Table of Contents
Advertisement
Quick Links
Colour Television
Chassis:
EB4-A
(MKII)
Service Ref.No.:
CE21DN3-C-04
Contents
Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Cabinet Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Service control adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Circuit alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Important notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Special Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Cabinet Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Electric Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-21
Part No. SKSM0271
Service Manual
F3JSY
SEPT 1998
CE21DN3-C
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
Advertisement
Table of Contents
Related Manuals for Sanyo CE21DN3-C
Summary of Contents for Sanyo CE21DN3-C
-
Page 1: Table Of Contents
CE21DN3-C Colour Television Service Manual Chassis: EB4-A (MKII) Service Ref.No.: CE21DN3-C-04 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. -
Page 2: Safety Precautions
SAFETY PRECAUTION 1: An isolation transformer should be connected in the 3: When replacing a chassis in the cabinet, always be power line between the receiver and the AC line certain that all the protective devices are installed when a service is performed on the primary of the properly, such as, control knobs, adjustment covers converter transformer of the set. -
Page 3: Block Diagram
BLOCK DIAGRAM This is a diagram for all models and therefore differs slightly from the actual block diagram. Audio Audio Unit SIF Unit EB4 MKII chassis... - Page 4 CIRCUIT DESCRIPTION 1. POWER SUPPLY chroma signals, demodulated in IC201, and output from The power supply circuit of the EB4-A chassis is pin30 (R-Y) and pin31 (B-Y). These chroma signals pass composed of a rectifier smoothing circuit, an oscillation through the 1H delay line circuit (IC271), and they are circuit, a control circuit and an output rectifier circuit.
-
Page 5: Circuit Description
Pin25: Black 6. HORIZONTAL OUTPUT Pin26: IREF A horizontal oscillation signal is output from pin37 of Pin27: Odd/Even output IC201 and switches the drive transistor Q431. This Pin28: GND switching signal is current amplified by the drive Pin29: - transformer T431 and drives the output transistor Q432. Pin30: V-deflection stop output When Q432 becomes ON, an amplifying current flows Pin31: RGB REF... -
Page 6: Cabinet Disassembly
CABINET DISASSEMBLY CABINET BACK DISASSEMBLY 1. Remove 10 screws(A). 2. Pull out the cabinet back. PLACING THE CHASSIS TO SERVICE POSITION 1. Pullout the chassis and put it to the rails on the side cabinet. 2. Fix main board with hook on the top rail. EB4 MKII chassis... -
Page 7: Service Control Adjustment
SERVICE CONTROL ADJUSTMENT B1 POWER SUPPLY ADJUSTMENT 5. Set mode to one horizontal scanning line, how to set 1. Set VR641 to be mechanical centre before pressing refer to "service mode" the main switch. 6. Set screen VR for one colour to be just visible. 2. -
Page 8: Circuit Alignment
CIRCUIT ALIGNMENT VIF alignment SETTING Adjustment Waveform DC 15.5V C644 + By using T141, adjust "P" to AGC voltage (4.3-4.5V) IC201-pin48 be maximum amplitude. Output probe IC201-pin45 (Side b) Input probe IC201-pin7 Marker frequency 38.9MHz Sweep ATT 20dB 0dB=176mVrms/75 SIF alignment SETTING Waveform Adjustment... -
Page 9: Important Notice
INITIALIZATION (Important Notice) When you replace a memory IC (IC802), it is necessary to initialise the IC as following step. A. Initialization Press and hold the ( ) normalization button on the remote control handset and press the ( programme + button on the TV set. The IC will be initialised automatically to set the following data. -
Page 10: Special Function
SPECIAL FUNCTION This TV set allows you to set up the following special functions. Maximum volume setting and prohibition of presetting ITEM-1 Sets the current volume as the maximum volume level and prohibition of presetting. Start up programme position ITEM-1 SET ->... -
Page 11: Cabinet Parts List
SERVICE REF. NO. CE21DN3-C-04 CABINET PARTS LIST Note: Parts order must contain Service Ref. No., Part No., and descriptions. SURROUND BASS -/-- MENU Ref. No. Part No. Description Ref. No. Part No. Description CABINET PARTS 610 273 1897 ASSY,CABINET FR-F3JA-A... -
Page 12: Electric Parts List
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. - Page 13 Ref. No. Part No. Deacription Ref. No. Part No. Deacription 406 007 1802 TR JC556B 405 019 2708 TR 2SC536-F-NP 405 004 4205 TR 2SA608-E-CTV-NP 405 019 3804 TR 2SC536-G-NP 405 004 4809 TR 2SA608-F-CTV-NP Q1001 406 007 1901 TR JC556A 405 028 7909 TR 2SA608-G-CTV-NP 406 007 1802...
- Page 14 Ref. No. Part No. Deacription Ref. No. Part No. Deacription 405 019 2708 TR 2SC536-F-NP 406 007 1802 TR JC556B 405 019 3804 TR 2SC536-G-NP 405 004 4205 TR 2SA608-E-CTV-NP Q153 406 007 1901 TR JC556A 405 004 4809 TR 2SA608-F-CTV-NP 406 007 1802 TR JC556B 405 028 7909...
- Page 15 Ref. No. Part No. Deacription Ref. No. Part No. Deacription C012 403 042 4805 ELECT 1000U M C143 403 027 1201 CERAMIC 5P C C013 403 069 9500 CERAMIC 0.01U Z C146 403 010 8507 CERAMIC 12P J C014 403 069 9500 CERAMIC 0.01U Z C151...
- Page 16 Ref. No. Part No. Deacription Ref. No. Part No. Deacription C481 403 076 1405 CERAMIC 2700P K 500V C841 403 069 9500 CERAMIC 0.01U Z C482 403 159 7409 MT-POLYEST 0.1U K 250V C860 403 022 8205 CERAMIC 33P J C501 403 054 1502 ELECT...
- Page 17 Ref. No. Part No. Deacription Ref. No. Part No. Deacription R1041 401 038 2200 MT-GLAZE 27K JA 1/10W R2002 401 037 5608 MT-GLAZE 10K JA 1/10W R1042 401 037 5608 MT-GLAZE 10K JA 1/10W R2004 401 037 7800 MT-GLAZE 150 JA 1/10W R1043 401 039 0304 MT-GLAZE...
- Page 18 Ref. No. Part No. Deacription Ref. No. Part No. Deacription R626 401 016 3304 CARBON 2.2K GA 1/4W R873 401 038 6406 MT-GLAZE 4.7K JA 1/10W R874 401 037 5608 MT-GLAZE 10K JA 1/10W R631 402 000 8305 SOLID 5.6M KA 1/2W R875 401 038 7700...
- Page 19 Ref. No. Part No. Deacription Ref. No. Part No. Deacription L201 645 001 4567 INDUCTOR,10U K 407 056 8200 ZENER DIODE RD5.1EB3 L202 645 001 4567 INDUCTOR,10U K 407 163 8209 ZENER DIODE UZ-5.1BCC L203 645 001 4567 INDUCTOR,10U K D361 407 063 8309 ZENER DIODE MTZJ11C...
- Page 20 Ref. No. Part No. Deacription Ref. No. Part No. Deacription D684 408 007 8607 DIODE 1N4148 C3813 403 074 6600 CERAMIC 560P K 407 013 1206 DIODE 1S1555 C3814 403 069 1702 CERAMIC 1000P K D685 407 012 4406 DIODE 1SS133 C3815 403 069 9500 CERAMIC...
- Page 21 Ref. No. Part No. Deacription Ref. No. Part No. Deacription 403 317 4608 CERAMIC 0.33U K R3468 401 037 5400 MT-GLAZE 1K JA 1/10W C3474 403 279 4302 CERAMIC 0.33U K R3469 401 038 2101 MT-GLAZE 2.7K JA 1/10W 403 317 4608 CERAMIC 0.33U K R3471...
- Page 22 2SA564(QA,RA), oppure 2SA1015(O,Y) specified on the part service manual and controls adjusted for normal picture. in posizione "OFF". Il voltaggio puo variare CE21DN3-C-04 SERVICE REF.NO. sostituti esclusivamente con quelli indi- a meno che sia specificato altrimenti. be used for components replacement Waveforms were taken by using a wide con l'intensita del segnale.
- Page 23 J1EK1745- K1002 :J11B0490N CRT Board /Pannello Cinescopio ASSY,PWB,CRT F2RC 1AA0B10E24500 L2601 Q2601 Component Location/Lato del Componente L1022 R2604 L2C1 2SC2688'1' B-OUT 2SJ12K Z21B0040N SP901 331KN (K:L:M) VS003PGA :2SC2621 L1023 L1024 L1025 L1026 :VS017PGB <B-DRIVE> (DRA:ERA) J10EA020N L2B9 L2B9 L2B9 L2B9 100KN 100KN 100KN...
- Page 24 Main Board /Pannello Principal Circuit side/Lato del Circuito...
- Page 25 K12B J10EA050N ASSY,PWB,AUDIO F3JS SC2-IN-R 1AA0B10E412BB IC3500 SC2-IN-L BA178M09T: C3514 C3513 L78M09CV: EM10 MC78M09CT 6800BA C3512 C3511 R1257 R3517 25KK R3518 1/10 0.1BA 1/10 1000GA 1/10 Q1253 GJ1K GJ68K GJ2.2K 2SC2812L6 R1258 :2SC2412KR 12.0V C3522 R1256 R1255 1/10 5.5V 16KK 1/10 1/10 GJ68K...