SERVICE MANUAL Power Plant Premier
Contents
1. PS AUDIO Serial numbers PPP 7J and earlier Document 11 037 01 1 DSM A Heleased 01 08 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 V PS AUDIO 1 Place the unit upside down on a well protected working surface 2 Tape the side panels so they are not damaged during disassembly and reassembly Make sure the tape is stopped before the back panel 3 Remove the 4 corner screws from the back panel 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 PS AUDIO 4 Remove 10 screws from the bottom as shown V PS AUDIO 5 Hold the top and bottom together and turn the unit over 6 TORNA a 82 Er MNT x Yi Hast x e a 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 Power Issues 1 Nothing happens when power is applied to the Premier a Check Replace F1 and F2 on the Power Inlet Assembly e Slow Blow 5A 10MM TDA fuses b Replace the Power Cartridge 2 The circuit breaker in the wall trips when power is applied to the premier a Replace the Power Cartridge b Replace the Power Transformer Regulation Issues 1 The Bypass Relay never enables the regulated output a Replace the Regulator PCA and Darlington transistors Q1 Q2 Q3 and Q4 2 he Bypass Relay clicks in and out a Replace the Regulator and Darlin2. H 720 406 8946 FX 720 406 8967 To replace the Main PCA remove the four corner screws being careful to not lose the stand off spacers The thermal sensor R10 is mounted on the bottom side of the PCA so it can protrude into the heat sink This thermal sensor is sometimes glued into the insulating spacer Better seen in next picture 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 p POWER CARTRIDGE REPLACEMENT Remove the machine screws from above and below the power cartridge using a 5 1 6 inch hex driver WD rm T ES ae E Pry the power cartridge from the in let assembly using a flat head screwdriver The power button on the power cartridge will catch on the rear bezel after about 7 inch of movement 4 wem 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 m SEP ONO 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 First check to make sure that all connections to the Main PCA are good Next check to make sure that the fan driver transistor Q6 is a BC337G and that it is installed up side down compared to the silk screen on the Main PCA Use an Ohm Meter to measure for shorts between the Q6 transistor legs If a short is measured look for a solder bridge between the transistor legs on b
3. g Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 PartDescription PartDescription Manufacturer Part Number Number PS Kit includes 2 fuses Littlefuse 021 8005 HXP PECARFUS M amp PREMXFMRPi PS Kit includes transistor a heat sink On Semiconductor BC337G Power Transistor Kit PS Audio MS PREM TRANSISTORS 2 MJ11032 Transistor a MJ11033 Transistor 4 Insulator Sil Pads MJ11 c TO3 Transistor On Semiconductor MJ11032G MJ11033G Transistor On Semiconductor MJ11033G Insulator Sil Pads Bergquist SP900S 05 Regulator PCB Kit parts for 5 boards PS Audio MS PREM AVR KIT 10 MMBT06 10 MMBT56 10 BAV99 10 10 ohm 0805 10 47 ohm 0805 20 0 12 ohm 5W 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 V PS AUDIO Schematics drawings manuals and other product documentation are available online to PS Audio distributors The URL is http download psaudio com Contact your sales representative to register 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967
4. gton transistors Q1 Q2 and Q4 Display Issues 1 The Premier is regulating but there is no Display a Verify there is 8VAC to the Display Board connector J1 Orange Wires b Replace the Premier Display PCA 2 Display elements are missing a Replace the Premier Display PCA Sequencer IsoZone Issues 1 Sequencer IsoZone switches are not working a Replace the IsoZone Control Ribbon Cable b Replace the Display PCA c Replace the IsoZone Power Outlet Assembly CleanWave 1 CleanWave not Visible a Verify that there is 15uf of capacitance on the input b Lookfor shorts on the back of the Regulator PCA between the pins of J2 c Replace the Regulator Control Ribbon Cable d Replace the Display PCA e Replace the Regulator PCA and Darlington transistors Q1 Q2 Q3 and Q4 MultiWave 1 MultiWave not Visible a Lookfor shorts on the back of the Regulator PCA between the pins of J2 b Replace the Regulator Control Ribbon Cable c Replace the Display PCA d Replace the Regulator PCA and Darlington transistors Q1 Q2 and Q4 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 Remote Control Issues 1 Remote not Functioning a Heplace the batteries in the Remote Control b Replace the Remote Control c Replace the Display PCA Fan Issues 1 Fans won t turn a Verify the fans are correctly plugged into the small fan interconnect PCA b Carefully replace Q6 on the Regula
5. oth sides of the board If a short is measured and no solder bridges are found replace Q6 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 With the unit in standby press the Mode Down Mode Up and Power Button Logo simultaneously The 3 digit display should light up The logo and buttons should not be backlit This tells you that you are in calibration mode The first reading on the display is the incoming voltage To scroll to other readings press the Display button It will scroll through the readings in the following order 1 Input Voltage Lights On Input Volts 2 Output Voltage Lights On Diff Volts 3 Input Distortion Lights On Input Dist 96 4 Output Distortion Lights On Reduct Dist 96 otart with the Input Voltage Calibration a Make sure the Input Volts Lights Are On b Use the mode up down buttons to calibrate the reading until the reading matches the actual input voltage Now Calibrate The Output Voltage a Press the Display button once b Make sure the Diff Volts Lights Are On c Use the mode up down buttons to calibrate the reading until the reading matches the actual output voltage NOTE regenerator is not active during display calibration Distortion readings do not normally need calibration but they can be adjusted the same way Press the power button to turn the unit off Turn unit back on in normal mode 4826 Sterlin
6. tor PCA MFG PN BC3376G TO92 i Replace the Q6 Heat Sink using thermal compound 2 Fans wont stop after Power Up a Check to make sure that all connections to the Main PCA are good b Verify that the correct fan driver transistor Q6 is installed i For units with one large and one small fan Q6 should be a BC337G and that it is installed up side down compared to the silk screen on the Main PCA Repairing the Regulator PCB Assembly advanced 1 For qualified technicians who wish to repair the regulator PCB Assembly on the component level most situations will require replacing the following components We recommend that all of these parts be replaced at once Q11 014 MMBTA56 Q12 Q13 MMBTAOO R43 R44 10 ohms R39 R40 47 ohms D13 D14 BAV99 R11 R14 0 12 ohm 5W Original boards use 0 05 ohm When repairing boards replace all 4 resistors with 0 12 ohm 2 Allof the above parts are available in a repair kit See parts list 9o00o0p 4826 Sterling Drive Boulder CO 80301 PH 720 406 8946 FX 720 406 8967 To replace the Darlington transistors remove 4 mounting screws on each heat sink The TO3 Insulator Sil Pads should always be replaced when a transistor is reinstalled for any reason After replacement the Darlington transistor mounting screws must be torqued to 8 inch pounds If a transistor has failed be certain to test the emitter resistors R11 R14 4826 Sterling Drive Boulder CO 80301 P
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