Physiomed PHYSIOTHERM-S Service Manual page 27

Error Diagnosis PHYSIOTHERM-S
Error Possible cause
code
Signal generator defective.
E30
(Note: Invalid from software version
1.23 PSD. Is replaced by Error 12.)
E31 Preliminary amplifier defective.
Fuse F10 (4AT) defective.
(Note: Invalid from software version
1.23 PSD. Is replaced by Error 12.)
E32 Power amplifier defective.
(Note: Invalid from software version
1.23 PSD. Is replaced by Error 12.)
HF monitoring defective.
E33
(Note: Invalid from software version
1.23 PSD. Is replaced by Error 12.)
E34 Tuning element or PCB controller
defective.
E39 (Not used)
CPU clock defective (wrong quartz). Check or replace quartz or exchange PCB controller.
E40
E41-E42 (Not used)
Short circuit of STOP button (or
E49
button is pushed when switching
on the instrument)
E50-E56 (Not used)
E57 Watchdog does not trigger a RESET;
MAX691 is defective
External RAM defective (does not
E58
store data)
Wrong checksum PSD312
E59
Display No supply voltage.
remains Mains cable not plugged in or not
plugged in properly in socket or on
black
the unit.
Thermal switch in the anode/control
Power
switch transformer might have been
triggered.
is on
Fuses may be defective.
but
display
remains
black
26
What to do
Signal generator does not generate any output power (HF1=0).
Exchange the signal generator.
LED B7 is not alive ⇒ Exchange fuse F10 (4AT).
Preliminary amplifier does not deliver any output power
(HF2=0).
Exchange the preliminary amplifier.
Power amplifier does not deliver any output power (HF3=0).
Check anode voltage ⇒ X28 (power supply):
approx. 1.8 V DC.
Check cathode voltage ⇒ X23 (power supply): approx. 0.9 V
DC.
Check heating voltage ⇒ X35 (PCB distributor on power
amplifier): approx. 4.8 V AC.
Exchange power amplifier if required.
Restart the unit with the service menu.
Check HF1/HF2 and HF3 without power (P=0W).
PCB controller may be defective (if HF1/HF2 and HF3 = 0)
Exchange defective PCB.
Restart the instrument without pressing the STOP button; or
replace the STOP button.
Replace IC MAX691 or exchange PCB controller.
Replace PSD312 or exchange PCB controller.
Replace PSD312 or exchange PCB controller.
Check the mains supply.
Check connection of the mains cable.
Let the unit cool down.
Check the fuses of the unit's mains connection and replace if
required. Check the mains voltage specifications on the back of
the unit and select another voltage as described in chapter 4.5.
PHYSIOTHERM-S - Service Manual