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CX-JV1
6-4.
BLOCK DIAGRAM – AMP/POWER SUPPLY Section –
MIC LEVEL
AGC
Q401
J401
MIC
MIC AMP
MIC AMP
IC401 (1/2)
IC401 (2/2)
VR401
MIC MIXING
J603 (1/2)
L
VIDEO/AUX
R
R-CH
19 A-IN
CD
E
(Page 22)
21 B-IN
PB-OUT
6
TU
(Page 23)
F
23 C-IN
PB, REC
PB
J
(Page 23)
2 PB1P
REC
28 REC1O
13
LM-L, LM-R,
TM-L, TM-R
(Page 21)
C
DATA, CLK,
S-OUT, LCK
K
(Page 23)
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD PLAY
: TUNER (FM/AM)
: TAPE PLAY
: REC
: VIDEO/AUX IN
: REC OUT
: MIC INPUT
RESET,
RESET SIGNAL
P-DOWN
RESET
RESET SWITCH
M
(Page 23)
GENERATOR
Q901
IC502
P-DOWN
LEVEL SHIFT
Q406, 407
DIGITAL ECHO
DATA
5
IC402
LEVEL SHIFT
CLK
3
Q402, 403
LATCH
4
LEVEL SHIFT
LATCH
23 MIC-OUT
C-IN
32
27 C-OUT
MIC-IN
31
Q404, 405
D402
R-CH
FEED BACK
SWITCH
Q643
DBFB CONTROL
Q641
BASS BOOST ENHANCER
17
IC671
+
7 VOL-IN
OUT
18
1
INA
OUTA
6
INPUT SELECT,
13
14
7
ELECTRICAL VOLUME
IC601
BOOST
FREQUENCY
CONTROL
CONTROL
Q674 – 677
Q671 – 673
8 – 11
5 – 7
BOOST1 –
FREQ1 –
BOOST4
FREQ3
LM-L
14 LM-L
LM-R
BBE CONTROL,
15 LM-R
TM-L
LOADING/TABLE
12 TM-L
MOTOR DRIVE
TM-R
13 TM-R
IC672
2 3 4
+3.3V (CD)
D697
+4V
+4V
REGULATOR
IC003
B+ SWITCH
VCC
Q023, 024
D504
POWER TRANSFORMER
+4V
(SUB)
+3.3V
REGULATOR
PT002 (Except Thai)
D002, 003 (Except Thai)
IC501
PT011 (Thai)
D091, 092 (Thai)
V-STBY
RECT
DATA
VOCAL FADER ON/OFF SWITCH
IC712
CLK
14
+
13
12
BUFFER
10
IC711
MIC
R-CH
MUTING
CURRENT
CONTROL
MIRROR
Q746
Q105, 107
R-CH
VM
PRE DRIVE
CASCADE
FINAL DRIVE
Q101, 103
Q109, 111
Q125, 127
MUTING
Q181
BIAS
OVER CURRENT
Q117, 119
DETECT
R-CH
Q281
MUTING
MUTING
CONTROL
CONTROL
Q183
Q184 – 186
D181
VL (AC)
16
VDD
VM
+7V
(CD)
CD-VM
D694
+5V
+7V
+5V (VCD)
REGULATOR
REGULATOR
Q605, 606
Q601, 602
+3.3V
+3.3V (VCD)
REGULATOR
Q801
CD ON
SWITCH
Q603, 604
VF1
TO
VF2
FLUORESCENT
INDICATOR TUBE
–VFL
24
24
REC AMP
Q741
MUTING
Q743
R-CH
+VH
SWITCHING
OUTPUT LEVEL
Q231
+
DETECT
R-CH
Q233, 234
+VL
+VH
SWITCHING
OUTPUT LEVEL
Q232
DETECT
Q235
+VL
R-CH
+
TH101, 102
R-CH
OVER LOAD
DETECT
+
THERMAL DETECT
Q129
Q291, 292
+
R-CH
DC DETECT
Q063, 064
HOLD
Q282
VH1, 2 (AC)
+
AC DETECT
D067, 068
VH1, 2 (AC)
+
HOLD
PROTECT
Q045, 046
Q047
+
+9V
REGULATOR
POWER TRANSFORMER
(MAIN)
IC002
PT002 (Thai)
PT004 (Except Thai)
VM1
+9V
B+ SWITCH
RECT
REGULATOR
VM2
Q001
D019 – 022
IC001
VH1
+VH
RECT
VH2
D009
–VH
TO
POWER AMP
VL1
BLOCK
+VL
RECT
VL2
D010
–VL
VSS
–32V
REGULATOR
Q041, 043
RY001
RELAY DRIVE
Q022
DATA, CLK, LATCH
G
(Page 23)
L
J603 (2/2)
REC OUT
R-CH
R
MIC, VF ON
H
(Page 23)
J221
PHONES
J203
5
SPEAKER
+
L
–
+
R
–
MUTE, CD ON,
POWER, HOLD
L
(Page 23)
(Except Thai)
S001
VOLTAGE SELECTOR
110 – 120V
220 – 240V
(AC IN)
(Thai)
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