Sony XR-C2600 Service Manual page 11

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3 7 63 1515 0
3. Check the phase in the FWD PB mode.
test tape
P-4-A063
(6.3 kHz, –10 dB)
L-CH
set
R-CH
in phase
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
TE
L 13942296513
See the adjustment location from on page 13 for the
adjustment.
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oscilloscope
10 k Ω
V
H
+ +
– –
10 k Ω
AUDIO OUT jack (CN400)
Screen pattern
45 °
90 ° 135 ° 180 °
good wrong

FWD




REV
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8
Tape Speed Adjustment
Setting:
test tape
WS-48A
(3 kHz, 0 dB)
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.
adjustment
Q Q
screws 3 6 7 1 3
.
2 9 9 4 2 8
speed checker
frequency counter
10 kΩ
set
AUDIO OUT jack (CN400)
Frequency counter
2,940 to 3,090 Hz
1 5 0 5 8 2 9 9 4
m
co
9 9
or
– +
2 8 9 9
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