11
test tape
P-4-A063
(6.3 kHz, –10 dB)
L-CH
R-CH
AUDIO OUT jack (CN400)
oscilloscope
V
H
+ +
–
–
Screen pattern
in phase
good
wrong
45
°
90
°
135
°
180
°
10 k
Ω
10 k
Ω
set
3. Check the phase in the FWD PB mode.
4. Repeat the above adjustment for the REV PB mode.
5. Check that output level difference between FWD PB mode
and REV PB mode is within 4 dB.
Adjustment Location: PB head
See the adjustment location from on page 13 for the
adjustment.
FWD
REV
adjustment
screws
Tape Speed Adjustment
Setting:
Procedure:
1. Put the set into the FWD PB mode.
2. Adjust adjustment resistor for inside capstan motor so that the
reading on the speed checker or frequency counter becomes in
specification.
Specification: Constant speed
Adjustment Location: See page 13.
Speed checker
Frequency counter
–2 to +3%
2,940 to 3,090 Hz
+
–
speed checker
or
frequency counter
test tape
WS-48A
(3 kHz, 0 dB)
AUDIO OUT jack (CN400)
set
10 k
Ω
