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MAIN III SCHEMATIC DIAGRAM
TP4508 PT
L_IN
TP4509
PT
R_IN
C4306
10/16V
R4373
100
C4371
10/16V
C4304
J4371
10/16V
WA10
16
15
14
13
12
11
10
9
VDD
C4308
10/16V
SW
CONTROL
GND
IC4301
1
2
3
4
5
6
7
8
C0JBAR000344
(SW)
C4372
10/16V
C4305
C4303
10/16V
10/16V
C4307
10/16V
R4308
PT
Q4356
2SD1819A0L
Q4302
SWITCHING
Q4301
PT
AUDIO MUTE-ON
PT
R4307
0
R4309
R4310
10K
10K
Q4304
UNR221200L
(INVERTER)
Q4303
UNR221200L
(INVERTER)
NOTE:
U4501
IC4501
LXPUSO1275
C1BA00000367
(AUDIO AMP)
GND
STBY
VCC
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
J4501
WA12.5
R4503
10K
C4503
1200P[KB]
R4502
R4506
AMP_R_OUT
AMP_L_OUT
WA7.5
1K
4700
TP4502
TP4501
TP4507
WA7.5
WA10
Q4351
2SD601A0L
(BIAS)
R4374
L4351
100
100U
R4354
100K
C4358
10/16V[N]
R4605
R4607
5600
5600
R4368
C4627
820
C4628
R4606
R4608
390K
390K
24
23
22
21
20
19
18
17
16
15
14
13
IC4601
C1BB00000815
(TONE CONTROL)
1
2
3
4
5
6
7
8
9
10
11
12
C4609
C4606
PT
PT
C4624
C4623
1/50V
1/50V
C4617
C4629
C4616
D4354
0.01
PT
MA2C165001VT
1000/16V
NOTE:
PARTS MARKED "PT" ARE NOT USED.
FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES,
REFER TO BEGINNING OF SCHEMATIC SECTION.
JK4591
HEADPHONE JACK
U7001
J3AAABB00002
D4593
MA2C165001VT
D4594
MA2C165001VT
1
2
3
J4593
WA5
D4588
D4591
MAZ42400MF
MAZ42400MF
(24V)
(24V)
L7001
10U
D4587
D4592
C7040
D7001
MAZ42400MF
MAZ42400MF
56P[JC]
PT
(24V)
(24V)
8
7
6
5
IC4351
C0ABBB000256
(OP AMP)
1
2
3
4
C9022
R9007
1K
2R2/50V
TP9001
PT
R9006
C9021
1K
2R2/50V
Q4353
PT
2SD132800L
SWITCHING
TP9002
AUDIO MUTE-ON
Q4352
2SD132800L
SWITCHING
R4367
R4366
2700
AUDIO MUTE-ON
2700
R4365
J4302 WA5
100K
Q4354
PT
C4360
Q4355
10/16V[N]
UNR511500L
MUTE
DRIVE
(FM SIGNAL PROCESS)
R4355
R4360
100K
100K
TP4202
TP4201
WA10
WA10
56P
56P
C4619
0.33[KB]
L9501
PT
8
V+
Q9501
PT
(BIAS)
L4601
100U
D4601
1
B0AAML000001
J1201
PT
35
PV-20DF25 / PV-27DF25 / PV-27DF5 / PV-20DF25-K / PV-27DF25-K
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.
VIDEO SIGNAL
AUDIO SIGNAL
(UHF/VHF TUNER UNIT)
4
5
6
7
8
9
10
11
12
13
14
15
16
17
D7002
C7013
PT
PT
C7006
PT
R7033
PT
J7032
C7007
PT
WA5
C7008
10P
Q7031
PT
PT
C7009
R7021
C7022
PT
PT
Q7021
D7003
PT
PT
J7031
D7004
0
R7022
R7023
PT
PT
PT
R9003
100
R9002
100
C9026
C9027
56P
56P
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
NC
NC
GND
Vcc
SIF
OFFSET
PILOT
AGC
IIC
CANCEL
PLL
DEMOD
DET
DECORDER
L+R
OFFSET
75us
STEREO
L+R
PILOT
L-R
MATRIX
INPUT
CANCEL
DE-EMPH
VCA
FILTER
FILTER
CANCEL
FILTER
& MODE SW
L-R/SAP
SIF/BB
WIDEBAND
SPECTRAL
dbx
SW
OFFSET
EXPAND
EXPAND
DE-EMPH
NOISE
CANCEL
FILTER
SPECTRAL
SPECTRAL
L-R/SAP
SAP OUT
SAP
SAP
SW
FILTER
RMS DET
FILTER
DEMOD
FILTER
WIDEBAND
WIDEBAND
NOISE
SAP
RMS DET
FILTER
DET
MUTE
SIF/BB
DET
IIC/PARA
AGC SW
MODE
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IC9001
AN5832SA-E1V
L9001
100U
D9501
MA2C165001VT
TP9554
D9502
R9509
WA10
MA2C165001VT
220
R9510
TP9553
J9503
220
WA7.5
WA5
J9502
L4504
PT
0
J9501
C9502
PT
PT
D9503
MA2C165001VT
R9504
7
6
5
PT
D9504
MA2C165001VT
TP4004
IC9501
R9502
WA7.5
PT
1K
(OP AMP)
TP4001
R9503
WA10
1K
V-
R9505
2
3
4
PT
C9503
C9501
C9504
100P[JC]
100P[JC]
D9507
MA2C165001VT
PT
J9504
WA5
TP9501
D9508
WA10
MA2C165001VT
D9506
MAZ40510MF
(5.1V)
D9505
MAZ40510MF
(5.1V)
MAIN III SCHEMATIC DIAGRAM
PV-20DF25/PV-20DF25-K/PV-27DF25/PV-27DF25-K/PV-27DF5
COMPARISON CHART
OF MODELS & MARKS
MARK
MODEL
PV-20DF25
A
PV-20DF25-K
B
PV-27DF25
C
PV-27DF25-K
D
PV-27DF5
E
Not Used
PT
TNR_VIDEO
39
TO M II
SW+30V
48
TO M V
R_TNR_AFC
31
TO M I
SW+5V_VIDEO
8
TO M V
JK9501
AUDIO
OUT R-CH
AUDIO
OUT L-CH
JK9502
AUDIO
IN R-CH
AUDIO
IN L-CH
VIDEO
IN
REAR_VIDEO
38
TO M II
LINK TO VOLTAGE CHART
LSJB2220
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