No Display
1. Check the fuse (FU500) on the digital PCB.
2. Check the fuse (FU100) on the linear PCB.
3. Check the jack (JK500) on the digital PCB.
4. Check the power switch (SW900) on the key PCB.
5. Check the flat cable between the digital and linear PCBs.
6. Check the back light.
7. Check the LCD...
Sem display
1. Verifique o fusível (FU500) sobre o PCB digital.
2. Verifique o fusível (FU100) sobre o PCB linear.
3. Verifique a tomada (JK500) sobre o PCB digital.
4. Verifique o interruptor (SW900) no PCB chave.
5. Verifique o cabo flat entre os PCBs digitais e linear.
6. Verifique a luz de volta.
7. Verifique o LCD...