SANYO CE28DN8FC
Manual de Servicio

OPTION SETTING To select the mode service item and change data value
[After replacing the Memory IC (IC803)]
when the memory IC is replaced, it should be performed following setting and �SERVICE ADJUSTMENT� on next To change service data, use the -(LEFT) or Volume + (RIGHT) button. Note: Some items of service adjustments for this chassis are controlled by CPU, IC801, and the page. The memory IC, IC803, stores the option of TV set and service adjustments data for each circuit, therefore, SERVICE ADJUSTMENTS + To select adjustment item, use the or P button.

MAIN BOARD COMPONENT LOCATION

+ Highlight desired adjustment mode by using or P button and then press the F/OK button.

+ The data which set in service mode is stored into the memory IC automatically.

REGULAR IMAGE mode adjustments are carried out by using the RC handset.

To enter to Option Mode A1901A SW1901 SW1902 SW1903 SW1904 SW1905 SW1906 [After replacing the Memory IC (IC803)]
K1101 + Press and hold the F/OK button on the remote control and P button on the front panel of the TV. The option The memory IC, IC803, stores the service adjustments data for each circuit, therefore, when the memory IC is

L601 K1921 window will appear on the screen.
OPTION
SW691 ON-TIMER ON C601

replaced, it should be programmed by using �OPTION SETTING� on previous page and the following adjustments.

ADJUSTABLE SERVICE ADJUSTMENT

RL691

IC801
SORT MODE SORTING REGULAR P&P ON REGULAR IMAGE COMB FILTER OFF 1, AGC 38 1. P V-P 1F BBE OFF 1 AGC AGC Adjustment AUTO VOLUME OFF HEADPHONE OFF No. Adjustment Data 2 -Cut-Off Drive Adjustment COUNTRY BG/DK/I/LL' WIDE OFF and Item name and Item name

IC803 WEL. TEXT ON Item No. OSD Description IC642
No. Adjustment Data
5 CTR Contrast Adjustment (use setting)(for factory use)

3 GRY G-Drive Adjustment (white balance)

PS601 AV3 OFF 4 GRY B-Drive Adjustment (white balance)
/ A,B CS

IC641 6 -Screen Adjustment mode IC643 ADJUST EXIT : RECALL Exit from the Service Mode IC001 OPTION MODE FOR CE28DN8F-C-00 IC3451 + Highlight desired option item by using the or P button . Item No. OSD Description
To switch option mode, use the (LEFT) or Volume + (RIGHT) button.

+ Press RECALL ? button or turn off TV set by using the Mains switch. IMAGE R602

F601 8 OSD Positioning Adjustment

INITIALISATION OF MEMORY IC C607 VR641 To set the option mode
2 H-P P Horizontal Position Adjustment P button on front panel of TV set then turn the Mains switch Off and On. The initialisation is now + The data which set in option mode is stored into the memory IC automatically. 3 V-L P Vertical Linearity Adjustment completed. 6 H-S P Horizontal Size Adjustment 7 E-P P Pin Cushion Adjustment

TP-B
When initialised the memory IC and all of the setting data (option data and service adjustment data) stored in the IC Following table shows the available option items and default setting mode.

To initialise memory IC (IC803), and hold NORMAL button on the remote control, then press 1 V-C P Vertical Position Adjustment (not used on 4:3 models)

Q613 T611
TUNING 11 P ECT P Top Corner Correction Adjustment 12 ECB P Bottom Corner Correction Adjustment 13 HPA P Parallelogram Distortion Adjustment

4 VSC P Vertical S-Correction Adjustment are reset default value. It is necessary to set option settings and readjust the service adjustments listed on Option Mode Description & Note 5 V-A P Vertical Size Adjustment

ON-TIMER ON or OFF On-timer available, default �ON� page 6 and to re-tune all the channels. SORT MODE SORTING or Tuning mode, default �SORTING� 8 E-T P Trapezoid Distortion Adjustment P ON or OFF Plug & Play mode, default �ON� WEL. TEXT ON or OFF Display message when first set up, default �ON� 14 H-B P Horizontal Bow

IC501 COMB FILTER OFF or ON For factory use, default �OFF� 15 VPH P Vertical Phase Adjustment (4:3Vertical Adjustment) KP ON or OFF BBE sound mode, default �OFF� IC201
AUTO VOLUME ON or OFF Default �OFF� HEADPHONE ON or OFF Headphone control , default �OFF� IMPORTANT NOTICE COUNTRY UK, IRE TV system, default �UK� Do attempt to adjust service adjustments not listed on the above otherwise it may cause BG/DK I / LL Q432 loss of performance and product safety. WIDE ON or OFF Wide mode, default ON

T131 X131 X132 CS/A,B CS or A/B Function of �CS� Remote control button + hold GREEN on remote control and then press P button inside of the door. Press T451 IC1401
select the mode. ON or OFF AV3 Contol To enter to the Service Mode

SW501 T431
Exit from the Service Mode IC1201

the P button to highlight the mode required (Regular, Image, others and TB12**). Then press the F/OK button to

The available adjustment items are as follows;

TP-A Image : This can be adjusted for picture images/shapes. A101
+ Press the RECALL ? button. other : This is for factory setting. DO NOT ADJUST.

Regular : This can be adjusted for the service adjustment. TB1251 : This is for the factory setting. DO NOT ADJUST. L462 K1002 K1001

KCPA
ADJUSTMENTS CORNER ADJUSTMENT VERTICAL ADJUSTMENT IMPORTANT NOTICE
Do ner adjustment OR item no. 12 �IMAGE 12.P ECB for 2. Enter to the service and select mode �IMAGE�, not attempt to adjust the following service except when adjustments are required in servicing otherwise it may cause loss of performance and product safety. + B VOLTAGE ADJUSTMENT distortion of line around the corners. vertical centre. DRIVE ADJUSTMENT 6. Select item no.3 �REGULAR 3, GRY� (G-Drive) or 4 3. correct .3 Press LEVEL+ or LEVEL button to adjust the 1. Receive cross hatch pattern and set screen mode to �FULL�. VERTICAL CENTRING ADJUSTMENT 2. Enter the service select �IMAGE�, 1. Receive circular pattern and set screen mode to

EB7-B BLOCK DIAGRAM (OUTLINE)
and select item no. 11 �IMAGE 11.P ECT� for top cor�FULL�. bottom corner adjustment. and select item no. 15 �IMAGE15.P VPH�. VERTICAL HEIGHT ADJUSTMENT

IC3451 1. Receive white raster pattern. �REGULAR 4, GRY� (B-Drive) and adjust both initially AERIAL
SPEAKER 8/10 1 5 60 61 2. Set controls normal. to 40. SP902 A1901 5 4 12 1. Receive circular pattern and set screen mode to STEREO SP901 IC001 RC RECEIVER IC801 A101 HORIZONTAL CENTRING ADJUSTMENT �FULL�.

3. Connect digital voltmetre to test point TP-B and GND. 7. Change data value of each item by using LEVEL + or 4. Adjust voltage 150 ±0.5V by using VR641. LEVEL button to obtain the proper white balance.

HORIZONTAL ADJUSTMENT

NICAM/

AUDIO-OUT CPU TUNER 1. Receive circular pattern and set screen mode to 2. Enter to the service mode and select mode �IMAGE�,
RC-IN SIF-OUT 3. Press LEVEL+ or LEVEL button to adjust the IF-IN

KEY SW
1. Input and tune an RF signal which is UHF to the clear�FULL�.
BLK HORIZONTAL WIDTH ADJUSTMENT 75 X131 est station. SDA 27 2. Enter to the service and select mode �IMAGE�, 76 2. Connect digital voltmetre to test point TP-A and GND. and select item no. 7 �IMAGE 7.P E-P�. SIF-IN horizontal centre. KEY-IN 79 8 SCL 26 3. Press LEVEL+ or LEVEL button to adjust the
SDA SCL

SDA

and select item no. 5 �IMAGE 5.P V-A.
SCL

IF PCC ADJUSTMENT �FULL�. 45 1. Receive cross hatch pattern and set screen mode to 1 MUTE 80 AGC ADJUSTMENT and select item no. 2 �IMAGE 2.P H-P�. vertical height. 71 PCC ADJUSTMENT

<TDA7263M> 2. Enter to the service and select mode �IMAGE�, X132

18 20 2 4. Enter to the service mode and select mode 3. Press the LEVEL+ or LEVEL button to adjust the I C BUS 1. Receive circular pattern and set screen mode to 19 CONTROL 17 21 �FULL�. R

IC201 IF/VIDEO/CHROMA/DEF <TB1251>
IC1201 �REGULAR�, and select item no.1 �REGULAR 1, vertical line to be straight.

SDA

51/53 IC642 9V R M-OUT �REGULAR�, and select item no. �REGULAR 8 12 57 trapezum distortion of the vertical line. 1. Receive black & white pattern. 14 55 7/11/15 CUT�. The horizontal line will appear on the screen. HIGH-VOLTAGE CONFIRMATION B 2/5/12 3. Press the LEVEL+ or LEVEL button to adjust prop-

POWER

CHASSIS SERIES 5. All inductance values are in µH. � Transistor 2SC536(Q,R,S), show components whose values
9 C 10

wide band oscilloscope and a low capacity probe. unless otherwise noted. Kind (M.carbon)

K1001 SCART SC1
SDA B 16 22 9 1 8 6 and select item 6 �IMAGE 6.P H-S�. 5. Press the LEVEL+ or LEVEL button to adjust voltG 2. Enter to the service and select mode �IMAGE�, H-BLANK horizontal width.

AGC�. SCL AV-VIDEO-SW <LA7954>

MEMORY

19 54 20 IC803 15 23 Video-Out Video-IN 3. Press LEVEL+ or LEVEL button to adjust the

age to be 3.2Vdc.

SCL 48 11/7/15

20 4 R/G/B-IN

Video/Y-Out

34 FOCUS ADJUSTMENT 33 46 C-IN V-OUT Y-IN 1. Receive circular pattern and set screen mode to

15

Q666 33 By using FOCUS VR, adjust focus control for well 5V 21 EW-OUT

TRAPEZOID ADJUSTMENT

53 defined scanning lines.

11

PROTECT �FULL�. D441 Y-IN

54 58 20

47 C-IN 1. Receive cross hatch pattern and set screen mode to OSD POSITIONING ADJUSTMENT Video/

K1002 SCART SC2
D646 39 and select item no. 8 �IMAGE 8.P E-T�. D641 SCREEN ADJUSTMENT 3. Press LEVEL+ or LEVEL button to correct the 2. Enter to the service and select mode IC641 5V H-OUT C-OUT GREY SCALE ADJUSTMENT 2. Enter to the service and select mode �IMAGE�,

�FULL�.

61

Q462 19 T611

D647 Q461 D603-D606 R/G/B-IN CONTROL 15 18 IC1401 11 decrease resets the adjustment to maximum value. �������������������� 6 L462 3. Connect high-voltage meter to the anode of CRT and R/G/B-OUT BIAS ADJUSTMENT Q613 L461 <TC4053BF> 2. Set controls for brightness and contrast to maximum. IC643 5V-1 4 1/3/13 �REGULAR�, and select item no. 2 �REGULAR 2, screen.

Q661 OSD�. The OSD test bar will appear on the top of SCREEN 13 WIDTH G C-IN 2. Enter to the service and select mode

CONVERTER
15 13 56 12 15 5 14 D637 1. Receive circular pattern and set screen mode to 8 SW901 C607 er OSD positioning.

R

3. Set the SCREEN VR for one colour to be just visible.
25V �FULL�. 4. Using the numeric buttons shown set each colour to

minimum by decreasing to the point where any further

RGB-SW
Q651 27V

5. By using the buttons 1, 2, 4, 5, 7, 8 on the remote
2 Q682 control, adjust the line to be white. 14 V-OUTPUT 4. Confirm that voltage is 26kV±1.0kV for 28/25� models. Q611 Q701 B 3 Q641 CRT H-OUTPUT PICTURE 12 Q711 R Q642 Q431 Button No. Operation Q643 Q686 Reg. Q685 HEATER Q721 G TUBE 10 145V The key allocation is as follows; T451 FLYBACK

IC501 3 GND.

<LA7846>

13 Q432

1 Increase Red AC 2 Decrease Red 4 Increase Green

D615 5 Decrease Green H.V -27V

D.Y 7 Increase Blue Q645 200V

FOCUS/SCREEN 8 Decrease Blue

Expression of capacitance and resistance in circuit diagram.
1 B
B C E A

Circuit diagram notes : 8. This circuit diagram covers a basic 1. All resistance values are in ohms, K=1,000, M=1,000,000. or representative chassis only. There

COLOUR TELEVISION

Product may be some components or partial safety notice:

ered when a component replaceCapacitance (Example)
N

noted. circuit differences between the actual N/2 + 1 Product safety should be considE C

2. All resistance rated wattages are 1/6W unless otherwise Terminal guide ment 9.� Diode 1S1555 may be replaced with K= ± 10% is made in any area of a 1000 C M 2000 D
Characteristic Capacitance value (220pF) Tolerance (±20%)
B 7

N/2

J= ± 5%

3. Excepting electrolytic capacitors, all capacitance values of chassis and the circuit diagram. receiver. Components indicated The service Precaution:
A
E C

K

less expressed in µF and more than 1 are pF.

The area enclosed by this line otherwise noted. by a mark /!\ in this circuit diagram
E

K

4. All capacitance rated voltages are 50V otherwise 1S2473,1S2076 or DS472 unless

M= ± 20%

2

Rated voltage (1,000V) 6. Voltage readings taken a digital voltmeter are from point 2SC1740(Q,R,S), 2SC945A(Q,R,P)
M, N : Polypropylene

4

with AC mains voltage. When
MODEL isolating transformer between Some voltages may vary with signal strength. � Transistor 2SA608(E,F) may E : Emitter NUMBER the part service manual be used for
1/2 N J 1.2

2

have special significance to product safety. It is particularly recomResistance (Example) mended that only parts specified on
F : Mylar film

6

C, K, B : Ceramic 1 1

EB7-B EB7-B
7. Waveforms were taken colour bar and controls adjustbe replaced with 2SA933(Q,R), Chip Components
Tolerance (±5%) Transistor Resistor
123

noted.

A

K

connecteddirectlyis)( Electrolytic:DU,A,T,Kind(Ceramic)

5

33

C Collector A : Anode

TV receiver and AC line to elimiResistance value (1.2�)

components replacement pointed out by the mark.

CE28DN8F-C
nate hazard of electric shock.
C N : Metallized carbon
K

servicing the area, connect an

indicated chassis ground. Voltage readings taken by using or 2SC1815(G,O,Y) unless other-

Z : Metallized paper a colour bar signal are with all controls at normal position. wise noted. B Base K : Kathode

ed for normal picture. Waveforms were taken by using a 2SA564(QA,RA), or 2SA1015(O,Y) D : Carbon Diode

CE28DN8F-C-00

Rated wattage(1/2W) W : Wire wounding

SERVICE REF.NO.

12 x 10 = 12k S : Oxide metallized

3

C : Solid

Part No. SKP20394 C6WZL (SHEET 1-2 )

B E A