Panasonic SA-PT670P User manual

© Panasonic Corporation 2009. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
PSG0907022SE
A6
DVD Home Theater Sound System
Model No. SA-PT670P
SA-PT670PC
SA-PT670P9
SA-PT670PC9
SA-PT673P
SA-PT770P
SA-PT770PC
SA-PT770P9
SA-PT770PC9
SA-PT770PN
SA-PT770PX
Product Color: (K)...Black Type
Subject : Update to SMPS Circuit
TABLE OF CONTENTS PAGE PAGE
1Notes----------------------------------------------------------------- 3
2 Block Diagram (Update)---------------------------------------- 5
2.1. Power (SA-PT670P/PC & SA-PT670P9/PC9) ----- 5
2.2. Power (SA-PT673P)---------------------------------------6
2.3. Power (SA-PT770P/PC & SA-PT770P9/PC9)------7
2.4. Power (SA-PT770PN/PX)--------------------------------8
Please file and use this supplement manual together with the service manual for
Model No. SA-PT670P/PC-K, Order No. PSG0902001CE
Model No. SA-PT670P9/PC9-K, Order No. PSG0904031SE (Base Model. SA-PT670P/PC-K)
Model No. SA-PT673P-K, Order No. PSG0904039CE
Model No. SA-PT770P/PC-K, Order No. PSG0902003CE
Model No. SA-PT770P9/PC9-K, Order No. PSG0904031SE (Base Model. SA-PT770P/PC-K)
Model No. SA-PT770PN/PX-K, Order No. PSG0905020CE

2
3 Schematic Diagram (Update)----------------------------------9
3.1. SMPS Circuit (SA-PT670P/PC & SA-
PT670P9/PC9)----------------------------------------------9
3.2. SMPS Circuit (SA-PT673P) ---------------------------10
3.3. SMPS Circuit (SA-PT770P/PC & SA-
PT770P9/PC9)-------------------------------------------- 11
3.4. SMPS Circuit (SA-PT770PN/PX-K) -----------------12
4 Printed Circuit Board (Update) -----------------------------13
4.1. SMPS P.C.B. (SA-PT670P/PC & SA-
PT670P9/PC9) -------------------------------------------13
4.2. SMPS P.C.B. (SA-PT673P) ---------------------------14
4.3. SMPS P.C.B. (SA-PT770P/PC & SA-
PT770P9/PC9) -------------------------------------------15
4.4. SMPS P.C.B. (SA-PT770PN/PX) --------------------16
5 Electrical Replacement Parts List-------------------------17

3
1Notes
This supplement includes additional and revised contents to the original service manual for below sections:-
1. Update to Block Diagram (Power)
2. Update to Schematic Diagram (SMPS Circuit)
3. Update to Printed Circuit Board (SMPS P.C.B.)
4. Update to Electrical Replacement Parts List.

4

5
2 Block Diagram (Update)
2.1. Power (SA-PT670P/PC & SA-PT670P9/PC9)
With reference to original service manual (section 14.8) on page 112 for model no. SA-PT670P/PC-K
With reference to SA-PT670P/PC-K (section 14.8) on page 112 for model no. SA-PT670P9/PC9-K
FEED BACK
FEED BACK CIRCUIT
PC5720
SHUNT
REGULATOR
IC5801
Q5863
C0DABFC00002
3, 4
H5801*
7, 8
H5801*
11
CN2016H2901*
VSS
- 13V
DC18V
VDD
CN5500
CN5500
-7V
REGULATOR
Q2901
4
CN2017H2900*
Q5841
DC DETECT
SYSTEM CONTROL
TO
-7V
5.3V
SW+5V
D+3.3V
NSW1.2V
DCDET
ECO CTL
6,7
CN2016H2901*
VDDP
VSSP
ADAC5V
+ 18V
1
H5801*CN5500
FAN 18V
FAN DC
5
H2900* CN2017
C0DBFZG00001
SWITCHING
REGULATOR
1.2V
D +3.3V VCC
3
VCC
1
6
7
RST O
2
SYSTEM CONTROL
TO
IC8111
+7V REGULATOR
Q2903
Q2923, Q2924
Q2909
DC DETECT
DC DETECT
DC DET1
+7V
A+5V
13, 23, 25, 27
CN2001FP8101
1
CN2017H2900*
11
CN2001FP8101
D+5V
ADAC5V
M+9V
SYS5V
PCONT
SYNC
SYS5V
SYSTEM CONTROL
TO/FROM
Q2919
DC DETECT
13
H2901* CN2016
6
CN2017
H2900*
14
H2901* CN2016
9
H2901* CN2016
OUT VCC
12
8
CN2016 H2901*
OUT VCC
12
POWER
CONTROL
Q2902
QR5840
DC DETECT
PC5799
1
2
3
FEED BACK
RY5701
C0DAEMZ00001
SHUNT
REGULATOR
PC5702
SYNC
SWITCH
Q5899
RELAY DRIVE
Q5898
INVERTER
IC5899
T5751
D5896
D5798
BACKUP
TRANSFORMER
D
VCC
5
4
3
2
6
7
3TR
FB
SWITCHING
REGULATOR
MIP2F20MSSCF
2
IC5799
D5804
D5803
D5805
MAIN
TRANSFORMER
D5801
T5701
D5802
D5701 L5702 L5701 DZ5701
Q5720
CURRENT
LIMITING
SWITCH
F1
AC INLET
P5701
SWITCHING
REGULATOR
C5HACYY00004
VCC
D
FB
4
1
6
5
2
8
4
7
18
15
17
11
14
L5703
IC5701
SA-PT670P/PC POWER BLOCK DIAGRAM
D5799
F2
D5843
7
CN2017H2900*
TUNER PACK
T+9V
9
CN2002*
TH5702
AMBP
Q2928
SWITCHING
FROM
SYSTEM CONTROL
C0DAAMH00012
C0DAAYH00001
IC2903
SWITCHING
REGULATOR
CHANGE
C0DAAYY00042
C0DAAYG00001
SWITCHING
REGULATOR
IC2900
CHANGE