Sharp RT-XV300H (serv.man2) Service Manual ▷ View online
RT-XV300H
– 9 –
Figure 9 SCHEMATIC DIAGRAM (2/2)
7
8
9
10
11
12
0V
METAL: 5.2V
0V
0V
9.5V
1
11.8V
11.6V
0V
0V
0V
0V
0V
0V
D
0V
0V
R158
22K
R156
100K
0V
R157
22K
0V
0V
0V
10V
+B
0V
18V
12.7V
18V
VOLTAGE
REGULATOR
Q146
2SD2394 F
18V
11.8V
12.4V
C232 0.022
18V
0V
5V
3.8V
0.1V
0V
9.2V
9.9V
10V
0.6V
R216
22K
0V
0V
0V
5.9V
0V
11.6V
0.1V
0V
4.2V
0V
0V
DOLBY
SELECTOR
Q134
KRC102 S
0.1V
11.6V
0V
3
2
1
8.4V
0V
0.1V
9V
2.6V
0.1V
0.4V
0.4V
8.4V
8.6V
2.4V
1.1V
0.4V
4.6V
9V
4.5V
5V
5V
0V
2.3V
2.5V
0V
0.2V
0.1V
0.1V
0.1V
4.2V
0V
1.4V
1.4V
0V
5V
0V
5V
5V
0V
5V
0V
FW104
RECA
RECB
AS
LLS
AS
LLS
HLS
HLS
SS
SS
SW
MA
MA
SW
3
3
2
2
1
1
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
4
3
2
CNS107
1
5 4 3 2
CNS104
1
6 5 4 3 2
CNS105
1
CrO
2
RP
GND
RESET
PCNT IN
MOTOR
FWD
REV
REC
REV1
T-RDY
REV2
T-CLK
T-DATA
T-CMD
APSS
DOLBY B/C
REV3
MUTE
FWD
REV
1
SIDE A PLAY SW107
SIDE B PLAY SW106
R259
3.3K
R258
4.7K
R257
8.2K
R256
18K
SWITCH B PWB-A3
MAIN PWB-A1
+B
G
MUTE
Q116
2SJ103 GR
EMITTER AMP.
Q152
2SC2412 KR
R172
10K
EMITTER AMP.
Q151
2SC2412 KR
R252
560
R251
560
40
2K
+B
3
3
2
2
1
1
R127
3.3K
3
2
1
3
3
3
2
2
1
1
C141
1/50
R-CH P.B.
AMP.SENS.
+B
+B
DOLBY
SELECTOR
Q117
KRC104 S
DOLBY
SELECTOR
3
3
3
2
2
2
1
1
R-CH REC.
AMP. SENS.
AMP. SENS.
R150 3.3K
+B
L-CH REC.AMP.SENS.
C169
10/50
G
MUTE
Q115
2SJ103 GR
+B
VOLTAGE
REGULAYOR
IC106
NJM78M10FA
+B
+B
2
POWER
CONTROL
Q140
KRA102 M
+B
3
2 3
1
1
VOLTAGE
REGULATOR
IC104
M5278L05
+B
+B
+B
+B
POWER PWB-A5
+B
F101
T800mA
L 250V
D114~D117: RL104
C238
0.1
C237
0.1
4
1
3
2
1
POWER
CONTROL
Q157
KRC104 S
+B
POWER CONTROL Q156 KTA1266 GR
POWER
CONTROL
Q160
KRC102 S
APSS
CONTROL
Q138
KRC104 S
+B
MUTE
CONTROL
BIAS SELECTOR
CONTROL
SWITCH C PWB-A2
REVERSE /MODE
REWIND SW103
FAST
FORWARD
SW104
STOP SW105
5
R253
2.2K
R254
2.7K
R260
1.8K
LED105
SLR325MG
LED104 SLR325MG
R284 10K
FW105
6
1
R247
560
DOLBY
SELECTOR
Q133
KRC102 S
Q133
KRC102 S
3
2
1
R246
560
R249
560
R250
10K
Q132
KRC102 S
3
2
1
+B
+B
SOC101
MD-XV300H
MD-XV300H(BR)
FROM AMP. UNIT
T-P/R-CH
REC-R-CH
T-P/L-CH
REC-L-CH
R241 10K
R242 150K
R244
150K
R243 10K
FW107
D116
D114
D115
D117
C155
1/50
C171
10/50
C164
0.0022
(ML)
C168
0.1/50
C166
0.1/50
C172
10/50
IA
IA
C190
820P
R152
22K
C170
10/50
R-CH
L-CH
GND
GND
4
3
2
TP102
1
C226
10/50
C227
10/50
C228
1/50
D104
1SS119
C229
2200/25
C233
100/16
R171
10K
1
2
3
R273
10K
3
2
1
3
1
2
3
1
2
3
2
1
R268
1K
C216
0.022
9
8
7
6
5
4
3
2
1
BIAS
70uS
DOLBY_C
DOLBY_B
S
D
S
A-GND
D-GND
A-GND
A-GND
A-GND
T-RDY
T-CLK
T-DATA
T-CMD
PCNT IN
RESET
U GND
REC CNT
BIAS
PLS IN
TAPE
SOL
5V
XIN
GND
5V
GND
KEY1
MKEY1
MKEY2
XOUT
C189
820P
R169
12K
C139
0.47/50
R123
6.8K
R124
6.8K
L112
6.8mH
C188 470P
R144 2.4K
R140
22K
L111
6.8mH
C187 470P
R143 2.4K
R193
8.2K
C153
0.047(ML)
VR103
10K(B)
R287
3.3K
D106
1SS119
D102
1SS119
C182
0.047
0.047
R270
1K
R137
6.8K
R194 8.2K
R138 6.8K
C154
0.047(ML)
R128 3.3K
R286
150
(1/2W)
C235
10/50
C234
10/50
R278
10K
R279
10K
R280
1K
R282
6.8K
R288
12K
SW108
R248
820
C219
0.022
C225
0.022
R275
10K
R274
10K
R277
10K
R281
12K
Q137 KRC104 S
Q136 KRC104 S
X101
6MHz
LED101
SLR325MG
LED103
SLR325MG
LED102
SLR325MG
R272
1K
R271
1K
R199
15K
C239
330/16
VR102 10K(B)
VR101 10K(B)
R299
270
R294
22K
R293
22K
R295
10K
D101
1SS119
R110
12K
R109
12K
C181
0.022
C224
C224
270P
C223
C223
270P
C222
270P
C221
270P
270P
D113
1SS119
R267 1K
R266 1K
R265 1K
R264 1K
Q118
KRC104 S
R139
22K
R141
18K
C152
100P
C151
100P
C183
10/50
C184
10/50
R173
100K
R175
47K
R176
47K
R174
100K
R179
10K
R180
10K
C186
10/50
C185
10/50
R177 2.2K
R178
2.2K
R160
5.6K
R189
33K
R191
10K
R192
10K
R190 33K
Q119
KRA104 S
C156
22/25
C150
560P
L104
6.8mH
C157
220/16
R135
2.2K
C145
4.7/50
4.7/50
R161 330K
C158
0.22/50
R162
47K
D103
1SS119
ZD101
MTZJ13B
R285
100
C231
22/25
R290
33K
Q145
KTC3199 GR
C230 4.7/50
C160
0.0022(ML)
C162
0.0022
(ML)
C159
0.0022(ML)
C163 0.0022
C161
0.0022
C144
330P
C143
330P
R133
3.9K
R159
5.6K
R154 560
R153 560
R151
22K
R146 5.6K
R145 5.6K
R155
100K
R149
3.3K
R136
2.2K
R263
1K
R262
100
R261
100K
C218
1/50
D112
1SS119
Q135
KRC107 S
RESET
R276
10K
VR104 10K(B)
C148
1/50
C167 0.1/50
C165 0.1/50
C147
1/50
C149
560P
L103
6.8mH
C142
1/50
IC103
HA12142NT DOLBY NR
R132 3.9K
Q110
KRC104 S
Q108
KRC104 S
Q106
KRC104 S
Q105
KRC104 S
Q107 KRC104 S
Q109
KRC104 S
C146
4.7/50
Q139
KRC102 S
R283
820
(1/2)
C217
100/10
IC105
IX0142AW
10
11
12
13
14
15
16
17
18
19
21
20
22
23
24
25
26
27
28
29
30
31
32
TAPE
MICROCOMPUTER
10
11
12
13
14
15
R-CH P.B.
AMP.SENS.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
AC POWER
SUPPLY CORD
(213)
AC 230V
50Hz
CORE(230)
POWER
TRANSFORMER
T101
T. F
L110
2.2
µ
H
C192
150P
C191
150P
When Servicing,pay attention as the area
enclosed by this line ( ) is directly
connected with AC main voltage.
enclosed by this line ( ) is directly
connected with AC main voltage.
RT-XV300H
– 10 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
Figure 10 WIRING SIDE OF P.W.BOARD (1/2)
9
8
7
6
5
4
3
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
4
3
2
1
5
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
4
3
2
1
5
VR105
VR106
R-CH
BIAS
L-CH
BIAS
BIAS
TP101
IC102
IC103
3
2
1
R249
Q132
CNS105
6 5 4 3 2 1
Q121
L108
R202
R203
Q125
R201
C205
C202
C203
C204
R200
C101
C201
C206
Q129
CNP102
CNS104
2 1
5
4
3
2
1
4
3
2
1
7 6 5 4 3 2 1
CNS106
R291
R284
Q156 Q160
R287
D119
R248
D118
R235
Q130
Q131
B C E
B C E
E
B
C
E
E
C
B
C B
E C B
E C B
E C B
BI103
11
1
IC105
D112
Q135
D113
C216
C182
R288
C219
R278
R237
R240
R263
R250
R276
R281
R274
C217
CNS107
4
3
2
1
Q138
C212
C126
R117
Q109
C115
R119
L101
R127
Q105
R123
C133
R183
C131
R185
C129
C153
R223
R163
C109
C107
C173
C119
L105
C177
R114
C103
R101
R182
R209
C200
R113
C121
R181
7 6 5 4 3 2 1
R165
R166
C178
C176
L106
C106
C104
R104
R108
R106
C112
R102
C122
R103
C111
C105
R105
R111
C117
IC101
C123
R115
R118
C118
C124
C174
R205
C120
C108
R164
C110
R120
C116
L102
R128
R124
C134
R184
C132
R186
C130
C154
R122
Q108
Q111
Q110
Q112
R219
R194
C114
Q113
R198
R207
R208
C240
C139
R169
R109
L-CH
P.B.
AMP.,
SENS.
P.B.
AMP.,
SENS.
L-CH
REC.
AMP.,
SENS.
REC.
AMP.,
SENS.
R133
C141
C189
VR101
VR103
C171
R149
R170
C140
R188
C128
C127
R187
C147
C172
R189
R295
Q118
Q117 Q119
R191
L103 R294
R293
L111
C149
C151
C143
C155
C161
C159
R145
R153
R151
C157
C156
R143
R140
R141
C144
R297
Q158
R190
R296
R139
R146
L112
R144
R154
C160
R152
C162
R299
C170
R171
TP102
4 3 2 1
S
G
D
S
G
D
C184
R160
C192
R172
Q116
C168
R158
C167
C165
C163
R157
R155
C158
R159
R161
C185
Q145
R175
Q152
R174
R178
R272
R271
R173
Q151
C186
R179
IC106
R270
L110
R265
R267
R264
R266
R177
R180
1
3
5
7
9 11 13 15
2
4
6
8 10 12 14
Q115
C183
R176
C164
C166
R156
C239
R286
ZD101
C235
C234
C231
R199
C229
C233
C232
R290
Q139
Q140
R283
D104
C227
IC104
C226
3
C228
R282
D102
D101
Q134
R262
X101
C181
R261
C218
D108
D107
C190
L107
RP101
CNP101
Q146
Q133
R254
R260
R217
C222
C223
C224
C225
C225
R298
R138
R137
R193
R121
R222
Q136
R221
R239
R238
R253
Q126
R280
R275
R206
Q154
R197
Q153
R211
R228
R233
R234
R230
R231
R232
R218
R210
Q137
R277
R279
C221
R107
R112
Q106
Q102
Q104
R116
Q103
Q101
Q107
R195
R220
Q128
Q127
R229
R136
R192
C150
R135
R110
Q114
R150
R134
C152
C188
C187
C230
C169
C145
C113
Q122
C148
C210
Q124
C180
C179
C215
Q123
L109
C214
Q120
C102
C175
C125
C211
VR102
L104
VR104
C142
C146
D106
R216
R273
R246
R247
R252
R251
R214
R215
R242
R243
R244
D103
R285
R213
R212
R241
R236
D110
R131
D109
R132
D111
R162
R268
5
10
15
20
25
30
35
36
1
18
19
C191
2 1
1
E
C
B
2 3
B C E
1
2
3
R-CH
P.B.
AMP.,
SENS.
P.B.
AMP.,
SENS.
R-CH
REC.
AMP.,
SENS.
REC.
AMP.,
SENS.
B R
COLOR TABLE
R D ( R )
O R
Y L
G R
B L
V L
G Y
W H ( W )
B K
P K
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
VIOLET
GRAY
WHITE
BLACK
PINK
Q157
GR
BK
BL
GR
BK
BL
WH
BK
BK
BL
WH
BK
BK
RD
YL
YL
1
2
3
4
5
6
7
2
3
4
5
6
7
WH
RD
YL
RECORD/PLAYBACK/
ERASE HEAD(58)
CNS101
CNS102
M251
TAPE MOTOR
2
2
1
1
TAPE MECHANISM
MAIN PWB-A1
SOC101
MD-X300H
MD-XV300H(BR)
MD-XV300H(BR)
FROM AMP. UNIT
(231)
RT-XV300H
– 11 –
Figure 11 WIRING SIDE OF P.W.BOARD (2/2)
7
8
9
10
11
12
SW404
TAPE SIDE A
ERASE PREVENTATION
SW403
TAPE MAIN
9 10 11
8
CNP103
3
7
6
5
4
2
1
PH401
1
4
2
3
SW401
TAPE CASSETTE
DETECTION
SW402
TAPE SIDE B
ERASE PREVENTATION
TAPE CrO
2
DETECTION
PHOTE INTERRUPTER
SW405
TAPE METAL
DETECTION
SW406
LED103
LED102
LED101
REVERSE
MODE
SW108
1
6
5
1
4
1
REWIND
SW103
SIDE B PLAY
SW106
R257
STOP
SW105
SW107
SIDE A PLAY
FAST FORWARD
SW104
LED105
R258
LED104
R259
R256
1
5
RECORD/PAUSE
SW102
LED106
R255
SW101
DOLBY NR
LED107
R196
R245
LED108
Q155
LED109
D120
1
7
T101
POWER TRANSFOMER
POWER TRANSFOMER
4
1
C237
C238
D115
D114
D117
D116
F101
T800mA L 250V
T.F.
SOL401
SOLENOID
TAPE MECHANISM PWB-B
SWITCH C PWB-A2
SWITCH A PWB-A4
SWITCH B PWB-A3
POWER PWB-A5
11
10
10
9
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
PK
BK
BK
WH
GY
VL
BL
BL
GR
YL
OR
RD
BR
RD
BR
FW105
FW107
FW106
FW104
CNS103
6
1
7
1
AC POWER SUPPLY
CORD(213)
AC 230V 50Hz
CORE(230)
(227)
BROWN
BLUE
(227)
When Servicing pay attention as the area enclosed by
this ( ) is directly connected with AC main voltage
this ( ) is directly connected with AC main voltage
RT-XV300H
FUNCTION TABLE OF IC
IC105 RH-iX0142AWZZ (IX0142AW): Tape Microcomputer
Function
1
MOTOR
D1
Output
Motor Control
2
FWD
D2
Output
FWD, REV, REC, LED direct drive
3
REV
D3
Output
LED ON = L
4
REC
D4/RTP
Output
LED OFF =H
5
REV
D5/RTP
Output
LED drive
6
T-RDY
D6/INT0/Z
Output
REV1 REV2 Lighting LED
H H
H L
L H
H H
H L
L H
7
REV2
D7/CNTR
Output
Serial communication with system microcomputer
8
T-CLK
D8/SCK
Input
T-RDY ; Transmission Ready signal from TAPE microcomputer
9
T-DATA
D9/SOUT
Output
T-CLK ; Reception clock signal from SYS microcomputer
10
T-CMD
P20/SIN
Input
T-DATA ; Transmission data from TAPE microcomputer
T-CMD ; Reception data from SYS microcomputer
T-CMD ; Reception data from SYS microcomputer
11
PCNT-IN
P21/INT
Input
Power control signal input Power ON = H
12
RESET
RESET
Input
RESET OFF = L
13
CNVss
CNVss
—
GND
14
Xout
Xout
—
XOUT Main clock ceramic oscillator 6 MHz
15
Xin
Xin
—
XIN
16
Vss
Vss
—
GND
17
Vdd
Vdd
—
+ 5V
18
Vref
Vref
—
+ 5V
19
AVss
AVss
—
GND
20
KEY1
P30/AIN0
Input
Various key input (A/D input)
21
MKEY1
P31/AIN1
Input
Cassette mechanism SW detection (A/D input)
PLAY-SW, F.P.A-SW, F.P.B-SW
PLAY-SW, F.P.A-SW, F.P.B-SW
22
MKEY2
P32/AN2
Input
Cassette mechanism SW detection (A/D input)
CST-SW, CrO
CST-SW, CrO
2
-SW
23
APSS/INI
P33/AN3
Input
APSS music interval detection port DOLBY mode
Interval = H or Initial setting
Music = L Input
Interval = H or Initial setting
Music = L Input
24
REV3
P00
Output
Reverse IND control
Lighting = H
Lighting = H
25
M-MUTE
P01
Output
EQ mute control
Mute ON = H
OFF = L
Mute ON = H
OFF = L
26
DOLBY-B/C
P02
Output
27
DOLBY-ON/OFF
P03
Output
28
REC CNT
P10
Output
EQ REC circuit ON/OFF control
ON = H
OFF = L
*According to timing chart
ON = H
OFF = L
*According to timing chart
29
CrO
2
-R/P
P11
Output
EQ CrO
2
selection control
Mechanism SW CrO
2
ON = L (NORMAL)
OFF = H (CrO2)
*According to timing chart
*According to timing chart
30
BIAS
P12
Input
EQ bias ON/OFF control
BIAS ON = H
OFF = L
*According to timing chart
BIAS ON = H
OFF = L
*According to timing chart
31
PLS-IN
P13
Input
TAPE rotation pulse detection
32
SOL
D0
Output
Solenoid control
Solenoid ON = L
OFF = H
Solenoid ON = L
OFF = H
Terminal Name
Input/Output
Port Name
Off
B
C
DOLBY-B
L
H
L
DOLBY-C
L
L
H
Pin No.
– 12 –
Click on the first or last page to see other RT-XV300H (serv.man2) service manuals if exist.