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TV-C1400

KY EZY KHY

POWER

C1400

TEXT

SERVICE MANUAL
COLOR TELEVISION

SIMPLE-2
A par t of contents is adequate. Re-issuing is under r equest.

S/M Code No. 09-009-352-0N1

DA TA

NOTICES BEFORE REPAIRING

To make the best use of this equipment, make sure to obey the following items when repairing (or mending).
1. Do not damage or melt the tunicate of the leading wire on the AC1 side, including the power supply cord. 2. Do not soil or stain the letters on the spec. inscription plates, notice labels, fuse labels, etc. 3. When repairing the part extracted from the conducted side of the board pattern, fix it firmly with applying bond to the pattern and the part. 4. Restore the following items after repairing. 1) Conditions of soldering of the wires (especially, the distance on the AC1 side). 2) Conditions of wiring, bundling of wires, etc. 3) Types of the wries. 4) Attachment conditions of all types of the insulation. 5. After repairing, always measure the insulation resistance and perform the voltage-withstand test (See Fig-1). 1) The insulation resistance must be 7.3 M to 10.1 M when applying 500V per second. 2) In the voltage withstand test, apply 3.0 kV for 1 minute and check that the GO lamp lights. * * * * Breaking current set to 10 mA. Connect the safety checker as shown in Fig-1, then measure the resistance and perform the test. Do not touch the equipment during testing. For details of the safety checker, refer to the supplied Operation manual. Insulation resistance: 7.3 M to 10.1 M(500 V/s) Voltage-withstand: 3.0 kV for 1 minute

Safety checker (Model 7110, etc.)

Earth cable

AC cable

Connect the earth cable to the outside metal part terminal.

Fig-1

When servicing and checking on the TV, note the followings.
1. Keep the notices As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual. 2. Avoid an electric shock. There is a high voltage part inside. Avoid an electric shock while the electric current is flowing. 3. Use the designated parts. The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety. Therefore, the part which is replaced should be used the part which has the same character. Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a ! mark, the designated parts must be used. 4. Put parts and wires in the original position after assembling or wiring. There are parts which use the insulation material such as a tube or tape for safety, or which are assembled so that these parts do not contact with the printed board. The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts. Therefore, put these parts in the original positions. 5. Take care of the cathode-ray tube. By setting an explosion-proof cathode-ray tube is set in this equipment, safety is secured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock. Take enough care to deal with it. 6. Avoid an X-ray. Safety is secured against an X-ray by considering about the cathode-ray tube and the high voltage peripheral circuit, etc. Therefore, when repairing the high voltage peripheral circuit, use the designated parts and do not change the circuit. Repairing except indicates causes rising of high voltage, and the cathode-ray tube emits an X-ray. 7. Perform a safety check after servicing. Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the places serviced.

! Safety Components Symbol
This symbol is given to important parts which serve to maintain the safety of the product, and which are made to confirm to special Safety Specifications. Therefore, when replacing a component with this symbol make absolutely sure that you use a designated part.

-2-

SPECIFICATIONS
Tuner system Picture tube TV system Channel coverage Frequency synthesized tuner 14 in. (34 cm "V"), 90 degree deflection PAL (B/G, D/K, I), SECAM (D/K, L) VHF: E2-E12 UHF: E21-E69 CABLE: S1-S41 75 ohms, unbalanced 1.0 Vp-p, 75 ohms, unbalanced 1.0 Vp-p, 75 ohms, unbalanced -3.8 dBs, 50 kohm -3.8 dBs less than 1 kohm 5°C to 40°C 220-240 V AC, 50 Hz 58 watts 2 watts 364(W) x 315(H) x 364(D) mm (143/8 x 121/2 x 143/8 in.) Approx. 10.5 kg (23.1 lbs.)

Antenna input Video input Video output Audio input Audio output Operating temperature Power requirements Power consumption Standby Dimensions Weight

· Design and specifications are subject to change without notice.

ACCESSORIES LIST

REF. NO 1 1 1 2

PART NO.

KANRI NO.

DESCRIPTION

8A-JB8-901-010 8A-JB8-903-010 8A-JB8-904-010 8A-JB4-610-010

IB,K (E) -C1400 IB,EZ (EGDSI) IB,KH (E/R/CZ/PO) -C1400 RC UNIT,RC-AVT02

-3-

DISASSEMBLY INSTRUCTIONS
1. REAR CABINET REMOVAL
(1) Remove eight screws 1, then remove the rear cabinet in the direction of the arrow. (See Figure1-1)
Front cabinet

Rear cabinet

Figure 1-1

2. HIGH-VOLTAGE CAP (ANODE CAP) REMOVAL 2-1. Cautions before Removing
Discharge the anode voltage (1) The anode voltage is not discharged completely from the CRT of this unit even after the power is turned off. Be sure to discharge the residual anode voltage before removing the anode cap. Do not use pliers (2) Do not use pliers, etc. to remove the anode cap. If you used pliers and bent the hook to remove the cap, the spring characteristics of the hook could be lost, and when reinstalled, the cap would come off from the CRT anode button easily, causing an accident. Do not turn the anode cap (3) If the anode cap is turned in the direction of its circumference, the hook is likely to come off.
Grip Hook CRT CRT GND Anode cap

CRT GND

Figure 2-1

2-2. Anode Cap Removal
(1) (2) (3) (4) Discharge the anode voltage. (See Figure 2-1) Connect a flat-bladed screwdriver to the CRT GND via an alligator clip. Use a tester to check the end of the screwdriver and ground of the TV for continuity. Touch the hook with the end of the screwdriver. Caution : Be careful not to damage the anode cap. Turn over the anode cap. Caution : Be careful not to damage the anode cap.
Anode cap

CRT Hook

Anode button

Figure 2-2

-4-

(5)

Push the anode cap with your thumb in the direction of arrow 1 as shown in the figure, then lift the cap in the direction of arrow 2 to release the hook on one side. (See Figure 2-3)
Anode cap

CRT

Hook

CRT Hook

Figure 2-3 (6) Turn over the anode cap on the side where the hook was released and pull out the cap in the direction opposite to that on which the cap was pushed. (See Figure 2-4) Caution : Do not pull out the anode cap straight up. : Do not pull the cap forcibly. After removing the cap, check that the hook is not deformed.

Anode cap

CRT Anode button Hook

Figure 2-4

3. ANODE CAP REINSTALLTION
Observe the cautions carefully so that no accident occurs due to a defect in installing the anode cap and so it does not come off.
Left

Anode cap

Right

3-1. Caution before Reinstalling
Never turn the anode cap after installing it Never re-use the hook when it has been deformed (1) If the anode cap is turned after it is installed, it may come off. Therefore, arrange the high-voltage cable before attaching the anode cap. (See Figure 3-1) If you have attached the anode cap before arranging the high-voltage cable, arrange the cable carefully so the cap does not turn. Figure 3-1

(2)

3-2. Anode cap reinstallation
(1) Use a clean cloth moistened slightly with alcohol to clean the installation section. (See Figure 3-2) Caution : Check that the installation section is free from dust, foreign matter, etc. Coat the anode cap installation circumference with an appropriate amount of the specified silicone grease (KS650N). Caution : Be careful that silicone grease does not enter the anode button.
Anode button

(2)

Installation section

-5-

Figure 3-2

(3)

Eliminate twisting, etc. of the high-voltage cable and arrange it so that no twisting occurs. (See Figure 3-3) Caution : If the cable is not arranged correctly, the anode cap could turn and cause an installation defect.

High-voltage cable

Anode cap

Figure 3-3

(4)

Turn over the rubber cap symmetrically on the left and right. (See Figure 3-4) Caution : Take great care not to damage the anode cap.

Figure 3-4

(5)

Fit your forefinger over the projection at the center of the cap and hold the cap between your thumb and middle finger. (See Figure 3-5)

Figure 3-5

-6-

(6)

(7)

Apply the hook on one side to the anode button as shown on the figure. (See Figure 3-6) Caution : Check that the hook is held securely. Apply the hook on the other side to the anode button as shown in Figure 3-7.

Hook

Anode button

Hook

Anode button

30°

Figure 3-6
Anode button

Hook

Figure 3-7

Pull the anode cap slightly with the rubber cap turned over and visually check that the hook is engaged securely. (9) Release your hand from the rubber cap of the anode cap. Caution : Cover the anode cap so that it does not lift. (10) Hold the skirt of the andoe cap slightly to improve the close contact between the cap and CRT. (11) Check that the anode cap is in close contact with the CRT. (See Figure 3-8)

(8)

Anode button

Skirt

Figure 3-8

-7-

4. NECK C.B. REMOVAL
(1) Remove the NECK C.B. in the direction of arrow 1 (See Figure 4-2).
Front Cabinet

5. MAIN C.B REMOVAL
(1) Remove connector (P601). (2) Remove connector (P801). (3) Remove connector (P802). (4) Remove connector (P401). (5) Pull out the MAIN C.B. in the direction of the arrow 2 (See Figure 4-2).

NECK C.B

P802 (Degauss Cord)

P601 (Speakers

P801 (Power Cord)

P401 Main C.B

-8-

ELECTRICAL MAIN PARTS LIST

REF. NO IC

PART NO.

KANRI NO.

DESCRIPTION

REF. NO C523 C524 C601 C602 C606 C611 C620 C702 C703 C704 C706 C801 C803 C804 C805 C807 C809 C812 C814 C815 C818 C819 C820 C822 C825 C826 C827 C828 C829 C830 C842 C850 D706 !F801 JS02 L101 L301 L511 L601 L602 L604 L701 L702 L800 !L801 L802 L803 L805 L806 P101 P401 P601 !P801 P802 P601A R302 R303 R307 R308 R309 R310 R402 !R403 R410 R503 !R801 R802 R808 R819 R850

SI-AL2-416-00B S1-DW1-95D-E2Q S1-KA7-805-000 S1-KRT-300-000 S1-STV-223-8DQ ! S4-850-M04-710 S1-STV-813-100 87-JB1-605-010 S1-TDA-610-3Q0 S1-TDA-726-7A0

IC,AT24C16-10PC C-IC,DW92195B7T-DE2 IC,KA7805 IC,KRT30 C-IC,STV2238D MODULE POWER DPM001T1A IC,STV8131 IC,TDA1771 IC,TDA6103Q IC,TDA7267A

KANRI NO. 87-015-695-010 CAP,E 87-015-695-010 CAP,E 87-010-553-080 CAP,E 87-010-544-080 CAP,E 87-016-126-080 CAP,E 87-010-553-080 87-010-405-040 87-015-695-010 87-010-553-080 87-010-237-910 87-015-694-080 SC-L1S-C34-74M SC-CXF-3A4-72Z SC-CXF-3A4-72Z 87-A10-003-090 SC-MYU-3C2-22J 87-A12-170-010 87-A12-170-010 SC-CYR-3A4-71K 87-016-249-090 87-016-249-090 87-016-299-080 87-A10-493-080 87-010-112-040 87-016-638-080 87-010-408-040 87-010-285-010 87-010-112-040 87-010-405-040 87-016-126-080 87-016-515-080 87-010-553-080 SD-LH2-PR0-000 S5-FSC-B40-22R S4-859-109-950 S5-8N0-000-044 S5-CPZ-100-K04 S5-CPZ-100-K02 S5-CPZ-109-M02 S5-CPZ-109-M02 S5-CPZ-109-M02 S5-CPZ-100-K02 S5-CPZ-569-K02 S5-8Q0-000-093 S5-PLF-24A-300 S5-MC0-000-100 S5-MC0-000-100 S5-8C4-500-079 S5-CPZ-390-K04 S4-859-231-620 S4-859-240-020 S4-859-231-620 S4-859-287-320 S4-859-242-220 S4-850-703-S50 87-022-576-010 87-022-642-090 SR-N02-B18-1JS SR-N02-B18-1JS SR-N02-B18-1JS SR-N02-B18-1JS 87-025-590-060 SR-S02-Y43-9JS SR-N02-B13-2JS SR-N01-B30-0JS SD-EC1-40M-290 SR-X07-C33-9JF SR-S02-Y82-8JS SR-S02-Y27-8JS 87-A00-618-090 CAP,E CAP,E CAP,E CAP,E CAP,E

PART NO.

DESCRIPTION 1MF-50V 1MF-50V 47MF-16V 0.1MF-50V 470MF-16V 47MF-16V 10MF-50V 1MF-50V 47MF-16V 1000MF-16V

TRANSISTOR 87-A30-492-080 ST-KTC-320-700 87-A30-050-010 ST-R33-300-9DB ST-2SK-267-100 ST-KSA-101-3Y0 DIODE 87-A40-246-080 SD-1SS-85T-A00 SD-UZ3-3B0-000 SD-TZX-5V1-B00 SD-BYW-360-000 SD-BY2-280-000 SD-TZX-5V6-B00 SD-UZ3-R9B-000 SD-BYW-760-000 SD-BYW-340-000 SD-R2M-000-000 SD-LT2-A05-G00 MAIN C.B C101 C102 C103 C301 C302 C303 C304 C306 C313 C401 C402 C404 C406 C411 C420 C421 C501 C502 C503 C504 C506 C507 C511 C512 C513 C514 C515 C516 C517 C520 C522 87-015-695-010 87-010-408-040 87-010-285-010 87-016-593-080 SC-CXB-3A4-71K 87-A10-493-080 87-016-638-080 87-010-393-010 87-015-695-010 SC-MYE-2D3-64J S0-E7T-B01-0M0 SC-MYT-3C6-92J 87-010-976-010 SC-MYN-1J1-05K 87-010-553-080 87-010-545-080 87-015-694-080 87-015-695-010 87-010-553-080 87-015-696-080 87-015-696-080 87-010-112-040 87-010-553-080 87-015-695-010 87-010-405-040 87-015-695-010 87-015-695-010 87-015-695-010 87-015-695-010 87-010-553-080 87-010-553-080 CAP,E 1MF-50V CAP,E 4.7MF-50V CAP,E 2200MF-16V CAP,E 470MF-35V CAP,CER 4700PF-1KV CAP,E CAP,E CAP,E CAP,E CAP,M 1000MF-25V 22MF-50V 100MF-35V 1MF-50V 0.36MF-200V DIODE,1N4148 DIODE,1SS85TA ZENER,UZ-33B ZENER,TZX5V1B DIODE,BYW36 DIODE,BY228 ZENER,TZX5V6B ZENER,UZ-3.9B DIODE,BYW76 DIODE,BYW34 ZENER,R2M DIODE,LT2A05G TR,2SC5343Y TR,KTC3207 TR,2SD2499 TR,STA933-Y TR,2SK2671 TR,KSA1013Y

CAP,E 0.47MF-50V CAP,0.47MF-275V CAP,CER 4700PF-1KV CAP,CER 4700PF-1KV CAP,E 100MF-400V CAP,M 2200PF-1.6KV CAP,CER 1000PF-4.0KV CAP,CER 1000PF-4.0KV CAP,CER 470PF-1KV CAP,E 100MF-160V CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E 100MF-160V 10MF-100V 1000MF-25V 100MF-16V 22MF-50V 4.7MF-50V 2200MF-16V 100MF-16V 10MF-50V 470MF-16V

!

CAP,CER 1000PF-1KV CAP,E 47MF-16V LED BLOCK LH-2P-R FUSE CERA 4A 250V JACK PIN BOARD PH-JB-9710A COIL COIL COIL COIL COIL VCO TRF-V010 PEAKING 10UH 10.5MM PEAKING 10UH 3.5MM PEAKING 1UH 3.5MM PEAKING 1UH 3.5MM

COIL PEAKING 1UH 3.5MM COIL PEAKING 10UH 3.5MM COIL PEAKING 5.6UH 3.5MM COIL DELAY LINE RS208 FILTER LINE LF-24A3 COIL COIL COIL COIL CONN CONN CONN CONN CONN CONN BEAD MD-5 BEAD MD-5 CHOKE L-45 PEAKING 39UH 10.5MM WAFER YW025-03 WAFER YFW500-05 WAFER YW025-03 WAFER MKS2822 WAFER YFW800-02 AS YH025 METAL METAL METAL METAL METAL 2.2-2W 270-2W 180-2W 180-2W 180-2W

CAP,E 1MF-160V CAP,M 6900PF-1.6KV CAP,CER 1000PF-500V CAP,M 1MF-63V CAP,E 47MF-16V CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E CAP,E 33MF-250V 0.47MF-50V 1MF-50V 47MF-16V 2.2MF-50V 2.2MF-50V 100MF-16V 47MF-16V 1MF-50V 10MF-50V 1MF-50V 1MF-50V 1MF-50V 1MF-50V 47MF-16V

RES,R RES,R RES,R RES,R RES,R

RES,R METAL 180-2W RES,R M-OXIDE 15K-2W RES,R M-OXIDE 4.3-2W RES,METAL 1.3K-2W RES,METAL 30-1W POSISTOR ECPCC140M290 RES,CEM 3.3-7W RES,R M-OXIDE 0.82-2W RES,R M-OXIDE 0.27-2W RES,METAL 18-2W

CAP,E 47MF-16V

-9-

REF. NO !RLY1 SF101 SF102 SJ01 SW701 SW702 SW703 SW704 SW705 !SW801 T401 !T402 !T801 U101 W101

KANRI DESCRIPTION NO. S5-SC0-101-338 SW RELAY DQ5D1-O(M) S5-PG3-962-M00 FILTER SAW G 3962-M S5-PK9-650-M00 FILTER SAW K9650M S4-859-200-401 SOCKET RGB S5-S50-101-Z90 SW TACT SKHV10910A S5-S50-101-Z90 S5-S50-101-Z90 S5-S50-101-Z90 S5-S50-101-Z90 S5-S40-101-146 S5-0D1-0A3-000 S5-0H0-000-202 S5-0M4-042-A50 S4-859-719-930 S4-851-900-130 SW SW SW SW SW TACT SKHV10910A TACT SKHV10910A TACT SKHV10910A TACT SKHV10910A POWER PUSH SS-160-7-B

PART NO.

REF. NO X501 X502 X701 !Z801 ZZ100 ZZ131 NECK C.B C902 C905 C906 P901 !SCT1

KANRI DESCRIPTION NO. S5-XE4-R43-36B X'TAL,4.433619MHZ 15PP S5-XE3-R57-95B X'TAL,3.579545MHZ S5-XE4-R00-00C X'TAL,4.000000MHZ 20PP SD-SVC-471-D14 VARISTOR,SVC471D14A S4-8B4-544-A01 TRANSMITTER REMOCON R-44A01 S5-8G0-000-084 COIL DEGAUSSING DC-1450

PART NO.

TRANS DRIVE TD-10A3 FBT FUY20C001 TRANS SMPS TSM-4042A5 TUNER VARACTOR DT5-BF18D GROUND TUNER AS DS-W1015-S

87-016-082-010 87-016-082-010 87-012-397-090 S4-850-709-N02 S4-859-303-430

CAP,M 0.1MF-250V CAP,M 0.1MF-250V CAP,CER 1000PF-2KV CONNECTOR YBNH250 SOCKET CRT PCS633A

CHIP RESISTOR PART CODE

Chip Resistor Part Coding

8 8
A
Resistor Code Value of resistor Chip resistor
Dimensions (mm)

Figure

Wattage 1/16W 1/16W 1/10W 1/8W

Type 1005 1608 2125 3216

Tolerance 5% 5% 5% 5%

Symbol CJ CJ CJ CJ

Form
L W

L 1.0
t

W 0.5 0.8 1.25 1.6

t 0.35 0.45 0.45 0.55

:A Resistor Code : A
104 108 118 128

1.6 2 3.2

TRANSISTOR ILLUSTRATIONS

ECB 2SC5343 STA933

BEC KSA1013

ECB KTC3207

BCE 2SD2499

GDS 2SK2671

-10-

SCHEMATIC DIAGRAM -1 (MAIN C.B-1/5)

MAIN C. B 1/5 (CONTROL SECTION)
GND A2 A1 A0

AT24C16-10PC
SDA SCL WP VCC SW701 SW702 SW703 P SW705 TV/AV MENU SW704

A
2SC5343Y

B
2SC5343Y

C
SDA SCL

To MAIN C.B -4/5 To MAIN C.B -5/5

D 3 14 15

To MAIN C.B -2/5

1

REMOTE SENSOR

DW92195B7T-DE2 2SC5343Y

2 4 To MAIN C.B -2/5
SCL SDA UZ-3.9B

2SC5343Y STA933-Y

SDA

SCL

10 11 18

G 3/5

D/G SW

F

22 2/5

13

E 3/5

-11-

SCHEMATIC DIAGRAM -2 (MAIN C.B-2/5)
To MAIN C.B -4/5 21 20 19 1/5 18 17
VIDEO

5/5 16
AUDIO

To MAIN C.B -1/5 15 14

MAIN C. B -2/5 (TUNER/VIDEO, AUDIO PROCESS SECTION)

G

R

B

TZX5V6B

2SC5343Y
TZX5V6B

1

2
To MAIN C.B -1/5

TZX5V6B

3 4

TZX5V6B

TZX5V6B

2SC5343Y

TZX5V6B

2SC5343Y

1

TZX5V1B

22 1/5
2SC5343Y

UZ-33B

5

6

7

8

9

10 11 1/5

12 5/5

13 1/5

To MAIN C.B -4/5

-12-

SCHEMATIC DIAGRAM -3 (MAIN C.B-3/5)

MAIN C. B -3/5 (POWER SECTION)

D/G SW KTC5343Y OCP

G To MAIN C.B -1/5

F

POWER UZ-3.9B

E

BEAD MD5 BYW76

BYW34

BEAD MD5 D BYW34

G S BYW34 ZZ131

Z801 SVC471D14A

P/CORD 220-240V AC 50Hz

-13-

SCHEMATIC DIAGRAM -4 (MAIN C.B-4/5)

MAIN C. B -4/5 (FLYBACK TRANS/DEFLECTION SECTION)
19 To MAIN C.B 20 -2/5 21
B G R

STA933-Y

To NECK C.B P901

8V(1)

BYW36

BYW36

BYW36

To MAIN C.B -1/5 C To MAIN C.B -2/5 5
13.3V

To MAIN C.B -1/5 A
HV

7 8 To MAIN C.B -2/5
2W

a

BY228 BYW36 FOCUS

To NECK C.B b c

SCREEN

9 To MAIN C.B -1/5 B
TZX5V1B

To MAIN C.B -2/5 6

STA933-Y

-14-

SCHEMATIC DIAGRAM -5 (MAIN C.B-5/5)

MAIN C. B -5/5 (AUDIO AMP SECTION)

To MAIN C.B -2/5

16

AUDIO

17

VIDEO TZX5V1B

EAR.

SW 160HM

2SC5343Y

To MAIN C.B D -1/5

A.MUTE

STA933-Y

To MAIN C.B 12 -5/5

A.OUT

-15-

WIRING - 1 (MAIN C.B)
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A
(SPEAKER)

MAIN C. B

B
BLU BLK

C

EAR. ANT A AV V

D

E

F

G
AV

9 8

16 1

H

TV/AV MENU

I

J

K
P
BLK BLK BLK BLK BLK BLK BLK BLU B G R DC GND HT GND 200V

L

M

To NECK C.B P901

N

O
DY UNIT

6 I704

P

REMOCON SENSOR

Q

R

S
DEGAUSSING COIL POWER
GRY BLK BRN BLU RED

To V901 (CRT) ANODE To NECK C.B

T

U

220-240V AC 50Hz

-16-

SCHEMATIC DIAGRAM -6 (NECK C.B)

NECK C. B
SCREEN FOCUS HV

c b a To MAIN C.B -4/5

To MAIN C.B -4/5 P901A

-17-

WIRING - 2 (NECK C.B)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A

B

C

NECK C. B

GRY

To MAIN C.B T402(FBT)

D

E

F

1
BLK

To MAIN C.B T402(FBT)

G

H

I
P901

J
BLU BLK BLK BLK BLK BLK BLK BLK

K

G

B

GND

HT

R

GND

DC

200V

To MAIN C.B P901A

L

M

N

O

P

Q

R

S

T

U

-18-

WAVEFORMS

-19-

IC DESCRIPTION
IC, DW92195B7T-DE2
Pin No. 1,32,34,35,48 2 3,5,6,8,16, 17,18,24,26, 33,47,53,59 4 7 9 10 11 12 13 14 15 19 20 21,27,37 22,49,64 23 25 28 29 30 31 36 38 39 40,41,46 42 43 44 45 50 51 52 54 55 56 57 58 60 61 62 63 Pin Name GND AFT NC BUS STOP SAW SW OSD B OSD G OSD R OSD FB SDA SCL VDD WSCF WSCR AVDD3,2,1 VDD MCFM TXCF VDD CVBS2 CVBS1 AGND PXFM HSYNC VSYNC NC AMUTE HALF TONE SCREEN D/Q SW OSC OUT OSC IN KEY IN OCP TUNER AGC IF AGC IR
_____________

I/O O O O O O O O O I O O O I I I I I I I O O I I Not connected AUDIO MUTE HALF TONE GND Power supply to connect 5 V Ground Not connected Not connected Stop BUS DATA Switch SAW OSD B output OSD G output OSD R output OSD FAST BLAKING output BUS DATA output BUS CLOCK output Not connected Not connected Not connected Power supply to connect 5 V Power supply to connect 5 V

Description

V. OSC STOP (When SCREEN is adjusted) Degauss coil switch Ceramic oscillator output Ceramic oscillator input Main KEY input Over current protector Tuner AGC input IF AGC input Remote control signal input Reset Switch on LED POWER/STANDBY RGB BLANKING input FUNCTION SW input

RESET LED POWER F/SW S/SW

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IC BLOCK DIAGRAMS
IC, TA24C16-10PC

IC, TDA6103Q

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ADJUSTMENT
SET-UP FOR ADJUSTMENT
Because the video signal output from a pattern generator is used as the adjustment signal input during adjustment, the video signal output from the pattern generator must conform with the specifications. Measure the output waveform across 75 load. Confirm that the synchronizing signal has an amplitude of about 0.3 V, the video signal portion has an amplitude of about 0.7 V and the burst signal has an amplitude of about 0.3 V with flat envelope. Confirm that ratio of the burst signal amplitude and the red signal amplitude is 0.30 : 0.66. If the output signal does not conform with the specifications, calibrate the pattern generator. (Refer to pattern generator operation manual.) Use the LEADER: LCG 404 for the pattern generator.

1. CRT ADJUSTMENT 1-1. Precautions
(1) Receive the white raster signal, and then perform aging for at least 20 minutes. (2) Demagnetize the area surronding the CRT with a degausser before making adjustments. (3) Set the picture quality for each mode to the factory setting. (4) Position the front screen facing the east as much as possible.

1-2. Purpose
(1) Beam landing adjustment (purity magnet) Set the left/right balance of beam landing. If there is a discrepancy in this adjustment, a color irregularity will occur. After completion of the landing adjustment, it is necessary to perform convergence adjustment.

Approx. 0.7V 1 Vp-p White (Approx. 75%) Approx. 0.3V

Burst signal
Before adjustment After adjustment

Approx. 0.3V

Color irregularity

75% white Yellow

Fig. 1-1
Magenta Green Black Cyan Blue Red

TV display Color bar signal of a pattern generator

PRECAUTIONS BEFORE STARTING ADJUSTMENT
Satisfy the following setting conditions before starting adjustment. · Allow warm-up of 20 minutes or longer. (Do not turn off during warm-up.) · Set all picture quality controls of users' setting to initial set-up, unless otherwise specified. · Picture quality reset 1. Select "Picture" on the screen menu and press enter button. 2. Select "Normal" and press enter button. 3. Select "Reset" and press enter button. · Set the pattern generator's output level to 1.0Vp-p (across 75 load).

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(2) Beam convergence adjustment (4-pole magnet) Align the R beam with the B beam. The G beam does not move with this adjustment.
(magenta)

(3) Beam convergence adjustment (6-pole magnet) With a 4-pole magnet align the G beam with the already aligned R/B beam.

B
R/B

(magenta)
R/B

R

(white)

G

G

G

RGB

Align the R beam with the B beam Fig. 1-2

Align the G beam with the R/B beam Fig. 1-3

(4) The composition of each magnet is as shown in Fig. 1-4. In making adjustments, rotate the lock ring clockwise (looking from the CRT' s back screen) and disengage. Be careful not to loose the lock ring too much. If the magnet assembly has become shifted during adjustments, secure it to the position in Fig. 1-4.

DY lock screw

Purity 4-pole 6-pole Lock ring Magnet assembly lock screw NK C.B

CRT

DY

Magnet assembly

Fig 1-4

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1-3. Beam Landing Adjustment
(1) Receive the green raster signal from the pattern generator. (2) Loosen the magnet lock screw, and shift the magnet assembly backward (toward the neck). (3) Loosen the DY lock screw, and shift the DY deflecting yoke backward (toward the neck). (4) After opening the two purity magnets to the same angle, adjust the color width of the bands on both sides of the screen so that they are equal. (refer to Fig. 1-5 (a)).
As there is occurrence of convergence distortion after completing the landing adjustments, be sure to carry out convergence adjustments. If the color irregularities in the screen' s corner section are not improved, correct them with the landing magnet. After using the landing magnet, be sure to demagnetize the CRT with degausser and verify that there is no occurrence of color irregularity. (refer to Fig. 1-6) Landing magnet: 81-JTI-710-010 (two-sided adhesive tape) : 80-XVI-218-010 Cushion

R=B

R

G
Fig 1-5 (a)

B

As shown in Fig. 1-5 (b), the purity magnet functions in relation to the electron beam. (5) Gradually shift the deflecting yoke toward the front (toward the CRT funnel). Stop movement at the point when the screen has become completely green.

Landing magnet Cushion

S

N

N

S

NS

SN

Since the landing magnet is polarized, check the screen' s improvement through rotation, not only by position.
S
N

S
N

SS

Fig 1-6
NN

Fig 1-5 (b) (6) Also, verify the respective monochromatics of red and blue. (7) While looking at the screen, adjust the tilt of the deflecting yoke and tighten the DY lock screw. (8) Shift the magnet assembly to the front (toward the CRT funnel), stop movement before the adjustment position and then tighten the magnet lock screw. At this time, be careful not to shift the position of the purity magnet.

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1-4. Beam Center Convergence Adjustment
Make adjustments on the convergence with 4-pole and 6-pole magnets. Operate each magnet in relation to the electron beam as shown in Figs. 1-7 and 1-8. When performing this adjustment, verify whether there is distortion in the focus adjustment. If necessary, carry out adjustments again.

1-5. The Surrounding Convergence Adjustment
Perform this adjustment after completion of adjustment 1-4. (1) Shake the deflecting yoke up, down to the right and left, and adjust any discrepancies in the screen' s surroundings. (2) Insert wedges in three locations in the gap between the deflecting yoke and the surface of the CRT funnel in order to secure the deflecting yoke. (Refer to Fig. 1-9)

S S B N G N R S S N
B G R

N

Wedge

Fig 1-7 Wedge In Fig. 1-7, two 4-pole magnets are stacked together so as to be of the same polarity. Move the B and R beams to their respective direction, by rotating the two 4-pole magnets together. By adjusting the opening of the two magnets, it is possible to adjust the amount of the beam' s movement. Position of wedge
S
S
B G R

Wedge

N S

N

Fig. 1-9
N
B G R

S

N S

N

S

N

Fig 1-8

In Fig. 1-8, the two 6-pole magnets are stacked together so as to be of the same polarity. Move the B and R beams to their respective direction, by rotating the two 6-pole magnets together. By adjusting the opening of the two magnets, it is possible to adjust the amount of the beam' s movement. (1) Receive the dot pattern signal from the pattern generator. (2) Pay attention to the center of the screen, and perform adjustments with two 4-pole magnets so that the R beam and B beam are perfectly aligned and become a magenta color. (Refer to Fig. 1-2) (3) In the same way, pay attention to the screen, and perform adjustments with a 6-pole magnet so that the magenta beam and G beam are aligned and become a white dot. (Refer to Fig. 1-3) (4) After adjustments are completed, secure all magnets with the lock link. (Refer to Fig. 1-4)

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2. ELECTRICAL ADJUSTMENT
1. Use the numeric keys on the remote control to set the receiving channel to Pr91. 2. Set Sharpness on the Picture Menu screen to 0. 3. Press the buttons on the remote control in the following order: Skip (R) Move (G) Menu The following menu will appear on the TV screen: SVC V0 R BIAS G BIAS B BIAS R DRIVE G DRIVE B DRIVE V. CENTER V.SIZE H.CENTER VCO VCO FIN VCO-L VCO-L FIN AGC LED EAST Pr REMOCON 159 136 127 35 31 32 10 23 28 07 107 05 113 44 No 01 A 5. Screen Input signal: Stair-step Adjustment point: SFR touched at lever part of FBT (T402). Measuring instrument: Pattern generator/PAL 5-1. Set the TV to the "Normal I" mode. 5-2. Set the R/G/B Bias data values on the menu screen to 127. 5-3. Set the R/G/B Drive data values on the menu screen to 32. 5-4. Adjust the lower SFR of FBT (T402) so that the second scale from the right of stair-step starts to glow.

Second scale from right Fig. 5-1

* To terminate the menu screen, press the power button on TV or remote control to turn power off. 4. AFT PAL Input frequency: 38.9 MHz Measuring instrument: Pattern generator/PAL 4-1. Set the pattern generator frequency to 38.9 MHz. 4-2. Connect the pattern generator output (38.9 MHz) to the IF pin of tuner U101. 4-3. Choose VCO from the menu screen. 4-4. Press the "Vol+" button on the remote control: "Please wait!" will blink on the screen, and after several seconds, it will disappear. SECAM Input frequency: 34.2 MHz Measuring instrument: Pattern generator/SECAM 4-5. Set the pattern generator frequency to 34.2 MHz. 4-6. Connect the pattern generator output (34.2 MHz) to the IF pin of tuner U101. 4-7. Choose VCO-L from the menu screen. 4-8. Press the "Vol+" button on the remote control: "Please wait!" will blink on the screen, and after several seconds, it will disappear.

6. White Balance Input signal: White raster Measuring instrument: Pattern generator/PAL * Perform aging before adjustment for at least 20 minutes. * Perform all adjustment steps several times. Set the TV to the "Normal I" mode when performing adjustment steps 6-1 _ 6-9. Bias Adjustment: 6-1. Supply white raster from the pattern generator. 6-2. Fix the bias value of the color, which is developed the most on the screen to 127, and use the Vol +/- buttons on the remote control to adjust the other two bias values so that the picture is white. Drive Adjustment: 6-3. Use the Vol +/- buttons on the remote control to set the R Drive value to 63 so that the picture is reddish. 6-4. Lower the value until red disappears. 6-5. Use the Vol +/- buttons on the remote control to set the G Drive value to 63 so that the picture is greenish. 6-6. Lower the value until green disappears. 6-7. Use the Vol +/- buttons on the remote control to set the B Drive value to 63 so that the picture is bluish. 6-8. Lower the value until blue disappears. 6-9. Perform steps 6-1 _ 6-8 several times so that the picture is seen more white.

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7. Focus Input signal: Dot pattern Adjustment point: SFR located at upper part of FBT (T402) Measuring instrument: Pattern generator/PAL Adjust SFR which is located at upper part of FBT (T402) in order to get the best focus for the dot. 8. AGC Input signal: Color bar (ANT RF-Input) Measuring instrument: Pattern generator/PAL Test point: Tuner U101 AGC pin 8-1. Set the receiving frequency at Pr91 to that of pattern generator. 8-2. Connect an oscilloscope to the AGC pin of tuner U101. 8-3. Choose AGC from the menu screen. 8-4. Use the "P " button on the remote control to set the value to maximum, and then set it to a value where the voltage at the test point is 1 V lower than the maximum. · Set the receiving frequency at Pr91 to that of pattern generator. · Choose AGC from the menu screen. · Use the "P " button on the remote control to set the value to that where no noise or beat occurs. 9. Vertical Center Input signal: Crosshatch Measuring instrument: Pattern generator/PAL 9-1. Set the TV to the "Normal I" mode. 9-2. Choose V.CENTER from the menu screen. 9-3. Adjust the "Vol +/-" buttons on the remote control so that the dot mark at the center of crosshatch is positioned at the vertical center of screen.

10. Vertical Size Input signal: Crosshatch (with circle) Measuring instrument: Pattern generator/PAL 10-1. Set the TV to the "Normal I" mode. 10-2. Choose V.SIZE from the menu screen. 10-3. Adjust the "Vol +/-" buttons on the remote control so that the dot mark at the center of crosshatch is positioned at the vertical center of screen, the circle is a perfect circle, and each hatch is square.

A

Fig.10-1

11. Horizontal Center Input signal: Crosshatch Measuring instrument: Pattern generator/PAL 11-1. Set the TV to the "Normal I" mode. 11-2. Choose H.CENTER from the menu screen. 11-3. Adjust the "Vol +/-" buttons on the remote control so that the dot mark at the center of crosshatch is positioned at the center of screen, and the number of squares on the left and right is the equal.
Center

A

B

CRT center mark
Fig.11-1

Fig.9-1

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MECHANICAL EXPLODED VIEW 1/1
E E E

E

BINDER, WIRE 12 10 C F D D 11 13 PWB

D D

B

BINDER, WIRE

F 15 6 9 F 8 14

F PWB A

3 5

7

4

1

2

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MECHANICAL MAIN PARTS LIST 1/1

REF. NO 1 2 3 4 5 6 7 8 9 ! 10 11 12 13 14 15 A B C D

KANRI DESCRIPTION NO. S4-850-A03-310 ANT ROD S4-855-621-900 MARK BRAND ABS BK 8A-JB8-002-010 PANEL,FRONT S4-855-542-200 DECO SENSOR PMMA 8A-JB8-003-010 BTN,CHANNEL 8A-JB8-004-010 8A-JB8-001-010 S4-858-314-410 8A-JB8-005-010 S9-7P2-316-600 S4-859-608-640 S4-851-9A4-710 S5-8G0-000-084 8A-JB8-006-010 S4-856-818-300 S4-859-906-210 87-741-096-410 S4-856-013-301 S4-856-013-300 S4-856-215-402 LENS,SENSOR CABI,FRONT SPEAKER SP-77A05 3W 8 OHM BTN,POWER HOLDER AC CORD CRT DOSA A34JLL90X89 CRT GROUND AS 14A3 COIL DEGAUSSING 14" DC-1450 CABI,BACK CLAMP WIRE PH-WL-5034 CORD,POWER SCREW TAPPTITE 3-10 SCREW CRT FIXING AS L-140 SCREW CRT FIXING AS L-80 WASHER RUBBER SCREW TAPPING 4-14 SCREW TAPPTITE 3-8

PART NO.

!

E S7-172-401-412 F 87-741-095-410

COLOR NAME TABLE
Basic color symbol Color Basic color symbol Color Basic color symbol Color B Black C Cream D Orange G Green H Gray L Blue LT Transparent Blue N Gold P Pink R Red S Silver ST Titan Silver T Brown V Violet W White WT Transparent White Y Yellow YT Transparent Yellow LM Metallic Blue LL Light Blue GT Transparent Green LD Dark Blue DT Transparent Orange GM Metallic Green YM Metallic Yellow DM Metallic Orange PT Transparent Pink LA Aqua Blue

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211, IKENOHATA 1CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111
737004 Printed in Singapore