Technics RS-X302 - Page 10

RS-X302
MIMEASUREMENTS AND ADJUSTMENTS
Measurement Condition
¢ Rec. level control; Maximum * Dolby NR selector switch; Off
e Reverse-mode selector switch; —_— ¢ Make sure heads are clean
* Tape-to-tape-recording tape-speed selector; X1 ¢ 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 * 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) (Reh)
] r fi =a OVERALL FREQUENCY RESPONSE ADy.
DECK 2: VR303(Lch) {VR302(Rch)}
PLAYBACK GAIN ADu.
DECK I: VR3(Lch) {VR4(Rch)}
TAPE SP ADJ.
E
SPEED
ADJ
DECK
2:
VR5(Lch)
{VR6(Rch)
}
DECK 2 :vR902(X1),
VROOI( X2)
DECK I: VR903(X1}
vee [OI]
vR303 [© VR4 VR5 VR3
vR302
@
VR903 [@]vR90! ale
vR902 VR301
*
DECK 2: VR30!
vre [@] OVERALL GAIN AD.
vR7 [| DECK 2: VR7(Lch) {VR8(Rch)}
ERASE CURRENT
MODE TEST POINT ADJ. TEST POINT
(Soldered Surface) (DECK 2)