PRODUCT CODE: 111360913
ORIGINAL VERSION: Chassis No. EB8-A
Give complete "SERVICE REF. NO." for parts
order or servicing, it is shown on the rating sheet
on the cabinet back of the TV set.
Note
This TV receiver will not work properly in foreign
countries where the television transmission
system and power source differ from the design
specifications. Refer to the specifications for the
design specifications
Adjustment and Repair Procedures............................................................................................................5~9
CPU Functions..............................................................................................................................................................................10~1 1
IC Block Diagrams..................................................................................................................................13~15
Pin description of semiconductors................................................................................................................16
Part Description and reading of schematic diagram ....................................................................................17
Cabinet Parts List/TV Stand parts list ..........................................................................................................18
Electric Parts List....................................................................................................................................19~24
Please use Schematic Diagram SKP20435
inserted with this Service Manual.
Page 2
Part No. SKSM0720 C7WAS JULY 2004
Colour Television
Service Manual
Model CE28DN9-B
Service Ref. No. CE28DN9-B-01
PRODUCT CODE: 111373100
ORIGINAL VERSION: Chassis No. EB8-A
Give complete "SERVICE REF. NO." for parts
order or servicing, it is shown on the rating sheet
on the cabinet back of the TV set.
Note
This TV receiver will not work properly in foreign
countries where the television transmission
system and power source differ from the design
specifications. Refer to the specifications for the
design specifications
Adjustment and Repair Procedures............................................................................................................5~9
CPU Functions..............................................................................................................................................................................10~1 1
IC Block Diagrams..................................................................................................................................13~15
Pin description of semiconductors................................................................................................................16
Part Description and reading of schematic diagram ....................................................................................17
Cabinet Parts List ........................................................................................................................................18
Electric Parts List....................................................................................................................................19~24
Please use Schematic Diagram SKP20443
inserted with this Service Manual.
Page 3
-2-
C7WAS
SAFETY PRECAUTION
X-RADIATION PRECAUTION
The primary source of X-RADIATION in the television receiver is the picture tube. The picture tube is specially
constructed to limit X-RADIATION emissions. For continued X-RADIATION protection, the replacement tube
must be the same type as the original including suffix letter. Excessive high voltage may produce potentially
hazardous X-RADIATION. To avoid such hazards, the high voltage must be maintained within specified limit.
Refer to this service manual, high voltage adjustment for specific high voltage limit. If high voltage exceeds
specified limits, take necessary corrective action. Carefully follow the instructions for +B1 volt power supply
adjustment, and high voltage adjustment to maintain the high voltage within the specified limits.
PRODUCT SAFETY NOTICE
SPECIFICATIONS
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by markin the parts list and the schematic diagram designate components in which
safety can be of special significance. It is particularly recommended that only parts designated on the parts list in
this manual be used for component replacement designated by mark. No deviations from resistance wattage
or voltage ratings may be made for replacement items designated by mark.
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 notes
provided on the cabinet back, inside the cabinet, on
the chassis or the picture tube.
3: When replacing a chassis in the cabinet, always be
certain that all the protective devices are installed
properly, such as, control knobs, adjustment covers
or shields, barriers, isolation resistor-capacitor networks
etc. Before returning any television to the customer,
the service technician must be sure that it is completely
safe to operate without danger of electrical shock.
Power source AC 220~240V, 50Hz
Television system System I
Colour system PAL/NTSC4.43 (PAL/NTSC4.43/NTSC3.58 IN AV MODE)
Receiving channel UHF: #21~69
Aerial input impedance 75ohm
Rear AV terminal
AV1:CENELEC standard
INPUT: Composite video, RGB and Audio L/R
OUTPUT: TV-output with composite video and audio L/R
AV2:CENELEC standard
INPUT: Composite video, RGB, S-VHS and Audio L/R
OUTPUT: Monitor output with composite video and Audio L/R
Front AVterminal
AV3:RCA jacks
INPUT: Composite video and Audio L/R
Sound output(Music) 5 x 2
Dimensions (WxHxD) 736 x 597 x 494mm
Weight 30.7Kg
!
!
!
Page 4
-3-
C7WAS
BLOCK DIAGRAM
This is a diagram for all models and therefore differs slightly from the actual block diagram.
Outline
SW601
AC
C609
TN6Q04
IC601
SCAN COIL
VERTICAL
HORIZONTAL
SCAN COIL
V-OUTPUT
LA78045
Q461
IC501
Q462
L462
L461
Q432
D441
Q431
PIN 106
22 23
128
2
Q439
D610
Q675
Q641
St-BY UOC
106
6
84 85 86
Q642
Q625
145v
Q651
+14v
-14v
Q682
IC666
3v3
ON/OFF
UOC PIN 107
107
D671
3v3 St-By
TO UOC PINS
93 & 96
X201
10
11
UOC
7v
1V8_2
Q203
25v
4
Q204
14
14v
1
5v
2
IC645
1V8_1
Q202
Q201
CONVERTER
T611
P.F
3,100,117,118,124
TO UOC PINS
I
IC801
MEMORY
2
C BUS CONTROL
9
9
12031127
60 61
97
108 109
KEY SW
SPEAKER
SP901
SP902
IC001
AUDIO AMPLIFIER
PF
Q866
5
A1901
RC RECEIVER
ON/OFF CONTROL
CPU PIN 106
Q402
Q403
To CRT
200v
Q401
145V
CRT
Heater
T451 FLYBACK
SCREEN & FOCUS
H.V
IK
K1101
BOUT
IC7 01
515354
AV3 AUDIO L/R & VIDEO IN
GOUT
R OUT
PICTURE TUBE
49
50
58
62
63
SCART 2 AUDIO L/R OUT
SCART 2 AUDIO L/R IN
48
SC_2 VIDEO IN
K1002
SCART 2
75
72
71
70
SC_2 VIDEO OUT
SC_2 R-IN
SC_2 B- IN
SC_2 G -IN
SC_2 FB -IN
Q1003
Q1004
553435
36
37
SCART 1 AUDIO L/R IN
SCART 1 AUDIO L/R OUT
K1001
SCART 1
SC_1 VIDEO IN
43
SC_1 VIDEO OUT
Q1001
Q1002
807978
77
SC1 FB IN
SC_1 R-IN
SC_1 G-IN
SC_1 B-IN
30
29
X122
25
X121
SIF IN
24
IF IN
TUNER
A101
5v30v
Page 5
-4-
C7WASÍ
(A)
(A)
CABINET DISASSEMBLY
CABINET BACK DISASSEMBLY
1. Remove 9 screws(A) for 28”
2. Pull out the cabinet back.
(A)
(A)
(A)
(A)
(A)
(A)
(A)
Page 6
-5-
C7WAS
OPTION SETTING
[After replacing the Memory IC (IC801)]
The memory IC, IC801, stores the option data of TV set and service adjustments data for each circuit, therefore,
when the memory IC is replaced, it should be programmed to the following settings and “SERVICE ADJUSTMENT”
on pages 6 to 9.
To enter to the Option Mode
+ Press and hold the F/OK button on the remote control and P▼ button on the front panel of the TV. The option
window will appear on the screen.
To set the Option Mode
+ Highlight the desired option item by using the P▲ or P▼ button .
+ To switch the option mode, use the Volume - (LEFT) or Volume + (RIGHT) button.
+ The data which is set in the option mode is stored into the memory IC automatically.
The following table shows the available option items and default setting mode.
TUNING
P & PON or OFFPlug & Play mode, default “ON”
WEL. TEXTON or OFFDisplay message when first set up, default “ON”
AUTO VOLUMEON or OFFAuto volume default “OFF”
SURROUNDON or OFFSurround sound default “ON”
VIRT SUB WOOFER ON or OFFVirtual Sub Woofer default “ON”
COUNTRYUK or IRE orTV system, default “UK”
BG/DK / I / LL’
WIDEON or OFFWide mode, default ON
AV3ON or OFFFront AV disable, default “ON”
TEXT NO SIGNALON or OFFDisables Text when no signal, default “ON”
AFCON or OFFAuto Frequency Control default “OFF”
OPTION MODE FOR CE28DN9-B-01
i
OPTION
SORT MODESORTING
P&P ON
WEL. TEXTON
AUT O VOLUMEOFF
SURROUNDON
VIRT SUB WOOFERON
COUNTRY UK
WIDE ON
AV3ON
TEXT NO SIGNALON
AFCOFF
ADJUST : EXIT : RECALL
Page 7
-6-
C7WAS
SERVICE ADJUSTMENTS
After replacing the Memory IC (IC801)]
The memory IC, IC801, stores the service adjustments data for each circuit, therefore, when the memory IC is
replaced, it should be programmed by using “OPTION SETTING” on previous page and the following adjustments.
ADJUSTABLE SERVICE ADJUSTMENT
Item No.OSDDescription
7VG2Screen adjustment
151WPR - NR - Drive adjustment
152WPG - NG - Drive adjustment
304AGC Take OverAGC adjustment
314TXT - H - POSOSD Positioning adustment
IMPORTANT NOTICE
Do not attempt to adjust service adjustments not listed above otherwise it may cause loss of performance and product safety.
EW Width50HzNatural / or 4:3 squeeze mode
Hor. Shift50HzNatural / or 4:3 squeeze mode
EW Parabola50HzNatural / or 4:3 squeeze mode
Trapezium50HzNatural / or 4:3 squeeze mode
UC Parabola50HzNatural / or 4:3 squeeze mode
LC Parabola50HzNatural / or 4:3 squeeze mode
Hor. Bow50HzNatural / or 4:3 squeeze mode
Parallel50HzNatural / or 4:3 squeeze mode
Vert. Scroll50HzNatural / or 4:3 squeeze mode
FrequencyWide Mode
50HzFull
50HzFull
50HzFull
50HzFull
50HzFull
Explanation
Track. Mode(HCO)
Vertical zoom
Vertical slope
Vertical shift
Vertical amplitude
S-correction
V.Lin.Ctrl.
V.Linearity
EW width
Horizontal shift
EW parabola/width
EW trapezium
EW upper corner parabola
EW lower corner parabola
Horizontal bow
Horizontal parallelogram
Vertical Scroll
RGB blanking mode
Timing of wide blanking front(WBF)
Timing of wide blanking rear(WBR)
Black current measuring lines in overscan
Extended vertical blanking
Vertical zoom
EW width
Horizontal shift
EW parabola/width
EW trapezium
EW upper corner parabola
EW lower corner parabola
Horizontal bow
Horizontal parallelogram
Vertical Scroll
Page 8
-7-
C7WAS
To enter to the Service Mode
+ Press and hold the GREEN button on the remote control and then press the P▼ button on the cabinet.
To select the service item and change data value
+ To select the adjustment item, use the P▲ or P▼ button.
+ To change the service data, use the Volume -(LEFT) or Volume + (RIGHT) button.
+ The data which is set in the service mode is stored into the memory IC automatically.
SERVICE MODE
SERVICE SERVICE SOFTWARE
ITEM ITEMVERSION
NUMBER DESCRIPTION
Exit from the Service Mode
+ Press the MENU button or turn off the TV set by using the Mains switch.
INITIALISATION OF MEMORY IC
To initialise the memory IC (IC801), press and hold the NORMALbutton on the remote control, then press
the P▼ button on the front panel of the TV set. The tv set will switch into standby mode. Turn the Mains switch Off
and On, then switch on from standby. The initialisation is now completed.
When initialised the memory IC and all of the setting data (option data and service adjustment data) stored in the IC
are reset to the default value. It is necessary to set the option settings and readjust the service adjustments listed in
this manual and to re-tune all the channels.
SERVICE
000 EB8A3_52
Page 9
-8-
C7WAS
ADJUSTMENTS
IMPORTANT NOTICE
Do not attempt to adjust the following service adjustments except when adjustments are required in servicing
otherwise it may cause loss of performance and product safety.
1. Receive white raster pattern.
2. Set controls to normal.
3. Connect digital voltmetre to test point TP-B and GND.
4. Adjust voltage to 150 ±0.5V by using VR641.
1. Input and tune an RF signal which is UHF to the clearest station.
2. Connect digital voltmetre to test point TP-A and GND.
4. Enter the service mode and select item no. 304. AGC
TAKE OVER
5. Press the LEVEL+ or LEVEL - button to adjust volt-
age to be 3.2Vdc.
By using FOCUS VR, adjust focus control for well
defined scanning lines.
SCREEN ADJUSTMENT
1. Receive black and white pattern.
2. Enter the service mode and select item no. 7. VG 2
3. Turn screen VR from min to max. OSD will change
from below to above. Turn back until below appears
and then stop turning.
DRIVE ADJUSTMENT
6. Select item no.151. WPR - N (R-Drive) or 152. WPG -
N (G-Drive) and adjust both initially to 20.
7. Change data value of each item by using LEVEL + or
LEVEL - button to obtain the proper white balance.
PCC ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 23. EW
PARABOLA
3. Press the LEVEL+ or LEVEL - button to adjust the
vertical line to be straight.
TRAPEZOID ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 24.
TRAPEZIUM
3. Press the LEVEL+ or LEVEL - button to correct the
trapezum distortion of the vertical line.
PCC ADJUSTMENT
GREY SCALE ADJUSTMENT
FOCUS ADJUSTMENT
AGC ADJUSTMENT
+ B VOLTAGE ADJUSTMENT
Page 10
-9-
C7WAS
CORNER ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 25. UC
PARABOLA for top corner adjustment OR item no.
26. LC PARABOLA for bottom corner adjustment.
3. Press the LEVEL+ or LEVEL - button to correct the
distortion of the vertical line around the corners.
HORIZONTAL CENTRING ADJUSTMENT
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 22. HOR.
SHIFT.
3. Press the LEVEL+ or LEVEL - button to adjust the
horizontal centre.
HORIZONTAL WIDTH ADJUSTMENT
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter to the service mode and select item 21. EW
WIDTH.
3. Press the
LEVEL+ or LEVEL - button to adjust the
horizontal width.
1. Receive circular pattern and set screen mode to
“FULL”.
2. Set controls for brightness and contrast to maximum.
3. Connect high-voltage meter to the anode of CRT and
GND.
4. Confirm that voltage is 26 kV ±1.0kV at maximum
beam current 1.2mA ± 0.05
VERTICAL CENTRING ADJUSTMENT
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no.16.VERT
SHIFT.
.3 Press the LEVEL+ or LEVEL - button to adjust the
vertical centre.
VERTICAL HEIGHT ADJUSTMENT
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 17. VERT
AMPL.
3. Press the LEVEL+ or LEVEL - button to adjust the
vertical height.
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 314. TXT H - POS.
9Vref3.3v Reference-10XTAL INClock OscillatorIn
11XTAL OUTClock OscillatorOut
12VssGnd-13Vguard sw-14Dec Dig1.8v source supplyOut
155v5v Supply-16Phi 2Phi 2 -17Phi 1Phi 1-18GndGnd-19Sec pii-20Dec BG-21EW Drive parabola out Out
22VdrBVertical drive BOut
23VdrAVertical drive AOut
24Vif 1Vision IF 1In
25Vif 2Vision IF 2In
26Vsc-27I RefReference current-28GndGnd-29Sif 1Sound IF 1In
30Sif 2Sound IF 2In
31AgcAuto matic gain controlIn
32EhtEhtIn
33SSif/Ref Iin/Avl/Ref Out-34Audio in Scart LIn
35Audio in Scart RIn
36Audio Out Scart LOut
37Audio Out Scart ROut
38-39Qsso/Amo/AudioEm-40Gnd-41PLL IFPhase Lock Loop If-42SifAgcSifAgc-43IFVo Scart 1 Video Out
44FmRo-45V8Audio Switches-46AgcsSif-47V5P25v Supply-48Svo/IfVo/Cbvs1Scart 2 Video Out
49Audio4 L InScart 2 Audio LIn
50Audio4 R InScart 2 Audio RIn
51Y4/Cvbs4Av3 Video In
52C4-53Audio2InLAv3 Audio LIn
54Audio2InRAv3 Audio RIn
55Cvbs2/yScart 1 Video In
56Audio3InL-57Audio3InR-58Y3/CvbsScart 2 Video In
59C3Scart 2 Chroma InIn
60Audio Out L SLAudio out Left SpeakerOut
61Audio Out L SRAudio Out Right SpeakerOut
62Audio Out HPLScart Audio L Out 2 / monitor OutOut
63Audio Out HPR Scart Audio R Out 2 / monitor OutOut
64Pip--
Page 12
-11-
C7WAS
CPU PORT FUNCTIONS (continued)
Pin NoFunction NameFunctionIn/Out
65SVMScan Velocity ModulationOut
66FbiSoFlyback In SandCastle OutIn/out
67HoutHorizontal Drive OutOut
68VssCombGnd
69V5Comb5v Supply-70Vin/R2/PrScart 2 R-InIn
71Uin/B2/PbScart 2 B-InIn
72Yin/G2/YScart 2 G-InIn
73Y Sync Y SyncIn
74Y outYoutOut
75Uout/Fb inScart 2 Fast BlankingIn
76Vout/Sw01-77Fbl3Scart 1 Fast BlankingIn
78R3/PrScart 1 R-InIn
79G3/YScart 1 G-InIn
80B3/PbScart 1 B-InIn
81Gnd 3Gnd-82V5P35vSupply-83BCLBeam Current LimitingIn
84Iblack-85RoutRed Drive Out
86GoutGreen DriveOut
87BoutBlue DriveOut
88V3.3A13.3v Supply-89RefAdnRef Gnd-90V3.3RefAdp3.3v Supply-91RefAd-92GndAGnd-93V1.8A1.8v Supply-94V3.3A23.3v Supply-95VssAdcGnd-96V1.8Adc1.8v Supply-97IntoRemote control InIn
98P10/Int1SClIn/out
PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM
1. The parts specification of resistors, capacitors and
coils are expressed in designated code. Please
check the parts description by the following code
table.
2. Some of transistors and diodes are indicated in
mark for the substitution of parts name. Please
check the parts name by the following code table.
3. Voltages and waveforms were taken with a video
colour bar signal(1Vp-p at 75 ohms terminated) and
controls to normal.
4. Voltages were taken with a high-impedance digital
voltmetre.
Example 2000 K K 1000 BG
Characteristic
Example 160E M 10
Capacitance value
Tolerance
Type
Rated voltage
Excepting electric capacitors, all
capacitance values of less than 1
are expressed in µF and more
than 1 are in pF.
Example L2
C1 4R7 KN
Tolerance
Inductance value
Manufacture code
Unique code
AA 1S1555,1S2076,1S2473,1SS133,DS442,1SS176,1N4148,GMA01
● Diode
MarkType number
--2SC5362SC945A 2SC1815 2SC1740 2SC1740S KSC945C
AE, F, GP, Q, RO, Y, GQ, R, SQ, R, S
BE, F, GP, Q, RO, Y, GQ, R, S
DF, GP, QY, GQ, R, S
FF, GPGR, S
HF, GP, QY, GQ, R, SY, G
IE, F, GP, Q, RO, Y, GQ, R, SY, G
GF, GPGR, SG
ADF, GQ, RY, GRQ, R, S
AEE, F, GQ, RO, Y, GRQ, R, S
● Transistor (NPN type)
MarkType number
--2SA6082SA564A 2SA1015 2SA9332SA933S KSA733C
YE, FQ, RO, Y, GQ, R
WF R Y, GR
VE, FQ, RO, Y, GQ, RY, G
UFRY, GRG
ZE, FQ, RO, Y, GQ, RQ, R
Note: Parts order must contain Service Ref. No., Part No., and descriptions.
11
9
1
3
2
8
5
6
JXPLB
Page 20
C7WAS
-19-
CHASSIS ELECTRICAL PARTS LIST
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by a mark in this parts list and the circuit diagram show components whose value have
special significance to product safety. It is particularly recommended that only parts specified on the following
parts list be used for components replacement pointed out by the mark .
All information in this manual is correct at the start of
production. Sanyo reserves the right to modify components
and procedures in order to comply with their continuous
improvement policy.
!
!
!
!
!
!
!
Page 26
Part No. SKP20443 C7WAS (SHEET 1-4)
COLOUR TELEVISION
EEEEBBBB8888----AA
AA
SERVICE REF.NO.
MODEL NUMBER
CHASSIS SERIES
CE28DN9-B-01
CE28DN9-B
The service Precaution:
The area enclosed by this line
( ) is directly connected
with AC mains voltage. When
servicing the area, connect an
isolating transformer between
TV receiver and AC line to eliminate hazard of electric shock.
Product safety notice:
Product safety should be considered
when a component replacement is
made in any area of a receiver.
Components indicated by a mark /!\ in
this circuit diagram show components
whose values have special significance
to product safety. It is particularly recommended that only parts specified on
the part service manual be used for
components replacement pointed out
by the mark.
Circuit diagram notes :
1. All resistance values are in ohms, K=1,000, M=1,000,000.
2. All resistance rated wattages are 1/6W unless otherwise noted.
3. Excepting electrolytic capacitors, all capacitance values of less
than 1 are expressed in µF and more than 1 are pF.
4. All capacitance rated voltages are 50V unless otherwise noted.
5. All inductance values are in µH.
6. Voltage readings taken a digital voltmeter are from point indicated chassis ground. Voltage readings taken by using a colour
bar signal are with all controls at normal position. Some voltages may vary with signal strength.
7. Waveforms were taken with colour bar and controls adjusted
for normal picture. Waveforms were taken by using a wide
band oscilloscope and a low capacity probe.
8. This circuit diagram covers a basic or
representative chassis only. There
may be some components or partial
circuit differences between the actual
chassis and the circuit diagram.
9.■ Diode 1S1555 may be replaced with
1S2473,1S2076 or DS472 unless
otherwise noted.
■ Transistor 2SC536(Q,R,S),
2SC1740(Q,R,S), 2SC945A(Q,R,P)
or 2SC1815(G,O,Y) unless otherwise noted.
■ Transistor 2SA608(E,F) may be
replaced with 2SA933(Q,R),
2SA564(QA,RA), or 2SA1015(O,Y)
unless otherwise noted.
Expression of capacitance and resistance in circuit diagram.
Capacitance (Example)
1000 C M 2000 D
Characteristic
Capacitance value (220pF)
Tolerance (±20%)
Kind(Ceramic)
Rated voltage (1,000V)
Resistance (Example)
1/2 N J 1.2
Resistance value (1.2Ω)
Tolerance (±5%)
Kind (M.carbon)
Rated wattage(1/2W)
D : Carbon
N : Metallized carbon
S : Oxide metallized
W : Wire wounding
C : Solid
T, A, U, D : Electrolytic
C, K, B : Ceramic
F : Mylar film
M, N : Polypropylene
Z : Metallized paper
J= ± 5%
K= ± 10%
M= ± 20%
Terminal guide
C : Collector
B : Base
E : Emitter
A : Anode
K : Kathode
Chip Components
BLOCK DIAGRAM
SPEAKER
SP901
SP902
IC001
AUDIO AMPLIFIER
PF
5
A1901
RC RECEIVER
Q866
A101
TUNER
5v30v
C609
IC601
TN6Q04
AC
SW601
T611
CONVERTER
D610
I2C BUS CONTROL
P.F
TO UOC PINS
3,100,117,118,124
IC801
MEMORY
Q202
2
TO UOC PINS
93 & 96
1V8_1
1V8_2
3v3
Q204
ON/OFF
UOC PIN 107
Q203
Q651
Q642
14v
25v
145v
+14v
-14v
1
7v
D671
Q682
IC645
5v
4
3v3 St-By
Q625
IC666
Q641
Q675
St-BY UOC
PIN 106
KEY SW
Q201
X201
127
120
9
9
14
10
11
107
106
22 23
V-OUTPUT
60 61
LA78045
SCAN COIL
IC501
VERTICAL
97
108 109
24
25
29
30
31
80
79
78
77
43
55
34
35
36
37
SC1 FB IN
SC_1 VIDEO OUT
SC_1 VIDEO IN
SCART 1 AUDIO L/R OUT
The memory IC, IC801, stores the option data of TV set and service adjustments data for each circuit, therefore,
when the memory IC is replaced, it should be programmed to the following settings and “SERVICE ADJUSTMENT”
on pages 6 to 9.
To enter to the Option Mode
+ Press and hold the F/OK button on the remote control and P▼ button on the front panel of the TV. The option
window will appear on the screen.
OPTION
SORT MODESORTING
P&P ON
WEL. TEXTON
AUTO V OLUMEOFF
SURROUNDON
VIRT SUB WOOFERON
COUNTRY UK
WIDE ON
AV3ON
TEXT NO SIGNALON
AFCOFF
ADJUST : EXIT : RECALL
OPTION MODE FOR CE28DN9-B-01
To set the Option Mode
+ Highlight the desired option item by using the P▲ or P▼ button .
+ To switch the option mode, use the Volume - (LEFT) or Volume + (RIGHT) button.
+ The data which is set in the option mode is stored into the memory IC automatically.
The following table shows the available option items and default setting mode.
TUNING
P & PON or OFFPlug & Play mode, default “ON”
WEL. TEXTON or OFFDisplay message when first set up, default “ON”
AUTO VOLUMEON or OFFAuto volume default “OFF”
SURROUNDON or OFFSurround sound default “ON”
VIRT SUBWOOFER ON or OFFVirtual Sub Woofer default “ON”
COUNTRYUK or IRE orTV system, default “UK”
BG/DK / I / LL’
WIDEON or OFFWide mode, default ON
AV3ON or OFFFront AV disable, default “ON”
TEXT NO SIGNALON or OFFDisables Text when no signal, default “ON”
AFCON or OFFAuto Frequency Control default “OFF”
Exit from the Service Mode
+ Press the MENUbutton.
SERVICE ADJUSTMENTS
After replacing the Memory IC (IC801)]
The memory IC, IC801, stores the service adjustments data for each circuit, therefore, when the memory IC is
replaced, it should be programmed by using “OPTION SETTING” on previous page and the following adjustments.
ADJUSTABLE SERVICE ADJUSTMENT
Item No.OSDDescription
7VG2Screen adjustment
151WPR - NR - Drive adjustment
152WPG - NG - Drive adjustment
304AGC Take OverAGC adjustment
314TXT - H - POSOSD Positioning adustment
Do not attempt to adjust service adjustments not listed above otherwise it may cause loss of performance and product safety.
Explanation
Timing of wide blanking front(WBF)
Timing of wide blanking rear(WBR)
Black current measuring lines in overscan
Timing of wide blanking front(WBF)
Timing of wide blanking rear(WBR)
Black current measuring lines in overscan
Track. Mode(HCO)
Vertical zoom
Vertical slope
Vertical shift
Vertical amplitude
S-correction
V.Lin.Ctrl.
V.Linearity
EW width
Horizontal shift
EW parabola/width
EW trapezium
EW upper corner parabola
EW lower corner parabola
Horizontal bow
Horizontal parallelogram
Vertical Scroll
RGB blanking mode
Extended vertical blanking
Vertical zoom
EW width
Horizontal shift
EW parabola/width
EW trapezium
EW upper corner parabola
EW lower corner parabola
Horizontal bow
Horizontal parallelogram
Vertical Scroll
Vertical zoom
EW parabola/width
EW upper corner parabola
EW lower corner parabola
Vertical Scroll
Vertical zoom
Vertical slope
EW parabola/width
EW upper corner parabola
EW lower corner parabola
Vertical Scroll
Vertical zoom
EW parabola/width
EW upper corner parabola
EW lower corner parabola
Vertical Scroll
Vertical zoom
Vertical slope
EW parabola/width
EW upper corner parabola
EW lower corner parabola
Vertical Scroll
Vertical zoom
EW width
Horizontal shift
EW parabola/width
EW upper corner parabola
EW lower corner parabola
Vertical Scroll
RGB blanking mode
Extended vertical blanking
To enter to the Service Mode
+ Press and hold the GREEN button on the remote control and then press the P▼ button on the cabinet.
To select the service item and change data value
+ To select the adjustment item, use the P▲ or P▼ button.
+ To change the service data, use the Volume -(LEFT) or Volume + (RIGHT) button.
+ The data which is set in the service mode is stored into the memory IC automatically.
SER
VICE MODE
SERVICE
000 EB8A3_52
SERVICE SERVICE SOFTWARE
ITEM ITEMVERSION
NUMBER DESCRIPTION
Exit from the Service Mode
+ Press the MENU button or turn off the TV set by using the Mains switch.
INITIALISATION OF MEMORY IC
To initialise the memory IC (IC801), press and hold the NORMALbutton on the remote control, then press
the P▼ button on the front panel of the TV set. The tv set will switch into standby mode. Turn the Mains switch Off
and On, then switch on from standby. The initialisation is now completed.
When initialised the memory IC and all of the setting data (option data and service adjustment data) stored in the IC
are reset to the default value. It is necessary to set the option settings and readjust the service adjustments listed in
this manual and to re-tune all the channels.
ADJUSTMENTS
IMPORTANT NOTICE
Do not attempt to adjust the following service adjustments except when adjustments are required in servicing
otherwise it may cause loss of performance and product safety.
+ BVOLTAGE ADJUSTMENT
1. Receive white raster pattern.
2. Set controls to normal.
3. Connect digital voltmetre to test point TP-B and GND.
4. Adjust voltage to 150 ±0.5V by using VR641.
AGC ADJUSTMENT
1. Input and tune an RF signal which is UHF to the clearest station.
2. Connect digital voltmetre to test point TP-A and GND.
4. Enter the service mode and select item no. 304. AGC
TAKEOVER
5. Press the LEVEL+ or LEVEL - button to adjust volt-
age to be 3.2Vdc.
FOCUS ADJUSTMENT
By using FOCUS VR, adjust focus control for well
defined scanning lines.
GREY SCALE ADJUSTMENT
ADJUSTMENT
SCREEN
1. Receive black and white pattern.
2. Enter the service mode and select item no. 7. VG 2
3. Turn screen VR from min to max. OSD will change
from below to above. Turn back until below appears
and then stop turning.
ADJUSTMENT
DRIVE
6. Select item no.151. WPR - N (R-Drive) or 152. WPG -
N (G-Drive) and adjust both initially to 20.
7. Change data value of each item by using LEVEL + or
LEVEL - button to obtain the proper white balance.
CORNER ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 25. UC
PARABOLA for top corner adjustment OR item no.
26. LC PARABOLA for bottom corner adjustment.
3. Press the LEVEL+ or LEVEL - button to correct the
distortion of the vertical line around the corners.
HORIZONTALADJUSTMENT
HORIZONT
1. Receive circular pattern and set screen mode to
2. Enter the service mode and select item no. 22. HOR.
3. Press the LEVEL+ or LEVEL - button to adjust the
HORIZONTAL WIDTH ADJUSTMENT
1. Receive circular pattern and set screen mode to
2. Enter to the service mode and select item 21. EW
3. Press the LEVEL+ or LEVEL - button to adjust the
AL CENTRING ADJUSTMENT
“FULL”.
SHIFT.
horizontal centre.
“FULL”.
WIDTH.
horizontal width.
HIGH-VOLTAGE CONFIRMATION
1. Receive circular pattern and set screen mode to
“FULL”.
2. Set controls for brightness and contrast to maximum.
3. Connect high-voltage meter to the anode of CRT and
GND.
4. Confirm that voltage is 26 kV ±1.0kV at maximum
beam current 1.2mA ± 0.05
PCC ADJUSTMENT
PCC
ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 23. EW
PARABOLA
3. Press the LEVEL+ or LEVEL - button to adjust the
vertical line to be straight.
TRAPEZOID
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 24.
TRAPEZIUM
3. Press the LEVEL+ or LEVEL - button to correct the
trapezum distortion of the vertical line.
ADJUSTMENT
VERTICAL ADJUSTMENT
VERTICAL
1. Receive circular pattern and set screen mode to
2. Enter the service mode and select item no.16.VERT
.3 Press the LEVEL+ or LEVEL - button to adjust the
VERTICAL HEIGHT ADJUSTMENT
1. Receive circular pattern and set screen mode to
2. Enter the service mode and select item no. 17. VERT
3. Press the LEVEL+ or LEVEL - button to adjust the
CENTRING ADJUSTMENT
“FULL”.
SHIFT.
vertical centre.
“FULL”.
AMPL.
vertical height.
OSD POSITIONING ADJUSTMENT
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 314. TXT H - POS.
3. Press the LEVEL+ or LEVEL - button to adjust
proper OSD positioning.
9Vref3.3v Reference-10XTAL INClock OscillatorIn
11XTAL OUTClock OscillatorOut
12VssGnd-13Vguard sw-14Dec Dig1.8v source supplyOut
155v5v Supply-16Phi 2Phi 2 -17Phi 1Phi 1-18GndGnd-19Sec pii-20Dec BG-21EW Drive parabola out Out
22VdrBVertical drive BOut
23VdrAVertical drive AOut
24Vif 1Vision IF 1In
25Vif 2Vision IF 2In
26Vsc-27I RefReference current-28GndGnd-29Sif 1Sound IF 1In
30Sif 2Sound IF 2In
31AgcAuto matic gain controlIn
32EhtEhtIn
33SSif/Ref Iin/Avl/Ref Out-34Audio in Scart LIn
35Audio in Scart RIn
36Audio Out Scart LOut
37Audio Out Scart ROut
38-39Qsso/Amo/AudioEm-40Gnd-41PLL IFPhase Lock Loop If-42SifAgcSifAgc-43IFVo Scart 1 Video Out
44FmRo-45V8Audio Switches-46AgcsSif-47V5P25v Supply-48Svo/IfVo/Cbvs1Scart 2 Video Out
49Audio4 L InScart 2 Audio LIn
50Audio4 R InScart 2 Audio RIn
51Y4/Cvbs4Av3 Video In
52C4-53Audio2InLAv3 Audio LIn
54Audio2InRAv3 Audio RIn
55Cvbs2/yScart 1 Video In
56Audio3InL-57Audio3InR-58Y3/CvbsScart 2 Video In
59C3Scart 2 Chroma InIn
60Audio Out L SLAudio out Left SpeakerOut
61Audio Out L SRAudio Out Right SpeakerOut
62Audio Out HPLScart Audio L Out 2 / monitor OutOut
63Audio Out HPR Scart Audio R Out 2 / monitor OutOut
64Pip--
Pin NoFunction NameFunctionIn/Out
65SVMScan Velocity ModulationOut
66FbiSoFlyback In SandCastle OutIn/out
67HoutHorizontal Drive OutOut
68VssCombGnd
69V5Comb5v Supply-70Vin/R2/PrScart 2 R-InIn
71Uin/B2/PbScart 2 B-InIn
72Yin/G2/YScart 2 G-InIn
73Y Sync Y SyncIn
74Y outYoutOut
75Uout/Fb inScart 2 Fast BlankingIn
76Vout/Sw01-77Fbl3Scart 1 Fast BlankingIn
78R3/PrScart 1 R-InIn
79G3/YScart 1 G-InIn
80B3/PbScart 1 B-InIn
81Gnd 3Gnd-82V5P35vSupply-83BCLBeam Current LimitingIn
84Iblack-85RoutRed Drive Out
86GoutGreen DriveOut
87BoutBlue DriveOut
88V3.3A13.3v Supply-89RefAdnRef Gnd-90V3.3RefAdp3.3v Supply-91RefAd-92GndAGnd-93V1.8A1.8v Supply-94V3.3A23.3v Supply-95VssAdcGnd-96V1.8Adc1.8v Supply-97IntoRemote control InIn
98P10/Int1SClIn/out
The area enclosed by this line
( ) is directly connected
with AC mains voltage. When
servicing the area, connect an
isolating transformer between
TV receiver and AC line to eliminate hazard of electric shock.
Product safety notice:
Product safety should be considered
when a component replacement is
made in any area of a receiver.
Components indicated by a mark /!\ in
this circuit diagram show components
whose values have special significance
to product safety. It is particularly recommended that only parts specified on
the part service manual be used for
components replacement pointed out
by the mark.
Circuit diagram notes :
1. All resistance values are in ohms, K=1,000, M=1,000,000.
2. All resistance rated wattages are 1/6W unless otherwise noted.
3. Excepting electrolytic capacitors, all capacitance values of less
than 1 are expressed in µF and more than 1 are pF.
4. All capacitance rated voltages are 50V unless otherwise noted.
5. All inductance values are in µH.
6. Voltage readings taken a digital voltmeter are from point indi-
cated chassis ground. Voltage readings taken by using a colour
bar signal are with all controls at normal position. Some voltages may vary with signal strength.
7. Waveforms were taken with colour bar and controls adjusted
for normal picture. Waveforms were taken by using a wide
band oscilloscope and a low capacity probe.
8. This circuit diagram covers a basic or
representative chassis only. There
may be some components or partial
circuit differences between the actual
chassis and the circuit diagram.
9.■ Diode 1S1555 may be replaced with
1S2473,1S2076 or DS472 unless
otherwise noted.
■ Transistor 2SC536(Q,R,S),
2SC1740(Q,R,S), 2SC945A(Q,R,P)
or 2SC1815(G,O,Y) unless otherwise noted.
■ Transistor 2SA608(E,F) may be
replaced with 2SA933(Q,R),
2SA564(QA,RA), or 2SA1015(O,Y)
unless otherwise noted.
Expression of capacitance and resistance in circuit diagram.
Capacitance (Example)
1000 C M 2000 D
Characteristic
Capacitance value (220pF)
Tolerance (±20%)
Kind(Ceramic)
Rated voltage (1,000V)
Resistance (Example)
1/2 N J 1.2
Resistance value (1.2Ω)
Tolerance (±5%)
Kind (M.carbon)
Rated wattage(1/2W)
D : Carbon
N : Metallized carbon
S : Oxide metallized
W : Wire wounding
C : Solid
T, A, U, D : Electrolytic
C, K, B : Ceramic
F : Mylar film
M, N : Polypropylene
Z : Metallized paper
25-C5VRL / CE25DN9-B
EB8A 0SDC5VRL---01
DATE 08.06.04
EI N0:040063ED
L608
Z20103---
L601A-4
2400030
4
1
1
1
L601A-1
2400030
L607
Z20103---
JS609
400EM270XG
D616
RB441Q-40
R612
DJ
5.6K
R613
1/2DJ
100K
2000KK470CRD
J11B2570N
L721
C401
KK0.01GQ
T451-1
2400030
1
1
3
T451-10
2400010
1
10
T451-2
2400030
1
2
T451-4
2400010
1
4
T451-6
2400010
1
6
T451-5
2400010
1
5
T451-3
2400010
1
8
D442
1SS355
C445
EM10CD
S10B6340N
F601-2
J20B00100
:J20B0170J
C601
250HM0.1XD
:250GM0.1XBJ
:250MK0.1VA
J
C609
:400EM
270VEM
C609-2
2400010
:400EM
1
270VEN
C609-1
2400010
1
C618
C611
CJ47
CGQ
D613
MTZJ
5.1B
C612
BXXAAQ0403XPH
11
2
6
3
8
4
5
6
10
10
R725
1/2DJ1K
J
T451
L40B14200
D446
R447
MTZJ
1/16GJ
10B
4.7KC
D445
1SS355
:J20B0170J
C603
C604
1000KK1000HB
:1000KK1000CBB
1000KK1000HB
:1000KK1000CBB
FJ1000D
R608
DJ270
IC601-1
1AA2HEA0235D-
9
9
Page 37
Part No. SKP20435 C5VRL (SHEET 3-4)
MAIN BOARD (Circuit side)
A1901
D1911
D1901
DANGER
LIVE MAINS
VA601
SW601
L601
KFF-1
1
F601
C601
Q461
L608
T4AH250V
T4AL250V
Q461-1
C486
KFF
2
KFF-2
F601-1F601-2
SW1901SW1902
C602
R601
KF-2
KE
KE-2KE-1
2
C609
KF
KF-1
KF
PS601
IC601
SW1903
RL601
R602A
SW1904
R606
R614
KA
KGG
R607
D610
R637
VR641
C655
C637
D633
D639
B10E33300
C682
R667
C643
D635
D642
IC643
IC666
C667
R692
R691
C650
C685
K2
C691
C640
C633
A
K1101
R699
K1101
K031
C023
B10E3330B
***
C710
IC701
R715
R725
R705
A
R742
K7P
K701
1
K7V
R648
IC641
C841
R644
C648
C645
K7Q
C022
K7Y
3
1
J006
JW1
JW3
KEM1
IC001
12
KR-2
21
KR-1
R031
C009
C010
Q202
KRKL
C451
EB8A
C437
R474
L461
R435
L441
C446
KSC
C441
R451
R441
T451
C443
Q451
L442
C481
C427
D441
Q425
C423
L462
KQ
R477
C429
C421
C422
C426
K4A
Q432
C424
C466
T611
D630
JW2
C642
R449
TP-B
C529
D648
C501
C686
R502
Q642
R501
R515
C205
K4
IC801
C206
C203
C803
8
X201
C210
C288
5
C283
C209
X121
T131
X122
C214
B10E3330A
DB=KG_PCB
CELL=B10E33300
A
***
C281
C503
C434
3
R511
R433
R512
IC501
C271
KP
C268
1
C256
C236
C229
C233
K5
T431
C239
C502
K4B
K3
C1001
TP-A
C103
A101
C104
C102
K1002
K1001
K1003
KEM2
C101
17
KCPA
JWA
JWB
Page 38
i
c
c
To enter to the Service Mode
+ Press and hold the GREEN button on the remote control and then press the P▼ button on the cabinet.
OPTION SETTING
[After replacing the Memory IC (IC801)]
The memory IC, IC801, stores the option data of TV set and service adjustments data for each circuit, therefore,
when the memory IC is replaced, it should be programmed to the following settings and “SERVICE ADJUSTMENT”
on pages 6 to 9.
To enter to the Option Mode
+ Press and hold the F/OK button on the remote control and P▼ button on the front panel of the TV. The option
window will appear on the screen.
OPTION
SORT MODESORTING
P&P ON
WEL. TEXTON
AUTO V OLUMEOFF
SURROUNDON
VIRT SUB WOOFERON
COUNTRY UK
WIDE ON
AV3ON
TEXT NO SIGNALON
AFCOFF
ADJUST : EXIT : RECALL
OPTION MODE FOR CE25DN9-B-01
To set the Option Mode
+ Highlight the desired option item by using the P▲ or P▼ button .
+ To switch the option mode, use the Volume - (LEFT) or Volume + (RIGHT) button.
+ The data which is set in the option mode is stored into the memory IC automatically.
The following table shows the available option items and default setting mode.
TUNING
P & PON or OFFPlug & Play mode, default “ON”
WEL. TEXTON or OFFDisplay message when first set up, default “ON”
To select the service item and change data value
+ To select the adjustment item, use the P▲ or P▼ button.
+ To change the service data, use the Volume -(LEFT) or Volume + (RIGHT) button.
+ The data which is set in the service mode is stored into the memory IC automatically.
SER
VICE MODE
SERVICE
000 EB8A3_52
SERVICE SERVICE SOFTWARE
ITEM ITEMVERSION
NUMBER DESCRIPTION
Exit from the Service Mode
+ Press the MENU button or turn off the TV set by using the Mains switch.
INITIALISATION OF MEMORY IC
To initialise the memory IC (IC801), press and hold the NORMALbutton on the remote control, then press
the P▼ button on the front panel of the TV set. The tv set will switch into standby mode. Turn the Mains switch Off
and On, then switch on from standby. The initialisation is now completed.
When initialised the memory IC and all of the setting data (option data and service adjustment data) stored in the IC
are reset to the default value. It is necessary to set the option settings and readjust the service adjustments listed in
this manual and to re-tune all the channels.
ADJUSTMENTS
AUTO VOLUMEON or OFFAuto volume default “OFF”
SURROUNDON or OFFSurround sound default “ON”
VIRT SUB WOOFER ON or OFFVirtual Sub Woofer default “ON”
COUNTRYUK or IRE orTV system, default “UK”
BG/DK / I / LL’
WIDEON or OFFWide mode, default ON
AV3ON or OFFFront AV disable, default “ON”
TEXT NO SIGNALON or OFFDisables Text when no signal, default “ON”
AFCON or OFFAuto Frequency Control default “OFF”
Exit from the Service Mode
+ Press the MENUbutton.
SERVICE ADJUSTMENTS
After replacing the Memory IC (IC801)]
The memory IC, IC801, stores the service adjustments data for each circuit, therefore, when the memory IC is
replaced, it should be programmed by using “OPTION SETTING” on previous page and the following adjustments.
ADJUSTABLE SERVICE ADJUSTMENT
Item No.OSDDescription
7VG2Screen adjustment
151WPR - NR - Drive adjustment
152WPG - NG - Drive adjustment
304AGC Take OverAGC adjustment
314TXT - H - POSOSD Positioning adustment
Do not attempt to adjust service adjustments not listed above otherwise it may cause loss of performance and product safety.
Explanation
Track. Mode(HCO)
Vertical zoom
Vertical slope
Vertical shift
Vertical amplitude
S-correction
Horizontal shift
EW parabola/width
EW trapezium
EW upper corner parabola
EW lower corner parabola
Horizontal bow
Horizontal parallelogram
Vertical Scroll
RGB blanking mode
Timing of wide blanking front(WBF)
Timing of wide blanking rear(WBR)
Black current measuring lines in overs
Extended vertical blanking
Vertical zoom
Horizontal shift
EW parabola/width
EW trapezium
EW upper corner parabola
EW lower corner parabola
Horizontal bow
Horizontal parallelogram
Vertical Scroll
Vertical zoom
EW parabola/width
EW upper corner parabola
EW lower corner parabola
Vertical Scroll
Vertical zoom
Vertical slope
EW parabola/width
EW upper corner parabola
EW lower corner parabola
Vertical Scroll
Vertical zoom
EW parabola/width
EW upper corner parabola
EW lower corner parabola
Vertical Scroll
Vertical zoom
Vertical slope
EW parabola/width
EW upper corner parabola
EW lower corner parabola
Vertical Scroll
Vertical zoom
Horizontal shift
EW parabola/width
EW upper corner parabola
EW lower corner parabola
Vertical Scroll
RGB blanking mode
Timing of wide blanking front(WBF)
Timing of wide blanking rear(WBR)
Black current measuring lines in overs
Extended vertical blanking
V.Lin.Ctrl.
V.Linearity
EW width
EW width
EW width
IMPORTANT NOTICE
Do not attempt to adjust the following service adjustments except when adjustments are required in servicing
otherwise it may cause loss of performance and product safety.
+ B VOLTAGE ADJUSTMENT
1. Receive white raster pattern.
2. Set controls to normal.
3. Connect digital voltmetre to test point TP-B and GND.
4. Adjust voltage to 150 ±0.5V by using VR641.
AGC ADJUSTMENT
1. Input and tune an RF signal which is UHF to the clearest station.
2. Connect digital voltmetre to test point TP-A and GND.
4. Enter the service mode and select item no. 304. AGC
TAKEOVER
5. Press the LEVEL+ or LEVEL - button to adjust volt-
age to be 3.2Vdc.
FOCUS ADJUSTMENT
By using FOCUS VR, adjust focus control for well
defined scanning lines.
GREY SCALE ADJUSTMENT
ADJUSTMENT
SCREEN
1. Receive black and white pattern.
2. Enter the service mode and select item no. 7. VG 2
3. Turn screen VR from min to max. OSD will change
from below to above. Turn back until below appears
and then stop turning.
ADJUSTMENT
DRIVE
6. Select item no.151. WPR - N (R-Drive) or 152. WPG -
N (G-Drive) and adjust both initially to 20.
7. Change data value of each item by using LEVEL + or
LEVEL - button to obtain the proper white balance.
CORNER ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 25. UC
PARABOLA for top corner adjustment OR item no.
26. LC PARABOLA for bottom corner adjustment.
3. Press the LEVEL+ or LEVEL - button to correct the
distortion of the vertical line around the corners.
HORIZONTALADJUSTMENT
HORIZONT
1. Receive circular pattern and set screen mode to
2. Enter the service mode and select item no. 22. HOR.
3. Press the LEVEL+ or LEVEL - button to adjust the
HORIZONTAL WIDTH ADJUSTMENT
1. Receive circular pattern and set screen mode to
2. Enter to the service mode and select item 21. EW
3. Press the LEVEL+ or LEVEL - button to adjust the
AL CENTRING ADJUSTMENT
“FULL”.
SHIFT.
horizontal centre.
“FULL”.
WIDTH.
horizontal width.
HIGH-VOLTAGE CONFIRMATION
1. Receive circular pattern and set screen mode to
“FULL”.
2. Set controls for brightness and contrast to maximum.
3. Connect high-voltage meter to the anode of CRT and
GND.
4. Confirm that voltage is 26 kV ±1.0kV at maximum
beam current 1.2mA ± 0.05
PCC ADJUSTMENT
PCC
ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 23. EW
PARABOLA
3. Press the LEVEL+ or LEVEL - button to adjust the
vertical line to be straight.
TRAPEZOID
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 24.
TRAPEZIUM
3. Press the LEVEL+ or LEVEL - button to correct the
trapezum distortion of the vertical line.
ADJUSTMENT
VERTICAL ADJUSTMENT
VERTICAL
1. Receive circular pattern and set screen mode to
2. Enter the service mode and select item no.16.VERT
.3 Press the LEVEL+ or LEVEL - button to adjust the
VERTICAL HEIGHT ADJUSTMENT
1. Receive circular pattern and set screen mode to
2. Enter the service mode and select item no. 17. VERT
3. Press the LEVEL+ or LEVEL - button to adjust the
CENTRING ADJUSTMENT
“FULL”.
SHIFT.
vertical centre.
“FULL”.
AMPL.
vertical height.
OSD POSITIONING ADJUSTMENT
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 314. TXT H - POS.
3. Press the LEVEL+ or LEVEL - button to adjust
proper OSD positioning.
314 TXT - H - POS 7
Page 39
Part No. SKP20435 C5VRL(SHEET 4-4)
CPU PORT FUNCTIONS
t
()
Pin No Function NameFunctionIn/Out
65SVMScan Velocity ModulationOut
66FbiSoFlyback In SandCastle OutIn/out
67HoutHorizontal Drive OutOut
68VssCombGnd
69V5Comb5v Supply-70Vin/R2/PrScart 2 R-InIn
71Uin/B2/PbScart 2 B-InIn
72Yin/G2/YScart 2 G-InIn
73Y Sync Y SyncIn
74Y outYoutOut
75Uout/Fb inScart 2 Fast BlankingIn
76Vout/Sw01-77Fbl3Scart 1 Fast BlankingIn
78R3/PrScart 1 R-InIn
79G3/YScart 1 G-InIn
80B3/PbScart 1 B-InIn
81Gnd 3Gnd-82V5P35vSupply-83BCLBeam Current LimitingIn
84Iblack-85RoutRed Drive Out
86GoutGreen DriveOut
87BoutBlue DriveOut
88V3.3A13.3v Supply-89RefAdnRef Gnd-90V3.3RefAdp3.3v Supply-91RefAd-92GndAGnd-93V1.8A1.8v Supply-94V3.3A23.3v Supply-95VssAdcGnd-96V1.8Adc1.8v Supply-97IntoRemote control InIn
98P10/Int1SClIn/out
9Vref3.3v Reference-10XTAL INClock OscillatorIn
11XTAL OUTClock OscillatorOut
12VssGnd-13Vguard sw-14Dec Dig1.8v source supplyOut
155v5v Supply-16Phi 2Phi 2 -17Phi 1Phi 1-18GndGnd-19Sec pii-20Dec BG-21EW Drive parabola out Out
22VdrBVertical drive BOut
23VdrAVertical drive AOut
24Vif 1Vision IF 1In
25Vif 2Vision IF 2In
26Vsc-27I RefReference current-28GndGnd-29Sif 1Sound IF 1In
30Sif 2Sound IF 2In
31AgcAuto matic gain controlIn
32EhtEhtIn
33SSif/Ref Iin/Avl/Ref Out-34Audio in Scart LIn
35Audio in Scart RIn
36Audio Out Scart LOut
37Audio Out Scart ROut
38-39Qsso/Amo/AudioEm-40Gnd-41PLL IFPhase Lock Loop If-42SifAgcSifAgc-43IFVo Scart 1 Video Out
44FmRo-45V8Audio Switches-46AgcsSif-47V5P25v Supply-48Svo/IfVo/Cbvs1Scart 2 Video Out
49Audio4 L InScart 2 Audio LIn
50Audio4 R InScart 2 Audio RIn
51Y4/Cvbs4Av3 Video In
52C4-53Audio2InLAv3 Audio LIn
54Audio2InRAv3 Audio RIn
55Cvbs2/yScart 1 Video In
56Audio3InL-57Audio3InR-58Y3/CvbsScart 2 Video In
59C3Scart 2 Chroma InIn
60Audio Out L SLAudio out Left SpeakerOut
61Audio Out L SRAudio Out Right SpeakerOut
62Audio Out HPLScart Audio L Out 2 / monitor OutOut
63Audio Out HPR Scart Audio R Out 2 / monitor OutOut
64Pip--
Page 40
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C5VRL
SAFETY PRECAUTION
X-RADIATION PRECAUTION
The primary source of X-RADIATION in the television receiver is the picture tube. The picture tube is specially
constructed to limit X-RADIATION emissions. For continued X-RADIATION protection, the replacement tube
must be the same type as the original including suffix letter. Excessive high voltage may produce potentially
hazardous X-RADIATION. To avoid such hazards, the high voltage must be maintained within specified limit.
Refer to this service manual, high voltage adjustment for specific high voltage limit. If high voltage exceeds
specified limits, take necessary corrective action. Carefully follow the instructions for +B1 volt power supply
adjustment, and high voltage adjustment to maintain the high voltage within the specified limits.
PRODUCT SAFETY NOTICE
SPECIFICATIONS
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by markin the parts list and the schematic diagram designate components in which
safety can be of special significance. It is particularly recommended that only parts designated on the parts list in
this manual be used for component replacement designated by mark. No deviations from resistance wattage
or voltage ratings may be made for replacement items designated by mark.
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 notes
provided on the cabinet back, inside the cabinet, on
the chassis or the picture tube.
3: When replacing a chassis in the cabinet, always be
certain that all the protective devices are installed
properly, such as, control knobs, adjustment covers
or shields, barriers, isolation resistor-capacitor networks
etc. Before returning any television to the customer,
the service technician must be sure that it is completely
safe to operate without danger of electrical shock.
Power source AC 220~240V, 50Hz
Television system System I
Colour system PAL/NTSC4.43 (PAL/NTSC4.43/NTSC3.58 IN AV MODE)
Receiving channel UHF: #21~69
Aerial input impedance 75ohm
Rear AV terminal
AV1:CENELEC standard
INPUT: Composite video, RGB and Audio L/R
OUTPUT: TV-output with composite video and audio L/R
AV2:CENELEC standard
INPUT: Composite video, RGB, S-VHS and Audio L/R
OUTPUT: Monitor output with composite video and Audio L/R
Front AVterminal
AV3:RCA jacks
INPUT: Composite video and Audio L/R
Sound output(Music) 5 x 2
Dimensions (WxHxD) 680 x 543 x 442mm
Weight 26 Kg
!
!
!
Page 41
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C5VRL
BLOCK DIAGRAM
This is a diagram for all models and therefore differs slightly from the actual block diagram.
Outline
SW601
AC
SCAN COIL
VERTICAL
V-OUTPUT
LA78045
IC501
D610
Q642
Q675
Q641
St-BY UOC
PIN 106
Q625
106
22 23
145v
TN6Q04
IC601
Q651
+14v
-14v
Q682
3v3 St-By
IC666
3v3
ON/OFF
UOC PIN 107
107
11
D671
TO UOC PINS
93 & 96
X201
10
7v
Q203
1V8_2
25v
4
Q204
C609
14v
1
5v
2
14
IC645
1V8_1
Q201
CONVERTER
P.F
3,100,117,118,124
TO UOC PINS
Q202
IC801
MEMORY
9
9
T611
I
2
C BUS CONTROL
KEY SW
12031127
60 61
SPEAKER
SP901
SP902
IC001
AUDIO AMPLIFIER
PF
HORIZONTAL
SCAN COIL
ON/OFF CONTROL
CPU PIN 106
Q402
Q403
To CRT
200v
Q461
Q401
SCREEN & FOCUS
Q462
L461
L462
Heater
Q432
CRT
T451 FLYBACK
128
D441
2
6
Q439
Q431
84 85 86
AV3 AUDIO L/R & VIDEO IN
145V
K1101
BOUT
GOUT
R OUT
IK
IC7 01
50
515354
62
63
SCART 2 AUDIO L/R OUT
SCART 2 AUDIO L/R IN
PICTURE TUBE
UOC
49
48
58
72
71
70
SC_2 VIDEO IN
SC_2 VIDEO OUT
SC_2 R-IN
SC_2 B- IN
SC_2 G -IN
Q1003
Q1004
K1002
SCART 2
553435
36
37
SCART 1 AUDIO L/R IN
SCART 1 AUDIO L/R OUT
SC_1 VIDEO IN
K1001
SCART 1
43
75
SC_2 FB -IN
807978
77
SC_1 VIDEO OUT
SC1 FB IN
SC_1 R-IN
SC_1 G-IN
SC_1 B-IN
Q1001
Q1002
30
X122
108 109
29
25
X121
SIF IN
97
24
IF IN
Q866
5v30v
A1901
RC RECEIVER
TUNER
A101
5
H.V
Page 42
-4-
C5VRL
(A)
(A)
CABINET DISASSEMBLY
CABINET BACK DISASSEMBLY
1. Remove 9 screws(A) for 25”
2. Pull out the cabinet back.
(A)
(A)
(A)
(A)
(A)
(A)
(A)
Page 43
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C5VRL
OPTION SETTING
[After replacing the Memory IC (IC801)]
The memory IC, IC801, stores the option data of TV set and service adjustments data for each circuit, therefore,
when the memory IC is replaced, it should be programmed to the following settings and “SERVICE ADJUSTMENT”
on pages 6 to 9.
To enter to the Option Mode
+ Press and hold the F/OK button on the remote control and P▼ button on the front panel of the TV. The option
window will appear on the screen.
To set the Option Mode
+ Highlight the desired option item by using the P▲ or P▼ button .
+ To switch the option mode, use the Volume - (LEFT) or Volume + (RIGHT) button.
+ The data which is set in the option mode is stored into the memory IC automatically.
The following table shows the available option items and default setting mode.
TUNING
P & PON or OFFPlug & Play mode, default “ON”
WEL. TEXTON or OFFDisplay message when first set up, default “ON”
AUTO VOLUMEON or OFFAuto volume default “OFF”
SURROUNDON or OFFSurround sound default “ON”
VIRT SUB WOOFER ON or OFFVirtual Sub Woofer default “ON”
COUNTRYUK or IRE orTV system, default “UK”
BG/DK / I / LL’
WIDEON or OFFWide mode, default ON
AV3ON or OFFFront AV disable, default “ON”
TEXT NO SIGNALON or OFFDisables Text when no signal, default “ON”
AFCON or OFFAuto Frequency Control default “OFF”
OPTION MODE FOR CE25DN9-B-01
i
OPTION
SORT MODESORTING
P&P ON
WEL. TEXTON
AUT O VOLUMEOFF
SURROUNDON
VIRT SUB WOOFERON
COUNTRY UK
WIDE ON
AV3ON
TEXT NO SIGNALON
AFCOFF
ADJUST : EXIT : RECALL
Page 44
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C5VRL
SERVICE ADJUSTMENTS
After replacing the Memory IC (IC801)]
The memory IC, IC801, stores the service adjustments data for each circuit, therefore, when the memory IC is
replaced, it should be programmed by using “OPTION SETTING” on previous page and the following adjustments.
ADJUSTABLE SERVICE ADJUSTMENT
c
Item No.OSDDescription
7VG2Screen adjustment
151WPR - NR - Drive adjustment
152WPG - NG - Drive adjustment
304AGC Take OverAGC adjustment
314TXT - H - POSOSD Positioning adustment
IMPORTANT NOTICE
Do not attempt to adjust service adjustments not listed above otherwise it may cause loss of performance and product safety.
EW Width50HzNatural / or 4:3 squeeze mode
Hor. Shift50HzNatural / or 4:3 squeeze mode
EW Parabola50HzNatural / or 4:3 squeeze mode
Trapezium50HzNatural / or 4:3 squeeze mode
UC Parabola50HzNatural / or 4:3 squeeze mode
LC Parabola50HzNatural / or 4:3 squeeze mode
Hor. Bow50HzNatural / or 4:3 squeeze mode
Parallel50HzNatural / or 4:3 squeeze mode
Vert. Scroll 50HzNatural / or 4:3 squeeze mode
FrequencyWide Mode
50HzFull
50HzFull
50HzFull
50HzFull
50HzFull
Explanation
Track. Mode(HCO)
Vertical zoom
Vertical slope
Vertical shift
Vertical amplitude
S-correction
V.Lin.Ctrl.
V.Linearity
EW width
Horizontal shift
EW parabola/width
EW trapezium
EW upper corner parabola
EW lower corner parabola
Horizontal bow
Horizontal parallelogram
Vertical Scroll
RGB blanking mode
Timing of wide blanking front(WBF)
Timing of wide blanking rear(WBR)
Black current measuring lines in overs
Extended vertical blanking
Vertical zoom
EW width
Horizontal shift
EW parabola/width
EW trapezium
EW upper corner parabola
EW lower corner parabola
Horizontal bow
Horizontal parallelogram
Vertical Scroll
Page 45
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C5VRL
To enter to the Service Mode
+ Press and hold the GREEN button on the remote control and then press the P▼ button on the cabinet.
To select the service item and change data value
+ To select the adjustment item, use the P▲ or P▼ button.
+ To change the service data, use the Volume -(LEFT) or Volume + (RIGHT) button.
+ The data which is set in the service mode is stored into the memory IC automatically.
SERVICE MODE
SERVICE SERVICE SOFTWARE
ITEM ITEMVERSION
NUMBER DESCRIPTION
Exit from the Service Mode
+ Press the MENU button or turn off the TV set by using the Mains switch.
INITIALISATION OF MEMORY IC
To initialise the memory IC (IC801), press and hold the NORMALbutton on the remote control, then press
the P▼ button on the front panel of the TV set. The tv set will switch into standby mode. Turn the Mains switch Off
and On, then switch on from standby. The initialisation is now completed.
When initialised the memory IC and all of the setting data (option data and service adjustment data) stored in the IC
are reset to the default value. It is necessary to set the option settings and readjust the service adjustments listed in
this manual and to re-tune all the channels.
SERVICE
000 EB8A3_52
Page 46
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C5VRL
ADJUSTMENTS
IMPORTANT NOTICE
Do not attempt to adjust the following service adjustments except when adjustments are required in servicing
otherwise it may cause loss of performance and product safety.
1. Receive white raster pattern.
2. Set controls to normal.
3. Connect digital voltmetre to test point TP-B and GND.
4. Adjust voltage to 150 ±0.5V by using VR641.
1. Input and tune an RF signal which is UHF to the clearest station.
2. Connect digital voltmetre to test point TP-A and GND.
4. Enter the service mode and select item no. 304. AGC
TAKE OVER
5. Press the LEVEL+ or LEVEL - button to adjust volt-
age to be 3.2Vdc.
By using FOCUS VR, adjust focus control for well
defined scanning lines.
SCREEN ADJUSTMENT
1. Receive black and white pattern.
2. Enter the service mode and select item no. 7. VG 2
3. Turn screen VR from min to max. OSD will change
from below to above. Turn back until below appears
and then stop turning.
DRIVE ADJUSTMENT
6. Select item no.151. WPR - N (R-Drive) or 152. WPG -
N (G-Drive) and adjust both initially to 20.
7. Change data value of each item by using LEVEL + or
LEVEL - button to obtain the proper white balance.
PCC ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 23. EW
PARABOLA
3. Press the LEVEL+ or LEVEL - button to adjust the
vertical line to be straight.
TRAPEZOID ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 24.
TRAPEZIUM
3. Press the LEVEL+ or LEVEL - button to correct the
trapezum distortion of the vertical line.
PCC ADJUSTMENT
GREY SCALE ADJUSTMENT
FOCUS ADJUSTMENT
AGC ADJUSTMENT
+ B VOLTAGE ADJUSTMENT
Page 47
-9-
C5VRL
CORNER ADJUSTMENT
1. Receive cross hatch pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 25. UC
PARABOLA for top corner adjustment OR item no.
26. LC PARABOLA for bottom corner adjustment.
3. Press the LEVEL+ or LEVEL - button to correct the
distortion of the vertical line around the corners.
HORIZONTAL CENTRING ADJUSTMENT
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 22. HOR.
SHIFT.
3. Press the LEVEL+ or LEVEL - button to adjust the
horizontal centre.
HORIZONTAL WIDTH ADJUSTMENT
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter to the service mode and select item 21. EW
WIDTH.
3. Press the
LEVEL+ or LEVEL - button to adjust the
horizontal width.
1. Receive circular pattern and set screen mode to
“FULL”.
2. Set controls for brightness and contrast to maximum.
3. Connect high-voltage meter to the anode of CRT and
GND.
4. Confirm that voltage is 26 kV ±1.0kV at maximum
beam current 1.2mA ± 0.05
VERTICAL CENTRING ADJUSTMENT
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no.16.VERT
SHIFT.
.3 Press the LEVEL+ or LEVEL - button to adjust the
vertical centre.
VERTICAL HEIGHT ADJUSTMENT
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 17. VERT
AMPL.
3. Press the LEVEL+ or LEVEL - button to adjust the
vertical height.
1. Receive circular pattern and set screen mode to
“FULL”.
2. Enter the service mode and select item no. 314. TXT H - POS.
9Vref3.3v Reference-10XTAL INClock OscillatorIn
11XTAL OUTClock OscillatorOut
12VssGnd-13Vguard sw-14Dec Dig1.8v source supplyOut
155v5v Supply-16Phi 2Phi 2 -17Phi 1Phi 1-18GndGnd-19Sec pii-20Dec BG-21EW Drive parabola out Out
22VdrBVertical drive BOut
23VdrAVertical drive AOut
24Vif 1Vision IF 1In
25Vif 2Vision IF 2In
26Vsc-27I RefReference current-28GndGnd-29Sif 1Sound IF 1In
30Sif 2Sound IF 2In
31AgcAuto matic gain controlIn
32EhtEhtIn
33SSif/Ref Iin/Avl/Ref Out-34Audio in Scart LIn
35Audio in Scart RIn
36Audio Out Scart LOut
37Audio Out Scart ROut
38-39Qsso/Amo/AudioEm-40Gnd-41PLL IFPhase Lock Loop If-42SifAgcSifAgc-43IFVo Scart 1 Video Out
44FmRo-45V8Audio Switches-46AgcsSif-47V5P25v Supply-48Svo/IfVo/Cbvs1Scart 2 Video Out
49Audio4 L InScart 2 Audio LIn
50Audio4 R InScart 2 Audio RIn
51Y4/Cvbs4Av3 Video In
52C4-53Audio2InLAv3 Audio LIn
54Audio2InRAv3 Audio RIn
55Cvbs2/yScart 1 Video In
56Audio3InL-57Audio3InR-58Y3/CvbsScart 2 Video In
59C3Scart 2 Chroma InIn
60Audio Out L SLAudio out Left SpeakerOut
61Audio Out L SRAudio Out Right SpeakerOut
62Audio Out HPLScart Audio L Out 2 / monitor OutOut
63Audio Out HPR Scart Audio R Out 2 / monitor OutOut
64Pip--
Page 49
-11-
C5VRL
CPU PORT FUNCTIONS (continued)
Pin No Function NameFunctionIn/Out
65SVMScan Velocity ModulationOut
66FbiSoFlyback In SandCastle OutIn/out
67HoutHorizontal Drive OutOut
68VssCombGnd
69V5Comb5v Supply-70Vin/R2/PrScart 2 R-InIn
71Uin/B2/PbScart 2 B-InIn
72Yin/G2/YScart 2 G-InIn
73Y Sync Y SyncIn
74Y outYoutOut
75Uout/Fb inScart 2 Fast BlankingIn
76Vout/Sw01-77Fbl3Scart 1 Fast BlankingIn
78R3/PrScart 1 R-InIn
79G3/YScart 1 G-InIn
80B3/PbScart 1 B-InIn
81Gnd 3Gnd-82V5P35vSupply-83BCLBeam Current LimitingIn
84Iblack-85RoutRed Drive Out
86GoutGreen DriveOut
87BoutBlue DriveOut
88V3.3A13.3v Supply-89RefAdnRef Gnd-90V3.3RefAdp3.3v Supply-91RefAd-92GndAGnd-93V1.8A1.8v Supply-94V3.3A23.3v Supply-95VssAdcGnd-96V1.8Adc1.8v Supply-97IntoRemote control InIn
98P10/Int1SClIn/out
PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM
1. The parts specification of resistors, capacitors and
coils are expressed in designated code. Please
check the parts description by the following code
table.
2. Some of transistors and diodes are indicated in
mark for the substitution of parts name. Please
check the parts name by the following code table.
3. Voltages and waveforms were taken with a video
colour bar signal(1Vp-p at 75 ohms terminated) and
controls to normal.
4. Voltages were taken with a high-impedance digital
voltmetre.
Example 2000 K K 1000 BG
Characteristic
Example 160E M 10
Capacitance value
Tolerance
Type
Rated voltage
Excepting electric capacitors, all
capacitance values of less than 1
are expressed in µF and more
than 1 are in pF.
Example L2
C1 4R7 KN
Tolerance
Inductance value
Manufacture code
Unique code
AA 1S1555,1S2076,1S2473,1SS133,DS442,1SS176,1N4148,GMA01
● Diode
MarkType number
--2SC5362SC945A 2SC1815 2SC1740 2SC1740S KSC945C
AE, F, GP, Q, RO, Y, GQ, R, SQ, R, S
BE, F, GP, Q, RO, Y, GQ, R, S
DF, GP, QY, GQ, R, S
FF, GPGR, S
HF, GP, QY, GQ, R, SY, G
IE, F, GP, Q, RO, Y, GQ, R, SY, G
GF, GPGR, SG
ADF, GQ, RY, GRQ, R, S
AEE, F, GQ, RO, Y, GRQ, R, S
● Transistor (NPN type)
MarkType number
--2SA6082SA564A 2SA1015 2SA9332SA933S KSA733C
YE, FQ, RO, Y, GQ, R
WF R Y, GR
VE, FQ, RO, Y, GQ, RY, G
UFRY, GRG
ZE, FQ, RO, Y, GQ, RQ, R
Note: Parts order must contain Service Ref. No., Part No., and descriptions.
11
9
1
3
2
8
5
6
JXPLB
Page 57
C5VRL
-19-
CHASSIS ELECTRICAL PARTS LIST
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by a mark in this parts list and the circuit diagram show components whose value have
special significance to product safety. It is particularly recommended that only parts specified on the following
parts list be used for components replacement pointed out by the mark .