16
The power cables for the WDPre3 and WDPhono3 are assembled from
the cable, binder line sockets and binder line plugs provided
with each amplifier.
Use a sufficient length of the 4 core grey lead for each power
cable connection (bear in mind that users of the WDPhono3 with
MC transformers may need to place the WDPhono3 at a distance
from all power transformers to minimize hum pickup).
The 4 cores consist of 3 black leads with numbered printing
(though this can be difficult to see) and a green / yellow lead.
Use the green / yellow lead for the Ground connections to pin 3.
Check the continuity with your multimeter of the Black leads to
ensure correct labelling and use for pins 1, 2 and 4.
Always connect plug to socket using the same NUMBER pins e.g.
connect a Black lead between Pin 1 on the plug to Pin 1 on the
socket. Repeat for Pins 2 to Pins 4.
Assemble in this order
:
1. Pass the rear plastic sleeve, rubber cable bush and socket
ring of the plug or socket over the cable.
2. Push the cable clamp carrier sleeve onto the cable.
3. Strip and solder the cable cores to the pins as outlined
above.
4. Using your multimeter check continuity between the pins using
the numbers as shown in the diagram above.
5. Slide the cable clamp carrier sleeve up to the plug / socket
insert and clip it into the insert.
6. Screw the metal cable clamp strap onto the carrier sleeve.
7. Clip the top cover onto the clamp carrier sleeve.
8. Slide the socket ring, rubber cable bushing and rear sleeve
up to the plug or socket body.
9. Fix the rear sleeve with the self tapping screw provided.
WDPre3 Kit Assembly Instructions
CONSTRUCTING THE POWER CABLES
1. Heater
–
–
ve
2. HT
3. Green
/
Y
-
Ground
4. Heater
+
ve
Fig. 16 Power Plug and Socket Connections
Fig. 16
Fig. 17
16
The power cables for the WDPre3 and WDPhono3 are assembled from
the cable, binder line sockets and binder line plugs provided
with each amplifier.
Use a sufficient length of the 4 core grey lead for each power
cable connection (bear in mind that users of the WDPhono3 with
MC transformers may need to place the WDPhono3 at a distance
from all power transformers to minimize hum pickup).
The 4 cores consist of 3 black leads with numbered printing
(though this can be difficult to see) and a green / yellow lead.
Use the green / yellow lead for the Ground connections to pin 3.
Check the continuity with your multimeter of the Black leads to
ensure correct labelling and use for pins 1, 2 and 4.
Always connect plug to socket using the same NUMBER pins e.g.
connect a Black lead between Pin 1 on the plug to Pin 1 on the
socket. Repeat for Pins 2 to Pins 4.
Assemble in this order
:
1. Pass the rear plastic sleeve, rubber cable bush and socket
ring of the plug or socket over the cable.
2. Push the cable clamp carrier sleeve onto the cable.
3. Strip and solder the cable cores to the pins as outlined
above.
4. Using your multimeter check continuity between the pins using
the numbers as shown in the diagram above.
5. Slide the cable clamp carrier sleeve up to the plug / socket
insert and clip it into the insert.
6. Screw the metal cable clamp strap onto the carrier sleeve.
7. Clip the top cover onto the clamp carrier sleeve.
8. Slide the socket ring, rubber cable bushing and rear sleeve
up to the plug or socket body.
9. Fix the rear sleeve with the self tapping screw provided.
WDPre3 Kit Assembly Instructions
CONSTRUCTING THE POWER CABLES
1. Heater
–
–
ve
2. HT
3. Green
/
Y
-
Ground
4. Heater
+
ve
Fig. 16 Power Plug and Socket Connections
Fig. 16
Fig. 17
