Ibanez AD 230 service manual

Page 1

ANALOG DELAY AD- 230

IN DEX

FEATURES __________________ 1

OPERATING PRECAUTIONS..- _ __ _ _ -2

How To REMOVE THE CASE &

THE BOTTOM PLATE __________ 3

DISPOSITION OF PARTS _________ 4

BLOCK IDIAGRAMS _____________ 5

OPERATING INSTRUCTIONS ________ 6
ADJUSTMENT PROCEDURES ________ 7

PARTS LIST____ -_-__ _ - - __ _ _ -3
BACKGROUND INFORMATION- _ _ _ _ _ - .9
TROUBLE SHOOTING_____ ___ - _ - -10
P.C.B _____________________ 11
SPECIFICATIONS..- _ _ _-_ _ _ _ _ _ _ .12

SCHEMATIC DIAGRAMS- _ _ _ _ __ __ -13

Page 2

1. FEATURES

'Newly developed high performance BED ICs provide wide delay time
range from 1 to 600ms.

oIndividual Analog Delay and Multi-Flanger sections. Each section
can be pre set, then switched in when desired.

0 High impedance phone jacks and balanced low impedance XLR connectors
for input and output.

-Delay only output line in addition to mixed output line.

'Variable input sensitivity. Accepts a wide range of signal levels
without distortion and provides optimum signal to noise ratio.

LED ladder displays input signal level for constant visual monitoring.

-Reverb, chorus, echo and vibrato are among the effects obtainable
with the Analog Delay section.

-Mu1ti-Planger section has 5 variable parameters for flanging and
other effects suited to individual taste.

'Newly developed "compander" circuitry for wide dynamic range.

°Emphasis/de-emphasis circuitry provides good S/N.

~Standard 19 inch rack mount front panel.

'Footswitch provides "no hands" selection of delay, flanger or normal
mode.

2 . OPERATING PRECAUTION

TO PREVENT UNN'ECBSSARY PROBLEMS AND MAINTAIN BEST PERFORMANCE

READ THIS BEFORE OPERATING.

' Power supply; 117VAC or 720-240VAC

0 Operate unit only if temperature is within the range of 0C(32°F)
to 40°C(104°F). Do not attempt to use AD-230 if ambient temperature
exceeds this range. I

'The AD-230 is constructed from precision parts. Do not allow liquids
or other contaminents in contact with the unit.

- Press only one function button at a time. The unit will operate
in only one of the three modes. NORMAL, DELAY or FLANGER.

Combinations are not possible.