Panasonic SA-PT670P, Service Manual

Page: 8 / 17

8
2.4. Power (SA-PT770PN/PX)
With reference to original service manual (section 14.8) on page 117 for model no. SA-PT770PN/PX-K
FEED BACK
FEED BACK CIRCUIT
PC5720
SHUNT
REGULATOR
IC5801
Q5863
C0DABFC00002
3, 4
H5801*
7, 8
H5801*
11
CN2016 H2901*
VSS
- 13V
DC18V
VDD CN5500
CN5500
-7V
REGULATOR
Q2901
4
CN2017 H2900*
Q5841
DC DETECT
SYSTEM CONTROL
TO
-7V
5.3V
SW+5V
D+3.3V
NSW1.2V
DCDET
ECO CTL
6,7
CN2016 H2901*
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
CN2001 FP8101
1
CN2017 H2900*
11
CN2001 FP8101
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 1 2
8
CN2016
H2901*
OUT
VCC 1 2
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
3 TR
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...PN
C5HACYY00003...PX
VCC
D
FB
4
1
6
5
2
8
4
7
18
15
17
11
14
L5703
IC5701
SA-PT770PN/PX POWER BLOCK DIAGRAM
D5799
F2
D5843
7
CN2017 H2900*
TUNER PACK
T+9V 9
CN2002*
TH5702
AMBP
Q2928
SWITCHING
FROM
SYSTEM CONTROL
FOR PX ONLY
VOLTAGE SELECTOR
S5701
FOR PX ONLY
C0DAAMH00012
C0DAAYH00001
IC2903
SWITCHING
REGULATOR
CHANGE
C0DAAYY00042
C0DAAYG00001
SWITCHING
REGULATOR
IC2900
CHANGE