SAMSUNG CL21M40MQGXXAO Diagram
10. Schematic Diagram
Samsung Electronics
Schematic Diagram
10-1
10-1 Power
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Power
Signal
TP01
TP02
TP04
TP08
TP02
TP08
TP01
TP04
Schematic Diagram
10-2 Samsung Electronics
10-2 Micom
Power
Signal
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TP04
TP09
TP10
TP11
TP12
TP13
TP11TP11
TP10
TP09
TP04
TP12
TP13
Samsung Electronics
Schematic Diagram
10-3
10-3 Audio
Power
Signal
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Schematic Diagram
10-4 Samsung Electronics
10-4 Side A/V & CRT Board
Power
Signal
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Troubleshooting
Samsung Electronics 6-1
6. Troubleshooting
6-1 Checkpoints by Error Mode
■ Power LED: Check that the LED works when turning the Tact Switch ON/OFF
■ LED Indicators: See table 6-2-1 Basic Troubleshooting: LED Diagnosis on the Front Panel.
■ In case of a power failure or abnormal screen, check the following items.
1) Check that the power cord is correctly connected to electrical source equipment.
2) Check that the Tact Switch has been pressed.
3) Check that the signal cable is properly connected.
4) Check that channel setting has been set.
Troubleshooting
6-2 Samsung Electronics
6-2 Troubleshooting Procedures by Error Modes
6-2-1 Basic Troubleshooting: Diagnosis of LED on the Front Panel
Power Description
○
This happens when the Tact Switch is not pressed or the power cord is disconnected.
○→◑→●
If you press the power switch of the or the channel key on the remote control when in St-BY status, the screen will be turned on.If the LED blinks and the screen is not displayed, check the
connection between the Power and the Main Board.
◑ : Light is Blinking
○ : Light is Off
■ Troubleshooting Mechanism :
- The System Blcok has the last output terminal, TDA9377PS/N3, which shows the internal Test pattern.
- The Power Block supplies power to the Deflection Block
- The System Block receives all signal inputs, the signal-processed signal is sent to CRT Ass'y.
Deflection and focus are controlled by the Deflection Block
Troubleshooting
Samsung Electronics 6-3
6-3 Troubleshooting Procedures by ASS'Y
1. NO Power
2. NO Video
Troubleshooting
6-4 Samsung Electronics
3. NO Sound
4. Fly Back Lion Badness
GT804,GT805
PD801S
CN603 CN602
CN701A
CN401
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