Marantz 5010 - Page 14

7. Recording Current Adjustment (Temporal)
SET UP
1.
Power voltage:- 50 or 60Hz AC voltage rated
for the unit to be used in a market country.
2. Input signal:- 1kHz, —60dB signal.
3. TAPE selector switch positions:- NORMAL,
4. Load:- Measuring instrument input im-
pedance.
PROCEDURES
1. Stop the recording bias current oscillation by
disconnecting the bias circuit +B resistor
(R305).
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Set up the tape deck to the normal record-
ing state. Connect the VTVM to J105, J104
{L ch) and J205, J204 (R ch). Adjust the
semifixed resistors R140 and R240 until the
VTVM reads 0.35mV, respectively.
Proceed both for the right and left channels
in the same manner.
After adjustment, release the recording bias
current.
VTVM
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