11
WM-FX888
SECTION 4
MECHANICAL ADJUSTMENTS
SECTION 5
ELECTRICAL ADJUSTMENTS
Tape Speed Adjustment
Setting:
Function: TAPE
Procedure:
1. Playback WS-48A (tape center) in the FWD state.
2. Adjsut RV601 so that the frequency counter reading becomes
3,000 Hz.
Specification Values: 2,970 to 3,030 Hz
3. Playback WS-48A (tape center) in the REV state.
Check that the frequency counter reading is within 2%
(approx.60 Hz) of the reading of step 1.
Adjustment Location: MAIN BOARD (See page 12)
PRECAUTION
1. Specified voltage
: 1.3 V (DC)
2. Setting
SOUND RV/MB/GRV : OFF
AVLS
: OFF
;
NR
: OFF
BL SKIP
: OFF
TAPE DECK SECTION
0 dB=0.775 V
Test tape
Type
Signal
Used for
WS-48A
3 kHz, 0 dB
Tape Speed Adjustment
+
–
set
Test tape
WS-48A
(3 kHz, 0 dB)
frequency counter
16
Ω
i
jack (J701)
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab:
playback head
pinch roller
rubber belts
capstan
2. Demagnetize the playback head with a head demagnetizer.
(Do not bring the head demagnetizer close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the rated power
supply voltage (1.3 V) unless otherwise noted.
Torque Measurement
Mode
Torque Meter
Meter Reading
(1.47 – 2.94 mN•m)
FWD
15 – 25 g•cm
CQ-102C
(0.22 – 0.36 oz•inch)
(0.029 – 0.196 mN•m)
FWD
0.3 – 2.0 g•cm
Back Tension
(0.004 – 0.01 oz•inch)
(1.47 – 2.94 mN•m)
REV
15 – 25 g•cm
CQ-102RC
(0.22 – 0.36 oz•inch)
(0.029 – 0.196 mN•m)
REV
0.3 – 2.0 g•cm
Back Tension
(0.004 – 0.01 oz•inch)
(more than 3.43 mN•m)
FF, REW
CQ-201B
more than 35 g•cm
(more than 0.5 oz•inch)
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
