DR. JOHANNES HEIDENHAJN GmbH
D-8225Traunreut ‘Tel. (08669) 31-O
SERVICE MANUAL TNC 151/155
Page 25.1
Kundendienst
Section 2.2.6
"POWER INTERRUPTED
EXTERNAL DATA INPUT"
6. After completion of a sucessful data transfer, the MB unit
will rewind the cassette and the VDU will display the
question
"EXTERNAL UNIT CONNECTED ?"
Any other display implies either a transmission error or
an incorrect/faulty test program cassette.
Fig. 7 Loading and Initialization of Burn-In Test Program