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Project8

Sphinx Project8 SERVICE MANUAL

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SPHINX Project Eight Service Manual
A
SERVICE MANUAL
PROJECT EIGHT
REFERENCE
A
PRE-AMP
1
SPHINX Project Eight Service Manual
1. UNPACKING.......................................................................................................................................3
2. SPHINX WARRANTY CARD ..............................................................................................................3
3. CONTACTING THE MANUFACTURER.............................................................................................3
4. TECHNICAL SPECIFICATIONS.........................................................................................................4
5. GENERAL CHECKLIST......................................................................................................................5
6. SPHINX REMOTE CONTROL............................................................................................................6
7. MEASUREMENTS ..............................................................................................................................9
8. OUTPUT DC-OFFSET ADJUSTMENT.............................................................................................10
9. PROBLEMS AND SOLUTIONS........................................................................................................11
10. DIAGRAMS AND PARTS LISTS ....................................................................................................12
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SPHINX Project Eight Service Manual
The Sphinx Project Eight design
The Sphinx Project Eight was designed for the ever-increasing group of quality-conscious audiophiles. We are very proud of the tradition connected with the SPHINX name, especially concerning audio quality perfection. This service manual will help you to optimally service and repair the Sphinx Project Eight Reference Pre-Amp.
This Reference pre-amp uses the newest technologies and refined designs and is extremely simple to operate. Features include ultra-linear extremely low-noise Class A audio circuits, built from the finest hand­selected parts. The signal path is completely balanced from input to output, and left and right are totally separated. Volume and balance controls are achieved by means of precision relays, as is the input selection. All settings and controls can also be accessed from the supplied Sphinx Remote Control.
To obtain the maximum quality from this pre amp it is necessary for it to be properly aligned and to be used with top quality audio components, preferably other Sphinx components.
Please also refer to the User Manual of the Project Eight 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 Project Eight.
1. UNPACKING
Before leaving the factory every Project Eight is subjected to stringent and extensive technical and exterior quality inspection. This ensures the user many years of high quality audio from a perfect­looking product. We recommend owners to ship the Project Eight in its original carton.
After unpacking the Project Eight we therefore recommend you carefully check it for any transport damage. If you find any damage and the product has not been shipped in the original carton the ensuring repair costs will not be covered by the warranty.
2. SPHINX WARRANTY CARD
To be entitled to any warranty repairs the owner must have send the filled out warranty card to Sphinx or a distributor where it has been registered. Other regulations may apply in your specific country: when in doubt, please consult the proper authorities.
3. 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:
Telephone (+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.
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SPHINX Project Eight Service Manual
4. TECHNICAL SPECIFICATIONS
Bandwidth 0 - 500,000 Hz (+0/-3 dB) Phase response error <1° Gain 20 dB max. THD+N (IHF-A) <0.008% (2nd harm., < 100 kHz and 6 V into 600 ohm)
IMD <0.0015% S/N ratio (IHF-A) >110 dB Channel separation >110 dB
<0.0015% (2nd harm., 10 – 20,000 Hz and 6 V into 600 ohm)
Inputs 2x XLR balanced Level, nominal (for 1 V output) 0.16 V (-18 dBV)
Impedance XLR: 10 kohm / cinch: 50 kohm Sensitivity (programmable for each input) adjustable between –9 dB and +9 dB
Outputs 2x XLR balanced
level 10 V max. (20 dBV) (1 - 100,000 Hz, THD <0.001%) impedance <10 ohm
Volume control Relay-controlled in steps of 0.2 dB channel imbalance less than 0.2 dB Sphinx Control 3x optical
Remote control full function Mechanical decoupling of housings Transrotor absorbing 'pucks'
Power supply External, in completely separate housing Supply capacitance 148,000 µF total Power consumption 50 W Dimensions (h x w x d) 68 x 482 x 328 mm (one housing only) Weight 14 kg
6x WBT cinch unbalanced
1x WBT cinch unbalanced 1x cinch Tape
Range 100 dB
OUT-1: 1 second delayed OUT-2: normal OUT-3: programmable via Auto On
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.
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SPHINX Project Eight Service Manual
5. GENERAL CHECKLIST
This checklist should be used for every pre-amp received.
To correctly perform the following procedures you may have to refer to the User Manual for more detailed information on specific functions.
Note: The pre-amp should be switched on at least 1 hour before performing the checklist procedures!
Serial number and software version
The serial number and software version should match those mentioned in the documentation as supplied with every Project Eight.
q Switch off the mains power. q Press the Standby button. q Switch the mains on again while holding the
Standby button depressed.
q The display will now show the serial number or
software version.
Input functions
All inputs should be checked for the correct:
q Name q Boost/Attenuation setting q Polarity
Channel imbalance
For every position (‘step’) of the volume control the imbalance between Left and Right should never exceed +/- 0.1 dB.
Remote Control
Each Remote Control is manually programmed during manufacturing. Therefore it is important to check whether all functions work correctly as mentioned in the User Manual. See also Chapter 6.
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SPHINX Project Eight Service Manual
6. SPHINX REMOTE CONTROL
This single Sphinx Remote Control lets you control all functions: not only of the Project Eight, but of all other Sphinx equipment. Moreover: you may also use it to control other types of equipment (e.g. TV and VCR) thanks to the 'learn' mode! Only the following buttons and indications on the Remote apply to the Project Eight:
Buttons and LED indication
1. LED: As soon as you press a button this LED will blink green: the Remote is functioning. When blinking green/red: batteries running low. When blinking red: change batteries (see Batteries).
2. STANDBY: Use this button to switch the Project Eight to stand-by.
3. PRE-AMP: To select the pre-amp. All buttons pressed hereafter will control only the pre-amp functions.
4. 1 - 8: To select inputs input 1 to 8 (Note: 9 and 0 have no function).
5. POLARITY: To change the polarity of the selected input from + to – (as indicated in the display).
6. SET-UP: To activate the SET-UP mode, pressing this button has the same effect as pressing the PRESETS button on the front panel.
7. PROGRAM - / +: After activating the SET-UP mode you can change the parameters with these two buttons: they have the same effect as the INPUT control on the front panel.
8. : Pressing this button mutes the outputs (temporarily) and you will not hear any sound.
The display shows "MUTE". Another press on this button unmutes the outputs.
9. + button: Pressing this big triangular button has the same effect as rotating the VOLUME control on the front panel clockwise. You increase the volume. The VOL value in the display increases (to max. 99).
10. — button: Pressing this big triangular button has the same effect as rotating the VOLUME control on the front panel anti-clockwise. You decrease the volume. The VOL value in the display decreases (to min. OFF).
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SPHINX Project Eight Service Manual
4. Then keep the appropriate button on the other
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 (3.).
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 (LED blinks), 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 (TV, VCR). If you depress the select button for longer than 0.5 sec, the system will select a different signal source (in our example you will then hear the Tuner playback).
remote depressed until the LED becomes green. After releasing the button the LED will blink orange and you may program the next button.
5. If the LED is red, repeat steps 3 and 4. If it still remains red please refer to "Remote does not 'learn".
6. Repeat steps 3 and 4 until all necessary buttons are programmed.
Note: Do not forget to program the STANDBY button! Note: Do not forget to program the TV button with the "TV-ON"-command!
7. When you are finished press any two buttons on the Remote to return to Normal mode. The LED will now be turned off.
Repeat steps 1 to 7 to program the remote for the VCR (in step 2. you should press the and VCR buttons). When this is finished your Sphinx Remote Control is ready for use. How to operate the Remote Control with the different Sphinx components is explained in the corresponding User Manual for each component.
Changing a command
This is done in exactly the same way as described in the preceding paragraph ‘LEARNING’ THE COMMANDS, but you now only carry out the procedure for a certain command and a certain system component.
'Learning' the commands
This Sphinx Remote Control is not only pre­programmed for all Sphinx components, but you can also remotely control your TV and VCR. The Remote Control is able to 'learn' the commands from each of the specific remote controls This will simplify the daily use of your audio/video system enormously.
The following paragraphs explain how you can 'teach' the Remote Control all those TV- and VCR­specific commands.
1. Place both the Sphinx Remote Control and the other remote (TV or VCR) flat on a table, facing each other with a spacing of no more than 2 cm.
Note: Please do not attempt this in direct sunlight or under strong lighting conditions.
2. Simultaneously press the and TV buttons on the Sphinx Remote.
The orange LED at the top right-hand of the Remote will light.
3. Momentarily press the first button on the Sphinx Remote to be programmed. The orange LED blinks.
Erasing all commands of one component
You may want to erase the commands of one system component (for instance because you have bought a new TV). Simultaneously depress the , Stand-by and
component select button (in our example 'TV'). This enables the Remote Control to re-'learn' the commands of the new unit (see also
‘LEARNING’ the commands...).
WARNING!: If you depress one of the other component select buttons (than TV or VCR) you will erase the commands for a Sphinx audio component! You should only do this if you do not have that specific Sphinx model, but one of another brand and want to program the commands of its remote control.
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SPHINX Project Eight Service Manual
The LED during Normal mode
• Blinks green: Remote sends a command.
• Blinks green/red: batteries are low, you should change them within a few days.
• Blinks red: replace batteries immediately. Replace them within 30 minutes or else all information in memory will be erased!
The LED during 'Learn' mode
• Indicates orange: Remote is in 'Learn' mode.
• Blinks orange: Remote awaits the command to be 'learned' from the other remote control.
• Indicates green: the new command has been 'learned'.
• Indicates red: the new command has NOT been 'learned'.
• Blinks for 10 seconds red, yellow and green: memory full, you cannot program new commands.
Note: You can still change any commands already programmed.
Batteries
The two batteries have a life span of approximately one year during normal use, but shorter when used more intensely. Replacement batteries: 1.5 V, model penlite or AAA (one of these codes is indicated on the packaging and the batteries). You may also use rechargeable
1.5 V batteries.
Do not leave the battery compartment empty for more than 30 minutes or else all information in memory will be erased!
Note: Position the new batteries exactly as shown in the illustration at the bottom of the battery compartment, otherwise the memory might be erased completely!
Other things worth knowing...
The 'advanced user' will understand that you can program any function for any button! You are therefore able to custom configure the Remote Control and use it for several pieces of equipment. The memory holds a maximum of 120 commands.
Warning: If you don't know exactly what you are doing, please consult your Sphinx dealer!
Encountering problems...
Remote Control does not work
Wrong component selected Select the correct one Wrong Remote mode ('Learn'
instead of Normal) Wrong command programmed Re-program with Learn
Distance to component exceeds 7 m
Angle between Remote and component exceeds ±30°
Sensor window on front dirty Clean window Batteries empty or incorrectly
placed
Strong (sun)light in room Shade off light source Component is not switched on
(!) Memory erased Re-program completely
Remote Control does not 'learn'
Wrong Remote mode (Normal instead of 'Learn')
Distance between two remotes exceeds 2 cm
Signal to be learned is not infrared
Sensor window on front dirty Clean window Batteries in remote(s) empty Use new batteries Strong (sun)light hits sensor
window
Component reacts differently than expected or not at all
Select correct mode
mode Use Remote at closer
range Decrease angle
Use new batteries or replace the old ones correctly
Switch it on
Select correct mode
Place them closer together
'Learning' only possible with infrared systems
Shade off light source
Wrong component selected Select the correct one Wrong command programmed Re-program with Learn
Component or Remote does not function
Batteries in remote empty Use new batteries
mode Check component with
its original remote
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SPHINX Project Eight Service Manual
7. MEASUREMENTS
To properly service the Project Eight you need some specific measurement equipment and use a specific set-up.
General set-up
For the correct measurement set-up and hook-up please refer to the drawing titled “Figure 3: Connection Diagram for testing the Project Eight” at page 14.
Necessary Equipment
q 2x millivolt-meter (Ri >1 MΩ)
q 2x non-inductive load resistor 8 Ω / 250 W
q 1x harmonic distortion analyser
(internal distortion <0.0005%, measured without filters)
q 1x 2-channel oscilloscope
(minimum bandwidth >60 MHz)
q 1x connection unit / switch box
(to connect resistors and amp outputs to distortion meter) Note: See drawing 4. for construction details.
Audio signal distortion measurement
Before adjusting the Project Eight please first measure the total harmonic distortion at the audio output. The measured value is an indication of the current state of the Project Eight.
Set-up
For the correct measurement set-up please refer to figure 3 at page 14.
q Set the oscillator output level to 0.775 V
(0 dBu).
q Adjust the pre-amp volume control so that
output level equals input level (0 dBu).
q THD should now be 0.1% unweighted (or
0.013% IHF-A).
q Now set volume control to maximum (fully
clockwise).
q Increase the oscillator output of the distortion
analyser to set the pre-amp output just before clipping.
q THD should now be 0.12% unweighted (or
0.005% IHF-A).
q 2x shorting connector
(for balanced pre-amp inputs)
q 2x balanced cable set
(to connect distortion meter, pre-amp and power amp)
q 1x special top cover plate (preferably
transparent) with holes for adjustment tools Note: See drawing 5. for construction details.
q A two channel DC-coupled power amplifier
(e.g. Project Eighteen)
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SPHINX Project Eight Service Manual
q This offset can be adjusted by potentiometer
8. OUTPUT DC-OFFSET ADJUSTMENT
Proper DC-offset adjustment is very important.
P1 & P2 of disamp A3 for the left channel, and by potmeter P1 & P2 of disamp B3 for the right channel.
A simple trick will greatly increase the accuracy of this critical adjustment (see also the drawing titled “Connection Diagram for testing the Project Eight” at page 14 ). By connecting a DC-coupled power amp to the Project Eight outputs and measuring the offset at the speaker outputs, the offset is boosted to around 30 times the original value!
Note: We strongly recommend that you use a power amp with a very low DC-offset, such as the Project Eighteen. Note: The pre-amp and the power amp should be switched on at least 1 hour before performing this adjustment so they can reach optimum working temperatures.
Set-up
q Connect a distortion analyser input and a DC
mV-meter to a pre-amp output (or to the power ampifier). The correct pre-amp output will be mentioned later.
q Connect the distortion analyser output to a pre-
amp input, the correct input will be mentioned later.
q Switch off the oscillator of the analyser, this will
short-circuit the pre-amp input.
q Remove the top cover of the Project Eight and
replace it with the special cover plate (with adjustment holes, see figure 5 at page 16).
Adjustment
For the actual adjustment you may refer to Figure 20 (Main PCB drawing) at page 29 and Figure 7 (Schematic overview of all relevant potentiometers) at page 17. In Figure 6 (Schematic operational diagram of project Eight) at page 16 you will find the placement of all amps:
Connect the (muted)distortion analyser output to an unbalanced input of the project eight and select the correct input at the front panel. Connect the power amplifier (or, if no power amplifier is used, the distortion analyser and mV­meter) to the unbalanced output of the project eight. The unbalanced signal will only be processed by disamp A1 & A3 (left channel) and disamp B1 & B3 (right channel). The remaining disamps have no effect on an unbalanced signal.
q Turn the volume of the project eight to ‘off’. The
offset currently visible on the mV-meter is the offset of disamp A3(left channel) and/or disamp B3(right channel).
q Turn the volume of the project eight fully open.
The offset currently visible on the mV-meter is the offset of disamp A1(left channel) and/or disamp B1(right channel)
q This offset can be adjusted by potentiometer
P1 & P2 of disamp A1 for the left channel, and by potmeter P1 & P2 of disamp B1 for the right channel.
The distortion analyser output must now be connected to a balanced input of the project eight. The correct input must also be selected at the front panel. The power amplifier (or, if no power amplifier is used, the distortion analyser and mV-meter ) must now be connected to a balanced output of the project eight. The total offset of all disamps is now visible on the mV-meter, but since the offset of disamp A1 & A3(left channel) and disamp B1 & B3(right channel) has already been adjusted, the offset visible is the offset of the remaining disamps(A2&A4 and B2&B4).
Notice: do not commence with the following procedures before the procedures mentioned above have been completed.
q Turn the volume of the project eight to ‘off’. The
offset currently visible on the mV-meter is the offset of disamp A4(left channel) and/or disamp B4(right channel).
q This offset can be adjusted by potentiometer
P1 & P2 of disamp A4 for the left channel, and by potmeter P1 & P2 of disamp B4 for the right channel.
q Turn the volume of the project eight fully open.
The offset currently visible on the mV-meter is the offset of disamp A2(left channel) and/or disamp B2(right channel)
q This offset can be adjusted by potentiometer
P1 & P2 of disamp A2 for the left channel, and by potmeter P1 & P2 of disamp B2 for the right channel.
Repeat the offset adjustment proceduces a few times for a perfect adjustment. When this is done, the offset adjustments are completed
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SPHINX Project Eight Service Manual
9. PROBLEMS AND SOLUTIONS
At the moment of writing the Project Eight has one known specific problem. 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. .
Problem Cause Solution Refer to
Volume control doesn’t work properly
IC U15, U16, U17 or U18 may be defective.
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.
page…
Replace the defective one. Page 24
Page 25
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SPHINX Project Eight Service Manual
10. 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).
Figure 1: Front panel
Figure 2: Rear panel
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SPHINX Project Eight Service Manual
Index of diagrams and drawings
Page Description 14 Connection Diagram for testing the Project Eight 15 Display Board Schematic Layout 16 Construction Drawing for top cover plate 17 Schematic Operational Diagram Project Eight 18 Schematic Overview of all relevant potentiometers 19 Disamp-96 20 Functional Schematic 21 Left Power Supply 22 Right Power Supply 23 Input/Output 24 Left Volume Control 25 Right Volume Control 26 Left Output Amp 27 Right Output Amp 28 Left Input Amp 29 Right Input Amp 30 Power Supply Unit 31 PCB drawings
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SPHINX Project Eight Service Manual
Figure 3: Connection Diagram for testing the Project Eight
Oscillator
Frequency
Amplitude
out1 out2
(+) (-) (+) (-)
inp1
inp2
x
y
time/div
gnd
gnd
THD out
inp1
THD
inp2
out1 out2
Scoop
inp2inp1
SWITCH-BOX
Left
A
Amplfier (30x)
Right
B
AMPLIFIER
(+)
(-)
(+)
(-)
(+)
Left
(-)
(+)
Right
(-)
A
Pre-amplfier (3x)
B
PRE-AMPLIFIER
(+)
(-)
(+)
(-)
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SPHINX Project Eight Service Manual
IR
Figure 4: Display Board Schematic Layout
VCC
VCC
CL EN
C7
3U3/63V
D1 1N4148
RES
P65
R1 27K4R210K0
1
VOUT
PFI
4
R5 68K1
J1
5
PFO
WDI
6
7
RES
VBAT
8
U2 MAX690
CN1
TO MAINBOARD UCN'S
18PIN
123456789
D0D1D2D3D4D5D6
D[0..7]
D0D1D2D3D4D5D6
60
61
P30
62
P31
63
P32
64
P33
65
P34
66
P35
67
P36
68
P37
1
nc
2
P60
3
P61
4
P62
5
P63
6
P64
7
P65
8
P66
9
RES
Xtal10EXtal11MD112MD013NMI14VCC15STBY16GND17P4019P4120P4221P4322P4423P4524P4625P47
VCC
U3 8M
C4
220n C2
33p C1
33p
D7
S[0..5]
D7
P1753P1654P1555P1456P1357P1258P1159P10
S0S1S2S3S4
52
GND
nc
18
101112131415161718
EN CL
S0S1S2S3S4S5S6
50nc51
H8
C9
S5
VCC
P2644P2545P2446P2347P2248P2149P20
P76/RD
P75/WR
26
+
470U/16V
P27
VCC
P77
P74 P73 P72
nc P71 P70 P55 P54 P53 P52 P51 P50
S2
A ­B +
ENCOD
U1
H8/325
CN2 20PIN
43 42
VCC
41 40 39 38 37 36 35 34 33 32 31 30 29 28 27
J2
S5
21
TO VFD-DISPLAY
123456789
D0D1D2
D3D4D5D6D7
1
6
7
U4
nc
nc
93C46
CS
DI
DO
CLK
3
4
2
C5
220n
VCC
C3
220n
VCC
1011121314151617181920
VCC
J3
P65
RES
NORMAL JUMPER SETTINGS JUMPER CLOSED OPEN
J1 J2 J3
X
X X
VCC
S4
S3
S1
B + A -
ENCOD
C8
+
C47U/16V
R3 5R62R461K9
IR1 IRIC
2D1
V+
21
21
VCC
3
IR-receiver
GND
Standby PresetsPolarity
C6
220n
Input Volume
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SPHINX Project Eight Service Manual
Front
Back
Figure 5: Construction Drawing for top cover plate
All sizes in millimeters
315
216 230
For holes use drill size of
approx. Ø 6 mm
480
Holes use same spacing as the
ones shown below
Top View
66
33
48 4848 48
6 6
12
34
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SPHINX Project Eight Service Manual
Figure 6: Schematic Operational Diagram Project Eight
project eight main board
disamp module 5
disamp module 6
disamp module 7
disamp
A4
top view
B4 B2
module 1
disamp module 2
disamp module 3
A2
A1A3
left
right
disamp disamp module 8
front
module 4
B1B3
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SPHINX Project Eight Service Manual
Figure 7: Schematic Overview of all relevant potentiometers
(+) (-)
RIGHT
(+) (+)
VCC VCC
P1 P1
(-) (-)
DISAMP DISAMP
B1
DISAMP DISAMP
B3
VDD
P2 P2
VDD VDD
(+)
VCCVCC
B2
(+)(+)
VDD
(-)(-)
B4
P1P1
P2P2
(-)
LEFT
(+)
(+) (+)
DISAMP DISAMP
VCC VCC
VCC VCCVDD VDD
A1
P1 P2 P1 P2
DISAMP DISAMP
A3
(+) (-)
A2
(+)(+) (-) (-)
A4
(-)
(-)(-)
VDDVDD
P2P1P2P1
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SPHINX Project Eight Service Manual
LED Voltage approx. 1.8V
R5 = 2R7 OP INPUT MODULE
Figure 8: Disamp-96
CN2
4PIN
1
C1
47n
C5
10n
+24V (+/- 1V)
C9
25V/47U
± 7.5mA
R11
600R
+
4
R19
2K21
R1
100R
R17
51R0
CN1
4PIN
4
R5
24R9
T1
± 13mA
A1306
R4
10R0
R6
10R0
R3
51R0
± 7.5 mA
T4
C2705
D2
1N4148
R13
18R0
R14
18R0
R2
243R
T3
A1145
R10
4K75
C4
LD1 LD3
LD2
47pF
C7
R15
10R0
25V/47U
T7
C2240
+
R24
T9
200R
R26
100R
C3
470pF
R27
100R
1
R25
200R
D3
1N4148
AGNDAGND
T5
A1145
T2
C3298
+
25V/47U
T10
T8
A970
C8
R7
51R0
LD4
R9
100R
R8
243R
T6
C2705
R22
51R0
R20
2K21
CN3
4PIN
4
R12
600R
C10
C25V/47U
1
C2
47n
C6
10n
-24V (+/- 1V)
+
D1
1N4148
P1
50R
R18
2K21
T11
C2240
R16
2K21
R30
K389
200R
R31
100R
R28
100R
R32
200R
J109
T12
A970
R23
2K21
R21
2K21
P2
AGND
R29
243R
T13
A970
LD5 LD6
±4mA
8
CN4
8PIN
±4mA
1
2
3
4
5
6
7
R34
33K2
T14
C2240
R33
243R
C11
+
D4
1N4148
50R
C12
+
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SPHINX Project Eight Service Manual
INPUT/OUTPUT SELECTION LOGIC
U1
Figure 9: Functional Schematic
1
+24V
2
+9V
3 4
DGND
5 6 7
AGND
8 9
AGND
10 11 12 13
AGND
14 15
AGND
16
LEFT CHANNEL PP REG.
L+38V
L+38V
L-38V
L-38V
P08LPR.SCH
RIGHT CHANNEL PP REG.
R+38V
R+38V
R-38V
R-38V
P08RPR.SCH
L+24V
L+24V
L-24V
L-24V
R+24V
R+24V
R-24V
R-24V
6x0.3 Siltech Silver
SP1 SP2
SP3 SP4
+R-OUT
+R-OUT
-R-OUT
-R-OUT +L-OUT
+L-OUT
-L-OUT
-L-OUT
D[1..16]
D[1..16]
P08IO.SCH
LEFT DIFF. LINE-AMP
L+24V
L+24V
SP6
-L-OUT
-L-OUT
SP5
+L-OUT
+L-OUT
L-24V
L-24V
P08LOA.SCH
RIGHT DIFF. LINE-AMP
R+24V
R+24V
SP8
-R-OUT
-R-OUT
SP7
+R-OUT
+R-OUT
R-24V
R-24V
P08ROA.SCH
-LV-OUT
-LV-OUT
+LV-OUT
+LV-OUT
-RV-OUT
-RV-OUT
+RV-OUT
+RV-OUT
L. VOL. CONTROL
-LV-OUT
-LV-OUT
+LV-OUT
+LV-OUT
P08LVC.SCH
CN1
R. VOL. CONTROL
-RV-OUT
-RV-OUT
+RV-OUT
+RV-OUT
P08RVC.SCH
D[1..16]
D[1..16]
-LV-IN
-LV-IN
+LV-IN
+LV-IN
AGND
D[1..16]
D[1..16]
-RV-IN
-RV-IN
+RV-IN
+RV-IN
D[1..16]
LEFT DIFF. LINE-AMP
L+24V
L+24V
-LV-IN
-LV-IN
+LV-IN +L-IN
+LV-IN +L-IN
L-24V
L-24V
P08LIA.SCH
RIGHT DIFF. LINE-AMP
R+24V
R+24V
-RV-IN
-RV-IN
+RV-IN
+RV-IN
R-24V CINCH
R-24V CINCH
P08RIA.SCH
CINCH
CINCH
+R-IN
+R-IN
-R-IN
-R-IN
+L-IN
+L-IN
-L-IN
-L-IN
-L-IN
-L-IN
CINCH
CINCH
-R-IN
-R-IN
+R-IN
+R-IN
SP12
SP10
SP16
SP14
SP15 SP13
SP11 SP9
6x0.3 Siltech Silver
Project Eight Functional Schematic
20
SPHINX Project Eight Service Manual
R42
1R00
Figure 10: Left Power Supply
AGND
L+24V L-24V
C33
+
63V/2200U
C38
+
63V/2200U
R41
1R00
± 24V
150..160 mA
D5
1N4004
R45
10K0
R37
C21
8K25
330N/PP
T1
C3298
± 6.9V
3
7 4
D9
1N4148
R8
15R0R91R00
R17
10K0
R46
1K00
6.9V
6
6.9V
2
OPA604
± 16V
R19
2K00
U2
C14
47N/PP
T3
A1306
+
+
R33
3K32
C34
22N/PP
C35
50V/330U
U6
LM329DZ
C25
22N/PP
C26
50V/330U
± 3.5 mA
R18
2K00
R34
3K32
R30
2K00
C37
22N/PP
C36
+
50V/330U
U7
LM329DZ
C28
22N/PP
C27
+
50V/330U
7 4
C15
47N/PP
T4
C3298
R10
1R00
R20
2K00
3
R47
1K00
6
2
U3
OPA604
R11
15R0
R21
10K0
D10
1N4148
T6
A1306
R48
10K0
150..160 mA
R38
8K25
C22
330N/PP
± 33V
T13
R16
332R
A970
LD1
LD RD
LED voltage approx. 1.8 V
R4
22K1
T2
C13
+
C50V/330U
C2240
* T2 Uce = ±3.7 V
C1
330N/PP
+
63V/1000U
+
63V/1000U
1N4004
C3
C2
D1
330N/PP
+
63V/1000U
+
63V/1000U
D2
1N4004
L+38V L-38V
C4
C5
C6
T5
C16
+
C50V/330U
A970
R5
22K1
T14
C2240
R28
332R
LD2
LD RD
21
SPHINX Project Eight Service Manual
D8
1N4004
R44
1R00
Figure 11: Right Power Supply
AGNDAGND
R+24V
R43
1R00
R49
10K0
150..160 mA 150..160 mA
R39
8K25
C23
330N/PP
C39
+
63V/2200U
R50
1K00
3
2
U4
7 4
C40
22N/PP
C41
+
50V/330U
U8
LM329DZ
C29
22N/PP
C30
+
50V/330U
R35
3K32
+
+
R36
3K32
C43
22N/PP
C42
50V/330U
U9
LM329DZ
C32
22N/PP
C31
C50V/330U
C44
+
C63V/2200U
R51
1K00
3
2
U5
7 4
R52
10K0
R40
8K25
R-24V
C24
330N/PP
D7
1N4004
R22
332R
LD3
LD RD
T15
A970
T7
C3298
D11
1N4148
R6
22K1
R12
15R0
R23
10K0
T8
6
C17
+
50V/330U
OPA604
R13
1R00
R25
2K00
C2240
C18
47N/PP
T9
A1306
R24
2K00
C7
330N/PP
C9
+
63V/1000U
C8
+
63V/1000U
D3
1N4004
R31
2K00
C12
330N/PP
C11
+
63V/1000U
C10
+
63V/1000U
D4
1N4004
T10
C3298
C19
47N/PP
R14
1R00
R26
2K00
T11
6
C20
+
50V/330U
OPA604
R15
15R0
R27
10K0
A970
R7
22K1
T12
A1306
D12
1N4148
T16
C2240
R29
332R
LD4
LD RD
R+38V R-38V
22
SPHINX Project Eight Service Manual
TAPE OUT
MAIN OUT
UCN5801
DGND
Figure 12: Input/Output
CN24
RL58
DGND
RL57
RL56
RL55
RL54
RL53
RL52
RL47
RL42
RL37
RL32
RL27
RL22
RL17
RL12
RL11
RL10
RL9
RL8
RL7
RL6
RL5
RL4
R69 100K
RL3
R62 100K
RL2
R32 100K
RL1
R53 100K
+
+
AGND
+
+
+
AGND
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
AGND
+
AGND
+
AGND
+
AGND
R3 4k75
R2 4k75
R1 4k75
AGND
+R-OUT
-R-OUT
IN PHASE
+24V
+L-OUT
-L-OUT
OUT PHASE
+R-IN
-R-IN
+L-IN
-L-IN
-L +L -R +R
2
C93
+
50V/330U
D8
D9
D10
S1S2S3S4S5S6CL
DGND
DGND
D11
D12
D13
D14
+5V
C74
+
50V/330U
3
U20
+5V
GND
Vin
MC7805T
1
C88
100NMKT
+9V
D1D2D3D4D5D6D7
1234567891011121314151617
U19 18PIN
100NMKT
C69
21
22
Vdd
OUT EN
CLEAR1STRB2IN13IN24IN35IN46IN57IN68IN79IN810GND
D13
D15
D16
D[1..16]
+5V
D15
D16
DGND
18
OE
20
D1D2D3D4D5D6D7
AGND
R174 10R0
DGND
CINCH
+24V
100NMKT
+5V+5V
C83
DGND
12
22
U14 UCN5801
OUT813OUT714OUT615OUT516OUT417OUT318OUT219OUT1
OUT EN
COMMON
CLEAR1STRB2IN13IN24IN35IN46IN57IN68IN79IN810GND
11
DGND
D8
D15
D16
20
21
Vdd
D1D2D3D4D5D6D7
D14
D[1..16]
+24V
12
OUT813OUT714OUT615OUT516OUT417OUT318OUT219OUT1
11
D8
U21
COMMON
23
1-R1-L2-L 2-R3-R3-L4-L 4-R5-R5-L6-L 6-R7-R7-L8-L 8-R
MAIN OUT MAIN OUT
L L L LR R R R
3
3
3
3
3
3
3
3
1 2
1 2
1 2
1 2
CN20 CINCH
CN19 CINCH
CN18 CINCH
CN17 CINCH
CN16 CINCH
CN15 CINCH
CN14 CINCH
CN13 CINCH
CN12 CINCH
CN11 CINCH
CN10 CINCH
CN9 CINCH
CN8 CINCH
CN7 CINCH
CN6 CINCH
CN5 CINCH
1 2
1 2
1 2
1 2
XLR FEMALE
CN23
XLR FEMALE
CN22
XLR FEMALE
CN21
XLR FEMALE
R176 33K2
AGND
R175 33K2
AGND
AGND
CN4
XLR MALE
AGND
CN3
XLR MALE
AGND
CN2
XLR MALE
AGND
CN1
XLR MALE
OPT3 OPTOUT
OPT2 OPTOUT
OPT1 OPTOUT
SPHINX Project Eight Service Manual
UCN5801
Figure 13: Left Volume Control
-LV-IN
-LV-OUT +LV-OUT
R142 2K00
R135 634K
R144 2K00
R139 634K
+LV-IN
R131 0R00 R127 0R00 R123 10R0 R119 10R0 R115 20R0 R111 20R0 R107 40R2 R103 40R2 R99 80R6 R95 80R6 R91 162R R87 162R R83 324R R79 324R R134 649R R138 649R R126 1K30 R130 1K30 R118 2K61 R122 2K61 R110 5K23 R114 5K23 R102 10K0 R106 10K0 R94 20K0 R98 20K0 R86 39K2 R90 39K2 R78 84K5 R82 84K5
R145 2K00
AGND
R143 2K00
RL49
+
RL44
+
RL39
+
RL34
+
RL29
+
RL24
+
RL19
+
RL14
+
RL48
+
RL43
+
RL38
+
RL33
+
RL28
+
RL23
+
RL18
+
RL13
+
C103 100NMKT
C99
AGND
100NMKT
C95
AGND
100NMKT
C90
AGND
100NMKT
C85
AGND
100NMKT
C80
AGND
100NMKT
C76
AGND
100NMKT
C71
AGND
100NMKT
C102
AGND
100NMKT
C98
AGND
100NMKT
C94
AGND
100NMKT
C89
AGND
100NMKT
C84
AGND
100NMKT
C79
AGND
100NMKT
C75
AGND
100NMKT
C70
AGND
100NMKT
C65
DGND DGND
100NMKT
+24V
D16
D[1..16]
D[1..16]
LSB
+5V
20
21
22
Vdd
OUT EN
CLEAR1STRB2IN13IN24IN35IN46IN57IN68IN79IN810GND
D9
D15
D1D2D3D4D5D6D7
D8
MSB
+5V+24V +24V
C66
100NMKT
12
U15 UCN5801
OUT813OUT714OUT615OUT516OUT417OUT318OUT219OUT1
COMMON
11
DGND DGND
20
21
22
Vdd
OUT EN
CLEAR1STRB2IN13IN24IN35IN46IN57IN68IN79IN810GND
D1D2D3D4D5D6D7
D10
D15
D16
0 / -50 dB
12
U16
OUT813OUT714OUT615OUT516OUT417OUT318OUT219OUT1
COMMON
11
D8
24
SPHINX Project Eight Service Manual
UCN5801
DGND
Figure 14: Right Volume Control
-RV-IN
-RV-OUT
R146 2K00
R137 634K
+RV-OUT
R148 2K00
R141 634K
+RV-IN
R133 0R00 R129 0R00 R125 10R0 R121 10R0 R117 20R0 R113 20R0 R109 40R2 R105 40R2 R101 80R6 R97 80R6 R93 162R R89 162R R85 324R R81 324R R136 649R R140 649R R128 1K30 R132 1K30 R120 2K61 R124 2K61 R112 5K23 R116 5K23 R104 10K0 R108 10K0 R96 20K0 R100 20K0 R88 39K2 R92 39K2 R80 84K5 R84 84K5
R149 2K00
AGND
R147 2K00
RL51
+
RL46
+
RL41
+
RL36
+
RL31
+
RL26
+
RL21
+
RL16
+
RL50
+
RL45
+
RL40
+
RL35
+
RL30
+
RL25
+
RL20
+
RL15
+
C105 100NMKT
C101
AGND
100NMKT
C97
AGND
100NMKT
C92
AGND
100NMKT
C87
AGND
100NMKT
C82
AGND
100NMKT
C78
AGND
100NMKT
C73
AGND
100NMKT
C104
AGND
100NMKT
C100
AGND
100NMKT
C96
AGND
100NMKT
C91
AGND
100NMKT
C86
AGND
100NMKT
C81
AGND
100NMKT
C77
AGND
100NMKT
C72
AGND
100NMKT
C67
DGND DGND
100NMKT
+24V
D16
D[1..16]
D[1..16]
LSB
+5V
20
21
22
Vdd
OUT EN
CLEAR1STRB2IN13IN24IN35IN46IN57IN68IN79IN810GND
D1D2D3D4D5D6D7
D11
D15
OUT813OUT714OUT615OUT516OUT417OUT318OUT219OUT1
D8
12
U17 UCN5801
COMMON
11
DGND
+5V+24V +24V
C68
100NMKT
20
21
22
Vdd
OUT EN
CLEAR1STRB2IN13IN24IN35IN46IN57IN68IN79IN810GND
D1D2D3D4D5D6D7
D12
D15
D16
1 / -50 dB
MSB
12
U18
OUT813OUT714OUT615OUT516OUT417OUT318OUT219OUT1
COMMON
11
D8
25
SPHINX Project Eight Service Manual
R54
Figure 15: Left Output Amp
L+24V
-L-OUT
L-24V
L+24V
+L-OUT
L-24V
1R00
37..40mA
R55 1R00
37..40mA
R56 1R00
37..40mA
R57 1R00
37..40mA
AGND
AGND
AGND
AGND
C46 47N/PP
C47 47N/PP
C50 47N/PP
C51 47N/PP
+
C45 C63V/2200U
16 15 14 13
+
C48 C63V/2200U
+
C49 C63V/2200U
16 15 14 13
+
C52 C63V/2200U
NFB
OUT
NFB
OUT
171819
121110
171819
121110
20
+V
-V
9
20
9
DISAMPMODULE
+V
-V
DISAMPMODULE
U10
U11
1 2 3 4 5 6 7 8
AGND
1 2 3 4 5 6 7 8
AGND
R63 10K0 .1%
R64 10K0 .1%
R67 10K0 .1%
R70 100K
R71 100K
AGND
AGND
C61 220p
C62 220p
R74 2x0.3 zilver
R75 2x0.3 zilver
-LV-OUT
+LV-OUT
26
SPHINX Project Eight Service Manual
R58
Figure 16: Right Output Amp
R+24V
-R-OUT
R-24V
R+24V
+R-OUT
R-24V
1R00
37..40mA
R59 1R00
37..40mA
R60 1R00
37..40mA
R61 1R00
37..40mA
AGND
AGND
AGND
AGND
C54 47N/PP
C55 47N/PP
C57 47N/PP
C58 47N/PP
+ C53
C63V/2200U
16 15 14 13
+ C56
C63V/2200U
+ C60
C63V/2200U
16 15 14 13
+ C59
C63V/2200U
NFB
OUT
NFB
OUT
171819
121110
171819
121110
20
9
20
9
+V
-V
+V
-V
DISAMPMODULE
DISAMPMODULE
U12
U13
1 2 3 4 5 6 7 8
AGND
1 2 3 4 5 6 7 8
AGND
R65 10K0 .1%
R66 10K0 .1%
R68 10K0 .1%
R72 100K
R73 100K
AGND
AGND
C63 220p
C64 220p
R76 2x0.3 zilver
R77 2x0.3 zilver
-RV-OUT
+RV-OUT
27
SPHINX Project Eight Service Manual
R150
Figure 17: Left Input Amp
L+24V
-LV-IN
L-24V
L+24V
+LV-IN
L-24V
1R00
37..40mA
R151 1R00
37..40mA
R152 1R00
37..40mA
R153 1R00
37..40mA
AGND
AGND
AGND
AGND
C107 47N/PP
C108 47N/PP
C111 47N/PP
C112 47N/PP
+ C106
C63V/2200U
16 15 14 13
+ C109
C63V/2200U
+ C110
C63V/2200U
16 15 14 13
+ C113
C63V/2200U
NFB
OUT
NFB
OUT
171819
121110
171819
121110
20
9
20
9
+V
-V
+V
-V
DISAMPMODULE
DISAMPMODULE
U22
U23
1 2 3 4 5 6 7 8
AGND
1 2 3 4 5 6 7 8
AGND
R161 20K0 .1%
R158 10K0 .1%
R160 20K0 .1%
R159 10K0 .1%
R166
50K0
R167
50K0
AGND
AGND
REL16
C122 220p
RL59
C123 220p
R170 1K00
+
R171 1K00
+L-IN
+24VCINCH
-L-IN
28
SPHINX Project Eight Service Manual
R154
Figure 18: Right Input Amp
R+24V
-RV-IN
R-24V
R+24V
+RV-IN
R-24V
1R00
37..40mA
R155 1R00
37..40mA
R156 1R00
37..40mA
R157 1R00
37..40mA
AGND
AGND
AGND
AGND
C115 47N/PP
C116 47N/PP
C119 47N/PP
C120 47N/PP
+ C114
C63V/2200U
16 15 14 13
+ C117
C63V/2200U
+ C118
C63V/2200U
16 15 14 13
+ C121
C63V/2200U
NFB
OUT
NFB
OUT
171819
121110
171819
121110
20
9
20
9
+V
-V
+V
-V
DISAMPMODULE
DISAMPMODULE
U24
U25
1 2 3 4 5 6 7 8
AGND
1 2 3 4 5 6 7 8
AGND
R165 20K0 .1%
R162 10K0 .1%
R164 20K0 .1%
R163 10K0 .1%
R168 50K0
R169 50K0\
AGND
AGND
C124 220p
RL60
C125 220p
R172 1K00
+
R173 1K00
+R-IN
REL16
+24VCINCH
-R-IN
29
SPHINX Project Eight Service Manual
Figure 19: Power Supply Unit
CN2
5PIN
R2 R8
R9 R15
R16 R22
R23
R29
R30
1R
C1
B1
C2
1R
1R
C7
B2
C8
1R
1R
C13
B3
C14
1R
1R
BRIDGE6
C19
B4
C20
1R
1R
BRIDGE6
1R
BRIDGE6
B5
B6
BRIDGE6
BRIDGE6
BRIDGE6
DGND
C3
C4
C50V/6800U
C9
C10
C50V/6800U
C15
C16
C50V/6800U
C21
C22
C50V/6800U
38..32 Volt
+
C63V/2200U
18..15 Volt
+
+
+
+
+
C25
C28
R31RR4
+
C5
R51RR6
C50V/6800U
R101RR11
+
C11
R121RR13
C50V/6800U
R171RR18
+
C17
R191RR20
C50V/6800U
R241RR25
C23
+
R261RR27
C50V/6800U
C26
U1
U2
C29
C24
C6
C12
C18
1R
R7
10K0
1R
1R
R33
R32
CN1
16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
16PIN
+24V
1R
+9V
1R
R14
10K0
1R
1R
R21
10K0
1R
1R
R28
10K0
1R
DGND
+9V
+24V
VoutVin
C27
+
C50V/330U
R34
10K0
GND
7824
7809
VoutVin
C30
+
GND
R35
10K0
T1
R-CORE 50VA
120V
14V
14V
14V
120V
14V
5 4 3 2 1
PE
PE
T2
R-CORE 50VA
120V
14V
14V
14V
120V
14V
PE
T3
R-CORE 50VA
120V
14V
14V
14V
120V
14V
PE
DGND
C63V/2200U
C50V/330U
30
SPHINX Project Eight Service Manual
Figure 20: PCB drawings
Because there is a significant image-quality loss during the conversion of the drawings, The PCB-drawings are located in separate files. These files are in PDF-format (Adobé Acrobat 3.0 Reader)
Project 8 mainboard (A3 format)
“PJ-8A3mainboard.pdf”
Project 8 mainboard (A4 format)
“PJ-8A4mainboard.pdf”
Project 8 Disamp Module (A4 format)
“Pj-8disamp.pdf”
Project 8 Display Module (A4 format)
“Pj-8display.pdf”
Project 8 Power Supply (A4 format)
“Pj-8powersupply.pdf”
31
SPHINX Project Eight Service Manual
Parts List
Designator Part Type Description
B1 BRIDGE6 Bridge rectifier B2 BRIDGE6 Bridge rectifier B3 BRIDGE6 Bridge rectifier B4 BRIDGE6 Bridge rectifier B5 BRIDGE6 Bridge rectifier B6 BRIDGE6 Bridge rectifier
C1 100NMKT Capacitor C1 330N/PP Capacitor C1 33p Capacitor
C1 47n Capacitor C10 100NMKT Capacitor C10 C25V/47U Capacitor C10 C63V/1000U Capacitor C100 100NMKT Capacitor C101 100NMKT Capacitor C102 100NMKT Capacitor C103 100NMKT Capacitor C104 100NMKT Capacitor C105 100NMKT Capacitor C106 C63V/2200U Capacitor C107 47N/PP Capacitor C108 47N/PP Capacitor C109 C63V/2200U Capacitor C11 C25V/47U Capacitor C11 C50V/6800U Capacitor C11 C63V/1000U Capacitor C110 C63V/2200U Capacitor C111 47N/PP Capacitor C112 47N/PP Capacitor C113 C63V/2200U Capacitor C114 C63V/2200U Capacitor C115 47N/PP Capacitor C116 47N/PP Capacitor C117 C63V/2200U Capacitor C118 C63V/2200U Capacitor C119 47N/PP Capacitor C12 330N/PP Capacitor C12 C25V/47U Capacitor C12 C50V/6800U Capacitor C120 47N/PP Capacitor C121 C63V/2200U Capacitor C122 220p Capacitor C123 220p Capacitor C124 220p Capacitor C125 220p Capacitor C13 100NMKT Capacitor C13 C50V/330U Capacitor C14 100NMKT Capacitor C14 47N/PP Capacitor C15 100NMKT Capacitor C15 47N/PP Capacitor C16 100NMKT Capacitor C16 C50V/330U Capacitor C17 C50V/330U Capacitor C17 C50V/6800U Capacitor C18 47N/PP Capacitor C18 C50V/6800U Capacitor C19 100NMKT Capacitor C19 47N/PP Capacitor C2 100NMKT Capacitor C2 33p Capacitor C2 47n Capacitor
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SPHINX Project Eight Service Manual
Designator Part Type Description
C2 C63V/1000U Capacitor C20 100NMKT Capacitor C20 C50V/330U Capacitor C21 100NMKT Capacitor C21 330N/PP Capacitor C22 100NMKT Capacitor C22 330N/PP Capacitor C23 330N/PP Capacitor C23 C50V/6800U Capacitor C24 330N/PP Capacitor C24 C50V/6800U Capacitor C25 22N/PP Capacitor C25 C63V/2200U Capacitor C26 100NMKT Capacitor C26 C50V/330U Capacitor C27 C50V/330U Capacitor C27 C50V/330U Capacitor C28 22N/PP Capacitor C28 C63V/2200U Capacitor C29 100NMKT Capacitor C29 22N/PP Capacitor C3 100NMKT Capacitor C3 220n Capacitor C3 470pF Capacitor C3 C63V/1000U Capacitor C30 C50V/330U Capacitor C30 C50V/330U Capacitor C31 C50V/330U Capacitor C32 22N/PP Capacitor C33 C63V/2200U Capacitor C34 22N/PP Capacitor C35 C50V/330U Capacitor C36 C50V/330U Capacitor C37 22N/PP Capacitor C38 C63V/2200U Capacitor C39 C63V/2200U Capacitor C4 100NMKT Capacitor C4 220n Capacitor C4 47pF Capacitor C4 C63V/1000U Capacitor C40 22N/PP Capacitor C41 C50V/330U Capacitor C42 C50V/330U Capacitor C43 22N/PP Capacitor C44 C63V/2200U Capacitor C45 C63V/2200U Capacitor C46 47N/PP Capacitor C47 47N/PP Capacitor C48 C63V/2200U Capacitor C49 C63V/2200U Capacitor C5 10n Capacitor C5 220n Capacitor C5 C50V/6800U Capacitor C5 C63V/1000U Capacitor C50 47N/PP Capacitor C51 47N/PP Capacitor C52 C63V/2200U Capacitor C53 C63V/2200U Capacitor C54 47N/PP Capacitor C55 47N/PP Capacitor C56 C63V/2200U Capacitor C57 47N/PP Capacitor C58 47N/PP Capacitor C59 C63V/2200U Capacitor C6 10n Capacitor C6 220n Capacitor C6 330N/PP Capacitor C6 C50V/6800U Capacitor C60 C63V/2200U Capacitor
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SPHINX Project Eight Service Manual
Designator Part Type Description
C61 220p Capacitor C62 220p Capacitor C63 220p Capacitor C64 220p Capacitor C65 100NMKT Capacitor C66 100NMKT Capacitor C67 100NMKT Capacitor C68 100NMKT Capacitor C69 100NMKT Capacitor C7 100NMKT Capacitor C7 330N/PP Capacitor C7 3U3/63V Capacitor C7 C25V/47U Capacitor C70 100NMKT Capacitor C71 100NMKT Capacitor C72 100NMKT Capacitor C73 100NMKT Capacitor C74 C50V/330U Capacitor C75 100NMKT Capacitor C76 100NMKT Capacitor C77 100NMKT Capacitor C78 100NMKT Capacitor C79 100NMKT Capacitor
C8 100NMKT Capacitor C8 C25V/47U Capacitor C8 C47U/16V Capacitor C8 C63V/1000U Capacitor C80 100NMKT Capacitor C81 100NMKT Capacitor C82 100NMKT Capacitor C83 100NMKT Capacitor C84 100NMKT Capacitor C85 100NMKT Capacitor C86 100NMKT Capacitor C87 100NMKT Capacitor C88 100NMKT Capacitor C89 100NMKT Capacitor C9 100NMKT Capacitor C9 470U/16V Capacitor C9 C25V/47U Capacitor C9 C63V/1000U Capacitor C90 100NMKT Capacitor C91 100NMKT Capacitor C92 100NMKT Capacitor C93 C50V/330U Capacitor C94 100NMKT Capacitor C95 100NMKT Capacitor C96 100NMKT Capacitor C97 100NMKT Capacitor C98 100NMKT Capacitor C99 100NMKT Capacitor
CN1 16PIN Connector CN1 18PIN Connector CN1 4PIN Connector CN1 KAST_GND Connector CN1 XLR MALE Connector CN10 CINCH Connector CN11 CINCH Connector CN12 CINCH Connector CN13 CINCH Connector CN14 CINCH Connector CN15 CINCH Connector CN16 CINCH Connector CN17 CINCH Connector CN18 CINCH Connector CN19 CINCH Connector CN2 20PIN Connector
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SPHINX Project Eight Service Manual
Designator Part Type Description
CN2 4PIN Connector CN2 5PIN Connector CN2 XLR MALE Connector CN20 CINCH Connector CN21 XLR FEMALE Connector CN22 XLR FEMALE Connector CN23 XLR FEMALE Connector CN24 XLR FEMALE Connector CN3 4PIN Connector CN3 XLR MALE Connector CN4 8PIN Connector CN4 XLR MALE Connector CN5 CINCH Connector CN6 CINCH Connector CN7 CINCH Connector CN8 CINCH Connector CN9 CINCH Connector
D1 1N4004 Diode D1 1N4148 Diode D1 1N4148 Diode D10 1N4148 Diode D11 1N4148 Diode D12 1N4148 Diode D2 1N4004 Diode D2 1N4148 Diode D3 1N4004 Diode D3 1N4148 Diode D4 1N4004 Diode D4 1N4148 Diode D5 1N4004 Diode D6 1N4004 Diode D7 1N4004 Diode D8 1N4004 Diode D9 1N4148 Diode
IR1 IRIC Infrared receiver
J1 Jumper R Jumper J2 Jumper R Jumper J3 Jumper R Jumper
LD1 LD RD LED LD1 LD RD LED LD2 LD RD LED LD2 LD RD LED LD3 LD RD LED LD3 LD RD LED LD4 LD RD LED LD4 LD RD LED LD5 LD RD LED LD6 LD RD LED
OPT1 OPTOUT optical output OPT2 OPTOUT optical output OPT3 OPTOUT optical output
P1 50R Var. Resistor P2 50R Var. Resistor
R1 100R Resistor R1 1R Resistor
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SPHINX Project Eight Service Manual
Designator Part Type Description
R1 27K4 Resistor R1 4k75 Resistor R10 1R Resistor R10 1R00 Resistor R10 4K75 Resistor R100 20K0 Resistor R101 80R6 Resistor R102 10K0 Resistor R103 40R2 Resistor R104 10K0 Resistor R105 40R2 Resistor R106 10K0 Resistor R107 40R2 Resistor R108 10K0 Resistor R109 40R2 Resistor R11 15R0 Resistor R11 1R Resistor R11 600R Resistor R110 5K23 Resistor R111 20R0 Resistor R112 5K23 Resistor R113 20R0 Resistor R114 5K23 Resistor R115 20R0 Resistor R116 5K23 Resistor R117 20R0 Resistor R118 2K61 Resistor R119 10R0 Resistor R12 15R0 Resistor R12 1R Resistor R12 600R Resistor R120 2K61 Resistor R121 10R0 Resistor R122 2K61 Resistor R123 10R0 Resistor R124 2K61 Resistor R125 10R0 Resistor R126 1K30 Resistor R127 0R00 Resistor R128 1K30 Resistor R129 0R00 Resistor R13 18R0 Resistor R13 1R Resistor R13 1R00 Resistor R130 1K30 Resistor R131 0R00 Resistor R132 1K30 Resistor R133 0R00 Resistor R134 649R Resistor R135 634K Resistor R136 649R Resistor R137 634K Resistor R138 649R Resistor R139 634K Resistor R14 10K0 Resistor R14 18R0 Resistor R14 1R00 Resistor R140 649R Resistor R141 634K Resistor R142 2K00 Resistor R143 2K00 Resistor R144 2K00 Resistor R145 2K00 Resistor R146 2K00 Resistor R147 2K00 Resistor R148 2K00 Resistor R149 2K00 Resistor R15 10R0 Resistor R15 15R0 Resistor
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SPHINX Project Eight Service Manual
Designator Part Type Description
R15 1R Resistor R150 1R00 Resistor R151 1R00 Resistor R152 1R00 Resistor R153 1R00 Resistor R154 1R00 Resistor R155 1R00 Resistor R156 1R00 Resistor R157 1R00 Resistor R158 10K0 .1% Resistor R159 10K0 .1% Resistor R16 1R Resistor R16 2K21 Resistor R16 332R Resistor R160 20K0 .1% Resistor R161 20K0 .1% Resistor R162 10K0 .1% Resistor R163 10K0 .1% Resistor R164 20K0 .1% Resistor R165 20K0 .1% Resistor R166 50K0 Resistor R167 50K0 Resistor R168 50K0 Resistor R169 50K0 Resistor R17 10K0 Resistor R17 1R Resistor R17 51R0 Resistor R170 1K00 Resistor R171 1K00 Resistor R172 1K00 Resistor R173 1K00 Resistor R174 10R0 Resistor R175 33K2 Resistor R176 33K2 Resistor R18 1R Resistor R18 2K00 Resistor R18 2K21 Resistor R19 1R Resistor R19 2K00 Resistor R19 2K21 Resistor R2 10K0 Resistor R2 1R Resistor R2 243R Resistor R2 4k75 Resistor R20 1R Resistor R20 2K00 Resistor R20 2K21 Resistor R21 10K0 Resistor R21 10K0 Resistor R21 2K21 Resistor R22 1R Resistor R22 332R Resistor R22 51R0 Resistor R23 10K0 Resistor R23 1R Resistor R23 2K21 Resistor R24 1R Resistor R24 200R Resistor R24 2K00 Resistor R25 1R Resistor R25 200R Resistor R25 2K00 Resistor R26 100R Resistor R26 1R Resistor R26 2K00 Resistor R27 100R Resistor R27 10K0 Resistor R27 1R Resistor R28 100R Resistor
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SPHINX Project Eight Service Manual
Designator Part Type Description
R28 10K0 Resistor R28 332R Resistor R29 1R Resistor R29 243R Resistor R29 332R Resistor R3 1R Resistor R3 4k75 Resistor R3 51R0 Resistor R3 5R62 Resistor R30 1R Resistor R30 200R Resistor R30 2K00 Resistor R31 100R Resistor R31 2K00 Resistor R32 100K Resistor R32 1R Resistor R32 200R Resistor R33 1R Resistor R33 243R Resistor R33 3K32 Resistor R34 10K0 Resistor R34 33K2 Resistor R34 3K32 Resistor R35 10K0 Resistor R35 3K32 Resistor R36 3K32 Resistor R37 8K25 Resistor R38 8K25 Resistor R39 8K25 Resistor R4 10R0 Resistor R4 1R Resistor R4 22K1 Resistor R4 61K9 Resistor R40 8K25 Resistor R41 1R00 Resistor R42 1R00 Resistor R43 1R00 Resistor R44 1R00 Resistor R45 10K0 Resistor R46 1K00 Resistor R47 1K00 Resistor R48 10K0 Resistor R49 10K0 Resistor R5 1R Resistor R5 22K1 Resistor R5 24R9 Resistor R5 68K1 Resistor R50 1K00 Resistor R51 1K00 Resistor R52 10K0 Resistor R53 100K Resistor R54 1R00 Resistor R55 1R00 Resistor R56 1R00 Resistor R57 1R00 Resistor R58 1R00 Resistor R59 1R00 Resistor R6 10R0 Resistor R6 1R Resistor R6 22K1 Resistor R60 1R00 Resistor R61 1R00 Resistor R62 100K Resistor R63 10K0 .1% Resistor R64 10K0 .1% Resistor R65 10K0 .1% Resistor R66 10K0 .1% Resistor R67 10K0 .1% Resistor R68 10K0 .1% Resistor
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SPHINX Project Eight Service Manual
Designator Part Type Description
R69 100K Resistor R7 10K0 Resistor R7 22K1 Resistor R7 51R0 Resistor R70 100K Resistor R71 100K Resistor R72 100K Resistor R73 100K Resistor R74 2x0.3 silver Resistor R75 2x0.3 zilver Resistor R76 2x0.3 zilver Resistor R77 2x0.3 zilver Resistor R78 84K5 Resistor R79 324R Resistor R8 15R0 Resistor R8 1R Resistor R8 243R Resistor R80 84K5 Resistor R81 324R Resistor R82 84K5 Resistor R83 324R Resistor R84 84K5 Resistor R85 324R Resistor R86 39K2 Resistor R87 162R Resistor R88 39K2 Resistor R89 162R Resistor R9 100R Resistor R9 1R Resistor R9 1R00 Resistor R90 39K2 Resistor R91 162R Resistor R92 39K2 Resistor R93 162R Resistor R94 20K0 Resistor R95 80R6 Resistor R96 20K0 Resistor R97 80R6 Resistor R98 20K0 Resistor R99 80R6 Resistor
RL1 REL16 Relay 24V RL10 REL16 Relay 24V
RL11 REL16 Relay 24V RL12 REL16 Relay 24V RL13 REL16 Relay 24V RL14 REL16 Relay 24V RL15 REL16 Relay 24V RL16 REL16 Relay 24V RL17 REL16 Relay 24V RL18 REL16 Relay 24V RL19 REL16 Relay 24V RL2 REL16 Relay 24V RL20 REL16 Relay 24V RL21 REL16 Relay 24V RL22 REL16 Relay 24V RL23 REL16 Relay 24V RL24 REL16 Relay 24V RL25 REL16 Relay 24V RL26 REL16 Relay 24V RL27 REL16 Relay 24V RL28 REL16 Relay 24V RL29 REL16 Relay 24V RL3 REL16 Relay 24V RL30 REL16 Relay 24V RL31 REL16 Relay 24V RL32 REL16 Relay 24V
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SPHINX Project Eight Service Manual
Designator Part Type Description
RL33 REL16 Relay 24V RL34 REL16 Relay 24V RL35 REL16 Relay 24V RL36 REL16 Relay 24V RL37 REL16 Relay 24V RL38 REL16 Relay 24V RL39 REL16 Relay 24V RL4 REL16 Relay 24V RL40 REL16 Relay 24V RL41 REL16 Relay 24V RL42 REL16 Relay 24V RL43 REL16 Relay 24V RL44 REL16 Relay 24V RL45 REL16 Relay 24V RL46 REL16 Relay 24V RL47 REL16 Relay 24V RL48 REL16 Relay 24V RL49 REL16 Relay 24V RL5 REL16 Relay 24V RL50 REL16 Relay 24V RL51 REL16 Relay 24V RL52 REL16 Relay 24V RL53 REL16 Relay 24V RL54 REL16 Relay 24V RL55 REL16 Relay 24V RL56 REL16 Relay 24V RL57 REL16 Relay 24V RL58 REL16 Relay 24V RL59 REL16 Relay 24V RL6 REL16 Relay 24V RL60 REL16 Relay 24V RL7 REL16 Relay 24V RL8 REL16 Relay 24V RL9 REL16 Relay 24V
S1 ENCOD Encoder S2 ENCOD Encoder
S3 DRUK-TOETS Switch S4 DRUK-TOETS Switch S5 DRUK-TOETS Switch
SP1 SILPAD Soldering pad SP10 SILPAD Soldering pad SP11 SILPAD Soldering pad SP12 SILPAD Soldering pad SP13 SILPAD Soldering pad SP14 SILPAD Soldering pad SP15 SILPAD Soldering pad SP16 SILPAD Soldering pad SP2 SILPAD Soldering pad SP3 SILPAD Soldering pad SP4 SILPAD Soldering pad SP5 SILPAD Soldering pad SP6 SILPAD Soldering pad SP7 SILPAD Soldering pad SP8 SILPAD Soldering pad SP9 SILPAD Soldering pad
T1 R-CORE 50VA Transformer T2 R-CORE 50VA Transformer T3 R-CORE 50VA Transformer
T1 A1306 Transistor T1 C3298 Transistor
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SPHINX Project Eight Service Manual
Designator Part Type Description
T2 C2240 Transistor T2 C3298 Transistor T3 A1145 Transistor T3 A1306 Transistor T4 C2705 Transistor T4 C3298 Transistor T5 A1145 Transistor T5 A970 Transistor T6 A1306 Transistor T6 C2705 Transistor T7 C2240 Transistor T7 C3298 Transistor T8 A970 Transistor T8 C2240 Transistor T9 A1306 Transistor T9 K389 Transistor T10 C3298 Transistor T10 J109 Transistor T11 A970 Transistor T11 C2240 Transistor T12 A1306 Transistor T12 A970 Transistor T13 A970 Transistor T13 A970 Transistor T14 C2240 Transistor T14 C2240 Transistor T15 A970 Transistor T16 C2240 Transistor
U1 7824 Stab. IC U2 7809 Stab. IC U20 MC7805T Stab. IC
U1 16PIN Connector
U1 H8/325 Microprocessor U10 DISAMPMODULE DISCRETE OPAMP MODULE
U11 DISAMPMODULE DISCRETE OPAMP MODULE U12 DISAMPMODULE DISCRETE OPAMP MODULE U13 DISAMPMODULE DISCRETE OPAMP MODULE
U14 UCN5801 Driver IC U15 UCN5801 Driver IC U16 UCN5801 Driver IC U17 UCN5801 Driver IC U18 UCN5801 Driver IC U21 UCN5801 Driver IC
U19 18PIN Connector
U2 MAX690 Reset IC U2 OP604 Opamp
U3 OP604 Opamp U4 OP604 Opamp U5 OP604 Opamp
U22 DISAMPMODULE DISCRETE OPAMP MODULE U23 DISAMPMODULE DISCRETE OPAMP MODULE U24 DISAMPMODULE DISCRETE OPAMP MODULE U25 DISAMPMODULE DISCRETE OPAMP MODULE
U3 8M X-TAL U4 93C46 EEPROM
U6 LM329DZ ZENER Diode
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SPHINX Project Eight Service Manual
Designator Part Type Description
U7 LM329DZ ZENER Diode U8 LM329DZ ZENER Diode U9 LM329DZ ZENER Diode
©1998 Audioscript BV Version: May 13, 1998
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