Crate CA 120DG Jack Board PCB Schematics 588SCH 0

Page 1

J8

RING
TIP sw +1 SVA
r 10
HIGH-Z 1/4W _Iicso +15VB
TIP LINE OUT 5per T 10
3 V
R1 15 SLVEisw 5 4 CS1
4. : .047
2.2K SLEEVE - 100V
1/8W 0 _I_ J: C79
5per T 10
R1 16 T 35" -15VB
2 2K R141
- -1 EVA We;
C64 1/8W R1 1 8 10
\I+ 599 LOW-Z LINE OUT 1/4W
7r 220 J9 5per
47
63V 1/8W
5per
CB3 ®
R1 17
fij J11 DSF SWITCHING
47 220 FEEDBACK FILTERS
63V 1/8W SW6 RING SS J16
5per
10KL CW GND LIFT TRINGFSW 2
|_ - - -| TlPisw R83
LINE OUT LEVEL 4ND G17 R
TIP
| | 4
Jl_© (91, SLVEisw TS 5
-15VB +15VB I I I SLEEVE T 6
o ©~
_ _ _ | (VaIUe)
D28 D29
1 N914 1 N914 -L_
75v PIV 75V PIV
J10 060
|CQ:A
TIP R1 19 H ( 3
IV I + I
TIP SW 1 K
EFFECTS I_a_ new 5261/ 2 /
RETURN SLVE_ SW 5per LO-74 EFFECT SEND (Value)
' R120 8
10K R121
1/8W
5per £11725] LINE OUT
6
SCpBEé EFF RETURN
T - 5
12 ICQ:D 'gIOOIf ___ +15VA 4 a
4 100V -15VA 3 a
13 R122 DSP A/B
LO-74 4.7K BANK 2
1/8W J15
5per DSP A/B BANK J17
RING
. I come SsuE _
CAUTION. _ RINGfiW 0 214/03 Ll
THIS SCHEMATIC IS PROVIDED FOR USE BV OUALIFIED PERSONNEL - A 1/14/03 INITIALISSUE _
TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO OUALIFIED npisw REV Date DESCHWON EmsjEWS) 0th By Appvd by Dam
SERVICE PERSONNEL DO NOT PERFORM ANV SERVICING BEVOND
THAT EXPLAINED IN THE OPERATING INSTRUCTIONS TIP THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETAFW TO ST LOUIS MUSIC, INC
NOTES SLVEisw Signatures: DaIe:
1)CALITION SHOCK HAZARDII D .
THIS UNIT CONTAINS HAZARDOUS VOLTAGE DISCONNECT POWER SLEEVE l EFFECTS raw" REM 7/03/03 F U d D
AND BE SURE POWER SUFFLV IS DISCHARGED BEFORE SEND Chem "5' 59 " _
TOUCHING INTERNAL PARTS ReIeased
2) UNLESS NOTED, RESISTOR VALUES IN OHMS 1/AW«5°/. TOL PIoI Dale FrI Feb 13 2am DvaWIng SIze B Drawmg TIIIe
CAPACITOR VALUES IN MICROFARADS SUV-111% TOL. 6 PM Tm 3 2155 memg Type Schema SCHEM - JACK BRD
a) VOLTAGES ARE MEASURED WITH I MEGOHM OSCILLOSCOPE T I _ D N b
AND 10 MEGOHM DIGITAL VOLTMETER, a erance. 01355 Code NONE Iawmg Um ev
Sheet 1 01 I 075588

A

B | C | D

CA120DG

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