Specifications

Service Modes, Error Codes, and Fault Finding

EN 21RAM1.0A LA 5.

2010-Mar-12

5.5.4 Trouble shooting diagrams

Set is in PC mode, no image

Figure 5-12 Trouble shooting diagram - set is in PC mode, no image

Ye s

Start

LED is lighted

1. Is Power Core available?

2. Is SSB J1-Pin 6, 7, 8 - 5V available?

3. Is SSB J3-Pin 4 - 0~0.8V (Low level) available?

4. Is SSB J2-Pin9 - 0~0.8V (Low level) available?

LED ON to OFF

1. Is SSB J3 Pin 4 - 2.5~3.3V (Hi level) available?

Is backlight on?

Is Display Normal?

END

1. D-sub cable is OK?

2. Check whether J2 -Pin 6 PWM is normal.

3. Is P2 video input signal normal?

4. Check whether U36 input/output of video signal is normal.

5. Check whether J10,J11 video signal is normal.

6. Is Connection of J10 and J11 FFC cable OK?

1. Is SSB J1 PIN 9, J2-Pin1, 2 Voltage 12V available?

2. Check if J1 Pin 2 - 2.5~3.3V(Hi Level) is available?

3. Check if J2 Pin 5 - 2.5~3.3V(Hi Level) is available?

18930_214_100310.eps

100310