Pioneer CT-S670D, Руководство по обслуживанию

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CT-S670D
31
Fig. 6–2 Frequency Response Zone
250
3dB
10k
12.5k
3dB
315 Hz = 0 dB 315 Hz = 0 dB
4dB
PLAY BACK
250
3dB
10k
12.5k
3dB 5dB
RECORDING
6.2.1 Playback Section
Play the 10 kHz/–20 dB section
of STD–331E test tape
Head azimuth
adjustment screw
(Fig. 6–3)
No. Mode Input Signal / Test Tape
Adjustment Measurement Adjustment
Remarks
Location Location Value
PLAY 1
LINE OUT
(L/R ch)
Maximum playback
signal level
(1) Head Azimuth Adjustment
Turn VR101 and VR102 to mechanical center position.
Lock the screw with silicon
bond after completing
adjustment.
(2) Playback Level Adjustment
This adjustment determines the DOLBY NR level, and must be performed with great care.
6.2.2 Recording Section
(1) Bias Oscillation Frequency Adjustment
Fig. 6–3 Head Azimuth Adjustment
Head Azimuth Adjustment Screw
Play the 315 Hz/ 0 dB section of
STD–331E test tape
No. Mode Input Signal / Test Tape
Adjustment Measurement Adjustment
Remarks
Location Location Value
PLAY 1
TP3 (L ch)
TP4 (R ch)
(MAIN Unit)
–6.7 dBV
Load the STD–611 test tape with
no input signal.
L401
No. Mode Input Signal / Test Tape
Adjustment Measurement Adjustment
Remarks
Location Location Value
REC 1
TP11
VR101
L ch
R ch
VR102
160 kHz ± 1 kHz