Technics RS-B465 Service Manual page 8

RS-B465
11
Procedure
1—3-10
11
Removal of the eject lever and
eject button
Eject Lever :
Eject Lever
1. Push the claw in the direction of the arrow ®. 3. Puil out the eject button.
2. Remove the eject lever in the direction of the arrow
©.
Removal of the power supply P.C.B.
Procedure
1-12
1. Remove the 1 flat cable (CN2).
2. Remove the 4 screws (@~®).
li' MEASUREMENT AND ADJUSTMENT METHODES
Measurement Condition
@ Rec. level control; Maximum @ Balance control; Center
@ Timer stand-by switch; Off @ Make sure heads are clean
@ Noise reduction select switch; Off
@ Make sure capstan and pressure roller are clean
@ MPX filter switch; Off @ Judgeable room temperature 20+5°C(68219°F)
Measuring instrument
@ EVM(Electronic Voltmeter) @ ATT(Attenuator)
@ Oscilloscope @ DC volimeter
@ Digital frequency counter @ Resistor (6000)
@ 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); CrQz reference blank tape; QZZCRX
QZZCFM Metal reference blank tape; QZZCRZ