SONY HCDW550
Manual de Servicio

2.

Turn the adjustment screw for the maximum output levels. If these levels do not match, turn the adjustment screw until both of output levels match together within 1 dB.

Tape Speed Adjustment

DECK A

DECK B

Note: Start the Tape Speed adjustment as below after setting to the test mode. Set to test mode. (Press key switch same time CD STOP DECK A STOP and DECK B STOP button.) Test mode off. (Power off.) Procedure: � Perform high speed adjustment before normal speed adjustment. Mode: Playback

3.

Playback Mode Speed Deck A *High B A Normal B Adjustment RV652 RV652 RV651 RV651 Frequency counter 5,910 to 6,090 Hz 2,910 to 3,090 Hz

* Continue to press HIGH SPEED DUBBING switch (S259) in playback mode : High speed playback. Frequency difference between the beginning and the end of the tape should be within ± 3%. Frequency difference between deck A and deck B the beginning of the tape should be within 1.5 %. Adjustment Location: AUDIO board (See page 8) 4. 5. Change the playback mode and repeat the steps 1 to 3. After the adjustment, lock the adjustment screw with suitable locking compound. Sample Value of Wow and flutter W.RMS (JIS) within 0.3% (test tape: WS-48B) Playback level Adjustment DECK A Procedure: � FWD playback Mode �
test tape P-4-L3000 dB) (315 Hz,

Adjustment Location: � Record/playback head (Deck A and B) �

DECK B

VTVM + � Output level measurement point (See page 6)

set

Deck A is RV311 (L-CH) and RV411 (R-CH), Deck B is RV301 (L-CH) and RV401 (R-CH) so that adjustment within adjustment level as follows. Adjustment Level: LINE OUT level : �8.2 to �7.2 dB (301.5 to 338.3 mV) Level Difference between Channels : within 0.5 dB Confirm the OUTPUT level does not change in playback mode while changing the mode from playback to stop several times. Adjustment Location: AUDIO board (See page 8)

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