jedyne do czego mogę mieć zastrzeżenie to jakość zdjęć zawartych w przesłanej instrukcji serwisowej ponieważ są fatalnej jakości, praktycznie nieczytelne. tak poza tym jestem zadowolony to jest to czego szukałem.
Instrukcja jest OK. Schematy czytelne, opisane niektóre procedury.
Tekstowy podgląd strony 16 (kliknij aby zobaczyć)
RXD-501/551/571/A5/701/751/771/A8
ADJUSTMENT
5. Cassette Deck adjustment
No ITEM INPUT SETTING OUTPUT SETTING DECK SETTING ALIGNMENT POINT ALIGN FOR FIG.
Unless otherwise specified, set the respective switches as follows: TAPE : NORMAL DOLBY : OFF PLAY OUT : Lch (X28,CN6 1pin), Rch (X28,CN6 4pin) ø. Cassette mechanism unit (Adjustment of the REC / PLAY head)
0dBs=0.775V
<1>
Demagnetization and cleaning
�
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Power : OFF Demagnetization,cleaning, PLAY
Demagnetize the REC / PLAY head with the head erasRecording er.Clean the REC / head, erase PLAY head, erase head,capstan head,capstan and pinch roller pinch roller using a cotton swab slightly damped with alcohol. Adjust the output to maximum and adjust the azimuth adjustment screw for the Lissajours waveform pattern of the oscilloRVS scope to become close to a 45° straight line.
<2>
Azimuth of the REC/PLAY head
TCC�153 MTT�114 10kHz, � 10dB
(B)
PLAY FWD
¿. PC BOARD ADJUSTMENT <1> TAPE SPEED(NORMAL) TCC�110 MTT�111 SCC�1727 3kHz (B) PLAY
{
A DECK VR B DECK 5 VR 6
Adjust the tape speed so that 3kHz is obtained at the center of the tape.
¡. PC BOARD ADJUSTMENT A DECK VR 7 (L) VR 8 (R) B DECK VR 1 (L) VR 2 (R)
<1>
PLAYBACK LEVEL
MTT� 150 400Hz
(B)
PLAY
Adjust the playback output to -2.5dBs
<2>
(A) Adjust the AG for the output of BIAS CURRENT the DECK to become 400Hz (-20dB)/12.5kHz (-20dB)
X28, CN6
1 L IN GND
REC (B)
¤
PLAY
VR 3 (L) VR 4 (R)
Record 400Hz and 12.5kHz alternately, and adjust the bias current adjustment potentiometer for the playback levels to become the same.
