Panasonic PV-20DF62 Service Manual page 134

AUDIO SCHEMATIC DIAGRAM
IC9001
CXA2064M
MTS/SAP AUDIO
SIGNAL PROCESS
C9001 C9018 R9009
R9001 4.7/25V 2700P 3300
1 30
10KB
C9017
SEPARATION(L)
0.047
2 29
C9002
4.7/25V
3 28
L9001
C9016
100U
4.7/25V
4 27
VCC
R9002
C9020 C9019 C9015
MTS/SAP
68K 3.3/50V
22/16V 0.01
5 SIGNAL 26
TP9003
PROCESS
R9003 PT
10KB 6 GND 25
C9003 C9014
SEPARATION
4.7/25V 4.7/25V
7 24
R9004 C9004 R9021
33K
2200 4.7/25V
8 23
C9005 R9019
10/16V 33K
9 22
C9006 C9011
1/50V 10/16V
10 21
C9010 R9007
1/50V 3900
11 20
LED R9012
DRIVE 1K
12 19
R9011
R9006 100K
Q9001 1K
13 MODE 18
2SD601A SELECTOR
C9008 C9007 R9005 R9010
SWITCHING
0.012 5600P 1M 1K
14 17
AUDIO
DEFEAT ON Q9002
15 16
2SD601A
R9018 SWITCHING
R9017 D9001
1K AUDIO C9009
820 MA165
4.7/25V
DEFEAT ON
IC9201 AN7420-NT (FM SIGNAL PROCESS)
FLIP FLOP FLIP FLOP
STEREO
19KHz 19KHz
DETECTOR
90 0 MONO/STEREO
SELECTOR
PHASE
FLIP FLOP
DETECTOR
38KHz STEREO SIGNAL
STEREO
DEMODULATOR
LED DRIVE
AMP DC AMP VCO
L-CH
VCC GND
R-CH
1 2 3 4 5 6 7 8 9
R9208 C9203 R9210 C9210
10/16V 1/50V
3900 0
R9209
R9207 C9209 R9212
2700
3300 0.022 PT
R9211 C9211
1/50V
0
R9205 C9208 R9213
3300 0.022 PT
L9201
100U
C9202 C9201
TP9201
47/6.3V 0.01
29 28 27 26 25 24 23 22 21 45 44 43 42 41 40 39 38
R9008
5KB
SEPARATION(H)
C9021 C9022
22/16V 0.01
Q9003
2SD601A
(BUFFER)
TP9002
PT
C9013
10/16V
Q9004
2SD601A
R9020 R9022 R9023 (BUFFER)
33K 33K 1K TP9001
PT
R9024 C9012
1K 10/16V
C4302 C4301 C4307 C4305
0.01 100/16V 10/16V 0.01
C4304 R4316
R4317
10/16V 18K
10K
R4312 R4313
33K 18K
16 15 14 13 12 11 10 9 8 7 6 5
VCC
VDD
IC4301 IC4302 IC4303
BU4052BCF UPC4570G BU4052BCF
INPUT
INPUT (OP AMP)
SELECT
SELECT
- +
GND VEE GND VEE
1 2 3 4 5 6 7 8 1 2 3 4
C4303
R4310
10/16V 33K R4314 R4315
18K 10K
R4302
R4308
100K C4306
18K
10/16V
37 36 35 34 33 32 31 30
NOTE:
PARTS ENCLOSED IN DASHED LINES MARKED "PT" ARE NOT USED.
R4604 R4606
4700 4700
22 21 20 19 18 17 16 15
VOLUME
CONTROL
AGC
VOLUME TONE
IC4601
CONTROL CONTROL
BD3867S
TONE VOLUME TONE
CONTROL CONTROL CONTROL
AGC
VOLUME
CONTROL
V-REF GND
1 2 3 4 5 6 7 8
R4603 R4605
4700 4700
R4318
100K
C4308
0.01
J4354
16 15 14 13 12 11 10 9 8 7 6
VCC
VDD
IC4371
PT
(OP AMP)
- +
GND VEE GND
1 2 3 4 5 6 7 8 1 2 3
R4320
100K
R4319 R4321 R4322 R4323
10K 10K 10K 10K
Q4304
UN2212
(INVERTER)
Q4303
UN2212
(INVERTER)
Q4302
UN2212
(INVERTER)
Q4301
UN2212
(INVERTER)
J4201
WA5
20 19 18 17 16 15 14 13
NOTE:
L4601
100U
C4623 C4616
470/16V 0.1
14 13 12
I2C
LOGIC
9 10 11
R4608 100
R4607 100
J4604 PT
J4602 PT
R4360
100K
J4352
0 R4353 PT
4700
Q4352
2SD601A
5 8 7 6 5
+6V
VCC
REGULATOR
IC4352 IC4351
UPC4570G BU4053BCF
(OP AMP)
(SW)
- +
VEE VEE
4 1 2 3 4
J4355
0
J4353
C4356 C4357 R4359
PT
10/16V 10/16V 100K
R4356 R4357
100 100
R4355 R4358
47K 47K
D4353 MA165
D4354 MA165
12 11 10 9 8 7 6 5
FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES,
REFER TO BEGINNING OF SCHEMATIC SECTION.
NOTE: For placing a purchase order of the parts,
be sure to use the part number listed in the parts list.
Do not use the part number on this diagram.
AUDIO SIGNAL
TP4201
TP4202
R4363 R4364
PT 100K
R4367 C4362
R4368
10K
10/16V
100K
R4369 J4351
100 0
16 15 14 13 12 11 10 9
H
VDD Q4353
UN2212
L
SWITCHING
SW
DVD-ON
CONTROL
H L
H L MUTE GND
1 2 3 4 5 6 7 8
R4366
10K
R4361 R4362
PT 100K
Q4354
UN211L-TX
AUDIO
R4365 Q4355
C4361
MUTE-ON
10K UN221L-TX
10/16V
AUDIO
MUTE-ON
R4371 100
R4370
100K
4 3 2 1
LINK TO VOLTAGE CHART
LSJB2029
AUDIO SCHEMATIC DIAGRAM
PV-20DF62/PV-27DF62/PV-27DF62-K