Sony XR-C2200 Service Manual page 11

3. Check the phase in the FWD PB mode.
test tape
P-4-A063
(6.3 kHz, –10 dB)
L-CH
set
R-CH
AUDIO OUT jack (CN400)
Screen pattern
45 °
in phase
good
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.
oscilloscope
10 k Ω
V H
+ +
– –
10 k Ω
90 ° 135 ° 180 °
wrong

FWD

 adjustment
 screws

REV
Tape Speed Adjustment
Setting:
test tape
WS-48A
(3 kHz, 0 dB)
set
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
Speed checker
–2 to +3%
Adjustment Location: See page 13.
speed checker
or
frequency counter
10 kΩ
– +
AUDIO OUT jack (CN400)
Frequency counter
2,940 to 3,090 Hz
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