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Thank´s for your help, I already recived these manual from you
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Thank you for your manual It has the basic things to and i use the Oszi for Longer Time.
THX
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Actually, I was looking for this information for 3 years!...now thanks to you, the manual is on my hands and of great help, cause I understand now where I was doing wrong connections and wires...excellent, I'll be back to you if in need, thank you.
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This manual covers the main equipment features only. While it also includes the procedure for saving and loading from the now long obsolete memory cards it does not mention the how to operate with the optional floppy drive interface so I am still at a loss about how to use this! Note that there is a separate manual covering the MIDI interface and programming via the keyboard, not included in this download. You will also need to get hold of this if you want to use the MIDI interface properly. Basically there is little difference between this manual and the free to download manual for the similar PR60 model.
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Good list of manuals. I found a very rare one and easily get. Should be promptly to download, as we must to wait hours even after confirmed payment.
8-4.
Focus Servo Circuit
As shown in Fig. 8-5., the photoelectric current output from the optical block A to D detectors is input to the RF amplifier (IC501), converted to voltage by the I-V amplifier inside, passed through the ABCD amplifier and F.E. (focus error) amplifier, and the ABCD signal is output from Pin #� (ABCD) while the focus error signal is output from Pin #§ (FE) to the DSP/digital servo (IC601). The A to D I-V amplifiers each have a gain switch for adjusting level. Using the serial data input from the system controller (IC801) via the serial bus (SBUS), initial settings of the gain is performed together with ABCD level adjustment according to the disc type each time PLAY, etc. to obtain the optimum output. To perform these, the system controller reads the ABCD level data A/D converted from the DSP/digital servo (IC601) and control the gain switch so that the data becomes the prescribed level. The input of the DSP/digital servo (IC601) is incorporated with an A/D converter, which converts the ABCD signal and the FE signal to 7-bit data at sampling frequencies of 22.05 kHz (fs/2) and 88.2 kHz (2 fs) respectively. The focus error signal is then subject to servo calculation in the DSSP (digital servo signal processor) block, converted to the 88.2 kHz PWM wave, and used to control the focus coil via the servo driver (IC551) and LPF (low pass filter). In addition to the ABCD level adjustment mentioned earlier, the A/D converted ABCD signal data is also compared with the reference level preset with the serial data from the system controller, and the FOK (focus OK) detection signal is output to the system controller via the serial bus (SBUS). The focus gain and focus bias adjustments are performed in the adjustment mode, the adjustment values are stored in the nonvolatile memory, the data is sent to the servo circuit via the serial bus (SBUS) at starting to set the focus gain and focus bias adjustment data. In the case of focus bias, data on the bias amount during adjustment is sent to the DSSP block, added to the focus error signal, and used to drive the focus coil.
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 $4.99 MZE30 SONY
Service Manual Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagr…
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