Main Circuit - Panasonic SC-AK320 Schematic Diagram

SCHEMATIC DIAGRAM - 4

MAIN CIRCUIT

R201
10K
RCH
C201
680P
AUX
C401
680P
LCH
R401
10K
JK305
C303
1000P
RCH R302
TO
CE
4.7K
TUNER
LCH R338
CIRCUIT
(1B) ON
PLLDA_2
0
SCHEMATIC
DO/ST
DIAGRAM-3
PLLCLK
2B
TGND
TO
+15V
R303
TUNER
DO/ST
10K
CIRCUIT
SD
(1A) ON
SCHEMATIC
+7.5V R382
DIAGRAM-3
DET_OUT
0
2A
D317
UDZSTE177R5B
10
PBL
9
PBR
8
AGND
TO
7
DECK
RECL
CIRCUIT
6
RECR
(H1001/
5
W1001) ON
+15V
SCHEMATIC
4
DGND
DIAGRAM-11
3
MO+B
2
MOGND
1
MECA.G
CN304
R307
47K
R308
47K
14
CHG_CW
13
CHG_HALF
12
8V
11
CHG_CCW
10
CLAMP
9
TO
OPEN
CD LOADING
8
SW1
CIRCUIT
7
(CN1) ON
PGND
C320
SCHEMATIC
6
0.47
SW2
DIAGRAM-13
5
DGND
4
5V
3
POSITION
2
BOTTOMSW
1
PLUNGER
CN309
: +B SIGNAL LINE
: AUX SIGNAL LINE
: FM/AM SIGNAL LINE
: CD SIGNAL LINE
C202 R202
100P 3.3K
R402
C402
3.3K
100P
PLLCE1
PLLDA
PLLCLK
C304
0.01
R203
R204
1K
47K
+15V
ST/DO/SQCLK
R403
R404
SD
1K
47K
R385
+9V
DET_OUT
27
R205
1K
R405
1K
R209 C204
100K 16V10
R210 R410
+15V
8.2K 8.2K
+9V
MO10V
LM_L
VREF+
R418
1K
C407
50V0.22
SW2
SW1
KTC3875GRTA
CHG_CW
LEVEL DETECTOR SWITCH
+9V
CHG_HALF
8V
CHG_CCW
LM_R
R218
1K
R309
22K C207
CHG_AD1
50V0.22
R310
R311
12K
10K
MO10V
VREF+
R312
220
SW5V
R313
22K
CHG_AD2
CHG_PLGR
R314
R315
12K <0.02V>
10K
VREF+ ((0.03V))
: MAIN SIGNAL LINE
: PLAYBACK SIGNAL LINE
: RECORD SIGNAL LINE
C241
0.039
R271
R246 R270
15K
0 39K
42 41 40 39 38
1 2 4
3 5
C404
R409
100K 16V10
R414
R412
2.2K 330K
D405
MA728TX
<6.13V>
((6.17V))
C406
R461
Q401
50V1
33K
<1.57V>
<0.95V>
R417
((1.58V))
((0.96V))
100K
R415
100
C408
R416
Q201,Q401
16V10
1K
R214
R212
2.2K
330K
D205
MA728TX
<6.19V>
C206
((6.24V))
R261
Q201
50V1
33K
<1.55V>
R217
<0.92V>
((1.56V))
100K
((0.94V))
R215
100
R216
C208
R316 1K
<9.95V> 16V10
10K
((9.97V))
Q302
<9.95V>
<0.01V>
((9.96V))
R317
((0.01V))
1K
<9.94V>
KTA12710YTA
((9.94V))
CD MOTOR SUPPLY SWITCH
Q301
<0.01V> KRC102STA
((0.01V))
PLUNGER MOTOR
SUPPLY CONTROL SWITCH
TO
PANEL CIRCUIT
(CP601) ON
SCHEMATIC DIAGRAM-9
17 16 15 14 13 12 11 10
IC300
C1BB00000654
AUDIO SOUND PROCESSOR
37 36 35 31
34 33 32 30
IC300
8 13
6 7 9 10 11 12
R446
0
R419
1.5K
R411
C441
100
0.039
R470
39K
C405
50V1
R413
82K
R211
100
B1AAKD000009
C205
50V1
R213
82K
Q302
Q301
CN303
9 8 7 6 5 4 3 2 1
C221
50V2.2
26 23 22
29 28 27 25 24
16 17 21
14 15 18 19 20
C421
50V2.2
R420
C309
3.9K
10V220
<4.9V>
<5.6V>
((5V))
((5.6V))
Q320
R342
<8.7V>
390
((8.6V))
C336
R341 0.01
390
D311
UDZSTE175R1B
Q320
VOLTAGE REGULATOR