SPHINX Myth 1 User manual

1.
SERVICE MANUAL
MYTH 1
PREAMPLIFIER
LINE3LINE1CDPHONESVIDEOMUTE
LINE4LINE2TUNERTAPE/MONSTANDBY

SPHINX Myth 1 Service Manual
2
1. UNPACKING.......................................................................................................................................3
2. CONTACTING THE MANUFACTURER.............................................................................................3
3. THE PRE-AMP AT A GLANCE ..........................................................................................................4
Front panel...................................................................................................................................................4
Rear panel ...................................................................................................................................................5
4. OPERATION .......................................................................................................................................6
Power on......................................................................................................................................................6
Selecting an input ........................................................................................................................................6
Adjusting the volume level ...........................................................................................................................6
Temporarily set volume to ‘zero’..................................................................................................................6
Power off......................................................................................................................................................6
5. SPHINX REMOTE CONTROL............................................................................................................7
Buttons.........................................................................................................................................................7
Operation.....................................................................................................................................................8
Selecting without switching..........................................................................................................................8
Batteries.......................................................................................................................................................8
Encountering problems................................................................................................................................8
6. TECHNICAL SPECIFICATIONS.........................................................................................................9
7. ADJUSTMENT PROCEDURES........................................................................................................10
Offset .........................................................................................................................................................10
8. PROBLEMS AND SOLUTIONS .......................................................................................................11
9. DIAGRAMS AND PARTS LISTS......................................................................................................12
General Overview Myth 1...........................................................................................................................13
Power Supply.............................................................................................................................................14
Input / Output.............................................................................................................................................15
Amplifier Left..............................................................................................................................................16
Amplifier Right............................................................................................................................................17
Controller ...................................................................................................................................................18
Keyboard....................................................................................................................................................19
Parts list.....................................................................................................................................................20

SPHINX Myth 1 Service Manual
3
The Sphinx Myth 1 design
This service manual will help you to optimally
service and repair the Sphinx Myth 1 Preamplifier.
This pre-amp uses the newest technologies and
refined designs and is extremely simple to operate.
Designs that successfully have been used in the
award winning Project Eight.
Such as the ultra-linear extremely low-noise
Class-A audio circuits, built from the finest hand-
selected parts.
The signal path is completely balanced from input to
output, and left and right are totally separated.
The power supply is of a unique design (fully Class-
A!) and consists of three completely separate and
independent sections: one for the digital control,
plus one each for the left and right channel.
Input selection is done by means of precision
relays. The ALPS volume control is motor-driven.
To obtain the maximum quality from this power amp
it is necessary to use it with top quality audio
components, preferably with other Sphinx
components.
1. UNPACKING
Before leaving the factory every Myth 1 is subjected
to stringent and extensive technical and exterior
quality inspection.
This ensures you will enjoy many years of high
quality audio from a perfect-looking product.
After unpacking your Myth 1, we therefore
recommend you carefully check it for any transport
damage.
In case of damage: please contact your Sphinx
dealer immediately and retain all packing materials
for possible proof of damage and possible claims.
Even if the component is in perfect condition you
should still keep the packing materials. If you need
to transport your Myth 1 at a later time it will be best
protected by the original packing materials.
2. CONTACTING THE MANUFACTURER
In case of any problem not covered in this manual
or if you have other questions you may contact the
Sphinx International Service Department in The
Netherlands (local time: GMT +1h) during office
hours at the following numbers:
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
It is always very helpful and efficient if you have all
relevant information about the specific product and
the problem ready.
Please also refer to the User Manual of the
Myth 1 for information about functions not
described in this manual.
It is important to familiarise yourself with the
special functions, operation and possibilities
of the Sphinx Myth 1.

SPHINX Myth 1 Service Manual
4
3. THE PRE-AMP AT A GLANCE
Front panel
1
1. CD: To select the CD input. The red LED will
light.
2. LINE 1: To select the Line 1 input. The red LED
will light.
3. LINE 3: To select the Line 3 input. The red LED
will light.
4. VIDEO: To select the Video line input. The red
LED will light.
5. MUTE: Press this button to temporarily mute the
sound. The red LED will light.
6. PHONES: To connect dynamic stereo
headphones.
7. TUNER: To select the Tuner input. The red LED
will light.
8. LINE 2: To select the Line 2 input. The red LED
will light.
9. LINE 4: To select the Line 4 input. The red LED
will light.
10. TAPE / MON: To select the TAPE IN input. The
red LED will light.
11.STANDBY: To switch the component on and off:
on LED is off
off LED is red
12.Receptor window for the IR signals from the
Remote Control.
13. VOLUME: This rotary knob adjusts the volume
level.
LINE3LINE1CDPHONESVIDEOMUTE
LINE4LINE2TUNERTAPE/MON STANDBY
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3

SPHINX Myth 1 Service Manual
5
Rear panel
1. TUNER: To connect the signal cable from the
tuner.
2. CD: To connect the signal cable from the CD
player.
3. TAPE OUT:Connect this output to the input of
the recorder.
4. TAPE IN: Connect this input to the output of the
recorder.
5. LINE 4: To connect the signal cable from the
signal source for LINE 4.
6. LINE 3: To connect the signal cable from the
signal source for LINE 3.
7. LINE 2: To connect the signal cable from the
signal source for LINE 2.
8. LINE 1: To connect the signal cable from the
signal source for LINE 1.
9. VIDEO: To connect the signal cable from the
audio output of the video source.
10. Control Out: To connect the optical cable(s) to
other Sphinx component(s).
11. OUT 1 /2 L+R: Connect this output with a signal
cable to the input of your power amp.
12. Manufacturer’s label: This shows important
data for the component, such as serial number
and mains power voltage.
13. Warning!: This shows important information
about the safety regulations for the Myth 1.
14. AC Power: Connect the mains cable to a mains
power outlet (100 - 240 VAC).
The mains fuse is placed behind the cover.
Here you also find the mains power switch O / I.
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4

SPHINX Myth 1 Service Manual
6
4. OPERATION
Connect the mains cable to a mains outlet.
Once you have finished connecting all components,
you can power on the Myth 1 with the mains switch
O / I (14) .
The volume control will then automatically turn
counter-clockwise and for a while the STANDBY
LED will blink red, after which it will remain red. The
pre-amp is now in standby mode.
From now on you should switch the amp on or off
with the STANDBY button (11).
That way, all circuits will remain at optimum
operating temperatures and the audio quality will be
100% immediately after switching on. Additionally it
significantly increases the life span of the
component.
The Myth 1 is now in stand-by mode.
Power on
Switch the Myth 1 on with the STANDBY button.
The pre-amp will select the CD input after which it
un-mutes the output.
Selecting an input
You may select an input with one of the buttons 1. to
9.: the LED will illuminate.
The new input becomes active after you have
selected it. You will hear a 'click'. This is caused by
the precision relays for the inputs: the 'old' one is
released while the new one is energised.
Adjusting the volume level
The large VOLUME control to the right adjusts the
volume level from OFF to maximum (fully clockwise).
The level change is immediate.
Temporarily set volume to ‘zero’
Press the MUTE button (5) temporarily mutes the
sound. The red LED will light. Another press on this
button un-mutes the output.
Power off
You switch the Myth 1 off (to stand-by) with the
STANDBY button (11).

SPHINX Myth 1 Service Manual
7
5. SPHINX REMOTE CONTROL
This single Sphinx Remote Control lets you control
all functions: not only of the Myth 1, but of all other
Sphinx equipment.
Only the following buttons and indications on the
Remote apply to the Myth 1 (the others will not
function):
Buttons
1. PRE-AMP: To select the amp. All buttons
pressed hereafter will control only the pre-amp
functions.
The buttons TUNER and CD will have no effect.
2. STANDBY: Use this red button to switch the
Myth 1 to stand-by.
3. : Pressing this green button mutes the
outputs (temporarily) and you will not hear any
sound. The red LED will be illuminated. Another
press on this button un-mutes the outputs
4. TAPE/MONITOR: Use this button to select the
Tape IN input. Pressing this button has the
same effect as pressing the TAPE/MON button
(9) on the front panel.
Note: The LED of the selected input (see 5.) will
remain illuminated.
5. 1 - 7: To select inputs CD to VIDEO (Note: 8 to
0 do not function):
1CD CD input
2TUNER Tuner
3LINE 1 Line input 1
4LINE 2 Line input 2
5LINE 3 Line input 3
6LINE 4 Line input 3
7Video Audio from video source
6. ñbutton: Pressing this button has the same
effect as rotating the VOLUME control on the
front panel clockwise. You increase the volume.
7. òbutton: Pressing this button has the same
effect as rotating the VOLUME control on the
front panel anti-clockwise. You decrease the
volume.

SPHINX Myth 1 Service Manual
8
Operation
The Sphinx Remote is used with several different
models and can therefore transmit different control
codes, depending on which model has been
selected with the select buttons (1).
Important: Always press the PRE-AMP button
before you send a command (even if you only have
one Sphinx component).
Otherwise it is possible that, although the Remote
sends a signal, nothing happens because the
transmitted signal is not 'recognised' by the
component.
Indoors the Remote may be used up to a distance
of 7 meter, provided there is no strong sunlight in
the room and if you aim the Remote at the
component.
Always aim the Remote straight at the front panel of
the component, the maximum offset angle is 30°.
Selecting without switching
Suppose, for instance, that you would like to select
the Tuner to Radio 4 without interrupting CD
playback.
In that case you momentarily depress (not longer
than 0.5 sec) the TUNER button and the '4' button.
The same procedure is used for the other system
components.
How to operate the Remote Control with the
different Sphinx components will be explained in the
corresponding User Manual of each component.
Batteries
The four batteries have a life span of approximately
one year during normal use, but shorter when used
more intensely.
Replacement batteries: 1.5 V, model micro or
penlite or LR03 or AAA or AM4 (one of these codes
is indicated on the packaging and the batteries).
You may also use rechargeable 1.5 V batteries.
Note: Position the new batteries exactly as shown in
the illustration at the bottom of the battery
compartment, otherwise the Remote will not
function!
Encountering problems...
Remote Control does not work
Wrong component selected Select the correct one
Distance to component
exceeds 7 m Use Remote at closer range
Angle between Remote and
component exceeds ±30° Decrease angle
Sensor window on front dirty Clean window
Batteries empty or incorrectly
placed Use new batteries or replace the old ones
correctly
Strong (sun)light in room Shade off light source
Component is not switched on
(!) Switch it on
Component reacts differently than expected or
not at all
Wrong component selected Select the correct one
Component or Remote does
not function Check component with its original remote
Batteries in Remote empty Use new batteries

SPHINX Myth 1 Service Manual
9
6. TECHNICAL SPECIFICATIONS
Bandwidth 0 – 111,000 Hz (+0/-3 dB)
Phase response error <0.5°
Gain 9.5 dB max.
THD+N (IHF-A) <0.020 / 0.002% (2nd harm., 10 - 20,000 Hz)
IMD <0.003%
S/N ratio (IHF-A) >84 / 100dB
Channel separation >98 dB
Slew Rate > 24 V/µs
Inputs 8x cinch (gold-plated)
Level, nominal (for 1 V output) 0.13 V (-18 dBV)
impedance 47 kohm
Outputs 2x cinch Out 1, Out 2 (gold-plated)
1x cinch Tape (gold-plated)
level 10.5 V max. (20.42 dBV) (1 - 100,000 Hz, THD <0.002%)
impedance <10 ohm
Volume control ALPS motorised
channel imbalance less than 2 dB
Sphinx Control 2x optical
Remote control Full function
Power supply Internal, completely stabilised
Supply capacitance 16,280 µF total
Power consumption 11 W (9 W stand-by)
Dimensions (h x w x d) 75 x 434 x 350 mm
Weight 7 kg
This unit conforms to the EMC interference regulations issued by the EU and to the CE standards.
This unit complies with safety regulation VDE 0860 and therefore with international safety regulation IEC 65.
Technical specifications may be changed by SPHINX without prior notice if technical developments make this
necessary.
©1999 Audioscript BV

SPHINX Myth 1 Service Manual
10
7. ADJUSTMENT PROCEDURES
The Myth 1 only has one parameters for each
channel (so two in total) that might need
adjustment:
-Offset: to set the DC-offset voltage of the
output.
These adjustments might be necessary when the
amplifier has been used for a period of time (and
settings have changed due to ageing) or when parts
of the Myth 1 have been replaced.
Offset
The Offset adjustment procedure minimises the DC
offset value of the amplifier output.
•Switch the amplifier ON and wait until it has
reached the proper working temperature.
•Set the millivolt-meter to the DC-range.
•Place the measurement clips of the meter over
the output.
•The level should not exceed +1 or -1 mV DC.
If it does: adjust potmeter P2L (Left) or P2R
(Right) until the level is within this range.
•Repeat this procedure after 20 minutes to
finalise the adjustment.
•Switch the oscillator on and set it to 1 kHz and a
level of 0 dBV (1 V).
•Check the distortion with a THD analyser: it
should be conform to the specified value
(0.002% IHF-A @ 1 – 20 kHz).
If this is correct the procedure is finished.
•You may now switch off the amplifier

SPHINX Myth 1 Service Manual
11
8. PROBLEMS AND SOLUTIONS
At the moment of writing the Myth 3 has no known
specific problems.
If in the future you encounter any problem(s) you
may enter the info in this table. This table can then
be used for future reference.
Please also send (by fax or e-mail) the specific
information to the Sphinx International Service
Department (see page 3): this info can then be
added to the general database to aid others.
Problem Cause Solution Refer to
page…
Bandwidth ≈100 kHz Value of C2L, C2R too large
(220 pF) Change C2L, C2R value to 47 pF 16/17

SPHINX Myth 1 Service Manual
12
9. DIAGRAMS AND PARTS LISTS
The next pages contain the front and rear panel lay-
out and a complete set of schematic drawings
including the associated parts lists (if applicable).

SPHINX Myth 1 Service Manual
13
General Overview Myth 1
LINE-OR LINE-OL
MOTOR1
MOTOR2
TO-AMPLTO-AMPR
Myth 1 input / outputm1-io.sch
LINE-OR LINE-OL
MOTOR1
MOTOR2
TO-AMPLTO-AMPR TO-AMPL
LINE-OL
-26V
+26V
Myth 1 left channelm1-ampl.sch
TO-AMPL
LINE-OL
-26V
+26V
-26V
+26V
Myth 1 powersupplym1-ps.sch
-26V
+26V
ANA1
ANA2
LEDS
OUTP
Myth 1 controlm1-ctrl.sch
ANA1
ANA2
LEDS
OUTP
TO-AMPR
LINE-OR
+26V
-26V
Myth 1 right channelm1-ampr.sch
TO-AMPR
LINE-OR
+26V
-26V
ANA1
ANA2
LEDS
OUTP
Myth 1 keyboardm1-keyb.sch
ANA1
ANA2
LEDS
OUTP
P1A
2 X 20K
Volume control

SPHINX Myth 1 Service Manual
14
Power Supply
C28
100N
C25
100N
C26
100N
C27
100N
C30
100N
C29
100N
C46
100N
C45
100N
C32
100N
C33
100N
C34
100N
C37
100N
D22
1N4007
D23
1N4007
D24
1N4007
D25
1N4007
D27
1N4007
D26
1N4007
+
C31
2200U/63V
+C38 2200U/63V
VoutVin
GND
U1 7818
DGND
+18V
+26V
-26V
D28
1N4007
D29
1N4007
D30
1N4007
D31
1N4007
+5V_OUT
GR BLU
BLA
WI
RE/BR
PR2
PR3
PR4
PR1
KAST2ES4
VI2
VI1
SW1A
115_230
SW1B
115_230
E$23
E$22
KAST1
C51
100N
MOTOCHAS
MOTOR2
MOTOR1

SPHINX Myth 1 Service Manual
15
Input / Output
R42L
1M
R42R
1M R43R 1M
R43L
1M
R44R
1M
R44L
1M
R47R
475R
R45L
1M
R45R
1M
R28L
47R
R41L
1M
R40R
1M
R40L
1M R46L 1M
R41R
1M
R28R
47R
R47L
475R
R46R
1M R48R 1M
R27R
47R
R27L
47R
R48L
1M
L2/L1A L2/L1B TUNER/CD1A
LINE_OUTA
TUNER/CD1B
LINE_OUTB
U$14.1A U$14.2A TAPE1BTAPE1A CN1
AGND
+
REL1
MT2-24V
+
REL2
MT2-24V
+
REL3
MT2-24V
+
REL4
MT2-24V
+
REL7
MT2-24V
+
REL8
MT2-24V
+
REL5
MT2-24V
+
REL6
MT2-24V
+
REL10
MT2-24V
LINE2 LINE1 TUNER CD LINE4 LINE3 VIDEO TAPEINTAPEOUT
TO-AMPL
TO-AMPR
R29L
1M R29R 1M
AGND
AGND
AGND
LINE-OR
LINE-OL
R26R
4R99
R26L
4R99
HPR
HPL
D8 1N4148 D9 1N4148 D10 1N4148 D11 1N4148 D6 1N4148 D13 1N4148 D5 1N4148 D12 1N4148
D15
1N4148
C24
220N
R25
1M
AGND R71
2K7 R72 2K7
OPTO1
AMP_PHDIOD
OPTO2
AMP_PHDIOD
+18V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
CN2
HD-26
HPR
HPL
HPGND
HPGND
+12V
+12V
+18V
+18V
GND
GND
GND
RL3
RL4
RL1
RL2
RCD
RTU
RVIDEO
RTAPE
OPTOOUT
RELCOM
RLINEOUT
OPTOOUT
MOTOR2
MOTOR1
L2 L1 TUNER CD L4 L3 VIDEO TAPE
LINEOUT

SPHINX Myth 1 Service Manual
16
Amplifier Left
R1L
475R
C2L 10U
C1L
120P
R22L
10K0
R2L
475R
R3L
47K
R19L
475R
R70L
2R2
R69L
2R2
R68L
4K75
R67L
4K75
R21L
4R99
R20L
4R99
R15L
2K2
R11L
47K
R9L
475R
R4L
4K7
R5L
4K7
R7L
475R R17L 2K2
R18L
475R
R12L
47K
R16L
2K2
R14L
2K2
R10L
47K
R8L
475R
R6L
475R
Q13L
A872
Q6L
A872 Q7L A872
Q4L
A872
Q10L
C1775 Q11L C1775
C10L
1U
Q1L
K389
Q12L
J109
AGND
R13L
47K
C11L
1U
AGND
Q2L
C1775
D7L
LD
D3L
LD
D4L
LD
D2L
LD
D1L
LD
C8L
100N
C9L
100N
AGND
+2V
-2V
C6L
100N
C7L
100N
C5L
100N
C4L
100N
C14L
100N
C15L
100N
Q3L
C1775
C21L
100N
C20L
33P
Q5L
A1668
Q14L
C4382
AGND
AGNDAGND
AGND
FB
LINE-OL
Q32L
BD679
Q29L
BD680
D16L
ZF20
D17L
ZF20
+
C35L
10U/100V
+
C36L
10U/100V
+
C42L
C63V/10U
+
C44L
C63V/10U
+
C43L
C63V/10U
+
C41L
C63V/10U
D19L
1N4148
D18L
1N4148
AGND
AGND
AGND
AGND
+26V
-26V
C3L
220P
AGND
TO-AMPL
AGND
+
C40L
2200U/63V
+
C17L
470U
+
C19L
470U
+
C39L
2000U/63V
+
C16L
470U
+
C18L
470U
AGND
AGND
AGND
AGND
+
C23L
470U
R23L
4K75
C22L
1U
AGND
P1LB
20K
P2L
10K
R24L
1M
+2V
-2V
FB
C13L
nvt
C12L
nvt

SPHINX Myth 1 Service Manual
17
Amplifier Right
R1R
475R
C2R 10U
C1R
120P R22R
10K0
R2R
475R
R3R
47K
R19R
475R
R70R
2R2
R69R
2R2
R68R
4K75
R67R
4K75
R21R
4R99
R20R
4R99
R15R
2K2
R11R
47K
R9R
475R
R4R
4K7
R5R
4K7
R7R
475R R17R 2K2
R18R
475R
R12R
47K
R16R
2K2
R14R
2K2
R10R
47K
R8R
475R
R6R
475R
Q13R
A872
Q6R
A872 Q7R A872
Q4R
A872
Q10R
C1775 Q11R C1775
C10R
1U
Q1R
K389
Q12R
J109
AGND
R13R
47K
C11R
1U
AGND
Q2R
C1775
D7R
LD
D3R
LD
D4R
LD
D2R
LD
D1R
LD
C8R
100N
C9R
100N
AGND
+2V
-2V
C6R
100N
C7R
100N
C5R
100N
C4R
100N
C14R
100N
C15R
100N
Q3R
C1775
C21R
100N
C20R
33P
Q5R
A1668
Q14R
C4382
AGND
AGNDAGND
AGND
FB
LINE-OR
Q32R
BD679
Q29R
BD680
D16R
ZF20
D17R
ZF20
+
C35R
10U/100V
+
C36R
10U/100V
+
C42R
C63V/10U
+
C44R
C63V/10U
+
C43R
C63V/10U
+
C41R
C63V/10U
D19R
1N4148
D18R
1N4148
AGND
AGND
AGND
AGND
+26V
-26V
C3R
220P
AGND
TO-AMPR
AGND
+C40R
2200U/63V
+
C17R
470U
+
C19R
470U
+C39R
2000U/63V
+
C16R
470U
+
C18R
470U
AGND
AGND
AGND
AGND
+
C23R
470U
R23R
4K75
C22R
1U
AGND
P1RB
20K
P2R
10K
R24R
1M
+2V
-2V
FB
C13R
nvt
C12R
nvt

SPHINX Myth 1 Service Manual
18
Controller
R25
2K2 R26 2K2
R34
2K2
R28
2K2
R37
2K2
R35
5K6
R36
1K
R33
2K2
R39
2K2
R38
2K2
R31
2K2 R32 2K2
R30
2K2
R27
3R9
R29
2K2
Q6
BC807
Q7
BC807
Q4
BC817 Q5 BC817
M1 M2
GND
+5V
MOTOR1
MOTOR2
+
C1
470U/16V
C2
100N
VoutVin
GND
U1 7805
+
C3
1U
C4
100N
C5
100N
DGND
MR
VCC
GND
PFI PFO
WDI
RES
WDO
U2
ADM705
C7
100N
Q2
BCV47
Q3
BC807
RESET
DGND
+5V
+12V
+5V+12V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
CN1
HD-26
HPH_L
HPH_R
HPH_COM
+24V
+12V
DGND
MOTOR1
OUT
MOTOR2
OUT_L4
OUT_L2
OUT_TU
T1_1
T2_1
OUT_REL4
T2_2
T1_2
OUT_CD
OUT_L1
OUT_L3
X1
X2
P17
P16
P15
P14
P13
AVCC
AVSS
P37
P12
P00
P01
RES
VSS
VCC
P11
P10 P34
P35
P36
P31
P32
P33
P02
P03
P04
P30
U3
87C752
Q1
8MHz
C9
100N
+5V DGND
RESET
M1
M2
DGND WD
UNDVT
+
C12
1U
DGND
UNDVT
WD
K2
K4
K3
K1
K5
K6
K7
K8
C13
680P
C14
680P
C15
680P
C16
680P
DGND
V+ 2
D1
GND 3
IR
IR1
SFH506
DGND
+5V
ANA2
ANA1
LED1
LED2
LED3
LED4
LED5
LEDS
C2
12 EN3
9
515
R
8
C1
13
1D
3
Vcc 2
SER OUT
18 717
616
20
37
26
15
04
414
19
1
10 GND 11
U4
TPIC6595
C2
12 EN3
9
515
R
8
C1
13
1D
3
Vcc 2
SER OUT
18 717
616
20
37
26
15
04
414
19
1
10 GND 11
U5
TPIC6595
DGND
C11
100N
+5V
DGND
DGND
C10
100N
+5V
DGND
OUT
OUT_L3
OUT_L4
OUT_L1
OUT_L2
OUT_CD
OUT_TU
T1_2
T1_1
T2_2
T2_1
OUT_REL4

SPHINX Myth 1 Service Manual
19
Keyboard
R1
1K R2
220R
R3
220R
R4
220R
R5
330R
R6
470R
R7
1K R8
220R
R9
220R
R10
220R
R11
330R
R12
470R
R13
390R R14 390R R15 390R R16 390R R17 390R R18 390R R19 390R R20 390R R21 390R R22 390R R23 390R R24 390R
S1A S1B S2A S2B S3A S4A S5A S5B S4B S3B S7A S7B S8A S8B S9A S10A S11A S11B S10B S9B S6A S6B S12A S12B
+5V+5V
D1
LD
D2
LD
D3
LD
D4
LD
D5
LD
D6
LD
D7
LD
D8
LD
D9
LD
D10
LD
D11
LD
D12
LD
LED1 LED2 LED3 LED4 LED5 LED6 OUT_CD OUT_TU OUT_L1 OUT_L2 OUT_L3 OUT_L4
+5V +5V
DGND DGND
ANA2ANA1
LEDS OUTP

SPHINX Myth 1 Service Manual
20
Parts list
Designator Part Type Description
C1 470U/16V Electrolitic capacitor
C10 100N MKT capacitor
C10L 1U MKT capacitor
C10R 1U MKT capacitor
C11 100N MKT capacitor
C11L 1U MKT capacitor
C11R 1U MKT capacitor
C12 1U Electrolitic capacitor
C12L nvt MKT capacitor
C12R nvt MKT capacitor
C13 680P MKT capacitor
C13L nvt MKT capacitor
C13R nvt MKT capacitor
C14 680P MKT capacitor
C14L 100N MKT capacitor
C14R 100N MKT capacitor
C15 680P MKT capacitor
C15L 100N MKT capacitor
C15R 100N MKT capacitor
C16 680P MKT capacitor
C16L 470U Electrolitic capacitor
C16R 470U Electrolitic capacitor
C17L 470U Electrolitic capacitor
C17R 470U Electrolitic capacitor
C18L 470U Electrolitic capacitor
C18R 470U Electrolitic capacitor
C19L 470U Electrolitic capacitor
C19R 470U Electrolitic capacitor
C1L 120P MKT capacitor
C1R 120P MKT capacitor
C2 100N MKT capacitor
C20L 33P MKT capacitor
C20R 33P MKT capacitor
C21L 100N MKT capacitor
C21R 100N MKT capacitor
C22L 1U MKT capacitor
C22R 1U MKT capacitor
C23L 470U Electrolitic capacitor
C23R 470U Electrolitic capacitor
C24 220N MKT capacitor
C25 100N MKT capacitor
C26 100N MKT capacitor
C27 100N MKT capacitor
C28 100N MKT capacitor
C29 100N MKT capacitor
C2L 10U MKT capacitor
C2R 10U MKT capacitor
C3 1U Electrolitic capacitor