Text preview for : sch18_20.pdf part of panasonic sch18 20 panasonic DVD SA-HT75 sch18_20.pdf
Back to : sch18_20.pdf | Home
SCHEMATIC DIAGRAM - 18
: +B SIGNAL LINE : -B SIGNAL LINE : DVD AUDIO SIGNAL LINE : MAIN SIGNAL LINE
TO
FAN MOTOR MAIN CIRCUIT
M (CP703/CP704) ON
SCHEMATIC DIAGRAM-23
DVDREG CIRCUIT 1 2
CP704 CN703 CN704
1 2 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4
FAN+
SGND
6CHC
6CHSR
6CHSL
FAN-
6CHFR
6CHFL
MUTE_ZFLAG
PGND
DCIN
FAN+
FAN-
MIXL
MO+9V
MIXR
6CHSW
26
AUDIODIGITAL
25
DGND
24
CLK
23 C275 R277
STAT 16V10 10K
22 R280
CMD R279
21 100K 100K +7.5V
WIDE1
C279 R281
R278
C278
470P
C277
20
470P
22K
ZFLAG C276 R283 -7.5V
19 16V10 10K 18K C281 R285 C297
R284
AMUTE
R282
16V22 1K 16V22
18K
22K
18 AC3CH/DACMUT
C289
17
ADAC5V C280 0.1 47P IC252 Q251-Q253
47P
TO
16
ADAC5V M5228FPE1 B1GFGCAA0001
15 QUAD OP AMP MUTING SWITCH
DVD MODULE 14
MIXL
(2)CIRCUIT GND Q252
((7.93V))
<7.93V>
13
(FP4202) ON
((0V))
((0V))
((0V))
((0V))
((0V))
((0V))
<0V>
<0V>
<0V>
<0V>
<0V>
<0V>
MIXR R305 C299
12
SCHEMATIC GND 1 2 3 4 5 6 7 <0V> 6 1 <0V> 47K 2200P
DIAGRAM-13 11
FL R299
((0V)) ((0V))
+VCC
10
-
-
GND 1K 2 <0.67V>
+
SR SL
+
<0.67V> 5
9
8
FR
C
IC252 SW +
R300
1K
((0.67V)) ((0.67V))
R306 C300
-VCC
GND +
<0V>
4 3 47K 2200P
<0V>
-
-
7
SL ((0V)) ((0V))
6 14 13 12 11 10 9 8 C282
GND
((0V))
((0V))
((0V))
((0V))
((0V))
((0V))
((0V))
16V22
<0V>
<0V>
<0V>
<0V>
<0V>
<0V>
<0V>
5 6CHSL
SR R286 C298
4 1K 16V22
GND
3 R295 C291
CNT C285 C286 Q253 C301 6CHSR
1K 16V22
C290
2 16V22
0.1
GND 47P 47P
R291
R293
22K
R294
R292
R307 C303
18K
1
27K
22K
SW R287 <0V> 6 1 <0V> 47K 2200P 6CHC
CN1304 10K ((0V)) ((0V))
C287 C288 R301
C283 R289 1K
16V10 470P 470P <0.67V> 5 2 <0.67V>
100K
R290 R302 ((0.67V)) ((0.67V))
100K 1K R308 C304
<0V> 4 3 <0V>
47K 2200P
C284 R288 ((0V)) ((0V))
16V10 10K
R271 18K R296
1K
C265 R265 R269 C269
10K 22K 47P C292 C302 6CHSW
16V10
16V22 16V22
R273
1K C273 C293 6CHFL
16V22 16V22
Q251
R267
C267
470P
6CHFR
100K
C272 R303 C295
0.01 47K 2200P
<0V> 6 1 <0V>
<7.85V>
R297
((7.8V))
1K ((0V)) ((0V))
((0V))
((0V))
((0V))
<0V>
<0V>
<0V>
R298 <0.67V> 5 2 <0.67V>
5 6 7 8 1K ((0.67V)) ((0.67V))
R275
VCC 150K R304 C296
R268
100K
C268
470P
C271
<0V> 4
3 47K 2200P
0.01
FL <0V>
((0V)) ((0V))
IC253 R276
150K
FR
VEE
4 3 2 1
<0V>
((0V))
<-7.8V>
((-7.8V))
<0V>
((0V))
<0V>
((0V))
C266 R266 R270 22K C270
16V10 10K 47P R274 C274 C294
R272 18K 1K 16V22 16V22
MUTE_ZFLAG
C309
50V3.3 R319 R321
1K
Q255 22K IC253
<1.24V> <1.45V> KIA4558FEL
((-3.93V)) ((5.06V)) DUAL OP AMP
Q254
<0V>
B1GBCFJN0004
D251 CONTROL SWITCH
((5.06V)) <4.67V> (ZFLAG : HIGH)
((0V))
Q255
Q256 <4.27V> D252 Q254 <0V>
B1GDCFJJ0002
((0V)) ((3.24V))
MUTING CONTROL SWITCH
<0V> <0V> (SUPPLY)
((0V)) ((0V))
D251-D252,D451 Q256
1SS355TE17
B1GBCFJN0004
D451 MUTING CONTROL SWITCH
SCHEMATIC DIAGRAM - 19
: +B SIGNAL LINE CD LOADING CIRCUIT
DVDREG CIRCUIT IC1
C0GAM0000005
MOTOR DRIVE
NC VS VCC VREF NC
10 9 8 7 6 5 4 3 2 1
TO
DVD MODULE(2) CIRCUIT (FP3202)
ON SCHEMATIC DIAGRAM-12 C1
C2
0.01 16V100
CP6251
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 M
R1 1K
M+9V-CTL
DGND
M+9V
M+9V
M_GND
M_GND
D+5V
D+5V
DGND
D+2.5V
D+2.5V
DGND
DGND
A+5V
A+5V
AGND
AGND
RM1
CD DETECT D2
Q1 B0BA4R600003
CIRCUIT B1GACFGG0004
POWER SUPPLY
C716
CONTROL Q1
25V2200P C717
0.01 1 1
2 2 L
1
3 3 PLUNGER
SW4 2
W2 W2 BOTTOMSW
3
POSITION
4
PSLED
5
D_GND TO
6
W1 SW2 SW2 DVDREG
1 1
P_GND
7 CIRCUIT
D1 2 2
SW1 SW1
8 (CN1) ON
GP1S94
3 3 SW3 OPEN
9 SCHEMATIC
4 4 10 DIAGRAM-20
CLAMP
11
CCW
12
DRIVEPOWER
13
HALF
14
SW5 CW
CN1
SPINDLE
POSITION R710
560
R709
560 Q701
Q701 <14.93V>
((14.93V))
CIRCUIT B1GDCFJJ0002
SWITCH (15V)
<0V>