Sanyo VM-EX220P - Overall Level Check; Overall S;N Check

3. Overall Level Check
[Connection]
4. Overall S / N Check
[Connection]
[Adjustment / Check]
w
[Adjustment / Check]
Measuring Point
Measuring Equipment
Condition
I
Audio terminal
Oscilloscope Record and
MP type tape playback (SP)
Input Signal / Alignment Tape
EXT MIC input (CN294): 1 kHz,
–66.0 dBs
ADJ. Location
ADJ. I
Check Value
Meaauring Point
Measuring Equipment Condition
1 I
Audio terminal
~
Short-circuited at the EXT MIC input
(CN294): No sicmal
ADJ. Location I ADJ. / Check Value
1/1
0.62-1.55 Vp-f)
I
1/1
Less than 6.9 mVp-p
I
Preparation:
● Stand-by switch: “STANDBY
● POWER switch: “CAMERA and “PLAYER”
Adjusting / Checking method:
1. Record.
2. Play back the recorded portion.
3. Confirm that the audio output level is 0.62-1.55 Vp-p.
Preparation:
● Stand-by switch: “STANDBY
● POWER switch: “CAMERA and “PLAYER”
Adjusting / Checking method:
1. Record then play back the recorded portion.
2. Confirm that the residual audio output level is less than
6.9 mVp-p (JIS A audio corrections).
● Since the audio input level is extreme low, be careful of
noise such as inductive hum, etc.
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