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7-11. SCHEMATIC DIAGRAM – AUDIO Board – •
(PALYBACK)
6.9
REC BIAS (R)
(DECK B)
See page 47 for IC Block Diagram.
PB EQ AMP
(DECK A)
PB LEVEL (L)
(DECK A)
–7
PB EQ AMP
(DECK B)
PB LEVEL (L)
(DECK B)
–7
SWITCHING
REC BIAS (L)
(DECK B)
REC BIAS
–6.5
–6.5
–6.5 (–7.2)
T621
BIAS OSC
–6.5
R492 1.5K
R491 820
R482 1.5K
R481 820
6.9
29
29
NC
A+7.5V
APB-LCH
APB-RCH
AGND
BPB-LCH
BPB-RCH
C
A–7.5V
MAIN BOARD
CN303
–VBIAS (–7.5V)
(Page 32)
+VBIAS (+7.5V)
BREC-RCH
BREC-LCH
TC-HEAD-GND
• Voltages and waveforms are dc with respect to grou
under no-signal conditions.
no mark : TAPE PLAY
(
) : RECORD
The components identified by mark 0 or dotted
Les composants identifiés par une marque 0 so
line with mark 0 are critical for safety.
critiques pour la sécurité. Ne les remplacer qu
Replace only with part number specified.
par une pièce portant le numéro spécifié.
HCD-XG60/XG50
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