Mark IV Table of Contents

PRECAUTIONS

OVERVIEW _____________________________ 1

FRONT PANEL:

POWER-UP ____________________________ 2

CONTROLS:

RHYTHM 1 GAIN ________________________	3
PULL BRIGHT __________________________	3
R 1 TREBLE ____________________________	3
R 1 + R 2 BASS and R 1 + R 2 MID _________	3
R 1 PRESENCE _________________________	4
R 1 MASTER ___________________________	3
RHYTHM 2 GAIN & FAT __________________	4

R 1 + R 2 BASS and R1 + R 2 MID __________ 4

R 2 TREBLE ____________________________ 5

R 2 PRESENCE _________________________ 5

R 2 MASTER ___________________________ 5

SETTING THE LEAD MODE:

LEAD GAIN _________________________ 5 & 6

LEAD TREBLE __________________________	6
LEAD BASS & LEAD MID _________________	6
LEAD DRIVE ___________________________	6
LEAD BRIGHT __________________________	7
LEAD PRESENCE & LEAD MASTER ________ 7
GRAPHIC EQ ________________________ 7 & 8
OUTPUT LEVEL _________________________	8
SILENT RECORDING (Pull Switch) _________	8
STANDBY ______________________________	8
POWER (Full & Tweed Power) _____________	8

REAR PANEL:

A.C. RECEPTACLE _______________________ 9

FUSE __________________________________ 9

REVERB & REVERB FOOTSWITCH ________ 10

EQ ROCKER SWITCH ____________________ 10

SATELLITE CONTROL: EQ & SEND JACK __ 10 EFFECTS LOOP SECTION ____________ 10 & 11

RECORDING OUT _______________________ 11

SLAVE OUT (D.I.) ________________________ 11

TRIODE & PENTODE SWITCH _____________ 11

SIMUL-CLASS & CLASS A SWITCH ________ 12

HARMONICS & MID GAIN SWITCH _________ 12

POWER TUBE SUBSTITUTION ________ 12 & 13

SPEAKER JACKS _______________________ 13

MODE SELECTOR SWITCH _______________ 13

EXTERNAL SWITCHING JACK ____________ 14

GOING STEREO ________________________ 14

FACTORY SAMPLE SETTINGS ____________ 15

PERSONAL SETTINGS PAGE _____________ 16

TUBE TASK CHART _____________________ 17

TUBE NOISE & MICROPHONICS ___________ 18

DIAGNOSING PRE-AMP TUBES PROBLEMS _ 19 BIAS ADJUSTMENT ______________ 20,21 & 22

PARTS SHEET __________________________ 23

NOTE: Do to the sophistication and advanced layout of this amplifier, we strongly urge you to read and understand the workings and how to's of your new MARK IV...doing so will save time and increase your enjoyment.