SPHINX Myth3 Service Manual

1.
SERVICE MANUAL
MYTH 3
INTEGRATED
STEREO AMPLIFIER
SPHINX Myth 3 Service Manual
1. UNPACKING.......................................................................................................................................3
2. CONTACTING THE MANUFACTURER.............................................................................................3
3. THE AMP AT A GLANCE...................................................................................................................4
Front panel................................................................................................................................................... 4
Rear panel ...................................................................................................................................................5
4. OPERATION .......................................................................................................................................6
Power on...................................................................................................................................................... 6
Selecting an input ........................................................................................................................................6
Tape button.................................................................................................................................................. 6
Adjusting the volume....................................................................................................................................6
Standby button............................................................................................................................................. 6
Power off...................................................................................................................................................... 6
Amplifier switches to Protection Mode... ...................................................................................................... 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
Bias............................................................................................................................................................10
Offset ......................................................................................................................................................... 10
8. PROBLEMS AND SOLUTIONS .......................................................................................................11
9. DIAGRAMS AND PARTS LISTS ......................................................................................................12
Measurement Set-up .................................................................................................................................13
General Overview Myth 3...........................................................................................................................14
Schematic Diagram Power Supply.............................................................................................................15
Schematic Diagram Input / Output.............................................................................................................16
Schematic Diagram Amplifier Left .............................................................................................................. 17
Schematic Diagram Amplifier Left .............................................................................................................. 18
Schematic Diagram keyboard....................................................................................................................19
Schematic Diagram control........................................................................................................................20
Parts List....................................................................................................................................................21
SPHINX Myth 3 Service Manual
The Sphinx Myth 3 design
This service manual will help you to optimally service and repair the Sphinx Myth 3 Integrated Stereo Amplifier
This integrated high-end stereo amplifier is of discrete design throughout (no IC's are used). The Myth 3 uses a passive pre-amp. The power amp uses specially selected power FETs with a power bandwidth of over 20 MHz, a very fast slew rate and an unsurpassed phase linearity over the power bandwidth. Each channel uses two 120W/10A FETs and operates as a pure ‘current source’ with a very low impedance. The amplifiers are therefore very stable and can effortlessly drive every type and format of loudspeaker at maximum quality (even the most complex ones, such as electrostatic and magnetostatic...). The amp outputs are sent to the loudspeaker connectors via heavy duty, completely gold-plated relays.
To obtain the maximum quality from this integrated 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 3 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 3 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 3 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: (+31) 35 602 0302 Fax: (+31) 35 602 2806 E-mail: audionl@euronet.nl
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 3 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 3.
SPHINX Myth 3 Service Manual
3. THE AMP AT A GLANCE
Front panel
1. PHONES: To connect dynamic stereo headphones.
2. CD: To select the CD input.
3. TUNER: To select the TUNER input.
4. LINE 1: To select the LINE 1 input.
5. LINE 2: To select the LINE 2 input.
6. TAPE: To select the TAPE IN input. As soon as you have pressed one of the buttons
2. to 6. the corresponding red LED next to it will light.
7. STANDBY: To switch the component on and off. When the component is 'off' (standby) this is indicated by the red LED.
8. Sensor window for the IR signal from the Remote Control.
9. VOLUME: With this motor-controlled knob you may adjust the volume of the loudspeakers. The volume can be controlled manually or via the Remote Control.
SPHINX Myth 3 Service Manual
Rear panel
10. LINE 2: To connect the cinch signal cable from the signal source for LINE 2.
11. LINE 1: To connect the cinch signal cable from the signal source for LINE 1.
12. TUNER: To connect the cinch signal cable from the tuner.
13. CD: To connect the cinch signal cable from the CD player.
14. TAPE OUT: Connect this output to the Input of the recorder.
15. TAPE IN: Connect this input to the output of the recorder.
16. RIGHT OUTPUT: To connect the cable from the right loudspeaker: red + black -
17. LEFT OUTPUT: To connect the cable from the left loudspeaker: red + black -
18. Manufacturer’s label: This shows important data for the component, such as serial number and mains power voltage.
19. AC Power: Connect the mains cable to a mains power outlet (100 - 240 VAC).
20. Fuse holder: Contains a 3.15 A slow type fuse.
21. ON/OFF: This is the mains power switch.
10
11
12
13 14 15 16 17
18
19 21
20
SPHINX Myth 3 Service Manual
4. OPERATION
Once you have finished connecting all components, you can switch on the Myth 3.
Connect the mains cable to a mains outlet. Turn the volume control to 'off' (fully counter­clockwise).
Power on
Switch the Myth 3 on with the ON/OFF switch (21) on the rear panel. The red LED next to the STANDBY button will blink. After a few seconds the CD input is selected: the red LED next to CD (2) will light.
The Myth 3 is now switched on and ready for use. You can leave the amp on. That way all circuits will
remain at optimum operating temperature and the audio quality will be 100% immediately after switching on. Additionally it significantly increases the life span of the component. Only if the amp will not be used for a longer period you might switch it off with the ON/OFF switch (21) to save energy.
Selecting an input
Select the input with one of the buttons 2. to 6. As soon as you have selected an input, the red LED next to the button will light.
CD : To select the CD input. TUNER : To select the TUNER input. LINE 1 : To select the LINE 1 input. LINE 2 : To select the LINE 2 input.
Tape button
Pressing the TAPE button in the front panel (6) selects the TAPE IN input. After you press PLAY on the recorder you will hear the recorded signal.
If you record a tape this button lets you compare the input signal (as selected with button 2., 3., 4. or 5) to the signal from the recorder: IN (LED red) signal from tape OUT (LED off) signal from selected input
When using a 3-head recorder you can therefore compare the original signal with the actual recorded signal (you'll hear the 'off-tape' signal which might be slightly delayed).
Adjusting the volume
Using the large VOLUME control (9) you can adjust the sound level from the loudspeakers. This volume control is motor-controlled. If you adjust the volume on the Remote Control the knob will turn automatically. The position of the knob always correctly indicates the set volume.
Standby button
The STANDBY button (7) temporarily mutes the sound from the loudspeakers: the red LED will light. Another press on the button un-mutes the sound, the LED extinguishes. You may also use this button when you listen on headphones and would like to switch the loudspeakers off. The Mute function has no influence on the signal to the headphones. This function can also be controlled using the Remote Control.
Power off
Switch the Myth 3 temporarily off (to stand-by) with the STANDBY button (7). When the Myth 3 will not be used for a longer period, you may switch it off completely with the ON/OFF switch (21).
Amplifier switches to Protection Mode...
Indication: the Standby LED blinks rapidly and the volume control turns automatically to “zero” (fully counter clockwise).
Note: Switch power off with the ON/OFF switch (21) and wait for at least 60 seconds. In the mean time, check all loudspeaker cables for shorted wires! If you find any, remove the short-circuit to insure fault-free connection.
Now switch the power on with the ON/OFF switch. If the amplifier itself is not defective, it will operate normally again after 30 seconds.
SPHINX Myth 3 Service Manual
5. SPHINX REMOTE CONTROL
This single Sphinx Remote Control allows you to control all functions: not only of the Myth 3, but of all other Sphinx equipment.
Only the following buttons and indications on the Remote apply to the Myth 3 (the others will not function):
Buttons
1. PRE-AMP: To select the amp. All buttons pressed hereafter will control only the amp functions.
2. STANDBY: Use this red button to switch the loudspeaker outputs of the Myth 3 off (standby).
3. 1 - 4: To select inputs CD to Line 2 (Note: 5 to 0 do not function): 1 CD 2 Tuner 3 Line 1 4 Line 2
4. TAPE/MONITOR: Use this button to select the Tape IN input.
5. + button: Pressing this button has the same effect as rotating the VOLUME control on the front panel clockwise. You increase the volume.
6. button: Pressing this button has the same effect as rotating the VOLUME control on the front panel anti-clockwise. You decrease the volume.
SPHINX Myth 3 Service Manual
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 will send 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 3 Service Manual
6. TECHNICAL SPECIFICATIONS
Bandwidth 10 - 103,000 Hz (+0/-3 dB) Phase response error <2° (from 0 - 20,000 Hz) Gain 33 dB max. (44.7 times) Minimum Power Output (1 - 20.000 Hz)
>2x 50 W into 8 (17.0 dBW), THD <0.01% >2x 68 W into 4 (18.3 dBW), THD <0.02%
>2x 66 W into 2 (18.2 dBW), THD <0.01%3 Output voltage / current, max. 20 V / 10 A THD+N (IHF-A) <0.006% (2nd harm., 10-20,000 Hz) IMD <0.030% S/N ratio (IHF-A) >100 dB Channel separation >70 dB (1 - 20,000 Hz) Slew rate >24 V/µs Damping factor >525 (1 - 1,000 Hz)
Inputs cinch, unbalanced 1x Line 2, 1x Line 1, 1x CD, 1x Tuner, 1x Tape level, nominal 1.25 V impedance
20 k Outputs
cinch 1x Tape headphones 1x 6.3 mm stereo jack, adjustable level clamp 1x loudspeaker L, 1x loudspeaker R
Supply capacitance 18,800 µF total Power consumption 550 W max. (57.5 W standby) Dimensions (h x w x d) 110 x 434 x 330 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 3 Service Manual
10
7. ADJUSTMENT PROCEDURES
The Myth 3 is an integrated amplifier, meaning the pre-amp and power amp sections are combined into one cabinet. The Myth 3 only has two parameters for each channel (so four in total) that might need adjustment:
- Bias: to set the bias current and bias voltage of the amplifier for normal use.
- 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 a part of the Myth 3 have been replaced.
Attention:
When re-adjusting any setting please ensure that there is no loudspeaker connected to the output! Otherwise the loudspeaker may be seriously damaged.
Attention:
The amplifier is able to generate high output voltages of over + or -40 V. Please be very careful during the adjustments!
Bias
With this procedure you set the proper bias level for the power FETs. This ensures their Class A operation at low power levels. Connect the amplifier according to the drawing “Measurement Set-up” (page 13). The input of the amplifier must be shorted (by way of the MUTE function of the oscillator).
Switch the amplifier ON and wait until it has
reached the proper working temperature
Set the millivolt-meter to the DC-range.
Place the two measuring clips of the meter
across one of the source resistors Left: R30L, R31L Right: R30R, R31R (refer to schematic on page 17/18).
The level for each should be 8 mV DC (±2 mV).
If not: adjust potmeter P2L (Left) or potmeter P2R (Right) until the level is 8 mV.
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 (0.01% IHF-A @ 1 – 20 kHz @ 50 W into 8 ohm). If this is correct the procedure is finished.
You may now switch off the amplifier or continue
with another adjustment procedure.
Offset
The Offset adjustment procedure minimises the DC offset value of the amplifier output. This DC offset is important when capacitive loads are used, such as electrostatic loudspeakers. These loudspeakers often use a very low-impedance step-up transformer. The amplifier ‘sees’ this load as a short for the DC voltage. Connect the amplifier according to the drawing “Measurement Set-up” (page 13). The input of the amplifier must be shorted (by way of the MUTE function of the oscillator).
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 terminal.
The level should not exceed +1 or -1 mV DC. If it does: adjust potmeter P1L (Left) or P1R (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 (0.01% IHF-A @ 1 – 20 kHz @ 50 W into 8 ohm). If this is correct the procedure is finished.
You may now switch off the amplifier or continue with another adjustment procedure.
SPHINX Myth 3 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 47pF17/18
SPHINX Myth 3 Service Manual
12
9. DIAGRAMS AND PARTS LISTS
The next pages contain the front and rear panel lay­out and a complete set of schematic drawings including the associated parts lists (if applicable).
SPHINX Myth 3 Service Manual
13
Measurement Set-up
+
GND
+
GND
Left
Right
B?
MYTH 3
out1 out2
inp2
inp1
gnd
THD
Amplitude
Frequency
Oscillator
THD out
(+) (-) (+) (-)
x
y
inp2
time/div
inp1
gnd
out1 out2
inp2inp1
Scoop
SWITCH-BOX
mVmV
8R
8R
GND
GND
GND
GND
SPHINX Myth 3 Service Manual
14
General Overview Myth 3
Myth 3 power supply M3-ps.sch
Myth 3 keyboard m3-keyb.sch
Myth 3 control m3-ctrl.sch
SPHINX Myth 3 Service Manual
15
Schematic Diagram Power Supply
ACINP2
EARTH
ACINP1
SW1A 115_230
SW1B 115_230
NTC1
2.5E/8A
C1
220N
C3
220N
C2
220N
C4
220N
D3 SB356
ACS1
ACS4
ACS2 ACS3
+
C5
4700U/50V
+
C6
4700U/50V
+
C7
4700U/50V
+
C8
4700U/50V
GND
GND
+V
-V
Q1 BD679
D2
ZF24V
R2 10K
R1 56R/2W
D1
1N4148
+
C10
10U
+V
+24V
+24VOUT
GNDOUT
SPHINX Myth 3 Service Manual
16
Schematic Diagram Input / Output
R53 4k75
R42R 475R
R41R 475R
R41L 475R
R52 4k75
R42L 475R
R51 10k
L2/L1A L2/L1B TUNER/CDA TUER/CDB TAPEA TAPEB
+
REL1 REL16
+
REL2 REL16
+
REL3 REL16
+
REL4 REL16
+
REL5 REL16
LINE2 LINE1 TUNER CD TAPE OUT TAPE IN
D8
1N4148
D9
1N4148
D10
1N4148
D11
1N4148
D12
1N4148
+24V
C21R
10U/100V
C21L
10U/100V
C20R
120P
C20L
120P
AGND AGND
Q17 C2240
D17
1N4148
IC1R CNY17-D
IC1L CNY17-D
REL6RLA RA451024
+24V
AGND
9 10 7 8 643
PM3PM4 PM1PM2
5
2
P1.2
ALPS 20K
P1.1
ALPS 20K
R2 475R
R1 475R
L_O
R_O
R-I
L_ILGI
RGI
LGO
RGO
R11KR2
1K
R3 1K
R6 1K
R5 1K
R4 1K
ORANJE RIGHT
GROEN LEFT
RIGHT PHONES
GND PHONES
LEFT PHONES
GEEL GND
SPHINX Myth 3 Service Manual
17
Schematic Diagram Amplifier Left
Q1L K389
Q2L C1775 Q3L
C1775
R7L 820R
R8L 820R
R9L 22R
R10L 22R
R11L 1K00
R13L 22K
R12L 475R
R2L 22K0
R1L 475R
R5L 22K
R6L 120K
AGND
AGND
P1L
200R
Q4L C1775
AGND
C1AL
120P
C1BL
120P
C2L
220P
C3L
1U
C12L
100N
C14L
100N
C9L
100N
C6L
100N
C15L
100N
C17L
100N
+
C11L
220U/63V
+
C13L
220U/63V
+
C10L
100U/16V
+
C18L
10U/100V
+
C16L
10U/100V
C5L
10P
C4L
100N
D1L
LED
Q5L A970
Q6L A970
R15L 39R
R17L 39R
R16L 56R0
R14L 18K0
R4L 22K
R3L 475R
R19L 220R
R24L 1KR18L
3K3
R26L 22R
R20L 300R
R21L 300R
R25L 22R
Q8L C2240
Q7L C2240
P2L 500R
AGND
AGND
AGND
AGND
AGND
AGND
Q9L C2240
P3L
50k
R41L 50k
Q11L A1145
Q10L C2705
Q12L C4382
Q13L A1668
D3L
ZF10
D2L
ZF10
D4L
ZF10
D5L
ZF10
R27L 47R/2W
R28L 100R
R29L 100R
R30L 0R22
R31L 0R22 R32L
47R/2W
R34L 10R/5W
R33L 10R/5W
R22L 2R2
R23L 2R2
Q15L A1668
Q14L K1058
D6L
1N4007
D7L
1N4007
C7L
47N
AGND
A
B
IC1L CNY17-D
REL6LB RELAIS DPDT
REL6LC RELAIS DPDT
L1L EE-K-021
C8L
330N
C21L
10N
C20L
1N
V+ V+_BEV
V-
OUT+
OUT-
PM7
PM8
GNDOUT
KAST
R35L 220R
R36L 100R
C19L
100N
Q16L C1775
D2L
1N4148
A
B
OC
SPHINX Myth 3 Service Manual
18
Schematic Diagram Amplifier Right
Q1R K389
Q2R C1775 Q3R
C1775
R7R 820R
R8R 820R
R9R 22R
R10R 22R
R11R 1K00
R13R 22K
R12R 475R
R2R 22K0
R1R 475R
R5R 22K
R6R 120K
AGND
AGND
P1R
200R
Q4R C1775
AGND
C1AR
120P
C1BR
120P
C2R
220P
C3R
1U
C12R
100N
C14R
100N
C9R
100N
C6R
100N
C15R
100N
C17R
100N
+
C11R
+
C13R
220U/63V
+
C10R
100U/16V
+
C18R
10U/100V
+
C16R
C5R
10P
C4R
100N
D1R
LED
Q5R A970
Q6R A970
R15R 39R
R17R 39R
R16R 56R0
R14R 18K0
R4R 22K
R3R 475R
R19R 220R
R24R 1KR18R
3K3
R26R 22R
R20R 300R
R21R 300R
R25R 22R
Q8R C2240
Q7R C2240
P2R 500R
AGND
AGND
AGND
AGND
AGND
AGND
Q9R C2240
P3R
50k
R41R 50k
Q11R A1145
Q10R C2705
Q12R C4382
Q13R A1668
D3R
ZF10
D2R
ZF10
D4R
ZF10
D5R
ZF10
R27R 47R/2W
R28R 100R
R29R 100R
R30R 0R22
R31R 0R22 R32R
47R/2W
R34R 10R/5W
R33R 10R/5W
R22R
2R2
R23R 2R2
Q15R A1668
Q14R K1058
D6R
1N4007
D7R
1N4007
C7R
47N
AGND
A
B
IC1R CNY17-D
REL6RB RELAIS DPDT
REL6RC RELAIS DPDT
L1R EE-K-021
C8R
330N
C21R
10N
C20R
1N
V+ V+_BEV
V-
R35R 220R
R36R 100R
C19R
100N
Q16R C1775
D2R
1N4148
A
B
OC
SPHINX Myth 3 Service Manual
19
Schematic Diagram keyboard
S1A S1B S2A S2B S3A S3B S4A S4B S5A S5B S6A S6B
R1 3K3
R2 3K3
D1
LED
D2
LED
D3
LEDD4LED
D5
LED
D6
LED
R3 3K3
TAPE-M
LINE1
LINE2 CD TUNER
MUTE
+24V
L+24V
L-TAPE L-L2
L-TUNER
L-MUTE
L-CD L-L1
S-L2 S-CD S-TUNER S-TAPES-MUTES-L1
SPHINX Myth 3 Service Manual
20
Schematic Diagram control
C1
100ND21N4148D11N4148
R5 4K7
R8 4K7
R6 4K7
R7 4K7
R3 10K
R13 10K
R4 10KQ11
BC807
Q7
BC817Q9BC817
+
C10
330U/6V
Q8 BC817
Q10 BC807
C9
100N
C4
100N
+
C13
10U/100V
C7
100N
VoutVin
GND
U1 7805
C3
100N
Q2 A970Q3A970
Q4 C2240Q5C2240
M1 M2
C5
100N
C6
100N
Q1 8MHz
R16 4K7
R17 4K7
R18 33K
R14 10K
R11 390R
R12 390R
V+
2
D
1
GND
3
IR
IR1
SFH506-38
+
C8
1U5
+
C27
68U/6V3
C14
100N
OVER_CR
OVER_CL
DGND
+5V
VCC
/MR
GND PFI /PFO
WDI
/RES
/WDO
IC1
ADM705
R12 4K7
R11 4K7
Q13 BC807
+5V
+5V
DGND
PROTECT
DGND
X1
11
X2
10
P17-T020P37
21
P36
22
P35
23
P34
1
P14
17
P15-INT0
18
P33
2
P11
14
P32
3
P31
4
P30
5
P16-INT1
19
VCC
24
P13
16
P12
15
P10
13
GND
12
P02
6
P01-SDA
7
P00-SCL
8
RES
9
MCT1 83751
IN1
1
IN2
2
IN3
3
O1
18
O2
17
O3
16
O4
15
IN6
6
IN55O5
14
IN7
7
13
10
O7
12
GND
9
IN4
4
IN88O8
11
C
10
U2
ULN2803
4K7
4K7
4K7
4K7
4K7
4K7
4K7
1
RN1A 4K7
+
C36
22U/16V
DGND
R2 4K7
Q2
BC807
R1 4K7
DGND
DGND
FL-TAPE
FL-L1
FL-L2
FL-TUNER FL-CD MUTE_LED FL-REL
123456789
10
DGND
FL-ERROR
+24VS
C23
100N
C19
100N
C24
100N
C26
100N
C20
100N
C21
100N
C22
100N
C25
100N
4K7
4K7
4K7
4K7
4K7
4K7
4K7
1
RN1A 4K7
+5V
+5V
C33
100N
C32
100N
C31
100N
C30
100N
C29
100N
C28
100N
DGND
DGND
C6
100N
+5V
PROTECT
C5
100N
+5V
DGND
DGND
D3
24V
D4
5V6D51N4148
R15 4K7
Q12 BC817
+
C34
1U/35V
+24VS
+24V
DGND
Q14
BCV46
+24V
DGND
FL-ERROR
+40V
C2
100N
C11
100N
C12
100N
C14
100N
C15
100N
C16
100N
DGND
KAST +5V
S-GND
S-TAPE
S-L2
S-CD
S-TUNER
S-L1
S-MUTE
L+24V
L-MUTE
L-CD
L-TUNER
L-L1
L-L2
L-TAPE
SPHINX Myth 3 Service Manual
21
Parts List
Designator Part Type Description
+24VOUT 1PIN Connector ACINP1 1PIN Connector ACINP2 1PIN Connector ACP1 1PIN Connector ACP2 1PIN Connector ACP3 1PIN Connector ACP4 1PIN Connector ACS1 1PIN Connector ACS2 1PIN Connector ACS3 1PIN Connector ACS4 1PIN Connector C1 100N MKT capacitor C1 220N MKT capacitor C10 10U Electrolitic capacitor C10 330U/6V Electrolitic capacitor C10L 100U/16V Electrolitic capacitor C10R 100U/16V Electrolitic capacitor C11 100N MKT capacitor C11L 220U/63V Electrolitic capacitor C11R 220U/63V Electrolitic capacitor C12 100N MKT capacitor C12L 100N MKT capacitor C12R 100N MKT capacitor C13 10U/100V Electrolitic capacitor C13L 220U/63V Electrolitic capacitor C13R 220U/63V Electrolitic capacitor C14 100N MKT capacitor C14 100N MKT capacitor C14L 100N MKT capacitor C14R 100N MKT capacitor C15 100N MKT capacitor C15L 100N MKT capacitor C15R 100N MKT capacitor C16 100N MKT capacitor C16L 10U/100V Electrolitic capacitor C16R 10U/100V Electrolitic capacitor C17L 100N MKT capacitor C17R 100N MKT capacitor C18L 10U/100V Electrolitic capacitor C18R 10U/100V Electrolitic capacitor C19 100N MKT capacitor C19L 100N MKT capacitor C19R 100N MKT capacitor C1AL 120P MKT capacitor C1AR 120P MKT capacitor C1BL 120P MKT capacitor C1BR 120P MKT capacitor C2 100N MKT capacitor
SPHINX Myth 3 Service Manual
22
Designator Part Type Description
C2 220N MKT capacitor C20 100N MKT capacitor C20L 120P MKT capacitor C20L 1N MKT capacitor C20R 120P MKT capacitor C20R 1N MKT capacitor C21 100N MKT capacitor C21L 10N MKT capacitor C21L 10U/100V MKT capacitor C21R 10N MKT capacitor C21R 10U/100V MKT capacitor C22 100N MKT capacitor C23 100N MKT capacitor C24 100N MKT capacitor C25 100N MKT capacitor C26 100N MKT capacitor C27 68U/6V3 Electrolitic capacitor C28 100N MKT capacitor C29 100N MKT capacitor C2L 220P MKT capacitor C2R 220P MKT capacitor C3 100N MKT capacitor C3 220N MKT capacitor C30 100N MKT capacitor C31 100N MKT capacitor C32 100N MKT capacitor C33 100N MKT capacitor C34 1U/35V Electrolitic capacitor C36 22U/16V Electrolitic capacitor C3L 1U MKT capacitor C3R 1U MKT capacitor C4 100N MKT capacitor C4 220N MKT capacitor C4L 100N MKT capacitor C4R 100N MKT capacitor C5 100N MKT capacitor C5 100N MKT capacitor C5 4700U/50V Electrolitic capacitor C5L 10P MKT capacitor C5R 10P MKT capacitor C6 100N MKT capacitor C6 100N MKT capacitor C6 4700U/50V Electrolitic capacitor C6L 100N MKT capacitor C6R 100N MKT capacitor C7 100N MKT capacitor C7 4700U/50V Electrolitic capacitor C7L 47N MKT capacitor C7R 47N MKT capacitor
SPHINX Myth 3 Service Manual
23
Designator Part Type Description
C8 1U5 Electrolitic capacitor C8 4700U/50V Electrolitic capacitor C8L 330N MKT capacitor C8R 330N MKT capacitor C9 100N MKT capacitor C9L 100N MKT capacitor C9R 100N MKT capacitor D1 1N4148 Diode D1 1N4148 Diode D1 LED LED D10 1N4148 Diode D11 1N4148 Diode D12 1N4148 Diode D17 1N4148 Diode D1L LED LED D1R LED LED D2 1N4148 Diode D2 LED LED D2 ZF24V Zener diode D2L 1N4148 Diode D2L ZF10 Zener diode D2R 1N4148 Diode D2R ZF10 Zener diode D3 24V Zener diode D3 LED LED D3 SB356 Diode D3L ZF10 Zener diode D3R ZF10 Zener diode D4 5V6 Zener diode D4 LED led D4L ZF10 Zener diode D4R ZF10 Zener diode D5 1N4148 Diode D5 LED LED D5L ZF10 Zener diode D5R ZF10 Zener diode D6 LED LED D6L 1N4007 Diode D6R 1N4007 Diode D7L 1N4007 Diode D7R 1N4007 Diode D8 1N4148 Diode D9 1N4148 Diode EARTH 1PIN Connector GEEL GND Connector GNDOUT 1PIN Connector GROEN LEFT Connector IC1 ADM705 IC IC1L CNY17-D Optocoupler
SPHINX Myth 3 Service Manual
24
Designator Part Type Description
IC1L CNY17-D Optocoupler IC1R CNY17-D Optocoupler IC1R CNY17-D Optocoupler IR1 SFH506-38 Infrared receiver L1L EE-K-021 Coil L1R EE-K-021 Coil L2/L1 CINCH-MYTH4P Connector M1 1PIN Connector M2 1PIN Connector MCT1 83751 NTC1 2.5E/8A NTC myth devices ORANJE RIGHT Connector P1.1 ALPS 20K Adj. Potmeter P1.2 ALPS 20K Adj. Potmeter P1L 200R Adj. Potmeter P1R 200R Adj. Potmeter P2L 500R Adj. Potmeter P2R 500R Adj. Potmeter P3L 50k Adj. Potmeter P3R 50k Adj. Potmeter Q1 8MHz XTAL Q1 BD679 Transistor Q10 BC807 Transistor Q10L C2705 Transistor Q10R C2705 Transistor Q11 BC807 Transistor Q11L A1145 Transistor Q11R A1145 Transistor Q12 BC817 Transistor Q12L C4382 Transistor Q12R C4382 Transistor Q13 BC807 Transistor Q13L A1668 Transistor Q13R A1668 Transistor Q14 BCV46 Transistor Q14L K1058 Transistor Q14R K1058 Transistor Q15L A1668 Transistor Q15R A1668 Transistor Q16L C1775 Transistor Q16R C1775 Transistor Q17 C2240 Transistor Q1L K389 Dual N-JFET Q1R K389 Dual N-JFET Q2 A970 Transistor Q2 BC807 Transistor Q2L C1775 Transistor Q2R C1775 Transistor Q3 A970 Transistor
SPHINX Myth 3 Service Manual
25
Designator Part Type Description
Q3L C1775 Transistor Q3R C1775 Transistor Q4 C2240 Transistor Q4L C1775 Transistor Q4R C1775 Transistor Q5 C2240 Transistor Q5L A970 Transistor Q5R A970 Transistor Q6L A970 Transistor Q6R A970 Transistor Q7 BC817 Transistor Q7L C2240 Transistor Q7R C2240 Transistor Q8 BC817 Transistor Q8L C2240 Transistor Q8R C2240 Transistor Q9 BC817 Transistor Q9L C2240 Transistor Q9R C2240 Transistor R1 1K Resistor R1 3K3 Resistor R1 475R Resistor R1 4K7 Resistor R1 56R/2W Resistor R10L 22R Resistor R10R 22R Resistor R11 390R Resistor R11 4K7 Resistor R11L 1K00 Resistor R11R 1K00 Resistor R12 390R Resistor R12 4K7 Resistor R12L 475R Resistor R12R 475R Resistor R13 10K Resistor R13L 22K Resistor R13R 22K Resistor R14 10K Resistor R14L 18K0 Resistor R14R 18K0 Resistor R15 4K7 Resistor R15L 39R Resistor R15R 39R Resistor R16 4K7 Resistor R16L 56R0 Resistor R16R 56R0 Resistor R17 4K7 Resistor R17L 39R Resistor R17R 39R Resistor
SPHINX Myth 3 Service Manual
26
Designator Part Type Description
R18 33K Resistor R18L 3K3 Resistor R18R 3K3 Resistor R19L 220R Resistor R19R 220R Resistor R1L 475R Resistor R1R 475R Resistor R2 10K Resistor R2 1K Resistor R2 3K3 Resistor R2 475R Resistor R2 4K7 Resistor R20L 300R Resistor R20R 300R Resistor R21L 300R Resistor R21R 300R Resistor R22L 2R2 Resistor R22R 2R2 Resistor R23L 2R2 Resistor R23R 2R2 Resistor R24L 1K Resistor R24R 1K Resistor R25L 22R Resistor R25R 22R Resistor R26L 22R Resistor R26R 22R Resistor R27L 47R/2W Resistor R27R 47R/2W Resistor R28L 100R Resistor R28R 100R Resistor R29L 100R Resistor R29R 100R Resistor R2L 22K0 Resistor R2R 22K0 Resistor R3 10K Resistor R3 1K Resistor R3 3K3 Resistor R30L 0R22 Resistor R30R 0R22 Resistor R31L 0R22 Resistor R31R 0R22 Resistor R32L 47R/2W Resistor R32R 47R/2W Resistor R33L 10R/5W Resistor R33R 10R/5W Resistor R34L 10R/5W Resistor R34R 10R/5W Resistor R35L 220R Resistor R35R 220R Resistor
SPHINX Myth 3 Service Manual
27
Designator Part Type Description
R36L 100R Resistor R36R 100R Resistor R3L 475R Resistor R3R 475R Resistor R4 10K Resistor R4 1K Resistor R41L 475R Resistor R41L 50k Resistor R41R 475R Resistor R41R 50k Resistor R42L 475R Resistor R42R 475R Resistor R4L 22K Resistor R4R 22K Resistor R5 1K Resistor R5 4K7 Resistor R51 10k Resistor R52 4k75 Resistor R53 4k75 Resistor R5L 22K Resistor R5R 22K Resistor R6 1K Resistor R6 4K7 Resistor R6L 120K Resistor R6R 120K Resistor R7 4K7 Resistor R7L 820R Resistor R7R 820R Resistor R8 4K7 Resistor R8L 820R Resistor R8R 820R Resistor R9L 22R Resistor R9R 22R Resistor REL1 REL16 Relay REL2 REL16 Relay REL3 REL16 Relay REL4 REL16 Relay REL5 REL16 Relay REL6RL RA451024 Relay RN1 4K7 R-ARRAY RN1 4K7 R-ARRAY S1 SWITCH-DPST SWITCH-DPST S2 SWITCH-DPST SWITCH-DPST S3 SWITCH-DPST SWITCH-DPST S4 SWITCH-DPST SWITCH-DPST S5 SWITCH-DPST SWITCH-DPST S6 SWITCH-DPST SWITCH-DPST SW1 115_230 SWITCH SPDT X 2 TAPE CINCH-MYTH4P Connector
SPHINX Myth 3 Service Manual
28
Designator Part Type Description
TUNER/CD CINCH-MYTH4P Connector U1 7805 IC U2 ULN2803 ULN2803
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