Blown Fuses; Audio Problem; Lights On, No Audio - Kurzweil RE-210 Service Manual

3.3.2 Blown Fuses

Remove cover and change fuse
3.3.3 Power Switch and Fuses OK, No Power
Should carefully check power cable between Power Module and Engine Board (4pin)

3.4 Audio Problem

3.4.1 No Audio, Distortion
Check connection cable both woofer and tweeter, headphone
3.4.2 Distortion
Audio out and in jack are bed, head phone jack too

3.4.3 Lights on, No Audio

If all cables ok, check, +2.5V, 3.3V, +30V power on the amplifier section
of the engine board. For proper function, audio amplifier needs all 2.5V, .3.3V, +30V
3.4.4 Malfunctioning Treble or Bass Section
First check scanner diagnostic, if Knob Test OK, But still have a problem. Check I2C line
at the scanner. (U5, PIN#25, 26)
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