Marantz SD1000 - Electrical Adjustments (Continued); Playback Output Adjustment Procedure; VU Meter Calibration

6.4 PLAYBACK OUTPUT ADJUSTMENT
SET UP
1. Power voltage:- 50 or 60 Hz AC voltage rated for
_ the unit to be used in a market country.
. TAPE SELECTOR switch position:- NORMAL.
. Load:- Measuring instrument input impedance.
. Output terminal:- LINE OUTPUT.
. Test tape used:- MTT-150.
. Tape Speed:- 1-7/8 IPS.
PROCEDURES
Play the test tape MTT-150 back. Adjust R115 and
R215 (50 kQ each) for 580 mV playback output level.
NOTE: Proceed both for the right and left channels
in the same manner.
Mode: Playback
MTT-150
LINE OUTPUT
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CAUTION
This adjustment should be performed after the one for
the playback equalizer. If the playback equalizer is
adjusted after the playback output adjustment, the
playback output should be readjusted.
6.5 VU METER ADJUSTMENT
SET UP
1. Power voltage:- 50 or 60 Hz AC voltage rated for
the unit to be used in a market country.
. TAPE SELECTOR switch position:- NORMAL.
. Load:- Measuring instrument input impedance.
. Output terminal:- LINE OUTPUT.
. Input terminal:- MIC.
PROCEDURES
1. Connect a 1 kHz, —60 dBV input signal to the MIC
terminal. Set up the tape deck for the recording
mode of operation.
. Adjust the RECORD LEVEL control for 580 mV
output level at monitor out of the LINE OUTPUT
terminal.
. Adjust R152 and R252 (2kQ each) until the VU
meter pointer deflects to the O VU on the VU meter.
Mode: Record
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TONE: 1 kHz,
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