Service manual

HT-DD5000/C
– 13 –
Figure 13 BLOCK DIAGRAM (2/4)
T.F
Q611
T.F
D601-D604
RLY601
POW-1
D623-D626
D622
D621
Q405
F608
800mA/125V
T602
POWER
TRANSFORMER
POWER TRANSFORMER
T601
Q406
Q620
VOLTAGE
REGURATOR
Q622
VOLTAGE
REGURATOR
VOLTAGE
REGURATOR
VOLTAGE
REGURATOR
SWITCHING
+7V
A+12V(ANALOG)
A-12V(ANALOG)
VH(+) VH(–)
–7V
µ-COM5V
Q601
VOLTAGE
REGULATOR
SWITCHING
POW-2
VOLTAGE
REGULATOR
Q602
Q603
SWITCHING
POWER SW
µ-COM
FL VF1,VF2,–VPP
VP
VF2 (AC)
VF1 (AC)
Q623
Q625
SWITCHING
VOLTAGE
REGURATOR
VOLTAGE
REGURATOR
AC323V A25V
VL(–)
VL(+)
D627-D630
F606,F607
5A/125V
F609,F610
10A/125V
P2GND M2GND A2GND D2GND AC32GND
VOLTAGE
REGULATOR
u-COM2GND AC3D2GND V2GND
+
+
–
GND
–
GND
+
+
–
GND
–
GND
SO681
CENTER/SURROUND
SPEAKER
/SUB WOOFER
TERMINAL
SUPER WOOFER
CENTER REAR L-CH REAR R-CH
SWITCHING
REAR R-CH OUT
REAR L-CH OUT
RLY682
RLY681
RLY654
+
FRONT-A L-CH
FRONT-A L-CH OUT
RLY651
+
FRONT-A R-CH
–
GND
–
GND
+
+
FRONT-B L-CH
RLY652
Q651 Q654
–
GND
Q656 Q682 Q681
Q653
–
GND
CENTER OUT
SWITCHING
SWITCHING
FRONT-A R-CH OUT
Q652 Q655
RLY653
SUPER WOOFER OUT
SWITCHING
SW RLY C-RLY R-RLY
B-SP A-SP
µ-COM
R-CH IN L-CH IN
S2WOOFER IN
IC701 STK41009 POWER AMP.
2 3
8
7
1
4
12
18
22 24
14 15
26
VH(+) VL(+)
VH(–) VL(–)
POSISTOR
µ-COM
IC751 STK41009 POWER AMP.
2
3
8
7
1
4
12
18
22
24
14 15
26
VH(+) VL(+)
VH(–) VL(–)
POSISTOR
µ-COM
REAR2L IN REAR2R IN
CENTER IN
Q703 Q704 Q705
Q706 Q707
Q753 Q754 Q755
µ-COM
PROTECT
FRONT-B R-CH
FRONT-B L-CH OUT
SWITCHING
SWITCHING
SWITCHING
SP-A
SP-B
SP-A/B SELECT SWITCH
VOLUME
SECTION
F611
1.25A/125V
F602
6A/125V
AC POWER SUPPLY CORD AC 120V 60Hz
SO601 AC OUTLET AC120V,60Hz
F601
1A/125V
Q621
SO651
FRONT
SPEAKER
TERMINAL
Q624