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INPUTS
The input jacks are clearly marked on the back of the C-601. The following inputs are provided:
BAL 1, BAL 2, REG 1 (also used for Phono), REG 2, REG 3, REG 4, TAPE, and a SURROUND
sound loop. (see figure 3).
OPTIONAL INTERNAL PHONO FEATURE:
The REG 1 input jacks are to be used with the optional phono feature (see fig.6) The phono
ground screw is located between the REG 4 and TAPE IN jacks. The optional phono can accommodate
both magnetic and moving coil cartridges of various outputs. In the MC position, gain of the Moving
Coil stage is factory preset at 16dB which matches perfectly with most typical MC cartridges. With the
resistor kit included with the optional phono feature, the gain can also be adjusted to 20db, 25db, or
30db in order to optimize system gain, and lower noise while using other less typical MC cartridges.
(Note: The MC gain is in addition to the standard MM gain of 42dB). To change the MC gain, proceed
as follows:
1. Disconnect A.C. linecord from the wall outlet.
2. Remove top cover with Allen key supplied.
3. Locate R245 and R145 (see fig.6), which are the MC gain setting resistors for the LEFT and
RIGHT channel respectively. Remove the resistors and replace them with newly selected ones,
according to the following chart.
GAIN
Standard:
16db
20db
25db
30db
4. Having completed the resistor changes, replace the top cover.
COLOR CODED RESISTOR (or) NUMERICAL RESISTOR
(Brown, Brown, Black, Black)
(Red, Black, Black, Black)
(Orange, Grey, Orange, Black)
(Violet, Blue, Grey, Black)
-6-
1100 (110 ohms)
2000 (200 ohms)
3830 (383 ohms)
7680 (768 ohms)
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