Plinius JARRAH Instruction Manual - page 9
9
PHONO CARTRIDGE LOADING ADJUSTMENT
The phono cartridge load can be adjusted to suit your particular phono cartridge, using two pairs of
internal blue mini-switches.
The Jarrah mini-switches are factory set to a 47kΩ load. Also, switch 1 is set in the on position. This is a
220pF capacitive setting and is usually required for RF suppression. It is not recommended that you turn
switch 1 off.
Disconnect the lead from the IEC socket on your Plinius Jarrah. Carefully remove the lid by undoing the
six cap screws. Locate the blue mini-switch banks to the rear of the circuit board. Adjust the settings of
the five individual switches (remember to do both channels) to give a loading required with reference to
the table below.
L
OAD
R
EQUIRED
S
WITCH
N
UMBER
A
ND
S
ETTING
1 2 3 4 5 6
L
OAD
R
EQUIRED
S
WITCH
N
UMBER
A
ND
S
ETTING
1 2 3 4 5 6
7.4Ω
ON
ON
ON
ON
ON
ON
29Ω
ON
ON
ON
ON
ON
7.5Ω
ON
ON
ON
ON
ON
30Ω
ON
ON
ON
ON
7.6Ω
ON
ON
ON
ON
ON
31Ω
ON
ON
ON
ON
7.7Ω
ON
ON
ON
ON
32Ω
ON
ON
ON
8.0Ω
ON
ON
ON
ON
ON
41Ω
ON
ON
ON
ON
8.1Ω
ON
ON
ON
ON
43Ω
ON
ON
ON
8.2Ω
ON
ON
ON
ON
45Ω
ON
ON
ON
8.3Ω
ON
ON
ON
47Ω
ON
ON
8.8Ω
ON
ON
ON
ON
ON
76Ω
ON
ON
ON
ON
8.9Ω
ON
ON
ON
ON
82Ω
ON
ON
ON
9.0Ω
ON
ON
ON
ON
90Ω
ON
ON
ON
9.1Ω
ON
ON
ON
100Ω
ON
ON
9.7Ω
ON
ON
ON
ON
320Ω
ON
ON
ON
9.8Ω
ON
ON
ON
470Ω
ON
ON
9.9Ω
ON
ON
ON
1kΩ
ON
ON
10.0Ω
ON
ON
47kΩ
ON
Now reassemble your Plinius Jarrah.