Sanyo CE14A1-E Service Manual

Service Manual

Colour Television

Model:

CE14A1-E

CRT 14” A34EAC01X06

CHASSIS No 2100 EC1 V7

INDEX

1.-SAFETY INSTRUCTIONS ..............................................................................................................................................................................2

1.1.- WARNING............................................................................................................................................................................................2

1.2.- PRECAUTION AGAINST X-RAYS..................................................................................................................................................2

1.3.- Recommendations to protect our environment.........................................................................................................................2

2.-TECHNICAL CHARACTERISTICS.................................................................................................................................................................3

2.1.- SAFETY.................................................................................................................................................................................................3

2.2.- EMC (Electromagnetic Compatibility)..........................................................................................................................................3

3.-SPECIAL MODE FOR FACTORY...................................................................................................................................................................4

4.-DESCRIPTION OF HOTEL MODE.................................................................................................................................................................4

5.-ACTIVATION OF THE INITIAL AUTOMATIC CHANNEL-SEARCH............................................................................................................4

6.- BLOCK DIAGRAM..........................................................................................................................................................................................5

7.- SERVICE ADJUSMENT LOCATIONS..........................................................................................................................................................6

8.- ADJUSTMENT................................................................................................................................................................................................7

8.1.- NOTES ABOUT THE ADJUSTMENT.............................................................................................................................................7

9.- CE14A1-E CABINET PARTS LIST..............................................................................................................................................................8

10.- CHASSIS ELECTRICAL PARTS LIST.......................................................................................................................................................9

Give complete “SERVICE PART No” for parts order or servicing, it is shown on the rating sheet on the cabinet back of the TV set.

11/01/2000 Ref. Nº MS CE14A1-E

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 .

Service Manual CE14A1-E

1.-SAFETY INSTRUCTIONS

Read this page before doing any operation of adjustment, maintenance or repair the TV set described. Only skilled personnel of Sanyo Technical Service should do the adjustment, maintenance or repair of TV set.

1.1.- WARNING.

For the correct and safe use of the TV set, it is essential that the service personnel follow the process of safety generally accepted and the safety precautions specified in this manual.

An isolation transformer should be connected in the power line between the receiver and the AC line when a service is performed on the primary side of the converter transformer of the set.

1.2.- PRECAUTION AGAINST X-RAYS.

The primary source of X-RADIATION in the television receiver is the picture tube. The picture tube is specially constructed to limit X-RADIATION emissions. For continued X-RADIATION protection, the replacement tube must be the same type as the original including suffix letter. Excessive high voltage may produce potentially hazardous XRADIATION. To avoid such hazards, the high voltage must be maintained within specified limit. If high voltage exceeds specified limits, take necessary corrective action. Carefully follow the instructions for +B1 volt power supply adjustment, and high voltage adjustment to maintain the high voltage within the specified limits.

COMPLIANCE TO STANDARDS

All of those marked with X or must be

replaced with original parts

WARNING! This TV set contains components which

are particularly sensitive to static electricity (ESD).

It is recommended that all due precaution be taken

handling integrated circuits and semiconductors.

1.3.- Recommendations to protect our environment

Stand-by mode: In order to save energy and to maintain an optimum picture quality, it is advisable to switch off the TV using the ON/OFF button located at the front of TV set.

Used batteries: The batteries in the remote control of these models do not contain mercury. However, SANYO recommends that you do not dispose of used batteries in domestic refuse. Please, contact your dealer or your local authorities for information regarding the disposal of used batteries or your nearest collection point.

Recommendation about the end-of-life: These SANYO TV sets have been designed and manufactured using high quality materials which can be recycled and reused. In the future, when the life cycle of these sets come to an end, specialised companies can disassemble it and reuse certain materials. This reduces the impact of waste in our environment. Please, contact with your local authorities for information regarding the disposal of your set when the time arrives. Help us to conserve the environment we live in!

Service Manual CE14A1-E

2.-TECHNICAL CHARACTERISTICS

Cathode-ray tubes In-Line gun type.14” (35 cm) Tuning-system Voltage synthesis, 75 programs in non-volatile memory, AFT, fine tuning,

automatic, semiautomatic and manual channel-search.

Program selection Sequential selection from the controls on the set. Direct selection of any

program from the remote-control device.

Receiving channel E2..........E4; S1........S10

E5..........E12; S11.......S41

E21........E69

Reception system Systems D/K and B/G Colour system PAL Audio Power Power-rating 1,2 watts. (RMS) 10% Distortion Number of speakers 1 Full Range 16 Ω Aerial External aerial-socket 75 ohms IEC. Jack for headphones Mono jack 3'5 m/m. AV connectors 1 Scart connector 21-pin standard CENELEC AV/RGB.

Power source 220V.......240V. AC 50 Hz

Power consumption 56 Watts. (maximum consumption).

4,2 Watts. (Stand-by condition)

Timer function Switch on, off and alarm time delay are programmable in OSD over 24

hours.

Hotel mode This TV set has the possibility of being programmed in Hotel mode and

Hotel Rental mode.

2.1.-SAFETY.

It fulfils the safety requirements established in the regulation.

- EN 60065:1993.

2.2.-EMC (Electromagnetic Compatibility)

It fulfils the EMC requirements established in the regulation.

- EN 55013:1990/A12:1994

- EN 55020: 1994.

- EN 60555-2:1987.

Service Manual CE14A1-E

3.-SPECIAL MODE FOR FACTORY

The factory mode is a special TV working mode, thought to aid the manufacturing process and it is identified by the message “FAC”. This mode is not intended for customer use..

The Factory mode differences with respect to normal mode are the followings:

1. The TV set does not pass to standby mode after 10 min. without aerial signal input. Instead it remains switched on.

2. The adjustments speed is four times quicker.

3. The standby mode is disabled.

To take TV set out of Factory mode, push the key of remote control.

4.-DESCRIPTION OF HOTEL MODE

By defect the TV set switches on with the program in which is was switched off, but it is also possible to force it to switch on in a program that can be chosen between the 1 and 8 or AV.

The TV set has a special mode of operation that is adapted for use in hotels, hospitals, etc. In this case the

maximum volume level is limited to the volume chosen when the hotel mode is enabled. Furthermore, in this mode it is not possible to do channel searching neither to modify the fine tuning control. Additionally there is the “Hotel Rental” mode in which it is only possible to change the program with the remote control, and it is not possible to do so with the front keys.

These software configurations are stored in the non volatile memory and therefore they remain even though

the TV set is disconnected from the power supply. The Hotel mode configuration can be changed by pushing the SET front key and without loosing it, pushing the key of remote control. In the case of Rental mode, the modification procedure is the same as above but it is necessary to previously set the colour control to zero. When all this is done, the following indication appears on the screen:

00 HOTEL

The first, most significant digit indicates weather Hotel mode is chosen or not

0 ê Normal mode 1 ê Hotel mode 2 ê Hotel Rental mode

The last, least significant digit indicates the programme in which the set switches on

0 ê The same as it was selected when the TV set was switched off. 1 ê Always programme position 1. 2 ê Always programme position 2.

..........

8 ê Always programme position 8. 9 ê Always AV mode.

The wanted code should be introduced with the numerical keys of remote control. Always to push the complete code.

Example: 00 ê Normal mode. Switches on with the same programme selected when the TV set was switched off.

10 ê Hotel mode. Switches on with the same programme selected when the TV set was switched off. 11 ê Hotel mode. Always switches on in programme 1 21 ê Hotel Rental mode. Always switches on in programme 1. 09 ê Normal mode. Always switches on in AV mode

5.-ACTIVATION OF THE INITIAL AUTOMATIC CHANNEL-SEARCH.

In order to reset the initial automatic channel-search function, enter the tuning menu by keeping pushed the frontal SET key for a few seconds. Afterwards select the AUTO tuning mode by pushing several times the + or - key. Then push the M key to start searching and switch-off the TV set before any station is found. When the TV set is switched on again it will remain in the same situation as when it was switched off.

6.- BLOCK DIAGRAM

Service Manual CE14A1-E

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