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HEMATIC
DIAGRAM
Sc
G
@ ADJUSTMENT INSTRUCTIONS
Short the shortland ®.
Short the shortland ©.
Short the shortland ©.
(Gauge No. D-6 on page 16)
(Gauge No. F-12 on page 18)
(Gauge No. E-13 on page 18)
READ CAREFULLY
BEFORE ATTEMPTING
ADJUSTMENTS
1. Set volume control to maximum.
3. Release the hold state. (Refer to page 2)
'
2. Set Dolby NR Switch to OFF.
4. Set power source voltage to 1.5V DC.
N
Q304
2SBI218STX
Re
R307 560K
¢ CONTROL
POSITIONS AND EQUIPMENT
USED
NI
| 1. Frequency counter
@ TAPE SECTION
MEASUREMENT
ADJUSTMENT
|
Playback the central part of the
Connect the
tape and adjust VR301 so that the
frequency
tape speed is as follows.
counter to
Forward:
2990+ 10Hz
Headphones jack
Reverse: 2940~3050 Hz
(16Q)
Make sure that the frequency range
(Refer to Fig. 1)
in within +60Hz for between
"Forward" and "Reverse" mode.
2SDI8ISSTX
RESET
2SB8I5B7TX
POWER
SUPPLY
e:
0.8V
cad,
QZZCWAT
(3kHz, —10dB)
VR301
(Refer to Fig. 2)
Tape speed
Bear
adjustment
2SBI218¢
SWITCHING
(STANDBY |
Q40!
ee
cats
2SDI32E
oa aieaek
>
33K
ae
Note: The playback head is supplied on the head arm assembly. (See the Mechanism parts location on page 24.)
SWITCHING
J o-8v
The assembly requires no adjustment.
(REMOTE )
R356
2 10K
R360
VR3O!
2K(B)
4.7K
AT
Short the shortland ©. (Gauge No. F-11 on page 17)
To headphones jack
—
For measuring
—
instrument R=16Q
Tape speed adjustment
| | 9303 a6
Short the shortland ©. (Back side)
(Gauge No. C-3 on page 19)
Short the shortland @. (Back side)
(Gauge No. E-4 on page 19)
Short the shortland ©. (Front side)
(Gauge No. F-5 on page 19)
Short the shortland ©. (Back side)
(Gauge No. F-5 on page 19)
Note:
This diagram shows a front view of
the IC3 mounting surface.
| RQ-S75
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