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The service manual is as described and received the link to the download sooner than expected. Great service, quality product. This site is a big help in the electronics repair business.
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Il service manual molto accurato. Rapidi nella risposta
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Quick site processing. A complete and very useful manual with all details. Thank you!
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Quick service response. A useful and very rare service manual with all details. I recomend this service.
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I ordered this manual sometime in the afternoon and I received it on my e-mail the same evening.
This is a fantastically good and properly scanned copy of the original manual. All pages are of the same scale and they overlap each other. It means that you can print the manual and easily make it as a convenient paper manual.
The content of the manual is fantastic. Alignment descriptions, PCB layouts and elementary diagrams are explicit and precise. I immediately found what I was looking for. Thanks to this manual and Owner-Manuals.com my amplifier is alive again. Many thanx indded!
Adjustment
3-3-2 Adjustment after assembling (PDP Module adjustment) (1) Setting up the initial voltage and adjusting the voltage wave form of Vsetup (2) Measuring the voltage Margin of Vs and deciding the voltage (3) Adjusting and checking the voltage of DC/DC pack (Vsetup, Vscw, -Ve, -Vy) (4) Adjusting the voltage wave form of Vset-down (5) Measuring the voltage Margin of Vset-up and deciding the voltage (6) Adjusting the wave form of final voltage 3-4. Adjusting the Board Group (Applying the Jig Set) 3-4-1. Using Tools (1) Digital oscilloscope : More than 200MHz (2) DVM(Digital Multimeter) : Fluke 87 or similar one (3) Signal generator : VG-825 or similar one (4) DC power supply - DC power supply for Vs (1) : Should be changeable more than 0-200V/ more than 10A - DC power supply for Va (1) : Should be changeable more than 0-100V/ more than 5A - DC power supply for 5V (1) :Should be changeable more than 0-10V/ more than 10A - DC-DC Convertor Jig (1) : The Jig which has voltage equivalent output of PDP42V5#### Module after taking the Vs, Va, 5V voltage. - Voltage stability of power supply : Within 1% for Vs/Va, within 3% for 5V 3-4-2. Connection diagram of measuring instrument and setting up the initial voltage (1) onnection diagram of measuring instrument Refer to Fig. 8.(Connection diagram of measuring instrument that adjusting the voltage wave form) (2) Setting up the initial voltage Initially setting up voltage : Vcc:5V, Va:65V, Vs:190V But, Initially setting up voltage can be changed by the set up range according to the Module s characteristic. 3-4-3. How to Adjust (1) Adjusting the Voltage Wave form of Vsetup - Connect measuring instrument like the connection diagram Fig. 8. - Turn on the power of the measuring instrument like the <Caution> item Fig. 8. - Connect the oscilloscope probe to P4 connector (80 Pin) of Y-SUS PCB and GND. - Turn the VR1 of Y-SUS PCB and make the A wave form Fig. 9 to be 25 5 s. (2) Adjusting Vset-down Voltage Wave form Turn the VR2 of Y-SUS PCB and make the B wave form Fig. 9 to be 190 5 s. (3) Adjusting Vramp Voltage Wave form - Connect oscilloscope Probe to the B37(Pin) of Z PCB and the GND of PCB - Turn the VR3 of Z PCB and make the C wave form Fig. 10 to be 15 2 s. But, in case of not setting up the Test point, produce same output and adjust wave form connect to other pattern or parts which has no possibility of short.
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