World Audio Kel 80 Instruction Manual - page 6
c) Chassis earth solder tag, located on fixing bolt of mains transformer, using 1/1.13 black wire.
see page 10
3) Connect up the red BFA speaker post to the following.
a) For 4 ohm setting, connect the purple leadout from the O/P T. OR for 8 ohm setting, connect the
red leadout from the O/P T. N.B. NEVER connect the 4 ohm & 8 ohm leads together or you will
damage the O/P T. Always isolate the lead you are not using. see page 10.
b) Cut a length of single screened cable at 60cm, expose 2cm of one end, remove the screened
portion as this is not needed, and wire up the red signal wire to the speaker`s red terminal.
Exposed 2cm of the other end, wire up the red signal wire to PCB tab 8 and the screened
portion to PCB tab 7. see page 8
WIRING THE PCB TO EXTERNAL CONNECTIONS
1) Refer to page 8 closely and solder all remaining 13 external joins to the PCB.
2) With all mains transformer connections, tab 4, 13 to 19 it is a good idea to twist up the relevant
winding leads to reduce the likelyhood of hum. Thus, twist together the following: white and
orange, twist red, red and black and lastly twist yellow, yellow and grey(thick). see page 10
TABLE SHOWS PCB TO EXTERNAL CONNECTIONS
tab no.
label on PCB
external connection to:
1
brown wire from mains lead
2
brown wire to mains switch
3
earth wire from mains lead
4
mains transformer secondary grey wire(thick) earth connection
5
black BFA speaker post
6
A
black wire from output transformer
7
GND
ground of feedback screened wire
8
FB
signal of feedback screened wire
9
GND
ground of signal screened wire
10
I/P
signal of signal screened wire
11
A
white wire from output transformer
12
CT
2 x orange wire from output transformer
13
black wire from mains transformer
14
1 x red wire from mains transformer
15
1 x red wire from mains transformer
16
1 x yellow wire from mains transformer
17
1 x yellow wire from mains transformer
18
white wire from mains transformer
19
orange wire from mains transformer
page 5
KEL80 instructions 27/3/00 10:44 am Page 6