Page 1
UD-Stomp
2
IMPOR TANT NOTICE
This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed
that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and under-
stood by the users, and have therefore not been restated.
WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in per-
sonal injury, destruction of expensive components and failure of the product to perform as specified. For
these reasons, we advise all Yamaha product owners that all service required should be performed by an
authorized Yamaha Retailer or the appointed service representative.
IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certifi-
cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of
any form.
The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and
service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable
and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to
exist, please contact the distributorÕs Service Division.
WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to
this bus.)
IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power
to the unit.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly
other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT
SO EVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose
eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling
food.
WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those
originally installed.
LITHIUM BA TTER Y HANDLING
This product uses a lithium battery for memory back-up.
WARNING : Lithium batteries are dangerous because they can be exploded by improper handling. Observe the following pre-
cautions when handling or replacing lithium batteries.
Leave lithium battery replacement to qualified service personnel.Always replace with batteries of the same type.When installing on the PC board by soldering, solder using the connection terminals provided on the battery cells.Never solder directly to the cells. Perform the soldering as quickly as possible.Never reverse the battery polarities when installing.Do not short the batteries.Do not attempt to recharge these batteries.Do not disasemble the batteries.Never heat batteries or throw them into fire.
ADVARSEL!Lithiumbatteri-Eksplosionsfare ved fejlagtig handtering. Udskiftning ma kun ske med batteri af samme fabrikat og type. lever det brugte
batteri tilbage til leverandren.
VARNINGExplosionsfara vid felaktigt batteribyte.
Anvand samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren.
Kassera anvant batteri enligt fabrikantens instruktion.
VAROITUSParisto voi rajahtaa, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiiin.
Havita kaytetty paristo valmistajan ohjeiden mukaisesti.
The following information complies with Dutch official Gazette 1995. 45; ESSENTIALS OF ORDER ON THE COLLECTION OF BATTERIES.
¥ Please refer to the diassembly procedure for the removal of Back-up Battery.
¥ Leest u voor het verwijderen van de backup batterij deze beschrijving.
Page 2
UD-Stomp
3
SPECIFICATIONS
Digital Section
¥ 8-Band Delay (Delay Time: 696msec max per band)
¥ Delay Time, Loop Filter (High Cut, Low Cut), Feedback, Tap,
Pan, Level parameters can be set for each individual Effect
Band.
¥ Effect Bands can be connected in series or parallel
¥ Effect Bands can be grouped together
¥ Maximum delay time (8 bands grouped) is 5890msec
¥ The same number of delay outputs as the number of delays
used in the Group are available.
¥ Tap Tempo Function (Delay Time)
¥ Loop Sampling Function
¥ Individual Modulation Settings (Speed, Depth) for each Effect
Band are available.
¥ Two types of modulation waves can be set simultaneously
(Sine + Triangle/Saw Up/Saw Down).
¥ Modulation sync between bands is available.
MIDI Functions
Receive: Program Change (Program Change Table can be
created), Control Change, Bulk In
Transmit: Program Change, Control Change, Bulk Out, Merge
Out
Controller Switch
Top Panel
Push Switch x17
UP, DOWN, UTILITY, STORE, EFFECT BAND (1 - 8),
CONNECT, GROUP, SYNC, WAVE, FUNCTION
Knob x14
ASSIGNABLE CONTROL, TIME COARSE, TIME FINE,
LOW CUT FILTER, HIGH CUT FILTER, FEEDBACK,
DIRECT LEVEL/PAN, TAP, SPEED, DEPTH, PAN, LEVEL,
EFFECT LEVEL, OUTPUT
Footswitch x4
1, 2, 3, BANK
Rear Panel
STAND-BY ON/OFF, INPUT LOW/HIGH
Display
7 Segment LED (3 digit) x1
Push Switch LED x17
Foot Switch LED x4
Connections/Jacks
INPUT: Standard Monaural Phone Jack
OUTPUT L/MONO, R: Standard Monaural Phone Jack
PHONES: Standard Stereo Phone Jack
EXP. PEDAL: Standard Stereo Phone Jack
DIGITAL OUT: COAXIAL (Samplling Rate : 44.1 kHz)
MIDI IN, MIDI OUT: 5 pin DIN
A/D Converter
20 bit + 3 bit Floating
D/A Converter
20 bit
Sampling Frequency
44.1 kHz
Memory Allocations
Preset: 90
User: 90
Input Level/Impedance
(When using preamp bypass)
INPUT HIGH: -25dBm/1MW
INPUT LOW: -15dBm/1MW
Output Level/Impedance
OUTPUT L/MONO, R: 0dBm/1kW
PHONES: 0dBm/47W (47W load)
Power
Exclusive Power Adaptor (AC-10)
AC Output: AC12V, 1000mA
Power Consumption
15W
Dimensions (WxHxD)
280x70x184mm (11.0Óx2.8Óx7.2Ó)
Weight
2.2kg (4lbs 14oz)
Accessories
Power Adaptor (AC-10)
OwnerÕs Manual
