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Related Manuals for SPHINX Myth11
Summary of Contents for SPHINX Myth11
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Page 1: Service Manual
SERVICE MANUAL MYTH 11 STEREO POWER AMPLIFIER PROTECT STANDBY POWER... -
Page 2: Table Of Contents
SPHINX Myth 11 Service Manual 1. UNPACKING ............................3 2. CONTACTING THE MANUFACTURER.....................3 3. THE POWER AMP AT A GLANCE ....................4 Front panel..............................4 Rear panel ..............................5 4. OPERATION ............................6 Power on..............................6 Power off..............................6 5. TECHNICAL SPECIFICATIONS......................7 6. ADJUSTMENT PROCEDURES......................8 Bias................................ -
Page 3: Unpacking
The Sphinx Myth 11 design 1. UNPACKING This service manual will help you to optimally Before leaving the factory every Myth 11 is service and repair the Sphinx Myth 11 Stereo subjected to stringent and extensive technical and Power Amplifier. exterior quality inspection. -
Page 4: The Power Amp At A Glance
SPHINX Myth 11 Service Manual 3. THE POWER AMP AT A GLANCE Front panel PROTECT STANDBY POWER STANDBY: To switch the component on and off. STANDBY LED: Indicates the selected function: stand-by POWER LED: Indicates the selected function: amp on... -
Page 5: Rear Panel
CONTROL IN: To connect the optical cable from AC POWER: Connect the power amp to a another Sphinx component like a pre-amp. mains outlet (230 - 240 VAC) and the mains INPUT: To connect the cinch cables from the power switch. -
Page 6: Operation
From now on you should switch the power amp on and off with the STANDBY button (1) on the front panel or the STANDBY button of another Sphinx component connected to the optical CONTROL IN jack. This way all circuits will remain at working temperature and the audio quality will be 100 % within 15 minutes after activating. -
Page 7: Technical Specifications
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. -
Page 8: Adjustment Procedures
SPHINX Myth 11 Service Manual Offset ADJUSTMENT PROCEDURES The Offset adjustment procedure minimises the DC The Myth 11 only has three parameters for each offset value of the amplifier output. This DC offset is channel (so six in total) that might need adjustment: important when capacitive loads are used, such as electrostatic loudspeakers. -
Page 9: Problems And Solutions
At the moment of writing the Myth 11 has one Please also send (by fax or e-mail) the specific known specific problem. information to the Sphinx International Service If in the future you encounter any problem(s) you Department (see page 3): this info can then be may enter the info in this table. -
Page 10: Diagrams And Parts Lists
SPHINX Myth 11 Service Manual 8. 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). Modificatie tegen brommen. TO RIGHT AMP... -
Page 11: Measurement Set-Up
SPHINX Myth 11 Service Manual Measurement Set-up SCOOP THD ANALYZER Oscillator Frequency Amplitude time/div out1 out2 inp1 inp1 inp2 THD out inp2 out1 out2 Scoop Left Right inp1 inp2 SWITCH-BOX MYTH 11... -
Page 12: General Overview Myth 11
SPHINX Myth 11 Service Manual General Overview Myth 11 Myth 11 protection Myth 11 input Myth 11 rectifier M11-prot.sch M11-inp.sch M11-rect.sch Myth 11 amplifier left Myth 11 amplifier right M11-ampl.sch M11-ampr.sch... -
Page 13: Power Supply
SPHINX Myth 11 Service Manual Power Supply 1N4007 AC1_SEC1 +50V1 220u/63V AC1_SEC2 1N4007 GND_BEV 220n/250V 220n/250V 220n/250V 220n/250V +OUT1 220n/250V 220n/250V 220n/250V SB356 220n/250V SB356 AC4_SEC1 AC4_SEC2 -OUT1 AC2_SEC1 AC2_SEC2 GNDOUT1 AC3_SEC1 AC3_SEC2 NTC1 NTC-3 FASE AC-PRIM1 AC-PRIM2... -
Page 14: Amplifier Left
SPHINX Myth 11 Service Manual Amplifier Left R22L 220u/63V +50V 470p 100n 100n R16L Q10L 120k 820R 820R 2SC2705 C26L C28L C32L C34L C36L C38L C40L C42L C44L C45L C11L C12L R15L R17L R25L Q12L 2SC4382 AGND AGND 1N4007 R28L... -
Page 15: Amplifier Right
SPHINX Myth 11 Service Manual Amplifier Right R22R 220u/63V +50V 470p 100n 100n R16R Q10R 120k 820R 820R 2SC2705 C26R C28R C32R C34R C36R C38R C40R C42R C44R C45R C11R C12R R15R R17R R25R Q12R 2SC4382 AGND AGND 1N4007 R28R... -
Page 16: Input / Output
SPHINX Myth 11 Service Manual Input / Output INPUT RSIG LSIG RGND LGND OPTO+ OPTO AMP_PHTRAN OPTO-... -
Page 17: Control
SPHINX Myth 11 Service Manual Control +50V +50V 470R/2W 470R/2W DGND led protect 390R 10u/16V 560R 100n DGND DGND DGND led stand_by 390R 100n 100n 1u/16V DGND DGND DGND power led 100n 100n 390R PTC2 PTC1 100n DGND DGND DGND... -
Page 18: Parts List
SPHINX Myth 11 Service Manual Parts List Designator Part Type Description 100n MKT capacitor 220n/250V MKT capacitor 100n MKT capacitor C10L 100u/16V Electrolytic capacitor C10L 1PIN Connector C10R 100u/16V Electrolytic capacitor 100n MKT capacitor C11L 220u/63V Electrolytic capacitor C11R 220u/63V... - Page 19 SPHINX Myth 11 Service Manual Designator Part Type Description 220p Styroflex capacitor 100n MKT capacitor 220n/250V MKT capacitor C32L 2200u/63V Electrolytic capacitor C32R 2200u/63V Electrolytic capacitor C33L 2200u/63V Electrolytic capacitor C33R 2200u/63V Electrolytic capacitor C34L 2200u/63V Electrolytic capacitor C34R 2200u/63V...
- Page 20 SPHINX Myth 11 Service Manual Designator Part Type Description 100n MKT capacitor 100n MKT capacitor 100n MKT capacitor 220n/250V MKT capacitor 1PIN Connector MKT capacitor MKT capacitor 100n MKT capacitor 220n/250V MKT capacitor 1PIN Connector 220n MKT capacitor 220n MKT capacitor...
- Page 21 SPHINX Myth 11 Service Manual Designator Part Type Description 200R Adj. potmeter 200R Adj. potmeter 500R Adj. potmeter 500R Adj. potmeter BD879 Transistor Q10L 2SC2705 Transistor Q10R 2SC2705 Transistor Q11L 2SA1145 Transistor Q11R 2SA1145 Transistor Q12L 2SC4382 Transistor Q12R 2SC4382...
- Page 22 SPHINX Myth 11 Service Manual Designator Part Type Description R10L Resistor R10R Resistor Resistor R11L 1k00 Resistor R11R 1k00 Resistor Resistor R12L 475R Resistor R12R 475R Resistor 560R Resistor R13L Resistor R13R Resistor 390R Resistor R14L Resistor R14R Resistor 390R...
- Page 23 SPHINX Myth 11 Service Manual Designator Part Type Description R26L Resistor R26R Resistor Resistor R27L 56R/2W Resistor R27R 56R/2W Resistor R28L 100R Resistor R28R 100R Resistor R29L Resistor R29R Resistor Resistor Resistor Resistor R30L 0R22/5W Resistor R30R 0R22/5W Resistor R31L...
- Page 24 SPHINX Myth 11 Service Manual Designator Part Type Description Resistor 820R Resistor 820R Resistor Resistor Resistor Resistor REL1L SCHRA_4W Relay REL1R SCHRA_4W Relay SWITCH-SPST Switch SWITCH-SPST Switch PIC16C71 Micro processor...
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