Panasonic RS-736US Service Manual page 11

AMPLIFIER ADJUSTMENTS
After adjusting the head, adjust the amplifier section according to the following procedure, and then adjust the
overall frequency response with the tape speed set at 3-3/4 ips and then again at 15 ips.
Especially when the head, the recording equalizer/playback equalizer adjustment volume and coil, etc. are replaced,
make the general adjustments listed below.
ADJUSTMENT ORDER
Playback Line Out Playback Frequency Oscillation Frequency
Adjustment Response Adjustment Measurement
Bias Current Erase Current Recording Level
Adjustment Measurement Adjustment
Overall Frequency Overall Frequency Recording Level
Response Adjustment(1) Response Adjustment(2) Adjustment
Recording Monitor
Adjustment
VU Meter
Adjustment
PLAYBACK LINE OUTPUT
Playback Playback
Head Amplifier
Fig. 19
Instruments required: VTVM, standard tape
Playback the Ampex standard tape with a max. frequency
of 700 Hz and adjust the semi-fixed volume resistors
TAPE/SOURCE selector switch set to TAPE.
ous
VR23 and VR24 until the LINE-1 output becomes 1 V.
(Set the speed selector knob to 7-1/2 ips.) Keep the
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