User manual FOSTEX CR200

[. . . ] Retain instructions - The safety and operating instructions should be retained for future reference. Heed warnings - All warnings on the appliance and in the operating instructions should be adhered to. Follow instructions - All operating and use instructions should be followed. Water and Moisture - The appliance should not be used near water - for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, and the like. [. . . ] 20 32 CR200 4. 3. 17 Fine WBL Offset Adjustment Objective To adjust the gain balance of the wobble signal. Symptom when out of adjustment The unit does not record, search or pause CD-R discs. Measurement instrument connections Oscilloscope to CN104, Pin-5 (WBL) (HEAD BOARD assy) [ This connection must be via high-pass filter (180pF+3. 9k). ] GND probe can be connected to CN104, Pin-4 (AGND). [ Settings ]: 5 mV/div. , 20 S/div. , DC mode Disc STD-R03 Player state Test mode, play Adjustment location VR108 (WBL. OFS) (HEAD BOARD assy) [ Procedures ] (1) Move the pickup to midway across the disc (R = 35mm) with the MANUAL / TRACK SEARCH FWD or REV keys. (2) Press the FINALIZE key, the PLAY key and the PAUSE key in the order to close the respective servos and put the player into play mode. OFS) so that the amplitude of waveform at CN104, Pin-5 (WBL) is minimum. Out of adjustment Optimum adjustment Fig. 21 33 CR200 4. 3. 18 WBL Focus Offset Adjustment Objective To adjust the gain balance of the wobble signal. Symptom when out of adjustment The unit does not record, search or pause CD-R discs. Measurement instrument connections Oscilloscope to CN104, Pin-5 (WBL) (HEAD BOARD assy) [ This connection must be via high-pass filter (180pF+3. 9k). ] GND probe can be connected to CN104, Pin-4 (AGND). [ Settings ]: 5 mV/div. , 20 mS/div. , DC mode Disc STD-R03 Player state Test mode, play Adjustment location VR115 (WFE. (4) Shine the light discharged from the objective lens in the pickup on the light power meter sensor and adjust VR104 (REC. PW) so that the recording laser diode output is an average of 4. 7mW 0. 1mW (Wavelength 790nm, Average mode). P : Playback Power R : Recording Power 4. 3. 20 HF Amp. Gain Adjustment Objective To correct the discrepancy in the HF level with the pickup. Symptom when out of adjustment The unit does not record, track search is impossible. Measurement instrument connections Oscilloscope to CN104, Pin 8 (HF) (HEAD BOARD assy) GND probe can be connected to CN104, Pin-4 (AGND). [ Settings ]: 50 mV/div. , 500 nS/div. , DC mode Disc TCD-785 Player state Test mode, play Adjustment location VR119 (HF. GAIN) (HEAD BOARD assy) [ Procedures ] (1) Move the pickup to midway across the disc (R = 35mm) with the MANUAL / TRACK SEARCH FWD or REV keys. (2) Press the FINALIZE key, the PLAY key and the PAUSE key in the order to close the respective servos and put the player into play mode. (3) Line up bright line (ground) at the center of the oscilloscope screen and put the oscilloscope into DC mode. GAIN) so that the amplitude of waveform at CN104 , Pin-8 (HF) is 2. 0V 0. 1V. NOTE : Adjust after checking that the COPY BIT LED is OFF. 2. 0V 0. 1V Fig. [. . . ] H0 H1 Location of fault H0: Communication is not properly made between mechanism and mode controllers. (See page 42 to check voltage. ) IC360 Fault on loading section is detected. Faulty power supply Checkpoint IC356, IC357, IC207, IC358, IC352, IC353 IC205 H2 H5 L* Recording preparations cannot be performed and tray does not open. ("CHECK" is displayed. ) Unit stops operating while tray is open/close. [. . . ]