Akai PRO 1000 Service Manual

Page 1

AKAI

PRO 1000
SERVICE MANUAL

Page 2

I'. TECHNICAL DATA

RECORDING TRACK SYSTEM
PLAYBACK TRACK SYSTEM

MAXIMUM REEL SIZE
TAPE SPEED

2-track, 2-channel stereo system
Z-track, 2-channel stereo system
4-track, 2-channel stereo system
Size 26 (No. 10)

38cm/sec, Dem/sec, 9.5cm/sec

TAPE SPEED DEVIATION $0.570
WOW AND AND FLUTTER SBCm/sec: 0.025% WRMS
l9cm/sec: 0.04% WRMS

TAPE RISING CHARACTERISTICS

FREQUENCY CHARACTERISTICS

OVERALL HARMONICS DISTORTION RATE

9.5cm/sec: 0.08% WRMS

0.8 sec at 38cm/sec speed

(Time from start-up to time wow and flutter enter specified value)
38cm/sec, OVU recording: 50~20,000Hz, ildB

19cm/sec, OVU recording: 40~24,000Hz, i3dB

9.5cm/sec, OVU recording: 60~12,000Hz, 13d];

Not more than 1%, 1kHz, OVU (38cm/sec, chm/sec, 9.5cm/sec)

TOTAL S/N RATIO 60dB
PLAYBACK COMPENSATION CHARACTERISTICS ' NAB
ERASE RATIO 70dB
RECORDING BIAS FREQUENCY 150kHz

HEADS (4) 2-track recording GX head, 2-track playback GX head
4-track playback GX head, Full-track erase head
MOTORS (3) AC servo, oil circulating type, no-oil-supply motor with built-in CPG for

FAST-FORWARDING AND REWINDING TYPE

capstan drive x l ]
Oil-circulating type, no-oflsupply, 6-pole, eddy cerrent motor x 2
Within 120 sec (for 740m tape)

INPUT MICROPHONE (4) Optimum impedance: 600~10 kohms \
Minimum input level: 0.3mV/769dB
LINE (4) Input impedance: 100 kohm's
Minimum input level: 70mV/-21dB
OUTPUT LINE (4) Load impedance: Not less than 10 kohms
Output impedance: Not more than 100 ohms
Reference output: OdB (0.775V)
MIXER (2) Load impedance: Not less than 20 kohms
, , 7 Output impedance: Not more than 1 kohms
Output level: 300mV
HEADPHONES 50mV/8 ohms . '
LEVEL METER PEAK Conforms to DIN Standard, Response time: 0.01 sec
Meter return time: 0.8 sec
VU Conforms to BTS Standard

SEMICONDUCTORS

POWER SUPPLY

POWER CONSUMPTION

EXTERNAL DIMENSIONS (W x H x D)

WEIGHT

STANDARD ACCESSORIES

130 transistors, 4 diodes, 6 FETs and 2 le.
100V AC, 50/60Hz
116W

Mechanism section:
Amplifier section:
Mechanism section: 28.3kg

Amplifier section: 10.2kg

Metalic Size 26 (No. 10) empty reel x 1, reel hub adapter x 2,
recording connection cord x 1 set, sensing tape x 1 and

486 x 412 x 284mm
486 x 231 x 309mm

operators manual x 1

*Technical Data and external appearance are subject to change without notice.
* If not stated otherwise, the Technical Data are those obtained through measurements carried out in conformity with methods specified
in the Japanese Industrial Standard (JIS) and with SCOTCH #206 used as the standard tape.