JVC UX-M3R Schematic
Block diagram
UX-M3R
Main board
FM
IC101
AM
5
R/R HEAD
CON21
CN101
CN201CN702CN704
L101,L102
TC102
IC201
HEAD
SW
IC202
TAPE
SECTION
4
TUNER
SECTION
IC102
PLL
TAPE REC
TAPE PB
CN102 CN302
CN601 CN603
TUNER
IC301
SOURCE
SELECT
CD
CN301
CN602
IC401
POWER
AMPLIFIER
IC402
EAR PHONE
AMPLIFIER
CN401
CN402
12V 30V
CN303
Speaker
Ear phone board
Ear phone jack
JK401
CN403
CD & MCU section
Back LED board
CASSETTE
MECHANISM
CN604
IC602
RDS
3
LCD61
LCD DISPLAY
BACK LED
Key board
IC702
CD DOOR
DRIVE
CD
2
MECHANISM
&
CD PICK UP
IC704
CD RF
AMPLIFIER
IC601
MCU
IC701
CD DSP
CN607CN608 CN605
CN802CN801
REMOTE
SENSOR
MODE LED
OPERATION
SWITCH
Power board
IC703
CN703
CD SERVO
1
SB +6V
PW SW
CD +9V
CN609CN701
CN902 CN901CN903
TR901
TR902
TRANSFORMER
AB CD E F G
2-1
Standard schematic diagrams
Main section
5
Voltage charts
PIN1
PIN2
PIN3
4
To A-3
on page 2-3
PIN4
PIN5
IC201 : UPC1330
PIN1 5
PIN6
PIN7 9
0 V
0.78 V
0 V
2.8 V
3.06 V
0 V
7.30 V
0 V
3
PIN6
PIN7
PIN8
PIN9
PIN10
PIN1 4
PIN5
PIN6
PIN7
PIN8
PIN9
IC101 : TA2104
2.63 V
PIN11,12
3.16 V
PIN13
0 V
PIN14
0.5 V
PIN15
2.38 V
PIN16
IC202 : AN7312
0 V
PIN10
1.35 V
PIN11
1.27 V
PIN12
0 V
PIN13
0 V
PIN14
1.23 V
1.2 V
2.5 V
2.35 V
0.7 V
1.2 V
1.35 V
3.4 V
0 V
6.87 V
6.92 V
PIN17
PIN18
PIN19
PIN20 24
0.7 V
0 V
2.87 V
3.01 V
Voltage charts
IC301 : TC9422F
PIN1
PIN2
PIN3
PIN4
PIN5
PIN6 12
PIN13 15
7.89 V
0 V
3.9 V
2.24 V
0 V
3.9 V
0 V
PIN16 19
PIN20
PIN21
PIN22,23
PIN24
PIN25,26
PIN27,28
3.97 V
3.9 V
0 V
3.9 V
0 V
3.9 V
0 V
UX-M3R
Voltage charts
Q301
2SC945P
E
0.67V
1.21V
B
3.01V
C
Q302
2SC945P
0.67V
1.21V
3.01V
Q303
2SC1383R
8.53V
9.18V
11.53V
UX-M3R
To A-4
on page 2-3
Voltage charts
Q113
2SC945P
E
0V
0.51V
B
0V
C
Q117
2SA733P
4.56V
E
5.77V
B
C
6.51V
Q120
2SC945P
2.27V
E
2.89V
B
3.93V
C
Q123
2SC945P
0.62V
E
1.09V
B
4.23V
C
Voltage charts
IC102 : TC9257
PIN1
2.61 V
2.61 V
PIN2
5.26 V
PIN3
5.26 V
PIN4
0.5 V
PIN5
0 V
PIN6
4.25 V
PIN7
0.3 V
PIN8
0 V
PIN9
0 V
PIN10
IC401 : LA4282
PIN1
1.0 V
0.7 V
PIN2
16.7 V
PIN3
0 V
PIN4
0.7 V
PIN5
1.09 V
PIN6
Q114
2SC945P
0V
0V
3.2V
Q118
2SC945P
0V
0.69V
0V
Q121
2SC945P
0.63V
1.1V
2.06V
Q124
2SC945P
0V
0.62V
4.23V
PIN11
PIN12
PIN13
PIN14
PIN15
PIN16
PIN17
PIN18
PIN19
PIN20
PIN7
PIN8
PIN9
PIN10
PIN11
PIN12
Q115
2SC945P
0V
0V
1.33V
Q119
9018G
0V
0.73V
3.09V
Q122
2SC945P
0V
0.63V
2.06V
0 V
5.3 V
0 V
2.5 V
0 V
2.5 V
5.15 V
0 V
1.0 V
1.0 V
16.02 V
0 V
33 V
16.3 V
0 V
Voltage charts
Q304
Q305
2SC945P
0V
0.75V
0V
Q402
8050D
0V
0V
0V
Q405
8050D
0V
0V
0V
Q410
2SC945P
0V
0V
33.4V
2SB1240Q
2SA733P
2SA733P
E
B
C
E
B
C
2
(To A-3 on page 2-3)
1
Voltage charts
Q201
8050D
E
2.1V
2.7V
B
2.1V
C
Q202
2SC945P
0V
0V
0.2V
Q203
2SC945P
0V
0.65V
0V
Q204
2SC945P
0V
0.65V
0V
Q205
2SC945P
0V
0.65V
0V
Q206
8050D
2.1V
2.7V
2.1V
Q207
2SC945P
0V
0V
0.2V
Q208
2SC945P
0V
0.65V
0V
Q209
2SC945P
0V
0.65V
0V
Q211
2SA733P
8.54V
7.66V
8.11V
Q212
2SC945P
0V
0.65V
0V
Q213
2SC945P
0V
0.65V
0V
Q214
2SC945P
0V
0V
4.59V
AM SIGNAL
FM/RADIO SIGNAL
TAPE PB SIGNAL
TAPE REC SIGNAL
MAIN SIGNAL
HEAD PHONE SIGNAL
CD SIGNALRADIO SIGNAL
(To G-1 on page 2-4)
Parts are safety assurance parts.
When replacing those parts, make
sure to use the specified one.
E
B
C
E
B
C
14.89V
14.1V
14.82V
Q403
11.97V
0V
11.85V
Q406
8050D
27.1V
27.9V
33.6V
Q411
34.1V
33.7V
0V
Q401
8050D
0V
0V
0V
Q404
8050D
0V
0V
0V
Q409
2SC945P
0V
0V
11.92V
2-2
HAB C DE FG
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