1Front Block1Place
2RP + RNG 37164Fit on
329” CRT Ass’y1Fit on
4WHR + CRT 91294Put on
5Nut 8X13X6.34Tighten
6Speaker2Fit on
7Screw 4X88Tighten
8Main PCB Ass’y1Insert
ii. 21A8/21A9 models
No.DescriptionQTYAction
1Front Block1Place
2Ring4Fit on
321” CRT Ass’y1Fit on
4WHR + CRT 4D4Put on
5Nut 6x10x5 4D4Tighten
6CRT PCB ASS’Y1Fit on
7Main PCB Ass’y1Insert
40
E. Rear cabinet block
i. 25A9/29A9 models
No.DescriptionQTYAction
1CAB BK1Place
2Model Plate1Place
3Cover Plate1Fit on
4AV Cover Plate1Fit on
5Back Panel1Takex
6TS BID4X106Tighten
1Gift box1PlaceTake a giftbox and place it on working table.
2Nail8Nail
3Masking TapeAffix
4Polyfoam End CAP (Bottom)1PlaceOn the bottom of the giftbox.
5Wire Tie1Bind
6Polybag for AC CORD1Take
7Masking TapeAffix
8Cable Tie1tie
9TV Set1Put onInto the giftbox.
10Expanded Polyethylene Foam Paper1CoverAbove the TV set .
11Polyfoam End CAP (Top)1PlaceAbove the TV set .
12Polybag for Remote1Take
13Remote Handset ASS’Y1Put onInto the polybag.
14Masking TapeAffix
15Polybag for I/B1Take
16I/B1Put onInto the polybag and put the polybag with
I/B into the giftbox.
17Masking TapeAffix
18Masking TapeAffix