FRONT PANEL CONTROLS
This section describes each of the controls on the front panel. You
can read through this section now. Some of the descriptions
will be more meaningful after you first work through the getting
started tutorial.
This switch and potentiometer (Pot.) turns the unit's power on and
off and is also used to adust the audio level into the Phone jack (18)
This LED goes on when power is on in the unit.
This switch turns the equalizer on and off. When the equalizer is
off adjusting the equalizer's controls has no effect on the output
audio.
(1)
(2) Power on LED (LED3)
(3) Equalizer On/Off Switch (S3)
Power On/Off Switch (S1) / Phones (monitor) Volume Control (R29)
-7-
1
2
3
4
5
6
9
8
7
8 BAND EQ BOARD
PC BOARD LAYOUT AND PARTS
* Mounted on pin side of P.C. board
-22-
C15 - .1 uF mylar
C16 - .1 uF monolithic
C17 - .18 uF mylar
C18 - 19 - 4.7 uF Tantalum electrolytic
C20 - 100 uF electrolytic
R1 - 10 ohm ¼ watt 5% Res
R2 -R3 1K ohms ¼ watt 5% Res
R4 - 3.3k ohm 10 pin 9 RES SIP
R5-R6 - 3.3K ohm 10 Pin 5 Res SIP
R7 - 15.0K ohm ¼ watt 1% Res
R8 - 100K ohm 10 Pin 9 Res SIP
R9 - R10 10K ohm ¼ watt 5% Res
R11 - R18, R20 100 K ohm Slide Pots*
R19 5K ohm Slide Pot*
R21 - 1M ohm 10 Pin 9 Res SIP
R22 - R23 1m 10 Pin Res SIP
U1- U3 Tl074 or JRC2060 (14 Pin DIP)
J1 (16 Pin DIP)
C1 - 300pF mylar
C2 - 390 pF mylar
C3 - 560 pF mylar
C4 - .0012 uF mylar
C5 - .003 uF mylar
C6 - .0022 uF mylar
C7 - .0039 uF mylar
C8 - .0047 uF mylar
C9 - .0056 uF mylar
C10 - .01 uF mylar
C11 - .012 uF mylar
C12 - .018 uF mylar
C13 - .022 uF mylar
C14 - .047 pF mylar
