Text preview for : sch12.pdf part of panasonic sa-dx950 service manual with schematics



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SCHEMATIC DIAGRAM - 12
TO
: +B SIGNAL LINE : -B SIGNAL LINE : FM/AM SIGNAL LINE TUNER PACK
(RAN0002EM)

PHONO EQ CIRCUIT CP101
1 2 3 4 5 6 7 8 9 10 11




+14V
SD_
7.5V
RDS_




IFIF_
TU_ROUT
TNR_CE_
TU_LOUT
TUN_DT


TUN_CK_
R463 R461
12K 180K +14V
R459 C461 C459 C463 PH_L_
68 6800P 0.022 50V4.7
-14V
R453 C451




R449
56
C455




<-16.17V>
390 50V4.7




<-0.13V>
1000P R467
10V33
C457




MTZJ7R5CTA R450
<0V>
<0V>




56
R469 47K
1K R468




C466




16V33
R465




C489
0.01


56K
4 3 2 1

C453
220K




R455
R451




10P
C469
L CH 180P 56K VSS 47K
R457




D401
270




C467
3




0.01
4
PHONO IC451
2
10V33
C458




R CH
C454
R456
220K




C470
R452




10P
56K




C490
1




16V33
C465
VCC




R466
0.01

56K
180P IC451
5 6 7 8
JK401 AN6558F



<14.21V>
<-0.14V>
<0V>


R470 <0V> OP AMP
R458
270




1K

C452 C456
R454
+14V
1000P
390 50V4.7
R460 C462 C460 C464
68 6800P 0.022 50V4.7 PH_R_




TUN_CK
TUN_DT
TNR_CE
R464 R462




PH_L_
PH_R_
+14V




IFIN_
-14V




RDS
12K 180K




SD
1 2 3 4 5 6 7 8 9 10 11 12 13
W402


TO
MAIN CIRCUIT
TRANSFORMER CIRCUIT (CN401/CN402) ON
SCHEMATIC DIAGRAM-9


Q752
TO
2SC3940AQSTA
W752 REGULATOR
MAIN
CIRCUIT 3
<5.94V> <9.65V>
<6.61V>
Q753 RL751
RSY0040M-0
SWITCH CIRCUIT
C757 16V10




(W752) ON 2 <9.65V> 2SK2880CTA
REGULATOR
RVD1SS133TA




SCHEMATIC 1 <6.61V>
3


1
C754
0.01




S961
DIAGRAM-10
D753
D754




<6.61V>
D755




SP B
C752
4


2




0.01 S950
D752
25V330




D751
16V47


C753
C755




D756 T751
MTZJ6R8BTA RTP1H5B001 POWER




R950
W906




1K
<0.14> S951
R755 <3.57V> 1
2.2K Q751 TO
D751-D754 PANEL 2 SP A
1SR35400V D757
<3.58V> R942
MTZJ16CTA <0V> CIRCUIT 3
(W906)ON 270 D942
Q754 <0V> SCHEMATIC 4 SLR325YCT31
C751 R943 ORANGE D943
RVTDTC114EST <0V> DIAGRAM-8 270
REGULATOR Q751 1000P 5 SLR325VCT31
RVTDTC143ZST RED
RELAY DRIVE


F1 T2.5A
F4 T6.3A
1 FC702 FC701
T701
2 FC708 FC707 RTP1Q5B009-V
3 F3 T6.3A CN751
ERZV10V511CS




L1
4
1
FC706 FC705 L2
Z751




TO 5 2 FOR EB
MAIN 6 H1 3
CIRCUIT CT FOR E/EG
7 H2
(W701) ON
8 0
SCHEMATIC CT
DIAGRAM-10 9
L701
10 RLQT801M-W
11
12
W701 F5 T1A 120
L
FC710 FC709 AC 230V ( 50Hz ) E/EG
C741 N AC 230V-240V ( 50Hz ) EB
0.1

JK791
D741




D744
D742

D743




TO W702
DIGITAL 3
CIRCUIT
(CN702) ON 2
SCHEMATIC 1
D741-D744
DIAGRAM-6 1SR35400V


SUB-TRANSFORMER
CIRCUIT