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Thanks you very much for this "hard to find" service manual.
Will help a lot in repairing this tuner.
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I have this hi-fi system for a long time and I need to repair some things. Founding this manual will be very helpfull :)
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It is pretty good. The schematics were covered all components, the manual also provide the parts list . It's useful for the trouble shooting.
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Very fast service, best quality of the service manual and the schematics
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This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
Troubleshooting
6-2 Troubleshooting Procedures by Error Modes
6-2-1 Installation & Connection
POWER Press to turn the TV on and off. Remote Control Sensor Aim the remote control towards this spot on the TV.
Indicator Light Key
� : Light is On � : Light is Blinking � : Light is Off TIMER � � � � � � � LAMP � � � � � � � STAND BY/TEMP � � � � � � � Standby state.
Indication The picture will automatically appear in about 15 seconds. Auto Timer ON/OFF has been set and the set will automatically be turned on in about 25 seconds. A cooling fan inside the set is not operating normally. Lamp cover on the rear of the set is not properly shut. Check if the ventilation hole on the rear of the set is blocked, because if the inner temperature is too high, the power will shut off. Lamp may be defective.
� It takes about 30 seconds for the TV to warm up, so normal brightness may not appear immediately. � The TV has a fan to keep the inside lamp from overheating. You'll occasionally hear it working.
6-2-2 Protect Status
1. When the rear cover is opened A sensor detects when the rear cover is opened and turns the set off and then into Standby mode. If you close the cover or fix the switch, you can turn the set on by pressing the Power button on the unit or the remote control. The set will then operate normally. 2. When the temperature sensor operates When the set is overheated, the internal temperature sensor turns the set off and the set goes to Standby mode. When the internal temperature of the set returns to a normal range(95�), turn the power on by pressing the Power button on the unit or the remote control. The set will then operate normally. 3. Attempting to turn the lamp on fails repeatedly If turning the lamp on fails, the set automatically tries turning the lamp on 3 times. If all attempts fail, all LED's on the front panel will blink. Check the lamp and the ballast and replace them, if necessary. Samsung Electronics 6-7
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