Sony MHC-NX3AV Operating Instructions (primary manual) 서비스 매뉴얼 - 페이지 10

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Sony MHC-NX3AV Operating Instructions (primary manual) 서비스 매뉴얼
7-7.
SCHEMATIC DIAGRAM – AUDIO Board – •
(PLAYBACK)
REC BIAS (R)
(DECK B)
See page 33 for IC Block Diagram.
PB EQ AMP
(DECK A)
PB LEVEL (L)
(DECK A)
PB LEVEL (R)
(DECK A)
PB EQ AMP
(DECK B)
PB LEVEL (L)
(DECK B)
PB LEVEL (R)
(DECK B)
SWITCHING
REC BIAS (L)
(DECK B)
REC BIAS
-6.8
BIAS OSC
NC
A +7.5V
APB–LCH
APB–RCH
AGND
BPB–LCH
BPB–RCH
D
(Page 28)
A –7.5V
–VBIAS (–7.5V)
+VBIAS (+7.5V)
B–REC–RCH
B–REC–LCH
TC–HEAD–GND
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : TAPE PLAYBACK
(
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
25
25
) : RECORD
Les composants identifiés par une marque 0 sont
critiques pour la sécurité. Ne les remplacer que
par une pièce portant le numéro spécifié.
HTC-NX1