Fostex DE-1 Service Manual
Service Manual
Model
DE-1
20-bit Dual Multi Effect Processors
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION:
TO PREVENT ELECTRIC SHOCK, MATCH
WIDE BLADE OF PLUG TO WIDE SLOT,
FULLY INSERT.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The lightening flash with arrowhead symbol,
within an equilateral triangle, is intended to
alert the user to the presence of uninsulated
“dangerous voltage” within the product's enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
“WARNING”
“TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.”
SAFETY INSTRUCTIONS
Read instructions - All the safety and operating instruc-
1.
tions should be read before the appliance is operated.
Retain instructions - The safety and operating instructions
2.
should be retained for future reference.
Heed warnings - All warnings on the appliance and in the
3.
operating instructions should be adhered to.
Follow instructions - All operating and use instructions
4.
should be followed.
Water and Moisture - The appliance should not be used
5.
near water - for example, near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a
swimming pool, and the like.
Carts and Stands - The appliance should be used only
6.
with a cart or stand that is recommended by the manufacturer.
An appliance and cart combination should be moved with
care. Quick stops, excessive force, and uneven surfaces
may cause the appliance and cart combination to overturn.
Wall or Ceiling Mounting - The appliance should be
7.
mounted to a wall or ceiling only as recommended by the
manufacturer.
Ventilation - The appliance should be situated so that its
8.
location or position does not interfere with its proper ventilation. For example, the appliance should not be situated on a bed, sofa, rug, or similar surface that may block
the ventilation openings; or, placed in a built-in installation, such as a bookcase or cabinet that may impede the
flow of air through the ventilation openings.
ATTENTION:
POUR ÉVITER LES CHOCS ÉLECTRIQUES,
INTRODUIRE LA LAME LA PLUS LARGE DE
LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER
JUSQU' AU FOND.
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and maintenance (servicing) instructions in the literature
accompanying the appliance.
Heat - The appliance should be situated away from heat
9.
sources such as radiators, heat registers, stoves, or other
appliances (including amplifiers) that produce heat.
Power Sources - The appliance should be connected to a
10.
power supply only of the type described in the operating
instructions or as marked on the appliance.
Grounding or Polarization - The precautions that should
11.
be taken so that the grounding or polarization means of
an appliance is not defeated.
Power Cord Protection - Power supply cords should be
12.
routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying
particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance.
Cleaning - The appliance should be cleaned only as rec-
13.
ommended by the manufacturer.
Nonuse Periods - The power cord of the appliance should
14.
be unplugged from the outlet when left unused for a long
period of time.
Object and Liquid Entry - Care should be taken so that
15.
objects do not fall and liquids are not spilled into the enclosure through openings.
Damage requiring Service - The appliance should be ser-
16.
viced by qualified service personnel when:
The power supply cord or the plug has been damaged;
A.
or
Objects have fallen, or liquid has been spilled into the
B.
appliance; or
The appliance has been exposed to rain; or
C.
The appliance does not appear to operate normally or
D.
exhibits a marked changed in performance; or
The appliance has been dropped, or the enclosure
E.
damaged.
Servicing - The user should not attempt to service the ap-
17.
pliance beyond that described in the operating instructions. All other servicing should be referred to qualified
service personnel.
TABLE OF CONTENTS
DE-1
1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. CONTROLS, INDICATORS AND CONNECTORS . . . . . . . . . . . .
3. EXPLODED VIEW, PCB ASSEMBLY AND PARTS LIST . . . . . .
4. CIRCUIT & BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . .
4
5
6
14
NOTES
* Parts List and circuit diagrams are given in this manual to assist the service technician in maintaining the Model DE-1.
* The following accessories are supplied with DE-1 as the standard accessories.
Owner's manual : 8288441100 (for domestic & export model)
Foot assy, S : 8260561000
* Following is the packing material for the Model DE-1.
Packing, L, DE-1 : 8228454000
Packing, R, DE-1 : 8228455000
Carton, inner, DE-1 : 8228729000
CAUTION
Parts marked with this sign are safety critical components. They must always be replaced with identical components.
Refer to the Fostex Parts List and ensure exact replacement.
3
DE-1
1. SPECIFICATIONS
INPUT & OUTPUT
INPUT (x 2)
Connector ∅ 6 mm phone jack / unbalanced
Input level -10 dBV
Impedance 20 kΩ or more
STEREO OUTPUT (L & R)
Connector ∅ 6 mm phone jack / unbalanced
Output level -10 dBV
Impedance 10 kΩ or more
FOOT SWITCH (x 1) ∅ 6 mm phone jack (Optional Model 8051)
OTHERS
Frequency Response + 1, -2 dB at 20 Hz ~ 14.5 kHz
Dynamic Range 86 dB (IHF A)
AD / DA Converter 20-bit
Total Harmonic Distortion 0.1 % at 100 Hz ~ 10 kHz (w / LPF)
Crosstalk 60 dB at 1 kHz
Sampling Frequency 32 kHz
GENERAL
Dimensions 220 (W) × 187 (D) × 43 (H) mm
Weight 1.0 kg (excluding AC adaptor)
Power Requirement
JPN 100 V AC
USA / CND 120 V AC
UK / EUR 230 V AC
Power supply DC 9 V (center: positive), 600 mA
AC Adaptor AD-9B
STANDARD ENVIRONMENT
Standard Temperature 20 ± 2 ºC
Standard Humidity 65 ± 5 %
ENVIRONMENT CONDITION
Characteristics Guaranteed
Temperature + 5 ºC ~ + 40 ºC
Humidity 30 ~ 70 %
AC voltage deviation ± 5 % or less
Operation Guaranteed
Temperature +- 5 ºC ~ + 45 ºC
Humidity 85 % or less
AC voltage deviation ± 10 % or less
* Specifications and appearance are subject to change without notice for product improvement.
4
2. CONTROLS, INDICATORS & CONNECTORS
< Front Panel >
DE-1
EFFECT 1
TYPE
DLY+REV
VOCAL
PLATE MISC
ROOM
S.HALL
L.HALL
VARIATION
DELAY
CHO
PITCH
FLANGE
6
5
4
3
2
11
PEAK
ADJUST
PARAM.1
7
8
9
10
1
4312 65 1097 8 11 12
< DUAL MODE >
1. EFFECT 1 TYPE SW
2. EFFECT 1 VARIATION SW
3. PEAK LED
4. EFFECT 1 ADJUST knob
5. EFFECT 1 MIX knob
6. MODE SW
< SINGLE MODE >
1. TYPE SW
2. VARIATION SW
3. PEAK LED (L channel)
4. PARAM. (PARAMETER) 1 knob
5. MIX knob
6. MODE SW
MIX
DRY+EFF DRY+EFF
MODE
DRY
SINGLE DUAL
EFF
VOCAL
PLATE
ROOM
S.HALL
L.HALL
TYPE
DLY+REV
FLANGE
DELAY
MISC
CHO
PITCH
5
4
3
2
1
VARIATION
6
PEAK
ADJUST
PARAM.2
7
8
9
10
1
1
DRY
_
7. EFFECT 2 TYPE SW
8. EFFECT 2 VARIATION SW
9. PEAK LED
10. EFFECT 2 ADJUST knob
11. EFFECT 2 MIX knob
12. POWER LED
7. Not functioning
8. Not functioning
9. PEAK LED (R channel)
10. PARAM. (PARAMETER) 2 knob
11. PARAM. (PARAMETER) 3 knob
12. POWER LED
EFFECT 2
MIX
PARAM.3
EFF
+
POWER
< Rear Panel >
9V
AD-9B
ONLY
DC IN
13
< DUAL MODE >
13. DC INLET socket
14. Foot SW socket
15. OUTPUT 2 jack sockets
16. OUTPUT 1 jack sockets
< SINGLE MODE >
13. DC INLET socket
14. Foot SW socket
15. Not functioning
16. Not functioning
EFF MUTE
FOOT SW
14
OUTPUT 2
15
L (MONO)R
R
L (MONO)
OUTPUT 1
2
R
DUAL MODE
SINGLE MODE
MAXMIN MIN MAX
INPUT
1 (1&2)
L (MONO)
16 17 18 19
17. INPUT 2 jack socket
18. INPUT 1 (1 & 2) jack socket
19. INPUT LEVEL knobs
17. INPUT L (MONO) jack socket
18. INPUT R jack socket
19. INPUT LEVEL knobs
5
DE-1
3. EXPLODED VIEW, PCB ASSEMBLY AND PARTS LIST
DE-1 OVERALL EXPLODED VIEW & PARTS LIST
Ref. No. Part No. Description
1 8221287000 Panel, front, DE-1
2 8221288000 Panel, top, DE-1
3 8221289000 Chassis, VC-8/DE-1
4 8274207000 PCB assy, Main, DE-1
5 8274208000 PCB assy, DSP, DE-1
6 8221292000 Bracket, volume, DE-1
7 8216700100 Shield, EMI, DE-1
8 8216702000 Sheet, screw, DE-1
9 8226189001 Knob, volume, grey, N
10 8226190001 Knob, volume, green, N
11 8226191001 Knob, volume, blue, N
12 8270818003 AC adaptor, AD-9B, USA/CSA
8270818006 AC adaptor, AD-9B, EUR
8270818007 AC adaptor, AD-9B, UK
8270818010 AC adaptor, AD-9B, JPN
13 8216636101 Cushion, button, FD-4/DE-1
6
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