Record Bias Adjustment (Deck B) Record Level Adjustment (Deck B) Procedure: Procedure: INTRODUCTION When set to the test mode performed in Tape Speed Adjust- ment , when the tape is rewound after recording, the “REC memory mode” which rewinds only the recorded portion and playback is set. This “REC memory mode” is convenient for performing this ad- justment. During recording, the input signal FUNCTION will auto- matically switch to VIDEO 1.
(After recording, press the 0 button without stopping will re- turn to the position where recording was started.) INTRODUCTION When set to the test mode performed in Tape Speed Adjust- ment , when the tape is rewound after recording, the “REC memory mode” which rewinds only the recorded portion and playback is set. This “REC memory mode” is convenient for performing this adjustment. During recording, the input signal FUNCTION will au- tomatically switch to VIDEO 1. (After recording, press the 0 button without stopping will re- turn to the position where recording was started.) 1. Press FUNCTION button to select VIDEO 1.
(This step is not necessary if the above test mode has already been set.) press the 3. Mode: Record 1. Press FUNCTION button to select VIDEO 1. (This step is not necessary if the above test mode has already been set.) REC button, and then 3. Mode: Record VIDEO 1 (AUDIO) IN 1) 315 Hz 2) 10 kHz VIDEO 1 (AUDIO) IN 315Hz 50 mV (–23.8 dB) AF OSC } 50 mV (–23.8 dB) AF OSC attenuator 600 Ω blank tape CS-123 attenuator 600 Ω blank tape CS-123 set set 4. Mode: Playback 4. Mode: Playback recorded position level meter recorded position level meter set set MD OUT MD OUT 5. Confirm playback the signal recorded in step 2 become adjust- ment level as follows.
If these levels do not adjustment level, adjust the RV341 (L-CH) and RV441 (R-CH) on the AUDIO board to repeat steps 3 and 4. 5. Confirm playback the signal recorded in step 2 become adjust- ment level as follows. If these levels do not adjustment level, adjust the RV301 (L-CH) and RV351 (R-CH) on the MAIN board to repeat steps 3 and 4. Adjustment level: The playback output of 10 kHz level difference against 315 Hz reference should be ± 1.0 dB. Adjustment level: CN403 playback level: 47.2 to 53.0 mV (–24.3 to –23.3 dB) Adjustment Location: AUDIO board Adjustment Location: MAIN board Adjustment Location:
[AUDIO BOARD] (Conductor Side) [MAIN BOARD] (Conductor Side) RV341(Lch),RV441(Rch) Record Bias RV311(Lch),RV411(Rch) Playback Level (Deck A) RV301 RV401 Record Level (Lch) RV301 RV441 RV341 RV311 RV411 1 3 RV301(Lch),RV401(Rch) Playback Level (Deck B) IC30156 43 42 29 28 15 14 1 RV351 Record Level (Rch) ape into deck B, press the r REC button, and then 2. Insert a tape into deck B, press the r REC · button to start recording. press the · button to start recording. r REC ·