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Colour Television
Chassis:
EB4-A
(MKII)
Service Ref.No.:
CE25DN3-B-01
MODEL HISTORY
CE25DN3-B-03
Service Ref.No.
Supplement manual (CRT A59ECF50X05)
CE25DN3-B-04
Service Ref.No.
Supplement manual (CRT A59EHJ43X38)
Tuner change in conjunction with new board layout. The
Tuner used on this cannot be inter replaced on
CE25DN3-B-01 as the Main Board is physically different.
CE25DN3-B-07
Service Ref.No.
Supplement manual (CRT A59EHJ43X38)
As CE25DN3-B-04 but also using new CRT board.
CE25DN3-B-12
Service Ref.No.
Supplement manual (CRT A59EHJ43X38)
As CE25DN3-B-04 but with changes on the Audio board
because of change to IC 3451.
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-20
Part No. SKSM0228
Service Manual
F3PMV
MAY 1998 Revision 1 Oct 98
CE25DN3-B
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
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Table of Contents
Related Manuals for Sanyo CE25DN3-B
Summary of Contents for Sanyo CE25DN3-B
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Page 1: Table Of Contents
TV set. Supplement manual (CRT A59EHJ43X38) As CE25DN3-B-04 but with changes on the Audio board because of change to IC 3451. Note This TV receiver will not work properly in foreign... -
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.
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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 39.5MHz Sweep ATT 20dB 0dB=176mVrms/75 Trap alignment (Only required for UK model) SETTING 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. CE25DN3-B-01 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 JXMCA RC TRANSMITTER 610 268 0492... -
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 compone nts whose value have special significance to product safety. - Page 13 Ref. No. Part No. Deacription Ref. No. Part No. Deacription R3815 401 037 5410 MT-GLAZE 1K JA 1/10W RESISTOR R2601 401 018 2800 CARBON 330 JA 1/4W R3816 401 038 3514 MT-GLAZE 330 JA 1/10W R2602 401 019 1901 CARBON 3.9K JA 1/4W R3817...
- Page 14 Ref. No. Part No. Deacription Ref. No. Part No. Deacription C3510 403 069 5611 CERAMIC 0.01U K COIL C3511 403 010 1112 CERAMIC 1000P J L3450 401 037 5014 MT-GLAZE 0.000 ZA 1/10W L3451 645 008 2221 INDUCTOR,2.2U K C3512 403 192 5915 CERAMIC 0.1U K C3513...
- Page 15 Ref. No. Part No. Deacription Ref. No. Part No. Deacription Q801 405 118 4217 TR PH2369 C108 403 027 1211 CERAMIC 5P J Q835 406 007 2106 TR JC546A C109 403 027 1211 CERAMIC 5P J Q861 406 007 1901 TR JC556A C110 403 033 4510 CERAMIC 82P J...
- Page 16 Ref. No. Part No. Deacription Ref. No. Part No. Deacription C871 403 068 0419 CERAMIC 0.1U Z C421 404 046 8806 MT-POLYPRO 6200P J 1.5K C872 403 043 9106 ELECT 47U M C422 403 299 3210 POLYPRO 0.027U J 400V C873 403 018 0503 CERAMIC 22P J...
- Page 17 Ref. No. Part No. Deacription Ref. No. Part No. Deacription R1052 401 037 5717 MT-GLAZE 100K JA 1/10W R203 401 024 6720 CARBON 100 JA 1/6W R1053 401 037 6714 MT-GLAZE 1.2K JA 1/10W R204 401 024 6720 CARBON 100 JA 1/6W R1054 401 037 8114 MT-GLAZE...
- Page 18 Ref. No. Part No. Deacription Ref. No. Part No. Deacription R619 401 016 1538 CARBON 22 JA 1/4W R866 401 038 0711 MT-GLAZE 2.2K JA 1/10W R620 401 007 5815 CARBON 120K JA 1/2W R867 401 038 0711 MT-GLAZE 2.2K JA 1/10W R621 401 007 5815 CARBON 120K JA...
- Page 19 Ref. No. Part No. Deacription Ref. No. Part No. Deacription L441 610 000 0964 LINEARITY COIL D644 407 166 2303 DIODE ERC-91-02L L442 610 221 3348 COIL D645 407 053 7206 ZENER DIODE MTZ6.2C L461 645 005 5645 INDUCTOR 222UH K D647 407 012 4416 DIODE 1SS133-T-77 L462...
- Page 20 Ref. No. Part No. Deacription Ref. No. Part No. Deacription SW501 610 011 2728 SWITCH,LEVER 1P-3T SW601 645 024 0607 PUSH SW POWER SDDFC3 TP-A 645 008 4058 TERMINAL PLUG TP-B 645 008 4058 TERMINAL PLUG TP-D 645 008 4058 TERMINAL PLUG TP-E 645 008 4058 TERMINAL PLUG X131...
- Page 21 WITH THE ORIGINAL SERVICE MANUAL FOR CE25DN3-B-00. SERVICE MANUAL SUPPLEMENT FOR ALL INFORMATION NOT CONTAINED IN THIS SUPPLEMENT PLEASE REFER TO THE ORIGINAL SERVICE MANUAL FOR CE25DN3-B-00. THIS SUPPLEMENT ONLY CONTAINS DIFFERENCES BETWEEN SERVICE REFERENCE NUMBERS. Specifications FOR SCHEMATIC DIAGRAM REFER TO CE25DN3-B-00.
- Page 22 ELECTRICAL PARTS LIST DIFFERENCES Description Ref. No. Part No. Ref. No. Part No. Description Service Ref. No. CE25DN3-B-03 Chassis construction ASSY, PWB, MAIN F3PMM 1AA0B10H019C0 (Differences) ASSY,PWB,SIF F3JM 1AA0B10E4120A (Page 12) ASSY,PWB,AUDIO F3JM 1AA0B10E4120B (Page 13) ASSY,PWB,CRT F2RC 1AA0B10E24500 (Page 13)
- Page 23 WITH THE ORIGINAL SERVICE MANUAL FOR CE25DN3-B-01. SERVICE MANUAL SUPPLEMENT FOR ALL INFORMATION NOT CONTAINED IN THIS SUPPLEMENT PLEASE REFER TO THE ORIGINAL SERVICE MANUAL FOR CE25DN3-B-01. THIS SUPPLEMENT ONLY CONTAINS DIFFERENCES BETWEEN SERVICE REFERENCE NUMBERS. Specifications FOR SCHEMATIC DIAGRAM REFER TO CE25DN3-B-01.
- Page 24 ELECTRICAL PARTS LIST DIFFERENCES Description Ref. No. Part No. Ref. No. Part No. Description Service Ref. No. CE25DN3-B-04 150V Chassis construction R661 ASSY, PWB, MAIN F3PMY 1AA0B10H019J0 D661 (Differences) HZT33 :L5630 :UPC574J ASSY,PWB,SIF F3JM 1AA0B10E4120A (Page 13) R806 IC654 C661...
- Page 25 NEW BOARD LAYOUT REQUIRED FOR NEW TUNER TUNER CANNOT BE FITTED INTO OLD SERIES BOARD, OLD TUNER CANNOT BE FITTED INTO NEW SERIES BOARD.
- Page 26 SERVICE MANUAL SUPPLEMENT Chassis No. EB4-A25 SERVICE MANUAL SUPPLEMENT THIS SUPPLEMENT SHOULD BE FILED WITH THE ORIGINAL SERVICE MANUAL FOR CE25DN3-B-01. SERVICE MANUAL SUPPLEMENT FOR ALL INFORMATION NOT CONTAINED IN THIS SUPPLEMENT PLEASE REFER TO THE ORIGINAL SERVICE MANUAL FOR CE28DN3-B-01.
- Page 27 Description Ref. No. Part No. Ref. No. Part No. Description R725 401 009 6602 CARBON 3.3K JA 1/2W Service Ref. No. CE25DN3-B-07 R727 401 020 0801 CARBON 470 JA 1/4W Chassis construction R741 401 020 2003 CARBON 4.7K JA 1/4W...
- Page 28 150V R661 D661 HZT33 :L5630 :UPC574J R806 IC654 C661 BA178M09T EM4.7 R804 R807 6.8K L101 L2B9 100KN C802 63GK0.1V :HJ0.1G C110 C100 CJ82CA 16EM C101 T101 16EM SL0004XV 470CD J30B0250N J30B0250N C108 C109 CC5CA CC5CA C117 R101 1/10GZ 1/10GZ R108 C114 L102 1/10GZ...
- Page 29 NEW BOARD LAYOUT REQUIRED FOR NEW TUNER TUNER CANNOT BE FITTED INTO OLD SERIES BOARD, OLD TUNER CANNOT BE FITTED INTO NEW SERIES BOARD.
- Page 30 WITH THE ORIGINAL SERVICE MANUAL FOR CE25DN3-B-01. SERVICE MANUAL SUPPLEMENT FOR ALL INFORMATION NOT CONTAINED IN THIS SUPPLEMENT PLEASE REFER TO THE ORIGINAL SERVICE MANUAL FOR CE25DN3-B-01. THIS SUPPLEMENT ONLY CONTAINS DIFFERENCES BETWEEN SERVICE REFERENCE NUMBERS. Specifications FOR SCHEMATIC DIAGRAM REFER TO CE25DN3-B-01.
- Page 31 ELECTRICAL PARTS LIST DIFFERENCES Description Ref. No. Part No. Ref. No. Part No. Description Service Ref. No. CE25DN3-B-12 ASSY,PWB,SIF F3JM 1AA0B10H021DA (SAME AS 1AA0B10E4120A) Chassis construction ASSY, PWB, MAIN F3PMY 1AA0B10H019J0 (Differences) ASSY,PWB,AUDIO F3JM 1AA0B10H021DB ASSY,PWB,SIF F3JM 1AA0B10H021DA (Differences) (SAME AS 1AA0B10E4120B EXCEPT THE...
- Page 32 NEW BOARD LAYOUT REQUIRED FOR NEW TUNER TUNER CANNOT BE FITTED INTO OLD SERIES BOARD, OLD TUNER CANNOT BE FITTED INTO NEW SERIES BOARD.
- Page 33 How to use this document Display only the page Display the page with bookmarks View actual size Fit the page to the window Fit the visible width to the window Page back and page forward Undoes a change of page or view, or redoes a change Go to first and last page Text selection tool a b c...