Schematic Diagram - Key Section - Sony XDR-S3HD Service Manual

XDR-S3HD
3-9. SCHEMATIC DIAGRAM — KEY SECTION —
R801 R802 R804 R805
S804 S803 S802 S801
W706
R806 R807 R808 R809 R810
S809 S808 S807 S806 S805
(Page 18)
(Page 18)
XDR-S3HD
CN305
W707 R830
CN306 CN304
JC835
R831
JC832
JW834 JC831
JC830
JC834
W708 R832
R833
• IC Block Diagrams
IC1 XC62EP1802MR (MAIN BOARD)
IC2 XC62EP1802MR (MAIN BOARD)
5
PROTECTION
1 2
S812
IC301 BD3870FS-E2 (POWER BOARD)
24 23 22
TREBLE1 TREBLE2
S813 f =8kHz f =8kHz
0 0
VCC/2 VCC/2
1 2 3 4 5
IC302 BA5417 (POWER BOARD)
T.S.D.
STANDBY
BS
BS
1 2 3 4 5 6 7 8
20 20
IC4 XC6213B332MR (MAIN BOARD)
VIN 1
4
ON/OFF
CONTROL
CURRENT +
VREF
LIMIT
–
3
VSS 2
CE 3
21 20 19 18 17 16 15 14 13
BASS2 BASS1
LOGIC
f =80Hz f =80Hz
0 0
VCC/2
VCC/2
VCC/2
6 7 8 9 10 11 12
+ +
– –
FILTER
9 10 11 12 13 14 15
5 VOUT
4 NC
VOLTAGE
REFERENCE