Panasonic SA-AK18 Service Manual page 38

SA-AK18
SCHEMATIC DIAGRAM-5
R401
JK305
Lch
AUX
Rch
R201
10K
RCH
LCH
SD
R454
DO/ST 10K
CE
C301
1000P
CN303
CDL
1
A GND
2
CDR
3
CDDGND
4
CD3.3V
5
6
CD7.5V
7
PGND
8
TO
+7.5V
9
PANEL
MIC
10
CIRCUIT
MIC G
11
(CP605) ON
CHG_AD1
12
SCHEMATIC
SD
13
DIAGRAM-10
CHG_AD2
14
SPCLK
15
SPDATA
16
CD
17
MUTEA
18
PCONT
19
LVL1/VBASS
20
CN304
PBL
10
PBR
9
AGND
8
TO
RECL
7
DECK
RECR
6
CIRCUIT
+15V 112mA
5
(H1001/W1001)
DGND
ON SCHEMATIC 4
MO+B
DIAGRAM-12 3
MOGND
2
MECA.G
1
: +B Line
: -B Line
10K
R233
180K
R433
180K
R301
22K
CLA=276mV
MUTEA R302
302
18K
R210
TUNERL
1K
R207
R209 1.5K
PBR
47K
R410
1K
80mV
R409
47K
-7.0V
R303
SD
10 10V330
ST_DO
301
C300
0.01
R407
1.5K
PBL
15V
+7.5V
((0V))
<0V>
PLLCK
PLLDA
PLLCE
R300
4.7K
R212 R412
CDL
4.7K 4.7K
CDR
R211
CD3.3V
2.2K
CDR
CD7.5V
CDL
+7.5V
MIC
CHG_AD1
SD
CHG_AD2
SPCLK
SPDATA
CD
MUTEA
PCONT
LVL1
PBL
PBR
15V
75-700mA
MO10V
: Main Signal Line
: AUX Signal Line
R310
R307
1K C308
10K
0.047
C207
50V1
C305 0V((0V))
1500P
<0V>
64 63 62 61 60 59 58 57 56 55 54
R305
10K
65
C306
50V0.1
66 IN2F VIDEO/MD
0V((0V))
<0V>
67 IN2E TUNER
0V((0V))
<0V>
68 IN2D TAPE PB
0V((0V))
<0V>
69 IN2C CD
70 IN2B EXTIN
0V((0V))
<0V>
71 IN2A PHONO/AUX
-7.5V((-7.5V))
<-7.5V>
IC303
72 AVSS
0V((0V))
C304
<0V>
73 AGND
IC303
0V((0V))
M62433AFP
<0V>
74 IN1A PHONO/AUX
AUDIO IC
75 IN1B EXTIN
0V((0V))
<0V>
76 IN1C CD
0V((0V))
<0V>
IN1D TAPE PB
77
0V((0V))
<0V>
78 IN1E TUNER
79
IN1F VIDEO/MD
0V((0V))
<0V>
80
R308
3.3K
1 2 3 4 5 6 7 8 9 10 11
0V((0V))
<0V>
R306
1.2K
R304
C307
R309 R344
22K 1000P
3.3K 10K
0V
0.1V
D311
((0.1V))
1SS355TE17
<0.1V>
Q304
Q304
0V
KTC3875GRTA
((0V))
SWITCHING
<0V>
(LEVEL 3DAI)
R213
39K
R411
2.2K
R215
1K
38
: Playback Signal Line
: CD Signal Line
C217 C218
0.033 50V0.15
53 52 51 50 49 48 47 46 45 44 43 42 41
0V((0V))
VOLOUT2
<0V>
40
0V((0V))
<0V>
BUFIN2
39
0V((0V))
<0V>
BUFNF2 38
0V((0V))
<0V>
AUX SENS 263mV BUFOUT2 37
7.6V((7.6V))
<7.6V>
AVDD 36
0V((0V))
<0V>
DGND 35
5V((5V))
<5V>
LATCH 34
0V((0V))
<0V>
DATA 33
0V((0V))
<0V>
CLK 32
5.2V((5.2V))
<5.2V>
DVDD 31
0V((7.5V))
<7.5V>
PLLCE PORTB 30
0V((0V))
<0V>
AI3D PORTA 29
0V((0V))
<0V>
AUX SENS 263mV BUFOUT1 28
0V((0V))
<0V>
BUFNF1 27
0V((0V))
<0V>
BUFIN1 26
0V((0V))
<0V>
25
VOLOUT1
12 13 14 15 16 17 18 19 20 21 22 23 24
C417 C418
0.033 50V0.15
R413
39K
R415
1K
: FM/AM Signal Line
: Record Signal Line
: MIC Signal Line
40mA
R321
2.7
C312
0.1
C223
50V22
R218
R217
3.3K
68K
C222
470P
C221
C220
0.056
1000P
R216
5.6K
R456
4.7K
R453
4.7K
R416 C421
5.6K 0.056
C422
470P
R417
C420
68K
1000P
R418
3.3K
C423
50V22