Technics RS-X102 - Page 10

RS-X102 |
MIMEASUREMENTS
AND
ADJUSTMENTS
Measurement Condition
Rec. level control; Maximum ¢ Dolby NR selector switch; Off
¢ Reverse-mode selector switch; —_~ © Make sure heads are clean
¢ Tape-to-tape-recording tape-speed selector; X1 e Make sure capstan and pressure roller are clean
¢ Judgeable room temperature 20+5°C (68+9° F)
Measuring instrument
¢ EVM (Electronic Voltmeter) ¢ ATT (Attenuator)
* Oscilloscope e¢ DC voltmeter
¢ Digital frequency counter ¢ Resistor (600Q)
¢ AF oscillator
Test tape
¢
Head
azimuth
adjustment
(8kHz,
—20dB);
QZZCFM
¢
Playback
gain
adjustment
(315Hz,
0dB);
QZZCFM
*
Tape
speed
adjustment
(3kHz,
—
10dB);
QZZCWAT
©
Overall
frequency
response,
Overall
gain
adjustment
¢ Playback frequency response (315Hz, 12.5kHz, 10kHz, Normal reference blank tape ; QZZCRA
8kHz,
4kHz,
1kHz,
250Hz,
125Hz,
63Hz,
—20dB);
CrO,
reference
blank
tape;
QZZCRX
QZZCFM
Metal
reference
blank
tape;
QZZCRZ
e Adjustment Points
MAIN PC.B. (Leh) (Roh)
mA OVERALL FREQUENCY RESPONSE ADJ.
DECK 2: VR303(Lch} {VR302 (Recht
PLAYBACK GAIN ADu.
DECK I: VR3(Lch {VR4(Rch)}
TAPE SPEED ADJ.
DECK 2: VR5(Lch) {VRE(Rch)}
DECK 2 :vR902 (XI),
VR9OK X2)
DECK I: VRSO3(X1}
vré [][9](9][9]
VR302
vR903 [9] [@] [@]VR90!
vR902 VR301 4 vrs |)
He
ERASE
CURRENT
ADv.
1c901
|
DECK 2: vR30I
ERASE CURRENT
MODE TEST POINT ADJ. TEST POINT
(Soldered Surface) (DECK 2)
OVERALL GAIN ADu.
VR7 [@ DECK 2: VR7(Lch) {VR8(Rch)}