Read Sony BM-23MK2 Service Manual online
11
BM-23MK2
Adjustment Parts Location Diagram :
Tape Speed 2.4cm/s Adjustment
Switch position
TAPE SPEED Switch : 2.4 cm
TAPE SPEED Switch : 2.4 cm
Procedure:
1. Play back WS-48A (tape center portion) in FWD mode.
Adjust the RV602 so that the frequency counter reads 1,490
±
15 Hz.
2. Play back WS-48A (tape center portion) in REV mode.
Confirm that the reading of frequency counter is within 2.5 %
from the reading in step 1.
from the reading in step 1.
AUDIO BOARD (SIDE B)
RV601
(TAPE SPEED 4.8cm ADJ.)
RV602
(TAPE SPEED 2.4cm ADJ.)
J102
set
18
Ω
test
WS-48A
(3 kHz, 0 dB)
WS-48A
(3 kHz, 0 dB)
frequency
counter
counter
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