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Summary of Contents for Acapella TW1 S
- Page 1 Acapella TW1 S Service...
- Page 2 Fuses Nr.1 Fuse A-Driver (slow, 100mA) Nr.2 Fuse Main Power (slow 1,6A / 240V - 2,4A / 110 V) Nr.3 Fuse Valve (slow 400mA)
- Page 3 Overview, Test Point and components No. 1 Test point for adjusting the turn-on level No. 1 A Ground point for test point Nr.1 No. 1 B Potentiometer for adjusting the turn-on level No. 2 Test point, Bias No. 2 A Ground point, Bias No.
- Page 4 Examination and adjustment of the A driver To check the A driver a multi-meter has to be applied to the test points 2 (+) and 2 A (Ground). To do this, attach the multi-meter with selected DC voltage measurement range (250 V). In manual switch position a reading of ca.
- Page 5 A - Driver faulty If A driver is found to be defective after replacing a faulty oscillator tube, then all labelled transistors should be exchanged. As with the oscillator tube replace the 400 mA (T) at the same time replacing the 100 mA (T) fuse. On completion, the operating point has to be newly adjusted as described previously.
- Page 6 Transistors A -Driver Nr.1 BU 526 Nr.2 BD410 Nr.3 BC107A Nr.4 MPSA 92 Nr.5 BCY89 / 8 Nr.6 BF259...
- Page 7 Adjustment of the switch on logic circuit No. 1 test point, logic circuit No. 1 A test point, Ground No. 1 B Potentiometer, switch one level adjust No. 2 NF input The adjustment get the switch on logic circuit a direct voltage gauge = (+) about the test points 1 and 1 A = (Ground) to attached.
- Page 8 Start-up grant (fast warming of the combustion chamber) With the help of the Potentiometers Nr.1 on the start-up grant circuit board the duration of the start-up grant is adjusted. The period of time for the start-up grant should for approx. 4 to 5 seconds being adjusted.
- Page 9 Component, combustion chamber No. 1 Thread bar with nut, tooth lock washer, U plate, Feather, U plate No. 2 Combustion chamber No. 2 A Electrode No. 3 Brass hull No. 3 A Outer electrode No. 4 Ceramic block...
- Page 10 Combustion chamber assembly For the assembly of the combustion chamber in the horn the outer electrode (no. 3 A) is squeezed together a little around one Producing bias voltage. After this becomes the brass hull (No.), 3, with the open side up into the outer electrode slid.
- Page 11 Combustion chamber assembly step 2 After the assembly of combustion chamber, outer electrode and how becomes spherical wave horn the ceramic block (no. 4) now attached pointed below. The springing is screwed together tightly with the horn. This one is becoming now Electrode (no. 2 A) with a washer and a nut fastens the size's M3, the horn assembly is completed now.
- Page 12 Connections, horn Nr.1 spring Nr.2A high voltage connection Nr.3A base Nr.4 ceramic block...
- Page 13 Connections horn, figure 2 Nr.1 anode connection Nr.2 high voltage connection Nr.3 high voltage spool...
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