Schematic Diagram - Audio Board - Sony HTC-NX300 Service Manual

7-14. SCHEMATIC DIAGRAM – AUDIO Board – •
(PLAYBACK)
REC BIAS (R)
(DECK B)
See page 46 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
M
A –7.5V (Page 38)
–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
35 35
conditions.
no mark : TAPE PLAYBACK
( ) : RECORD
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
HTC-NX300