Record Bias Adjustment (Deck B)Record Level Adjustment (Deck B)
Procedure:Procedure:
INTRODUCTIONINTRODUCTION
When set to the test mode perfTape Speed Adjust-ormed in When set to the test mode perfTape Speed Adjust-ormed in
ment, when the tape is rewound after recording, the OREC memoryment, when the tape is rewound after recording, the OREC memory
mode� which rewinds only the recorded portion and plamode� whicyback ish rewinds only the recorded portion and playback is
set.set.
This OREC memory mode� is convenient for performing this ad-This OREC memory mode� is convenient for performing this
justment. During recording, the input signal FUNCTION will auto-adjustment. During recording, the input signal FUNCTION will au-
matically switch to VIDEO 1.tomatically switch to VIDEO 1.
(After recording, press the 0 button without stopping will re-(After recording, press the 0 button without stopping will re-
turn to the position where recording was started.)turn to the position where recording was started.)
1. Press FUNCTION button to select VIDEO 1. (This step is not1. Press FUNCTION button to select VIDEO 1. (This step is not
necessary if the above test mode has already been set.)necessary if the above test mode has already been set.)
2. Insert a tape into deck B, press the r REC button, and then2. Insert a tape into deck B, press the r REC button, and then
press the á button to start recording.press the á button to start recording.
3. Mode: Record3. Mode: Record
VIDEO 1 (AUDIO) INVIDEO 1 (AUDIO) IN
1) 315 Hz315Hz 50 mV (�23.8 dB)
} 50 mV (�23.8 dB)
2) 10 kHz
AF OSC
AF OSCblank tape
blank tape
600 WCS-123
600 WCS-123
attenuator
attenuator
set
set
4. Mode: Playback4. Mode: Playback
recordedlevel meterrecordedlevel meter
positionposition
setset
MD OUTMD OUT
5. Confirm playback the signal recorded in step 2 become adjust-5. Confirm playback the signal recorded in step 2 become adjust-
ment level as follows.ment level as follows.
If these levels do not adjustment level, adjust the RIf these leV341 (L-CH)vels do not adjustment level, adjust the RV301 (L-CH)
and RV441 (R-CH) on the AUDIO board to repeat steps 3 and 4.and RV351 (R-CH) on the MAIN board to repeat steps 3 and 4.
Adjustment le vThe playbacel:k output of 10 kHz level difAdjustment leferencevel:
against 315 Hz reference should be ? 1.0 dBCN403 playbac.k level: 47.2 to 53.0 mV (�24.3 to �23.3 dB)
Adjustment Location: AUDIO boardAdjustment Location: MAIN board
Adjustment Location:[MAIN BOARD] (Conductor Side)
[AUDIO BOARD] (Conductor Side)
RV341(Lch),RV441(Rch)RV311(Lch),RV411(Rch)
Record BiasPlayback Level (Deck A)
Record Level (Lch)
RV301 RV401RV301
RV411
RV441 RV341RV311
1
3
1415
128
RV301(Lch),RV401(Rch)IC301
5629
Playback Level (Deck B)4342
RV351
Record Level (Rch)
� 18 � |
ACEC
SONY
