Hettich EBA 21 Repair Instructions

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12.2.7 Block diagram control panel (A4)
+Ub
2345678910111214 131516 1
zur Versorgungsplatine (SB) A1 / X2
to supply board (SB) A1 / X2
X1
GND
&
&
EEPROM
EPROM
Steuerteil A4
control panel A4
+5V
+5V
+5V
Tastatur / keyboardLCD - Display
LED - Anzeige
LED indicators
µP
U (5.00V)
re f
Reset
Verschluss / lid locking
FC Stop
Deckel offen / lid open
RxD
empfangen / senden
listen / talk
TxD
Unwucht / imbalance
FC - ERROR
Tach o in
Temp.-fühler
temp. sensor
Kühlung aus / ein
cooling off / on
Übertemp.-erkennung
overtemp. detection
2345678910 1
+Ub
GND
X101
241
X100

Hettich EBA 21 Specifications

General

Type	Centrifuge
Capacity	6 x 15 ml
Weight	Approx. 9 kg
Max. Capacity	6 x 15 ml
Timer	1 - 99 min, continuous run
Power Supply	230 V, 50/60 Hz
Temperature Range	Not applicable