Ctl Self Recording Level Confirmation - Panasonic AJ-D400P Service Manual

1-23. CTL Self Recording Level Confirmation

SPEC. Refer to below table
TEST POINT TP107 (SERVO Board)
MODE REC and PLAY
TAPE Blank tape
M.EQ
Oscilloscope
NOTE: This confirmation should be done after
each screws of A/C Head are fixed.
1. Record the blank tape.
2. Playback the recorded portion and confirm the
CTL level is within specification as shown as
below table on PLAY and REV X1 mode.
CTL Output Level C1, C2
PLAY
C1, C2 ≥ 220mV
→ Re-confirm the A/C Head
1. PLAY NG
height adjustment.
→ Re-confirm
2. REV NG
adjustment.
REV × 1
C1, C2 ≥ 170mV
the T4 post
C1
C2