Adjustment - JVC UX-H300 Service Manual

4.1 Measurement Instruments Required for Adjustment
(1) Low frequency oscillator
This oscillator should have a capacity to output 0dBs to 600Ω at an oscillation frequency of 50Hz-20kHz.
(2) Attenuator impedance : 600Ω
(3) Electronic voltmeter
(4) Distortion meter
(5) Frequency counter
(6) Wow & flutter meter
(7) Test tape
VT703L : Head azimuth
VT712 : Tape speed and running unevenness (3kHz)
VT724 : Reference level (1kHz)
(8) Blank tape
TYPE l : AC-225
TYPE ll : AC-514
(9) Torque gauge : For play and back tension
FWD(TW2111A), REV(TW2121a) and FF/REW(TW2231A)
(10) Test disc: CTS-1000
4.2 Measurement conditons
Power supply voltage
Reference output
Reference frequency and input level :1kHz, AUX : -8dBs
Measurement output terminal
Load resistance
4.3 Radio Input signal
AM frequency
AM modulation
FM frequency
FM frequency deviation
1-18 (No.MB297)
SECTION 4

ADJUSTMENT

:AC230V ~ AC240V, 50Hz / 60Hz
:Speaker : 0 dB (2V)/4Ω
:Headphone : -10 dB(0.245V)/32Ω
:at Speaker
:4Ω
:1kHz
:30%
:1k
:22.5kHz