Sony STR-KM5500 - Block Diagrams - Power Section Details; Power Amplifier Stages Schematic Details

STR-KM5500
STR-KM5500
2323
6-6. BLOCK DIAGRAM – POWER Section –
6
2
3
DRIVE
PRE DRIVER
IC701
IN 1
+VOUT1
-VOUT2
8
12
11
IN 2
+VOUT2
-VOUT2
FL-CH
FR-CH
FL-CH
FR-CH
SL-CH
C-CH
SR-CH
SL-CH
SR-CH
+3.3V
(STBY)
+6V
+5V
(DSP)
+5V
(DCDC)
-7V
+7V
TU+9V
61
12
11
PRE DRIVER
IC601
+VOUT2
-VOUT2
2
3
+VOUT1
-VOUT2
6
2
3
DRIVE
PRE DRIVER
IC801
IN 1
+VOUT1
-VOUT2
8
12
11
IN 2
+VOUT2
-VOUT2
70
58
48
+9V
(STBY)
+5V
REG
13
IC251
+5V
REG
13
IC252
+3.3V
REG
13
IC1904
+9V
REG
13
IC1902
-15V
+15V
+7V
REG
13
IC350
-7V
REG
23
IC352
+6V
REG
13
IC253
C-CH
SB-CH
FRONT RY HP RY C/SUR RY SW_PREOUT_RY HP DET
FRONT_A_RY
PROTECTOR
68
BRIDGEABLE_RY
HP_DETECT
FUSE_DETECT
STOP
63
55
HP_RY
62
POWER_RY
69
PRE_OUT_SW_RY
66
C/SW/REAR/SB_RY
FRONT RY
HP DETECT
HP RY
SW_PREOUT_RY
C/SUR RY
SYSTEM
CONTROL
IC1101 (6/6)
PRE
DRIVE
SW-CH
PRE
DRIVE
SB-CH
6
DRIVE
IN 1
8
IN 2
PRE
DRIVE
$
PHONES
J790
R
L
L
AUDIO
OUT
SUB
WOOFER
CENTER
SURROUND
R
TB602
TB601
TB602
J405
SUBWOOFER
TB607
FRONT
SPEAKERS
IMPEDANCE
USE 8-16Ω
T901
POWER
TRANSFORMER
(MAIN)
T902
POWER
TRANSFORMER
(SUB)
AC IN ~
RECT
D921
RF912
RF913
RY901
D990
RF910
RF911
RF940
RECT
D910-913
RECT
D941
D1301
D1302
D1301
D1302
PROTECTOR
D326-327
Q320,321,325
POWER AMP
Q701-704,
Q751-754
POWER AMP
Q801-804,
Q851-854
POWER AMP
Q601-604,
Q651-654
RY350
RY360
RY301
RY375
RELAY
DRIVER
Q375
RELAY
DRIVER
Q360
RELAY
DRIVER
Q301
RELAY
DRIVER
Q350
RY920
RELAY
DRIVER
Q920
RY355
RELAY
DRIVER
Q355
CURRENT
DETECT
Q711,712
CURRENT
DETECT
Q761,762
CURRENT
DETECT
Q611,612
CURRENT
DETECT
Q661,662
CURRENT
DETECT
Q861,862
CURRENT
DETECT
Q811,812
RELAY
DRIVER
Q901
AC IN
DETECT
Q990
RECT
D950-953
120V
S901
220V
240V
VOLTAGE
SELECTOR
• Signal path
: AUDIO (ANALOG)
• R-ch is omitted due to
same as L-ch.
• Abbreviation:
E51: Chilean and Peruvian
EA: Saudi Arabia
TUNER/
AUDIO
SECTION
(Page 18)
F902
F903
F901 JS904
JS903
JS906
JS906
EA: T4AL 250V
E51: T5AL 250V
Except
E51, EA
Except
E51, EA
Ver. 1.1