Block Diagram -Amp Section - Sony HCD-ZUX999 Service Manual

5-4. BLOCK DIAGRAM – AMP Section –
POWER AMP
USB
E
F-L 18
SECTION
(Page 32)
R-CH 14
19 TD ARARM
USB
F
S-L
SECTION
(Page 32)
D870
INTERNAL
TEMPERATURE
PROTECT
Q870
82
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: TUNER (ANALOG)
HCD-ZUX999
IC900
11
10
8
9
OVER LOAD
DETECT
Q905, 915
ST-BY
16
DC BALANCE
DETECT
Q855, 856
TH851
TEMPERATURE
Q865, 866
POWER AMP
IC930
18 11
10
R-CH 14 8
9
19 TD ARARM
ST-BY
16
MUTE
SWITCH
Q850, 891
41
SYSTEM CONTROL
IC111 (4/6)
USB
G
DBFB
SECTION
(Page 32)
RY960
D875
D860
RELAY DRIVE
Q960
PROTECT
Q860, 861
D891
OVER LOAD
DETECT
Q935, 945
D861
44
SP/FAN PROTECTOR 73
33 33
D110
RY980
RELAY DRIVE
Q980
FAN MOTOR
DRIVE
FAN
Q111,112
CONTROL
Q119,122
HCD-ZUX999
TB001
L
FRONT
SPEAKER
SS-ZUX999
R ONLY
UNREG
FAN MOTOR
FAN903
M M
DRIVE
FAN
Q136, 137, 139
FAN MOTOR
CURRENT
DETECT
Q140, 141, 143
POWER
H
PROTECT
SECTION
(Page 35)
TB002
L
REAR
SPEAKER
SS-ZUX999
ONLY
R
UNREG
MOTOR +B
SWITCH
Q117, 118
FAN MOTOR
DRIVE
M M FAN901
Q114
FAN
FAN MOTOR
CURRENT
DETECT
Q131, 133, 134
FAN MOTOR
DRIVE
FAN902
M M
Q109
FAN
FAN MOTOR
CURRENT
DETECT
Q101, 105, 106