SONY HTC-NX30
Instrukcja Serwisowa

2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1dB of peak.

Tape Speed Adjustment

DECK B

� Execute only if connected to the STR-NX300 Mode: Playback
test tape WS-48B (3 kHz, 0 dB) AUDIO OUT jack frequency counter set STRNX300 + �

L-CH peak Output level

within 1dB within 1dB

Screw position

R-CH peak L-CH peak R-CH peak

Screw position

1. Insert the WS-48B into the deck B. 2. Press the G (DECK B) button. 3. Press the [HI-DUB] button in playback mode. Then at HIGH speed mode. 4. Adjust RV1001 on the LEAF SW board do that frequency counter reads 6,000 ± 180 Hz. 5. Press the [HI-DUB] button. Then back to NORMAL speed mode. 6. Adjust RV1002 on the LEAF SW board so that frequency counter reads 3,000 ± 90 Hz. Adjustment Location: LEAF SW board Sample value of Wow and Flutter: 0.3% or less W.RMS (JIS) (WS-48B)

3. Mode: Playback
test tape P-4-A100 (10 kHz, �10 dB) L-CH set PFJ-1 or STRNX300 L-CH V H AUDIO OUT (L) jack oscilloscope

R-CH

R-CH AUDIO OUT (R) jack

waveform of oscilloscope

Playback level Adjustment DECK A Procedure: Mode: Playback
test tape P-4-L300 (315 Hz, 0 dB) set PFJ-1 or STRNX300

DECK B

in phase 45° good

90° 135° 180° wrong

AUDIO OUT jack level meter + �

4. Repeat step 1 to 3 in playback (REV) mode. 5. After the adjustments, apply suitable locking compound to the pats adjusted. Adjustment Location: Playback Head (Deck A). Record/Playback/Earth Head (Deck B).

Deck A is RV311 (L-CH) and RV411 (R-CH), Deck B is RV301 (L-CH) and RV401 (R-CH) so that adjustment within specified value as follows. Specified Value: AUDIO OUT jack PB level: 301.5 to 338.3 mV (�8.2 to �7.2 dB) level difference between the channels: within ± 0.5 dB Adjustment Location: AUDIO board

Open the cassette holder and unhock six claws of the sub panel (TC2) with tweezers or something, then remove the sub panel (TC2). forward reverse

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