Panasonic SAHT-440-P, SAHT-440-PC Service manual
ORDER NO. MD0702025SE
A6
DVD Home Theater Sound System
SA-HT440P
SA-HT440PC
Colour
(S).......................Silver Type
Subject :
Please file and use this supplement manual together with the service manual for
Model No.SA-HT440PPC, Order No. MD0609312SE
Additional Information (Circuitry Improvement)
CONTENTS
Page Page
1 Notes 2
2 Block Diagram (Revise)
3 Schematic Diagram (Revise)
3.1. Power (SMPS) Circuit
4 Printed Circuit Board (Revise) 7
3
5
5
4.1. Power P.C.B.
5 Replacement Parts List
7
9
© 2007 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-HT440P / SA-HT440PC
1 Notes
This supplement includes revised contents to the original service manual for below sections:-
1) Schematic Diagram (Section 4)
2) Printed Circuit Board (Section 5)
3) Replacement Parts List (Section 7)
2
2 Block Diagram (Revise)
SA-HT440P / SA-HT440PC
M
Q5740-5742
Q5744
FAN MOTOR
DRIVE
+B
Q5801,
Q5802
FAN DC DETECT
Q2904
D2915
+5V
REGULATOR
Q2901,
Q2909
TH5702
Q5930-5932
TRANSFORMER
TEMP. DETECT
+B
IC2902
C0DAZYY00001
+9V REGULATOR
31
OUT IN
DC DETECT
+B
-B
IC5702
C0DABFC00002
SHUNT
REGULATOR
31
Q2903
D2902
+7V
REGULATOR
Q2906,2907
-7V
REGULATOR
2
Q5706,D5713
REGULATOR
Q5746
Q5705
IC5721
T5721
+B
D5723
BACKUP TRANSFORMER
Q5704
Q5748
CURRENT
LIMITTING
SWITCH
SYNC
SWITCH
PC5721
FEED BACK
Q5745
FEED BACK
C0DABYY00002
SWITCHING REGULATOR
8
D
7
D
5
START
2
VCC
4
FB
SIGNAL LINES
: MAIN SIGNAL LINE
: FM SIGNA
L LINE
: FM OSC SIGNA
: AUX SIGNAL LINE
( ) Indicates the Pin No. of Right Channel.
L LINE
: AM SIGNAL LINE
: AM OSC SIGNAL LINE
: FM /AM SIGNAL LINE
: MUSIC PORT SIGNAL LINE
NOTE : Signal Lines are applicable to the Left Channel only.
: DVD AUDIO SIGNAL LINE
: DVD VIDEO SIGNAL LINE
: CD-DA (AUDIO /VIDEO) SIGNAL LINE
IC2907
C0CBADG00023
+5V REGULATOR
OUT
+B
IC8111
C0DBZYY00018
+3.3V DC-DC
CONVERTER
1
+B
V0
CONT
QR8111, 8112
POWER CONTROL
IC2901
+B
IC2904
C0CAADE00007
+5V REGULATOR
31
OUT IN
+B
IN
VIN
5
IC2908
+5V REGULATOR
OUT IN
+B
Q2935, D2912
8
IC8151
C0DBEHG00006
+1.2V REGULATOR
42
OUT VCC
+B
+2.7V
+B
REGULATOR
C0DAZYY00001
+9V REGULATOR
31
OUT IN
IC2903
C0DAAMH00012
SWITCHING
REGULATOR
21
OUT IN
-B
Q5908, D5903, 5904
-B
FP2000
REGULATOR
Q5710
SWITCHING
D5711
D5712
D5716
D5748,49
D5741
T5701
D5701
Q5701
CURRENT
LIMMITTING
POWER TRANSFORMER
SWITCH
PC5701
FEED BACK
L5703
Q5747
SWITCHING
DZ5701
IC5701
STR-F6628
SWITCHING REGULATOR
4
VCC
3
DRAIN
1
FEED BACK
L5701
F1
C1DA00000275
P5701
AC INLET
CHANGE
SA-HT440P/PC BLOCK DIAGRAM
3
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