Panasonic SA-AK18 Service Manual page 54

SA-AK18
8 57 54 52 51
56 55 53
-28.5V
((-28.5V))
<-28.5V>
GRD9 50
-28.5V((-28.5V))<-28.5V>
GRD8 49
-12.9V((-12.9V))
<-12.9V>
SPC 48
-12.9V((-12.9V))
<-12.9V>
SPB 47
-12.9V((-12.9V))
<-12.9V>
SPA
46
-30.6V((-30.6V))
<-30.6V>
CHG_PLGR 45
0V((0))<0V>
CHG_SW1
44
0V((0))<0V>
CHG_SW2 43
4.9V((4.9V))<4.9V>
MBP2 42
0V((0))<0V>
MBP1 41
0V((0))<0V>
VSS 40
2.3V((2.3V))<2.3V> R917
XOUT 39
2.3V((2.3V))<2.3V> 680
XIN
38
R920
2.4V((2.4V))<2.4V>
XCOUT
37
1.7V((1.7V))<1.7V>
XCIN 36
4.9V((4.9V))<4.9V>
35
/RESET
3V((3V))
<3V>
SYNC 34
5V ((5V))
<5V>
ECONO 33
32
DCDET
RMT 31
3 24 25 26 29 30
27 28
R911
47K
C647
0.01
R961
10K
C667
0.01
16 15
14
1 2
2.5V
((2.5V))
<2.5V>
C668
50V0.1
C669
50V0.1
ANA R912
100K
R953
2.7K
20 19 18 17 16 15 14 13 12 11 10
CP605
<0V>
ECONO
Q611
4.3V
10K
KRC102MTA
((4.3V))
10K
<4.3V>
POWER SUPPLY
0V
CONTROL
((0V))
R915
<0V>
SYS6V
330
D643
RVD1SS133TA
D633,D634,
D635.D639
RVD1SS133TA
D633
D634
D635
D639
CHG_PLGR
R966 100
R967 100
Q609
C656
68P
0.9V
0V
C657
((0.9V))
((0V))
68P
<0.9V>
<0V>
0V
330K
((0V))
<0V>
R918
10M X601
0V
0V
C651 C654
((0V))
((0V))
18P
15P
<0V>
<0V>
Q608
R926
4.9V((4.3V))<5V>
1K
R932
4.9V 22K
((4.9V))
R933
R923
470
<4.9V>
10K C662
50V2.2
0V
22K
((0V))
22K
<0V> D638
0V
((0V)) RVD1SS133TA
<0V>
Q607
Q607
KRC103MTA
RESET CONTROL
R924
Q608,Q609
22K
KTC3199GRTA
X'TAL CONTROL
C650
0.01
5V
((5V))
<5V>
11 10 9
13 12
IC603
IC603
M62457AFPE1
SPECTRUM
ANALYZER AMP
3 4 5 6 7 8
2.5V
((2.5V))
<2.5V>
R942
100K
C649
R969
100K
16V10
C648
50V0.1
R921
5.6K
9 8 7 6 5 4 3 2 1
TO
MAIN
CIRCUIT
(CN303) ON
SCHEMATIC
DIAGRAM-8
Q902
4.7K
0V
((0V)) 4.7K
5V
<0V>
((1V))
SUBQ <5V>
0V
4.7K
((1.2V))
4.7K
<0V>
0V
((0V)) Q901
<0V>
BLKCLK
5V
((0.5V))
SPC
<5V>
SPB
4.7K
Q903
4.7K
SPA
0V
R948 ((0V))
<0V>
4.7K
SW1
/CDRST
SW2
R954 R972
10K
D647
MA700ATA
SQCLK/ST_DO
R955
5.6K
R945 100
PLLCE
R946 100
PLLDA
R947 100
PLLCLK
D644
RVD1SS133TA
CD
DCDET
D645
RVD1SS133TA
R950
VREF+
22K
SYNC
PLLCE1
VREF+
DVREF+
LED9V
HPSW
R984
SW5V
1K
DVREF+
-VP
SYNC
FL1
FL2
ECONO
DVREF+
54
0V
((1.5V))
<0V>
R971
10K
0V
((0V))
<0V>
CP606
REST SW
1
RST
2
STAT
3
10K
SUBQ
4
SQCK
5
BLKCK
6
SPEED
7
MLD
8
D642 MA700TA TO
MDATA
9
CD SERVO
D641 MA700TA
MCLK
CIRCUIT
10
D640 MA700TA
PGND
(CN702) ON
11
SCHEMATIC
+7.5V
12
DIAGRAM-2
TX
13
LD_SW
14
DGND
15
CD3.3V
16
Rch OUT
17
AGND
18
Lch OUT
19
C900 100P
C901 100P
CP604
LED9V
1
SPEANA
2
SW5V
3
CHG_PLGR
4
VREF+
5
DCDET
6
PLLCLK
7
PLLDA
8
PLLCE1
9
CHG_HALF
10
CHG_CCW
11
CHG_CW
12
SQCLK/ST_DO
13
(SPLATCH) SER4
14
SW1
15
LVL2
16
DGND
17
-VP
18
HP_GND
19
HPR
20
HPL
21
HPSW
22
SW2
23
24
25
26
H601/W601
SYNC
1
TO
FL1
2
AC TRANS
FL2
3 CIRCUIT
SYS6V
(CN502) ON
4
SCHEMATIC
ECONO
5
DIAGRAM-14
GND2
6
TO
MAIN
CIRCUIT
(CN302) ON
SCHEMATIC
DIAGRAM-9