Text preview for : 21067sch.pdf part of JVC FS-M3 COMPACT COMPONENT SYSTEM FS-M3 Service Manual, Instructions, Parts List and Schematics
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FS-M3
Block diagram
Main board
CN101
AM
5
L101,L102 TC102 IC201 HEAD SW
IC101 TUNER SECTION
IC401 POWER AMPLIFIER
CN401
FM
Speaker
IC102 PLL IC202 TAPE SECTION TAPE REC TAPE PB
TUNER
CN403
H.P. jack board
PHONES jack JK401 IC402 EARPHONE AMPLIFIER 12V 30V CN301 CN303
CN402
R/R HEAD
CN201A CN201
IC301 SOURCE SELECT CD
4
CN102
CN302
CN601
CN603
CN602
CD & MCU board
CN604
CASSETTE MECHANISM
LCD61 LCD DISPLAY
CN605
Back light board
BACK LED
3
CN607
Key switch board
CN802
IC702 CD DOOR DRIVE
CN702
IC601 MCU
MODE LED OPERATION SWITCH REMOTE SENSOR
2
CD MECHANISM & CD PICK UP
CN704
IC704 CD RF AMPLIFIER
IC701 CD DSP
CN608
CN801
Power board
CN901 CN703 CN609 CN902
IC703 CD SERVO SB +V
TR902 TRANSFORMER
CN701
1
CD +V
A
B
C
D
E
F
CN903
G
2-1
FS-M3
FS-M3
Standard schematic diagrams
Main section
Voltage charts
Q113 Q114 Q115 2SC945P 2SC945P 2SC945P E B C
0V 0.51V 0V 0V 0V 3.2V 0V 0V 1.33V
5
Q117 Q118 2SA733P 2SC945P E B C
4.56V 5.77V 6.51V 0V 0.69V 0V
Q119 9018G
0V 0.73V 3.09V
Q121 Q122 Q123 2SC945P 2SC945P 2SC945P
BN
E B C
0.63V 1.1V 2.06V
0V 0.63V 2.06V
0.62V 1.09V 4.23V
Q124 2SC945P
Voltage charts IC101 : TA2104BN
E B C PIN6 PIN7 PIN8 PIN9 PIN10 PIN1 4 PIN5 PIN6 PIN7 PIN8 PIN9
2.63 V 3.16 V 0V 0.5 V 2.38 V
0V 0.62V 4.23V
4
PIN1 PIN2 PIN3 PIN4 PIN5 PIN1 5 PIN6 PIN7 9
0V 0.78 V 0V 2.8 V 3.06 V
PIN11,12 PIN13 PIN14 PIN15 PIN16 PIN10 PIN11 PIN12 PIN13 PIN14
1.2 V 2.5 V 2.35 V 0.7 V 1.2 V
PIN17 0.7 V 0V PIN18 2.87 V PIN19 PIN20 24 3.01 V
IC201 : UPC1330HA
0V 7.30 V 0V
IC202 : AN7312
0V 1.35 V 1.27 V 0V 0V 1.23 V 1.35 V 3.4 V 0V 6.87 V 6.92 V
Voltage charts IC301 : TC9422F
PIN1 PIN2 PIN3 PIN4 PIN5 PIN6 12 PIN13 15
7.89 V 0V 3.9 V 2.24 V 0V 3.9 V 0V
To CD&MCU board CN601
PIN16 19 PIN20 PIN21 PIN22,23 PIN24 PIN25,26 PIN27,28
3.97 V 3.9 V 0V 3.9 V 0V 3.9 V 0V
Voltage charts
Q301 Q302 Q303 2SC945P 2SC945P 2SC1383R E B C
0.67V 1.21V 3.01V 0.67V 1.21V 3.01V 8.53V 9.18V 11.53V
To A-4 on page 2-3
Voltage charts IC102 : TC9257F
PIN1 PIN2 PIN3 PIN4 PIN5 PIN6 PIN7 PIN8 PIN9 PIN10 PIN1 PIN2 PIN3 PIN4 PIN5 PIN6
2.61 V 2.61 V 5.26 V 5.26 V 0.5 V 0V 4.25 V 0.3 V 0V 0V
To A-3 on page 2-3
To CD&MCU board CN603
PIN11 PIN12 PIN13 PIN14 PIN15 PIN16 PIN17 PIN18 PIN19 PIN20 PIN7 PIN8 PIN9 PIN10 PIN11 PIN12
0V 5.3 V 0V 2.5 V 0V 2.5 V 5.15 V 0V 1.0 V 1.0 V
IC401 : LA4282
1.0 V 0.7 V 16.7 V 0V 0.7 V 1.09 V 16.02 V 0V 33 V 16.3 V 0V
3
A
HA
Voltage charts
N
Q304 Q305 2SC945P 2SB1240Q E B C
0V 0.75V 0V 14.89V 14.1V 14.82V
Q401 8050D
0V 0V 0V
N
Q402 8050D E B C
0V 0V 0V
Q403 2SA733P
11.97V 0V 11.85V
Q404 8050D
0V 0V 0V
2
Q405 8050D E B C
NJM7812A
Q406 8050D
27.1V 27.9V 33.6V
Q409 2SC945P
0V 0V 11.92V
0V 0V 0V
1
To CD&MCU board CN602
To Power board CN901
Voltage charts
Q201 8050D E B C
2.1V 2.7V 2.1V
(To A-3 on page 2-3)
(To F-1 on page 2-4)
Q202 Q203 Q204 Q205 2SC945P 2SC945P 2SC945P 2SC945P
0V 0V 0.2V 0V 0.65V 0V 0V 0.65V 0V 0V 0.65V 0V
Q206 8050D
2.1V 2.7V 2.1V
Q207 Q208 Q209 Q211 Q212 Q213 Q214 2SC945P 2SC945P 2SC945P 2SA733P 2SC945P 2SC945P 2SC945P
0V 0V 0.2V 0V 0.65V 0V 0V 0.65V 0V 8.54V 7.66V 8.11V 0V 0.65V 0V 0V 0.65V 0V 0V 0V 4.59V
AM SIGNAL FM/RADIO SIGNAL
TAPE PB SIGNAL TAPE REC SIGNAL
MAIN SIGNAL
HEAD PHONE SIGNAL
RADIO SIGNAL
CD SIGNAL
Parts are safety assurance parts. When replacing those parts, make sure to use the specified one.
A
B
C
2-2
D
E
F
G
H
FS-M3
CD & MCU section
(To A-1 and B-1 on page 2-4) (To C-5 on page 2-4)
To Key switch board
To Key switch board
CD & MCU board
Voltage charts
Voltage charts IC601 : 87EP26F-1J15
PIN1 PIN2 PIN3 PIN4 PIN5 PIN6 PIN7,8 PIN9 PIN10 PIN11 PIN12 PIN13 PIN14 16 PIN17,18 PIN19 PIN20 PIN21 PIN22 PIN23 PIN24 27 PIN28 PIN29 PIN30 PIN31 PIN32 36 PIN37,38 PIN39 PIN40 PIN41 PIN42 PIN43 PIN44
0V 2.4V 2V 4.6V 2.3V 2.81V 0V 1.8V 0V 4.77V 4.7V 3.59V 0V 5.28V 0V 5.28V 0V 4.7V 5.28V 0V 5.28V 0V 5V 0V 4.8V 0V 5.26V 5.28V 0V 1.1V 0V 4.43V
5
Q707 Q708 2SA733P 2SC945P
11.98V 11.98V 0V 0V 0V 0V
Q709 2SC945P
0V 0V 0V
87EP26F-1J15
(To G-3 and G-4 on page 2-2)
To Main board
Voltage charts IC702 : TA7291S
PIN1 PIN2 PIN3 5 PIN6
0V 12.07V 0V 12.06V
4
PIN7 PIN8 PIN9
0V 6.13V 0V
PIN45 PIN46,47 PIN48 PIN49 PIN50 PIN51 PIN52 54 PIN55,56 PIN57 60 PIN61 PIN62 PIN63 PIN64 PIN65 PIN66,67 PIN68 PIN69 PIN70 PIN71 PIN72 PIN73 PIN74 PIN75 PIN76 PIN77 PIN78 PIN79 81 PIN82,83 PIN84,85 PIN86 PIN87 PIN88
5.26V 5.27V 5.36V 5.35V 0V 1.3V 2.38V 2.36V 2.34V 2.33V 2.34V 2.4V 2.34V 2.31V 2.41V 2.45V 2.33V 2.34V 2.37V 2.38V 2.3V 2.38V 2.32V 2.31V 2.44V 2.45V 2.38V 2.4V 2.36V 2.41V 2.43V 2.3V
PIN89 PIN90 PIN91 PIN92 PIN93 PIN94 PIN95 97 PIN98 PIN99,100
2.32V 2.44V 2.47V 2.43V 2.48V 2.37V 0V 5.27V 4.78V
IC703 : TA2092
PIN1 PIN2 PIN3 PIN4 PIN5 PIN6 PIN7 PIN8 PIN9 PIN10 PIN11 PIN12
0V 3.42V 7.69V 3.72V 2.09V 2.05V 3.58V 2.03V 3.52V 7.69V 3.64V 0V
PIN13 PIN14 PIN15 PIN16 PIN17 PIN18 PIN19 PIN20 PIN21 PIN22 PIN23 PIN24
0V 3.7V 7.7V 3.43V 1.99V 0V 7.71V 2.14V 3.92V 7.7V 3.3V 0V
(To D-1 on page 2-2) (To A-3 on page 2-2)
3
To Main board
To Main board
(To E-1 on page 2-4)
To Power board
Voltage charts IC701 : TA9462F
PIN1 PIN2 PIN3 PIN4 PIN5 PIN6 PIN7 PIN8 11 PIN12 PIN13 PIN14 PIN15,16 PIN17 PIN18 PIN19 PIN20 PIN21 PIN22 PIN23 PIN24 PIN25 PIN26 PIN27 PIN28 34 PIN35 PIN36 PIN37,38 PIN39 PIN40,41 PIN42 PIN43 PIN44 PIN45 50
4.78V 4.86V 4.84V 0V 2.45V 0V 2.48V 0V 2.21V 1.27V 4.9V 0V 2.28V 0V 2.49V 0.48V 1.65V 0V 4.9V 0V 4V 2V 0V 2V 1.5V 0V 2V 4.9V 2V 2.5V 2V 2.2V 2V
2
To Cassette board
(To C-5 on page 2-4)
(To E-1 on page 2-4)
Voltage charts
Q601 Q602 Q603 Q604 Q605 2SC945P 2SB1240Q 2SC945P 2SB1240Q 2SC945P E B C
0V 0V 0.65V 0.2V 1.1V 0V 0V 0V 0.3V 11.99V 11.96V 0.24V 0V 0V 11.95V
To Back light board To Power board
Q606 8050D
7.33V 11.99V 8.4V
Q607 2SC1383R
4.94V 5.54V 9.76V
Q610 8050D
5.32V 5.97V 7.06V
CD SIGNAL
1
Q701 Q702 Q703 Q704 Q705 Q791 Q792 2SC945P 2SC945P 2SA733P 2SC1383R 2SA733P 2SB1240Q 2SC945P E B C
0V 1.1V 0V 0V 1.1V 0V 0V 0V 1.1V 4.60V 5.25V 8.19V 4.11V 3.39V 1.89V 8.25V 7.47V 8.09V 0V 0.71V 0.25V
Parts are safety assurance parts. When replacing those parts, make sure to use the specified one.
PIN51 PIN52 55 PIN56 PIN57 PIN58 61 PIN62 PIN63 PIN64 PIN65 67 PIN68 70 PIN71 74 PIN75,76 PIN77 PIN78 PIN79 PIN80 PIN81 PIN82 PIN83 PIN84 PIN85 PIN86 PIN87 89 PIN90,91 PIN92 PIN93 PIN94 PIN95 PIN96 PIN97 PIN98,99 PIN100
1.6V 2V 4V 2.4V 0V 5V 0V 0.7V 2.4V 4.8V 0V 4.9V 0V 2V 2.36V 4.8V 0V 2.6V 4.9V 2.49V 2.6V 0V 4.9V 4.7V 4.5V 4.6V 4.98V 0V 4.6V 4.15V 4.96V 4.94V
A
B
C
D
E
F
G
2-3
FS-M3 Key switch section
FS-M3 Power section
To CD&MCU board CN608
(To D-5 and E-5 on page 2-3)
To CD&MCU board CN605
(To B-1 on page 2-3)
5
4
3
2
1
To CD&MCU board CN607
(To D-5 on page 2-3)
Voltage charts
Q801 Q802 Q803 Q804 Q805 Q806 2SC945P 2SA733P 2SC945P 2SA733P 2SC945P 2SA733P E B C
0.74V 0.65V 2.51V 1.89V 1.22V 1.79V 1.99V 2.67V 2.09V 2.51V 3.66V 0V 2.51V 2.48V 1.89V 2.51V 3.65V 0V
(To A-2 on page 2-3) (To C-1 on page 2-3) (To F-1 on page 2-2)
Key switch board
Back light board
Parts are safety assurance parts. When replacing those parts, make sure to use the specified one.
A
B
C
2-4
D
E
F
G
H
FS-M3
Printed circuit boards
Main board
5
(Bottom view)
4
3
2
1
A
B
C
D
E
F
G
2-5
FS-M3
CD & MCU board
(Bottom view)
FS-M3
Key switch board
(Bottom view)
(Motor board) (Back light board) (H.P. jack board)
(PB/REC head board)
5
4
3
Power board
(Bottom view)
2
1
A
B
C
2-6
D
E
F
G
H