Table of Contents
Advertisement
Quick Links
Colour Television
Service Manual
Model CE21DN4-C
Service Ref.No.: CE21DN4-C-01
PRODUCT CODE: 111339616
ORIGINAL VERSION: Chassis No.:EB4-A(MKII)
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
Contents
Safety precautions/Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Cabinet Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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. SKSM0314
F7KVV
MAY 1999
21DN4
CE
-C
Advertisement
Table of Contents
Related Manuals for Sanyo CE21DN4-C
Summary of Contents for Sanyo CE21DN4-C
-
Page 1: Table Of Contents
Colour Television 21DN4 Service Manual Model CE21DN4-C Service Ref.No.: CE21DN4-C-01 PRODUCT CODE: 111339616 ORIGINAL VERSION: Chassis No.:EB4-A(MKII) 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. -
Page 2: Safety Precautions/Specifications
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 F7KVV... -
Page 4: Circuit Description
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 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 7 screws(A). 2. Pull out the cabinet back. ANT75 Ω F7KVV... -
Page 7: Service Control Adjustment
SERVICE CONTROL ADJUSTMENT B1 POWER SUPPLY ADJUSTMENT 6. Set screen VR for one colour to be just visible. 1. Set VR641 to be mechanical centre before pressing [BIAS VR ADJUSTMENT] the main switch. 7. By using VR601, VR611 or VR621, adjust line to be 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. -
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. CE21DN4-C-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 ACCESSORIES 610 278 0741 CABINET FRONT-F7KT... -
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. Description Ref. No. Part No. Description C731 403 077 2728 CERAMIC 1000P P Q1003 406 007 2106 TR JC546A C735 403 055 8401 ELECT 22U M 250V 406 007 2007 TR JC546B C751 403 248 1608 ELECT 47U M 405 019 1909...
- Page 14 Ref. No. Part No. Description Ref. No. Part No. Description 405 028 7909 TR 2SA608-G-CTV-NP 406 007 2007 TR JC546B Q171 406 007 2106 TR JC546A 405 019 1909 TR 2SC536-E-NP 406 007 2007 TR JC546B 405 019 2708 TR 2SC536-F-NP 405 019 1909 TR 2SC536-E-NP 405 019 3804...
- Page 15 Ref. No. Part No. Description Ref. No. Part No. Description C1002 403 041 8804 ELECT 10U M 403 070 2606 CERAMIC 0.1U Z C1003 403 009 5708 CERAMIC 100P J C2002 403 068 0409 CERAMIC 0.1U Z C1004 403 130 3109 CERAMIC 0.047U K 403 070 2606...
- Page 16 Ref. No. Part No. Description Ref. No. Part No. Description C512 403 148 0404 ELECT 1000U M C879 403 068 0409 CERAMIC 0.1U Z C513 403 049 4204 ELECT 10U M 403 070 2606 CERAMIC 0.1U Z C514 403 049 4204 ELECT 10U M C881...
- Page 17 Ref. No. Part No. Description Ref. No. Part No. Description R1055 401 037 5707 MT-GLAZE 100K JA 1/10W R208 401 037 5202 MT-GLAZE 100 JA 1/10W R1056 401 037 6704 MT-GLAZE 1.2K JA 1/10W R212 401 026 1000 CARBON 2.7K JA 1/6W R108 401 037 5004...
- Page 18 Ref. No. Part No. Description Ref. No. Part No. Description 402 075 5704 WIRE WOUND 4.7 KA R885 401 038 5102 MT-GLAZE 3.9K JA 1/10W R652 401 065 1801 OXIDE-MT 12 JA R886 401 037 7800 MT-GLAZE 150 JA 1/10W R653 401 067 8204 OXIDE-MT...
- Page 19 Ref. No. Part No. Description Ref. No. Part No. Description L442 610 000 0278 COIL 407 057 9701 ZENER DIODE RD9.1EB2 610 205 1117 COIL 407 163 9909 ZENER DIODE UZ-9.1BCA L501 645 008 5642 INDUCTOR,3.3U K 407 162 2703 ZENER DIODE UZ-9.1BCB L601 645 012 3337...
- Page 20 Ref. No. Part No. Description Ref. No. Part No. Description 407 013 6508 DIODE 1S2471 R3816 401 038 3504 MT-GLAZE 330 JA 1/10W D861 407 012 4406 DIODE 1SS133 R3817 401 039 0304 MT-GLAZE 820 JA 1/10W 407 012 5809 DIODE 1SS176 R3818 401 037 6704...
- Page 21 401 037 5618 MT-GLAZE 10K JA 1/10W R3454 401 037 5212 MT-GLAZE 100 JA 1/10W production. Sanyo reserves the right to modify R3455 401 037 5618 MT-GLAZE 10K JA 1/10W components and procedures in order to comply with R3456 401 037 5014 MT-GLAZE 0.000 ZA 1/10W...
- Page 22 Ref. No. Part No. Description Ref. No. Part No. Description -22- F7KVV...
- Page 23 Ref. No. Part No. Description Ref. No. Part No. Description -23- F7KVV...
- Page 24 Sanyo Industries (UK) Ltd Printed in UK F7KVV...