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 rOREC memoryecording, the ment, when the tape is rewound after recorOREC memording,y the
mode� which rewinds only the recorded portion and playbacmode� which rek iswinds 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
matically switch to VIDEO.automatically switch to VIDEO.
(After recording, press the m button without stopping will re-(After recording, press the m 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. (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 B, press the TAPE REC P2.AInsert a taUSE/STARTpe into deck B, press the TAPE REC PAUSE/START
button, and then press the H button to start recording.button, and then press the H 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 OSCblank tape
blank tape
600 &CS-123
600 &CS-123
attenuator
attenuator
set
set
4. Mode: Playback4. Mode: Playback
recordedlevel meterrecordedlevel meter
positionposition
setset
main boardmain board
CN302CN302
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 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 vTel:he playback output of 10 kHz level difAdjustment leferencevel:
against 315 Hz reference should be 0 ? 0.5 dB.CN302 playback level: 47.2 to 53.0 mV (�24.3 to �23.3 dB)
Adjustment Location: AUDIO boardAdjustment Location: MAIN board
Adjustment Location:[MAIN BOARD]
[AUDIO BOARD]
RV301
RV311(Lch),RV411(Rch)RV341(Lch),RV441(Rch)31
CN302
Record BiasPlayback Level (Deck A)
Record Level (L ch)
RV351IC301
Record Level (R ch)
RV301 RV401
RV411
RV441 RV341RV311
RV301(Lch),RV401(Rch)
Playback Level (Deck B)
35 |
ACEC
SONY
