H Ultra-Harmonizer®. INSTRUCTION MANUAL. Eventide the next step Harmonizer is a registered trademark of Eventide Inc. for its audio pitch shifta. H Ultra-Harmonizer (R) SERVICE MANUAL Eventide the next step TABLE OF CONTENTS INTRODUCTION H SPECIFICATIONS OPTIMUM. This is not mine. i tip my hat to the guy/guys who put in the effort to do this. Thank you sir and sirs service manual User manual.

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Check output level settings.

Consult a data book for more specific operational details. Faulty installations can be anything from bad audio connections, low ac line voltage or improper ventilation.

H Service Manual | Eventide

Given input from the front panel and the MIDI control port, the host controls the signal processors. The primary goal is a stereo pitch shifter, so the architecture is based on the computational needs of 3h000 shifting.

Only a dim backlight. This change relates to audio breakdown at extremely high temperatures.

R1 65 drops the -1 8 volts to -1 0 for use in the A to D converter. Pin 10 of U69 is connected internally to the collector of a transistor. U pin 11 resets the U flip-flop and is gated by pin 9 to allow an update clock for U and U to occur at a time when the FD bus is stable. With a device as complex as the H there are many occasions when operator error, wiring mistakes or faulty installation account for what was thought to be a device breakdown.


The display, switches, wheel and contrast are controlled and monitored by the front panel data bus FPD which is actually directly connected to the Brain Data bus. This reset is applied to the brain, which begins fetching instructions from memory.

H3000 manual

This is the only channel distortion adjustment required. After the lowpass filtering, the signal is mixed at U6A with any feedback signal sent via R67 from the output DAC section. Some are general purpose bits, intended for handshaking and triggering events. For detailed information consult a Motorola, 8 Bit Microprocessors data book. The entire unit relies on the two main address and data busses. The address is put on the Global Data bus as a 16 bit word.

One audio channel bad.

H Series User Manual | Eventide

Do all modifications sync, problem. Check A to D data output.

LCD contrast is the control of the viewing angle that the user sees. This signal also clocks the 1 6 bit shift register formed by U1 80 and U1 On rare occasions, after step B, the upper line mabual the H display will flash, and then the display will black mnaual.


A high at the “set” input drives the output high. The held sample is “integrated down” in two different stages of resolution by U7A and U7B. No audio at all.

No display action upon turn-on. There are five different required voltages which are supplied by regulators U60 through U U is set up to divide by 16 with two outputs unused. This signal indicates the beginning of an input sample period. This is done until ail three PELs are loaded with signal processing programs.

CLK1S is the input sample rate which is in reality That stores the data into the latch while the Global Data bus goes on doing other things.

The chip is designed as a high speed signal maunal, it is able to perform mathematical functions very fast. This is effectively random noise generated by such things as bus contention, wrong timing or no timing at all.