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 mentOREC memory, when the tape is rewound after recording, the OREC memory
mode� which rewinds only the recorded portion and plamode� wyback ishich 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.tomatically switch to VIDEO.
(After recording, press the � 0 button without stopping will(After recording, press the � 0 button without stopping will
return to the position where recording was started.)return to the position where recording was started.)
1. Press FUNCTION button to select VIDEO. (This ste1. Press FUNCTION bp is notutton to select VIDEO. (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 Br REC b, press the utton, and then2. Insert a tape into deck Br REC b, press the utton, and then
press the ( button to start recording.press the ( button to start recording.
3. Mode: Record3. Mode: Record
VIDEO (AUDIO) INVIDEO (AUDIO) IN
1) 315 Hz315Hz 50 mV (�23.8 dB)
} 50 mV (�23.8 dB)
2) 10 kHz
AF OSC
AF OSC
blank tape
blank tape
CS-123
600 WCS-123600 W
attenuatorattenuator
set
set
4. Mode: Playback4. Mode: Playback
recordedlevel meterrecordedlevel meter
positionposition
setset
main boardmain board
CN301CN301
Pin 1 (L-CH)Pin 1 (L-CH)
Pin 3 (R-CH)Pin 3 (R-CH)
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 levels do not adjustment leV341 (L-CH)vel, 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 level: The playback output of 10 kHz level differenceAdjustment level:
against 315 Hz reference should be ? 1.0 dBCN403 pla.yback 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)
RV301
[AUDIO BOARD] (Conductor Side)
Record Level (Lch)
RV341(Lch),RV441(Rch)RV311(Lch),RV411(Rch)
Record BiasPlayback Level (Deck A)
1 3
CN301
IC301
RV301 RV401
RV411
RV311RV441 RV341
RV351
Record Level (Rch)
RV301(Lch),RV401(Rch)
Playback Level (Deck B)
� 16 � |
ACEC
