Carver C 4000 Service Manual

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CARVER
Model 6-4000

Sonic Holography/Autocorrelation Preamph'fier

Technica'l Service Manua]

Carver Corporation

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2. TECHNICAL SPECIFICATIONS

The test specifications listed in this section are made in accordance

with IHF-A-202, standard methods of measurement. Levels which are specified
in dB are referenced to 2.5 volts (dBm) unless otherwise noted. Outputs under
test are terminated at 10K ohms. Some changes in test specifications have
occurred since production began. and will continue as improvements warrant.
The values listed represent the worst-coase conditions which the unit is
warranted to maintain.

2.1 Dimensions, Assembly

The C-4000 is built in a metal case consisting of a steel
chassis, steel sub-front panel and aluminum front-panel. The front-
panel is anodized. The unit measures:

Width 19 in

Height 6.75 in

Depth 8.25 in
The depth does not include handles or space for connections. Al-
though champaign-gold 6-4000 units are not designed for rack mount,

many post-2500 serial units have notches in the chaSSis behind the
handles, which may be used as a template to drill the front-panel.
The mounting of the headphone jack makes it neccessary to remove
top and bottom covers to remove the front panel for drilling. The
length/breadth dimension is EIA standard. All black front-panel
C-4000 units are precut for rack mounting.

2.2 Output, Gain, Load-Drive

A 250 millivolt signal at any high level input should yield
2.5 Vrmsat Main Outputs, with Volume set to full clockwise rota-
tion, with all front panel buttons out. This test condition of
dBm reference may vary 1.3 dB depending upon the series, but will
not influence frequency response, or signal-to-noise ratio.

The C-4000 will clip at 6.4 Vrms output. Its Main Outputs
will drive 5.lK ohm loads with no less than 5.0 Vrms at clipping,