Sharp FV-DB1E (serv.man3) Service Manual ▷ View online
FV-DB1E
4 – 2
4
10 24
3
1
2
24
7
2
2
3
1
49
56
54
53
5
11
23
8
4
21
7
6
6
11
12
2
17
14
12
13
13
1
9V
9V
1
9V
03
VOL_CE
VDD2
VDD1
STB
STB
DATA
VSS
7
LCD1
DAB POWER
401
21SJ
TEM
OMPUTER
IC101
LC75341M
AUDIO
PROCESSOR
FM_L
L_OUT
R_OUT
FM_R
DAB_L
DAB_R
DAB_R
VSS
CLK DI CE
VDD
L_SELD
R_SELD
Q101
Q103
Q102
Q104
MUTING
JK101
ANALOG LINE
OUTPUT
IC102
TA8227P
POWER
AMP.
VDD
MEMORY
BATTERY
3.3V
3.3V
D401
D403
D405
D404
IC403
IC702
BA033T
VOLTAGE
REGULATOR
BA05CC0T
VOLTAGE
REGULATOR
9V
Q404
Q701
DAB
3.3V
2
3
1
IC701
DAB
5V
SW701
ON/STAND-BY
AC ADAPTOR
JK102
HEADPHONES
MAIN
BATTERY
ROUT
LOUT
05P
AGE
ATOR
SI3033LUS
3.3 V
REGULATOR
Q401~
Q403
LED401~
LED403
LED DRIVER
D703
JK701
DC INPUT
SP601
SP602
Figure 4-2 BLOCK DIAGRAM (2/2)
FV-DB1E
5 – 1
Audio
FV-DB1E
Service Manual
FV-DB1E
Market
E
CHAPTER 5.
CIRCUIT DESCRIPTION
[1] Notes on schematic diagram
• Resistor:
To differentiate the units of resistors, such symbol as K and M are
used: the symbol K means 1000 ohm and the symbol M means
1000 kohm and the resistor without any symbol is ohm-type resis-
tor. Besides, the one with “Fusible” is a fuse type.
used: the symbol K means 1000 ohm and the symbol M means
1000 kohm and the resistor without any symbol is ohm-type resis-
tor. Besides, the one with “Fusible” is a fuse type.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this symbol P
means pico-farad and the unit of the capacitor without such a sym-
bol is microfarad. As to electrolytic capacitor, the expression
“capacitance/withstand voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
means pico-farad and the unit of the capacitor without such a sym-
bol is microfarad. As to electrolytic capacitor, the expression
“capacitance/withstand voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
• Schematic diagram and Wiring Side of P.W.Board for this model are
subject to change for improvement without prior notice.
• The indicated voltage in each section is the one measured by Digi-
tal Multimeter between such a section and the chassis with no sig-
nal given.
nal given.
1. In the tuner section,
indicates AM
indicates FM stereo
indicates AM
indicates FM stereo
• Parts marked with “
“ (
) are important for main-
taining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the
set.
specified ones for maintaining the safety and performance of the
set.
[2] Types of transistor and LED
REF NO.
DESCRIPTION
POSITION
SW401
BAND
ON-OFF
SW402
INFO
ON-OFF
SW403
AUTO TUNE
ON-OFF
SW404
PRESET SELECT
ON-OFF
SW405
PRESET 5
ON-OFF
SW406
PRESET 4
ON-OFF
SW407
PRESET 3
ON-OFF
SW408
PRESET 2
ON-OFF
SW409
PRESET 1
ON-OFF
SW410
ENTER
ON-OFF
SW411
SOUND
ON-OFF
SW413
TUNING UP
ON-OFF
SW414
VOLUME UP
ON-OFF
SW415
VOLUME DOWN
ON-OFF
SW416
TUNING DOWN
ON-OFF
SW417
CLOCK
ON-OFF
SW418
MENU
ON-OFF
SW701
ON/STAND-BY
ON-OFF
REF NO.
DESCRIPTION
POSITION
2SC5477
KTC3875 GR
B
(3)
E
(1)
C
(2)
TOP
VIEW
2SC562 C
KRC107 M
KTA1266 GR
KTC3199 GR
VIEW
FRONT
E C B
(S)(G)(D)
(1)(2)(3)
LP3052AU
LPBB73VQ
FRONT
VIEW
FV-DB1E
5 – 2
[3] Voltage
PIN
NO. VOLTAGE
IC401
1
2
4
5
6
7
5
6
7
8
9
9
10
11
11
12
13
14
14
15
16
17
18
19
20
21
22
21
22
23
24
25
26
27
28
28
29
30
31
32
3
3.22 V
3.22 V
0.05 V
3.13 V
2.06 V
1.19 V
0 V
1.87 V
1.45 V
0 V
2.48 V
3.25 V
3.5 V
0 V
0 V
0 V
3.1 V
0 V
0 V
0 V
2.88 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
0 V
PIN
NO. VOLTAGE
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
0 V
0 V
0 V
0 V
3.22 V
0 V
0 V
0 V
0 V
0 V
3.1 V
0 V
0 V
0 V
0 V
0 V
0 V
3.25 V
0 V
0 V
0 V
0 V
0 V
3.12 V
0 V
0 V
0 V
0 V
0 V
0 V
3.22 V
3.22 V
PIN
NO. VOLTAGE
IC301
1
2
4
5
6
7
5
6
7
8
9
9
10
11
11
12
13
14
14
15
16
17
18
19
20
21
22
21
22
23
24
25
26
27
28
28
29
30
31
32
33
34
35
36
3
0.3 V
2.25 V
2.36 V
0 V
4.25 V
4.87 V
2.23 V
2.25 V
3.86 V
3.73 V
2.71 V
2.2 V
2.2 V
0 V
0 V
0 V
3.1 V
3.25 V
1.55 V
1.65 V
3.4 V
2.24 V
2.3 V
0 V
0.9 V
2.01 V
2.01 V
1.53 V
0 V
2.6 V
3.6 V
4.7 V
4.78 V
4.76 V
0 V
0.9 V
PIN
NO. VOLTAGE
IC102
1
2
4
5
6
7
5
6
7
8
9
9
10
11
11
12
13
14
14
3
9.38 V
4.87 V
9.05 V
0 V
0 V
0.6 V
0 V
0 V
0.6 V
5.2 V
0 V
9.1 V
4.9 V
10.2 V
PIN
NO. VOLTAGE
IC101
1
2
4
5
6
7
5
6
7
8
9
9
10
11
11
12
13
14
14
15
16
17
18
19
20
21
22
21
22
23
24
3
0 V
0 V
0 V
4.53 V
4.51 V
4.51 V
4.5 V
4.53 V
4.51 V
4.51 V
4.53 V
4.53 V
4.53 V
4.53 V
4.53 V
4.53 V
4.55 V
4.53 V
4.53 V
4.54 V
4.55 V
4.55 V
9.1 V
3.1 V
FV-DB1E
6 – 1
Audio
FV-DB1E
Service Manual
FV-DB1E
Market
E
CHAPTER 6.
CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] Schematic diagram
Figure 6-1 SCHEMATIC DIAGRAM (1/2)
3.9V
1K
0.0033
PST9127
RESET
2
1
3.9K
1K
39K
39K
10K
10K
0
0.01
0.001
B.P.F
0.001
100P
(CH)
22K
0.47 µH
2.2 µH
LP3052AU
DS1SS133
0.001
LV23002M
FM
FRONT
END/PLL
(TUNER)/
FM
DET./FM
M
PX./AM
IF
0.01
10K
10K 0.01
0
0.001
0.47/50
22K
0
0.047
B.P.F
R327 220
0.01
1SS133
1SS133
0.001
1SS133
1SS133
100/6.3
100/6.3
LPBB73VQ
270P
0.47µH
1K
1K
DZ3.3BSB
100
1N
LC75341M
AUDIO
PROCESSOR
1K
IXA021SJ
SYSTEM
MICROCOMPUTER
10K
1/50
0.1
22/50
390
1K
47K
0.1
3.3K
4.7/50
0.001
22/50
0.033
10K
10K
33
2.2K
2SC5477
680
47 µH
1/50
47/50
1/50
1K
0.1
0.01
100P
100P
100P
0.1
22/50
100K
4.7K
0.01
1K
4.7K
0.33/50
100P(CH)
5P(UJ)
33P(CH)
C312 0.015
33P(CH)
R308 1K
330
5P
0.001
SVC201
0.01
100K
10P(CH)
2.2K
0.047
100
10 µH
10
0
0
SVC201
100K
0.01
OSC.
100K
2SC5477
0.001
10P(UJ)
0.01
10
330
10P(CH)
MTZJ3.6B
22/50
22/16
1K
1/50
0.01
1K
LPBB73VQ
1K
1K
1K
1K
10K
1K
220
10K
KTC3875 GR
1K
10K
1K
KTC3875 GR
12
10K
KTC3875
GR
1K
0.22
47/10
GP352TZ
0.1
100/10
0.22
0.022
1K
1K
DS1SS133
0.22
0.22
0.22
0.22
1K
1K
1K
1K
1K
1K
470
1K
0
022
SI3033LUS
3.3 V REGULA
DS1SS133
1K
1K
1K
1K
1K
11
12
13
14
2 3
1
270P
DZ3.3BSB
22K
DS1SS133
0.22
0.22
PST9119
RESET
2
1
3
560
4.7K
2.7K
270P
1
0.022
3
8M
H
z
22P(CH)
0
9
10
11
12
13
14
15
16
17
18
19
20
21
22
35
34
33
32
31
30
41
40
39
44
43
42
38
37
36
29
28
27
26
25
24
23
8
7
6
5
4
3
2
1
0
1
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49
49
50
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
3
4
2
100
100
0.022
1 2 3 4 5 6 7 8 9
10 11 1213 14 15 16 17 18
27 26 2524 23 22 21
34 33
36 35
3231 30 29 28
20 19
9V
LCD STB
FM
ROD
ANTENNA
CLK
5V
FM
DAB
FM_L-CH
FM_R-CH
PLL_CE
DO
GND
DI
GND
DAB
DAB
SCP_CLK
DAB
P
OWER
FM
DAB
VSS0
VDD0
DO
MUTE
P_SUPPLY
CLK
DI
AV_REF
RESET
XT2
C
L
DI
CE
TX
RX
VDDI
AVSS
DIMMER_1
AD0
PWR_DET
XT1
IC(VPP)
X2
X1
VSS1
STB
SCK
DATA
BUZ
PON_DET
DIMMER_2
AD1
AD2
AD3
AD4
AD5
TIMER_LED
RESETB
DO
PLL_CE
VOL_CE
S1_DIN
S1_DOUT
S/PDIF
GND
3.3V
FM
R
F
M
L
DAB_L
DAB_R
2
1
3
2
1
5
4
3
3
2
1
2
1
3
2
1
3
KR
7
6
5
4
3
2
1
7
6
5
4
3
2
1
7
6
5
4
3
2
1
2
1
3
2
1
2
1
2
1
2
1
2
1
2
1
VUO
+3.3V
VSS
VREF
STB
SCK
DATA
6
4
3
1
5
7
2
6
4
3
1
5
7
2
5V
5V
AAUD_L
AAUD_GND
AAUD_R
GND
3.3V
3.3V
GND
AUD_SFR
AUD_SDDUTO
GND
S/PDIF DUT
GND
GND
S1_DIN
S1_DDUT
3.3V
USB_DP
USB_DM
GND
GND
LCD_DATA6
LCD_DATA5
LCD_DATA4
LCD_DATA3
LCD_DATA2
AUD_SCLK
AUD_MCLK
LCD_DATA7
RDI_OUT
SCP_CLK
LCD_DATA1
LCD_DATA0
LCD_F
LCD_LRS
LCD_M
LCD_PE
S/PDIF IN
SCP_DAT
PDM_OUT
AUD_SDDUT1
AUD_SDDUT2
AUD_SDIN
6
4
3
1
5
7
2
SCK3
SO3
SI3
VPP
GND
VDD
RESET
6
8
9
9
10
11
11
7
2
1
5
4
3
6
8
9
9
10
11
11
7
2
1
5
4
3
6
8
9
9
10
11
7
2
1
9V
GND
CLK
DI
DO
PLL_CE
FM_R-CH
FM_L-CH
FM_R-CH
FM_L-CH
DAB
FM
FM
5V
DO
CLK
VOL_CE
BUZ
MUTE
GND
DAB_L-CH
DAB_R-CH
GND2
FM
IFIN
VSS
CE
R-OUT
DI
CL
D0
XIN
XOUT
VDD
MPX-IN
DET-OUT
AMLOWOUT
AGC
PD
LP-IN
LP-OUT
B01
B02
AM-OSC
FM-OSC
VCC2
FMRF-OUT
FMRF-IN
AM
IFIN
VCC1
AM-MIX
GND1
FM-MIX
AMRF-IN
REG
L-OUT
FM
DET
P-CCMP
P-DET
1K
DISPLAY PWB-A2
DAB UNIT
TUNER PWB-A3
MAIN
PWB-A1 (2/2)
PWB-A1 (2/2)
FM RF
(CH)
(CH)
(CH)
3
1
1
3
2
2
C403: 18P(CH)
XL401:
32.768
kHz
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1.
CNW303
BF301
D302
D303
C349
C348
D309
D308
C350
C303
C302
CNP302
CNW305
BF304
CF301
C356
CF303
R331
R332
Q303
R333
C315
C322
R312
C323
C340
C331
C327
C336
C337
C319
C313
CF302
C355
IC301
IC301
R338 C352
R323
R321
R320
C334
C339
C351
R337
L308
C328
R318
R317
C324
C347
R336
L303
R302
R334
R306
L304
R310
C318
R305
C306
Q302
R328
C307
JP302
JP303
R307
L307
C314
C309
D306
C345
C344
D307
C316
C317
C346
R329
C343
C321
ZD308
C342
C341
X301
R319
C335
C333
C320
R313
R314
R316
C329
C325
C332
C326
C330
R315
R311
C357
CNW101
CNP101
CNS101
R154
R151
R150
R153
R152
IC101
C135
C137
R101
R103
C138
C136
R102
JP102
CNW106
CNW411
CNS411
CNS106
L401
CNP402
TUN1
TX101
C162
L101
C131
C130
CNW406
R484
JP402
C416
C412
JP404
C420
C415
C410
R481
R482
C411
IC401
R469
R422
R421
R417
R420
R418
R419
R415
R416
C401
CNP408
R485
R413
R423
R424
R412
R410
R429
R432
C418
R455
R427
R426
IC404
IC404
XL402
C402
C403
R425
XL401
R475
JP401
C417
R479
C407
C413
C419
C406
DZ401
R428
R478
C414
C431
R477
IC402
D401
CNP403
LCD1
D406
DZ403
R480
R474
R483
LED403
LED402
Q402
R438
R437
R435
R436
Q401
R433
R434
LED401
R441
Q403
R439
R440
R411
R442
R444
R443
IC403
IC403
D4
C408
D405
C409
D403
L402
C421
CNP406
CNS406
A
B
C
D
E
F
G
H
1
2
3
4
5
6
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