JVC RC-BZ5LB Service Manual page 58

www.freeservicemanuals.info
Amplifier circuit (RC-BZ6BU only)
7
6
5
ANTGND
GND
TUR
TUL
TUSW6V
TP301
R/P HEAD
RC-889
2.3V
1 1
R 2.3V
2 2
4
2.3V
3 3
L
0V
4 4
GND
MG E.HEAD
EM-1636
BIAS
C203
BEAT 1 75K 22/16
BEAT 2 72.5K
BEAT 3 75K
NOTES
1. VOLTAGES ARE DC-MEASURED WITH A DEGITAL
VOLT METER OR OSCILLOSCOPE WITHOUT
INPUT SIGNAL.
3
CONDITION--- CD STOP MODE AT DC SUPLLY R305 2.8V
1.8K (0V)
( )IS INVERT MODE SOUND FLAT AHB.ON
2. UNLESS OTHERWISE SPECIFIED.RESISTORS
ARE 1/6W 15% CARBON RESISTOR.
ALL RESISTANCE VALUCE ARE IN OHM(s) Q311
2SC2001/LK/-T
ALL CAPACITORS ARE CERAMIC CAPACITOR OR
MYLAR CAPACITOR
ALL CAPACITANCE VALUES ARE IN uF(P=pF)
R306
ALL INDUCTANCE VALUES ARE IN uH(m=mH)
1.8K 2.8V
ALL E.CAPACITORS ARE SHOWN IN THE FORM
(0V)
OF CAPACITANCE (uF)/RATEO VOLTAGE (V)
ALL DIODES ARE 1SS133-T2
Q312
ALL NPN TRANSISTORS ARE 2SC2458/YG/-T
2SC2001/LK/-T
CDR
GND
CDL
CD+B
2
MG
DG
SW8V 17 8.3V
16
CD+B 6.8V
FCD 15 0.7V
AC/DC 14 2.1V
13
TAPE 5.7V
REC 12 0V
11
SAFETY 5.0V
REST 10 4.6V
MLD 9 5.1V
8
MDATA 4.8V
MCLK 7 5.0V
6
DG 0V
XRST 5 5.1V
4
STAT 0.1V
SQCK 3 5.1V
SUBQ 2 5.0V
1
DG 0V
1
CN304
QGF1212C1-17
TO CD SECTION
TO J-6 on page 2-5
A
RC-BZ5LB/BZ5RD
C217
1/50
R202
1K
C215 C325 C234
0.1/50 100/10 0.0056
C213
R319 C212
0.022 0.47
100
R201
3K
VOL TONE
C115
0.1/50
C113 C112
0.022 0.47
R116
C111
1K 0.0068
C117 R102
1/50 1K
C208 1/50
C108 1/50
C309 0.0018
C103 R107
IC301 TA2068N
22/16 82 2.0V
2.0V 12 13
MICNF MICIN R371
C104 R106 2.0V
2.3V
R/P SYSTEM 10K
0.039 82K 11 14
PBO2 RAIN2
0V
R104 2.3V
R304
3.3K 10 15
R108 15K
PBNF2 TAPE
2.3V 2.0V
9 16
C101 0.001
REC2 CDIN2
0V
8 17 R360
C155 2.3V
C130 PBIN2 SEL
180P 2.0V
220P 0V
7 18
VSS OUT2
7.4V R318
2.0V
C102 6 19
VREF VCC
C306 C303 C304
0.0056 2.3V 2.0V
47/10
150P 5 20
PBIN1 OUT1
0V
2.3V
C202 4 21 R317
C230
REC1 P/R
220P 0.0056 2.3V 2.0V
3 22 C357
PBNF1 CDIN1
C201 0.001 2.3V 0V
2 23
PBO1 MICSEL
R208 15K 0V 2.0V
C255 C204 1 24 C107 4.7/50
AGC RAIN1
R207 0.039
82 180P
C207 4.7/50
R206 R204
C305 22/16
3.3K
82K
R303 BIAS OSC
4.7M R312 330
6 1 R310 12K
2.8V C308 5 2
180P
(0V) 0V C310 4 3
0.0018 8.1V C315 0.0047
0V
(2.3V)
T301
Q315 0V R311
DH-812320
2SC2458/YG/-T (0.7V) 100
2.3V
2.3V
R302 (3.1V) S303
(0.1V)
10K SK-23E01-G9 0.7V
2.3V C331 R316 (0V)
(3.1V) 0.001 3.3K
Q313
0V
2SC2001/LK/-T
0V
(3.8V) R307 3.3K
BEAT CUT
R237 6.8K
R137 6.8K
CN303
QGF1212C1-13
TO TUNER SECTION
TO J-2 on page 2-6
B C D
RC-BZ6BU
BASS BOOST
+ +
-
-
IC304
BA15218N OR NJM455OL
C210 C209
0.082 0.082
R322
C110 C109
R315
100K 0.082 0.082
100
R210
R110
1.8K 1.8K
R109 1.8K
R117
R217
R209 1.8K
D302
DTA114ES-T
R211 R111
5.6K 5.6K
3.1V (5.3V)
0V
C350
0V
4.7/50
0V
2SC2001/LK/-T
OR
0V
R212 R112 KTC3203(DY)
220K 220K
C134
0.0056
D304
C330
4.7/50
D914
5.3V 5.3V
(0.7V)
Q316
2SA1015/YG/-T
TAPE SW
4.6V (4.7V)
TU SWITCH
Q304 0V 5.9V
2SA1015/YG/-T (5.8V) (5.8V)
10K Q306 R321
5.6K
5.3V 8550D 5.9V
(OR 8550C) (5.1V)
R332
10K
5.3V (4.5V) 10K
R320
D917 5.6K
100
5.9V C322
47/10 (0V) 1000P
0V D915
(2.8V)
10K
22/16
0V (0V)
C353 Q305
10/16 DTC114ESA-T
6.8V
CD REG
(1.6V) 12.2V
D307 B550D(OR 8550C)
R919
11.6V Q908 56K
(11.7V) 2SB772/QP/
R134 R920
3.9K
4.7K
R234
3.9K
Q909
D910
6.0V
R915
(2.4V) 100
TP302
CN301 R356 D911 5.5V
DGA2501C4-03 10K (2.0V)
(TIP-X03P-52)
R909
1K
R916
820
0V Q911
(2.0V) D995
0.7V C912
(0V) 0.01
0V R908
3.3K
(0V)
C709
2200/5.3
Parts are safety assurance parts.
When replacing those parts make
TO U-COM
sure to use the specified one.
TO D-7 on page 2-4
E F
2-8
Digitized in Heiloo Netherlands
T.S.D
STANDBY
SW
+ +
- BIAS CIRCUI -
C122
100/16
SMUTE DRIVE
C222
100/16
D303
C119
10K
0.47/50
10K
C219
5.1V(0V)
0.47/50
R124
2.2K 0V
(0V)
R224
2.2K
C124 C224
0V 0.1 0.1
0.7V
(0V) (0V) R221 C221 C121 R121
82 220P 220P
0.7V 0V
(0V) (0V)
Q201
0V
(0V) R122 R222 C220 C319 C320 C120
2.2 2.2 100/16 10/25 220/16 100/16
R220 18K
D301
R120 18K
C328 R374 R327 C329
1/50 100K 6.8K 0.1/50 R917 D912
22 IN4001
SW8V REG
6.3V 12.2V
(0.9V)
11.6V Q901 R901 R902
(11.7V)
2SB772/QP/ 4.7K 56K
D906 Q902
2SC2458/YG/-T
7.5V
R903
(0.6V)
5.9V 100
D905 (0.7V)
R904
820
POWER SW US6V REG
Q906
12.2V
(0.7V)
Q903 R914
8550D (OR 8550C) 4.7
12.2V
VMW1474 A
5.9V 12.1V
R906 11.5V
56K (12.2V)
R910
11.5V R911 100K
D918
4.7K
R907
1K
Q904
R912
1K
5.2V
0.1V
(12.2V)
0.7V
4.6V
(0V)
Q310
Q907
DTA143ES-T 2.9V
(4.0V)
2.9V
(0V)
0V (0V)
2.9V
R913 C909
(0V)
5.6K 4.7/50
C911
22/16
0V(3.5V)
Q318 Q309
DTA143ES-T
0.7V
(0V)
0V
(0V)
0V
(0V)
RADIO MAIN SIGNAL TAPE PB SIGNAL
CD SIGNAL TAPE REC SIGNAL
G H
11/28/2017
POWER AMP
IC302
LA4597K
R223
100
HP JACK
J301
82 HSJ2000-01-010
R123
100
GND 0V
1
1
R-CH
R 0.4V
2
2
0V
GND
3 3
0.4V
L L-CH
4 4
SPEAKER
LE10010-005A
0V
12.2V
2.1V
FW301
(TID-X03P-M1)
CN306 TTL25L-003
VMK1474 C
3
1 1
2
2 2
1
3 3
DC 12 V
J9
T9 *
POWER CODE
CN308
QG42501C4-06
(TIP-X06P-82)
0V
GND
1 1
5.7V
PLAY
2 2
0V LEAF SW
GND PLAY
3 3
8.3V
SW8V
4 4
4.5V
US6V
5 5
0V REC SW
LEAF SW
REC
R373 C354 6 6
100 220/10
R328
10K
0V (4.5V)
Q308
DTC143ES-T
J / C
I J