Block Diagram - Audio Amp Section - Sony TAV-L1 Service Manual

TAV-L1
7-8. BLOCK DIAGRAM – AUDIO AMP Section –
AMP BUS
(Page 53)
16
• SIGNAL PATH
: AUDIO (ANALOG)
: AUDIO (DIGITAL)
MAIN SYSTEM CONTROLLER
IC602 (3/5)
AU_HP_MUTE_OUT
HP_DETECT
DAMP SCDT
DAMP SHIFT
DAMP LATCH1
DAMP LATCH3
DAMP INIT
DAMP SOFT MUTE
OVERFLOW1
OVERFLOW2
DRIVE_RST (EN)
DRIVE_OCP (DIAG)
TAV-L1
STREAM PROCESSOR
IC305
SDO1
31 DATA OUTL1 11
MCK
36 XFSIIN
OUTL2
BCK
30 BCK
LRCK
OUTR1
29 LRCK
SCDT OUTR2
21 SCDT
SHIFT
22 SCSHIFT
LATCH1
23 SCLATCH
XFSOIN 48
INIT
27 INIT
SOFTMUTE
19 SOFTMUTE
OVF1
24 FLAGROVF 37
FSOCKO
25 FLAGLOVF 38
FSOI
XFSOOUT 14
HPOUTL1 45
43
HPOUTL2
41
HPOUTR1
39
HPOUTR2
11
10
STREAM PROCESSOR
IC304
SDO3
31 DATA 11
OUTL1
MCK
36 XFSIIN
OUTL2
BCK
30 BCK
LRCK
29 LRCK
SCDT
21 SCDT
SHIFT
22 SCSHIFT
LATCH3
23 SCLATCH
INIT
27 INIT
SOFTMUTE
19 SOFTMUTE 48
XFSOIN
OVF2
24 FLAGROVF FSOI 38
25 FLAGLOVF
SCDT
1
SHIFT
2
LATCH1
51
LATCH3
53
INIT
54
SOFTMUTE
55
OVF1
49
OVF2
50
47
48
POWER AMP
IC306
4 PWM_A OUT_A 33
9 6 PWM_B 30
OUT_B
6
4
OSC
14 PWM_C 25
BUFFER OUT_C
IC303
16 PWM_D OUT_D 22
X301
49.152MHz
5 15 3
POWER AMP
IC307
4 PWM_A 33
OUT_A
9 6 PWM_B OUT_B 30
14 PWM_C 25
OUT_C
16 PWM_D OUT_D 22
5 15 3
PROTECT DETECT
Q307
54 54
FRONT LCH+
SP301, 303
LPF
SPEAKER
FRONT LCH –
LPF (FRONT L-CH)
DC OFFSET
DETECT
Q305, 309
FRONT RCH+
SP302, 304
LPF
SPEAKER
FRONT RCH –
LPF (FRONT R-CH)
DC OFFSET
DETECT
Q306, 310
LPF
HEAD
LPF
PHONE
AMP
LPF
IC301
LPF
MUTING MUTING
Q2806 Q2805
MUTING
CONTROL
Q601
SW+
SP1301, 1302
LPF
SPEAKER
SW –
LPF (SUBWOOFER)
DC OFFSET
DETECT
Q304, 308
D902
FAN MOTOR
M1201
M
AMP +12V DRIVE
(FAN)
Q913 – 915
J9852
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