Block Diagram - Power Section - Sony STR-KM5500 Service Manual

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