McIntosh C20 - Dokumentacja Pobierz pdf (Strona 10)

Table 1. High-Level Input Connections

TAPE COMPARE The tape compare input accepts a signal

from a tape recorder with a monitor head

and pre-amplifier.

AUX The auxiliary input accepts any auxiliary

service requiring flat frequency response,

such as a T.V. set, tuner, tape recorder

with its own playback pre-amplifier, etc.

TAPE The tape input operates with tape machines

containing their own playback pre-ampli-

fier.

TUNER 1 & The tuner inputs accept AM and FM outputs

TUNER 2 from a stereo tuner or a pair of stereo

tuners.

0.25V

115K

470K

TAPE HEAD 1 & 2

2-10

TAPE HEAD 1 & 2

10-70

PHONO 1 & 2

XTAL

CERAMIC

PHONO 1 & 2

MAGNETIC

2-10

PHONO 1 & 2

MAGNETIC

10-70

These jacks are to be used with a tape deck

or a pair of tape decks that do not con-

tain their own playback pre-amplifiers and

have an output of less than 10 MV.

These jacks are to be used with a tape deck

or a pair of tape decks that do not con-

tain their own playback pre-amplifiers and

have an output of more than 10 MV.

These jacks are to be used with a constant

amplitude cartridge such as a crystal,

ceramic, or frequency-modulated device.

These jacks are to be used with magnetic

cartridges having an output less than

10 MV.

These jacks are to be used with magnetic

cartridges having a relatively high output.

Maximum input voltage for this input is

70 MV.

2 MV

10 MV

0.1 V

2 MV

10 MV

47K

267K

220 mmf

in series

with 47K

47K

If a cartridge requires less than 47,000 ohms

load impedance, a resistor can be added across the

terminals of the cartridge to achieve the correct ter-

mination. The following chart may be used as a guide:

Desired Impedance

47,000 ohms (47K)

37,000 ohms (37K)

27,000 ohms (27K)

15,000 ohms (15K)

6,800 ohms (6.8K)

Resistor Across Input

No Resistor

180,000 ohms (180K)

62,000 ohms (62K)

22,000 ohms (22K)

8,200 ohms (8.2K)

INPUT INPUT

CONNECTION FUNCTION SENSITIVITY IMPEDANCE

Table 2. Low-Level Input Connections

CONNECTION FUNCTION SENSITIVITY IMPEDANCE

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 19 20

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