Carver M1.0t Service Manual

Page 1

CARVER

Powerful 0 Musical 0 Accurate

M-1.0t
MAGNETIC FIELD POWER AMPLIFIER
SERVICE MANUAL

CONTENTS Page
1. SAFETY INFORMATION ............................................................. 3
2. INTRODUCTION ....................... , .................................................. 4
3. SPECIFICATIONS ...................................................................... 5
4. CALIBRATION PROCEDURE ..................................................... 6
5. BLOCK DIAGRAMS .................................................................... 7
6. SCHEMATICS AND LAYOUTS .................................................. 9
7. PARTS ORDERING .................................................................. 19
8. PARTS LIST .............................................................................. 2O
9. VOLTAGE CONVERSION ......................................................... 27
10. SERVICE BULLETINS .............................................................. 28

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SECTION 3

SPECIFICATIONS

Specifications for the M-1 .Ot lnv. = lnverting Version

Power Output:

Continuous Average Power Output 2

Bridged-mono operation:

Power at Clipping:

Dynamic Headroom:

Frequency Response:
T.H.D.:

IM Distortion:

Noise:

Input impedance:

Sensitivitw

Damping Factor:
Gain:

Display:

Power Consumption:
Power Requirements:

Dimensions:

Weight:

N.l. = Non-lnverting Version

200 watts per channel into 80 from 20 Hz to 20 kHz. with
no more than 0.15% THD

400 watts per chamel into 40 from 20 Hz to 20 kHz, with
nomorethan 0.15% THD

1000 watts into 80 from 20Hz to 20 kHz. with no more
than 0.15% WD

400 watts per channel into an at 1 kHz (Inv. version)
350 watts per channel into 80 at 1 kHz (N.I. version)

3.8d8 @ 8 ohms (Inv. version) 4.1dB @ 8 ohms (N.I.)
2.9dB @ 4 ohms (lnv. version) 3.1dB @ 4 ohms (N.I.)

20Hz to 20tz (+ DdB. - 0.5dB)
Less than 0.15% 20Hz to 6kHz
Less than 0.1 %

-100 dB A-weighted, referenced to rated power
-82 dBW A-weighted, referenced to 1 watt.

51 kn (lnv. version)
100k!) (NJ. version)

1.75V rrns for rated power into 8 ohms at 1 kHz (Inv.)
1.3V rrns for rated power into 8 ohms at 1 kHz (N.I.)

125mv rrnsior1w output into 8 ohms at 1 kHz (Inv.)
95mv rmslor1w output 'nto 8 ohms at 1 kHz (N.I.)

Greater than 9 - Tube Characteristics

27dB (Inv. version)
30dl3 (N.I. version)

Peak responding, 1mS attack. 1 second delay
7 LED indicators per chamel

1200w at full power

120VAC/60Hz (USA and Canada)
230VAC/50Hz (Europe)

3.75 H x19"W x13.5"D

95mm x 483mm x 343mm

19 lbs

8.6 kg

Test Note: Accurate measurement depends on a sufficiently "stiil AC supply. The 60 Hz AC line distortion

must be below lHF specifications.