JVC MX-K1 Service Manual page 35

Standard schematic diagrams
Head AMP, tuner and audio section
7
PB-HD L.CH.
CN307
R521 1K
1 1
2 2
TAPE.A
3 3
6
Q322 DTA114YS
R421 1K
CN307a
Q323
Q503 DTA114YS
PB-HD R.CH.
2SC2785
C303
50V2.2
RP-HD R.CH. Q504
2SC2785
R422 1K
1 1
2 2
3 3
TAPE.B
4 4
5 5
6 6
7 7 R522
1K
8 8
RP-HD L.CH.
CN308a CN308
5
Q325
DTC114YS
E-HD
Q505
2SC2785
R301
L301
BIAS-COIL
R308
Q302
KTC3200
C339
R309
0.01 10
4
+
Q301
DTA114YS
C7 12P
C18 0.01
R1 1.5K
R6 47K
3 C22 0.001
C4 0.022
C8 5.6P
C20
R2 100K
C9 0.047
0.01
R3 1K
C5 0.047
1 3
IN OUT
LC1 BPF
C23 0.01 C15 0.022
2
C6 10P C16 25V10
AM
GND
KTC3194(O)
GND
FM
JA302
C1 0.022
1
A B
R370 1K R303 1K R304 330
+
C504
0.018-M
R502 6.8K
R501 100K
R507 68K
C503 33P
C511 25V10
R513 22K
C515
25V4.7
+
C415
25V4.7
R413 22K
C411 25V10
C403 33P
R407 68K
R401 100K
+
R402 6.8K
C404
+
0.018-M
+
C409 1000P
R406 6.8K
R405 10K
1K
Q304 KTA1267Y
R310 39
R317 4.7K
Q402 2SD2144
R418
Q303 2.2K
KTC3203Y
10K
C312
0.0068M
R518
2.2K
Q502
2SD2144
L-Tape.A /H-Tape.B
R19 1.2K
R27 22
C71 0.001
C50 16V47
Q2 R51
+ +
KTC3195Y
C43 0.001
C41 C67
50V2.2
R23 5.6K R25 4.7K
0.01
R24 5.6K R26 4.7K
C3 0.001 R16 10 C17 3P
C40
50V2.2 CF3
R8 10
CDA10.7MG1-A
C42 0.001
C51
R20 100
C28 50V0.47 12P
R21 3.3K
Q3 DTC114YS
C29 50V0.22
C30 50V3.3 C52 12P
Q4 DTC114YS
C61 100P
C44 10P C62 100P
R22 100K
C63 100P
Q1
C13
10V100
R76 10K
+
T1
AM IFT
R12
470K
C14
0.022
C70
0.001
FLAME GND
C D
+
M
-
HEAD SW
HALF SW
CN305
Q311
Q309 KTA1273Y KTA1273Y
R321 2.2K
R323 2.2K
C317
16V100
R324 2.2K
R322 2.2K R325 2.2K
C318
C314 25V4.7
0.01
SOLA SOLB MOT
C319
16V1000
R339 2.2K
EXCE 1 16
STRB VCC
R340 2.2K
SD0 2 15
DATA OE
R341 2.2K
SCK 3 14
CLK Q5
BC2
4 13
Q1 Q6
SOLA BC1
5 12
Q2 Q7
SOLB RPHD
6 11
Q3 Q8
MOT BIAS +
7 10
Q4 Q'S
A/B
8 9
GND QS
IC402 74HC4094 +
(PORT EXTENSION)
1K
C53 1-TF C58
0.001
C54
0.0039
C59
10V100
R59
10K
R202
6.8K
R66 47K
R67 47K
R102
R68 47K 6.8K
C60
R69
47K
0.01
R70 47K
C101
100P
Q7 C201
2SC2785 100P
!
R74
+
R72
33-1/4W UNF.F
100K
R73 1K
0.001
C338
L304
F.B
1SS133
D326
1SS133
D327
JA301
FLAME GND
E F G
To A-4 on page 2-7
TO CTRL PWB
CN301
FFC-21P
TO CD SCH.SECTION
TO CD SCH.SECTION
To I-6, I-7
OPN
on page 2-6
CLS
CW
HALF-SW CCW
CNTT
To I-2, I-3
OPSW
on page 2-6 CLSW
REC-FWD
UPSW
DWSW
DCNT
TPSW
To I-6
MCLK
MDATA
HEAD SW on page 2-6
Q327
KTA1267Y
Q313
KTA1273Y
C341 0.01
R363
470
C205 50V1 R213 10K C208
+
Q319
Q318
DTC114YS KTA1267Y
R374 22K
Q321
C326 R113 10K
DTC114YS
0.01
D314
R361 22K
1SS133 ! C105 50V1 C108
D323 1N4001
D324 1SS133
L305
10uH
R108 10K
C202 50V1
R106 6.8K
C102 50V1
R109
C113 0.12-M
IC101 TDA7440D 1.2K
C203 50V1 R103 2.2K
1 28
RIN3 RIN4
2 27 C213 C328 16V47 C115 10V100
RIN2 LOUT R104 2.2K
0.12-M
3 26
RIN1 ROUT R105 150K R110
C329 0.01
2.2K
4 25
LIN1 AGND C114 0.1-M
5 24
LIN2 VS
C327 C330
C103 50V1
6 23
LIN3 CREF
16V10 100P
7 22
LIN4 SDA
C106 8 21
MUXO-L SCL
25V4.7 C107
9 20
IN(L) DGND
C212
25V4.7 10 19 0.0056-M
MUXO-R TRE(R)
C207
11 18 C214
IN(R) TRE(L)
0.1-M
C112
C206 25V4.7 12 17 0.0056-M
BIN(R) N.C
25V4.7
13 16
BOUT(R) N.C R210
2.2K
R205 150K
14 15
BIN(L) BOUT(L)
R204 2.2K
C215 10V100
R203 2.2K
R209
C110 0.082-M R112 5.6K
1.2K
R206 6.8K
R212 5.6K
R208 10K
Q201
2SC2785
+ +
R348 2.2K
D308
Q316 1SS133
2SC2785
Q315
2SC2785
C335
25V4.7
C334
50V1
+
CD/TAPE PLAY SIGNAL Parts are safety assurance parts.
When replacing those parts make
TAPE REC SIGNAL
sure to use the specified one.
RADIO SIGNAL
H I
MX-K1
SQCK
SUBQ
MLD
XRST
MOMU
STAT
REST
BLKCK
GCTL
CN302
FFC-20P
FTU 20
FTU
MPX 19
MPX
AHB 18
AHB
EXCE 17
EXCE
SDO 16
SDO
SDI 15
SDI
SCK 14
SCK
TUCE 13
TUCE
XRST 12
XRST
FCD 11
FCD
REST 10
REST
MOMU 9
MOMU
MLD 8
MLD
SUBQ 7
SUBQ
SQCK 6
SQCK
VCK 5
VCK
VDATA 4
VDATA
STAT 3
STAT
BLKCK 2
BLKCK
GCTL 1
GCTL
CD+5V
D.GND
25V4.7
OUT.L
A.GND
OUT.R
SW5V
M.GND
M+9V
25V4.7
D309
1SS133
+
1
R.OUT
2
A.GD
3
L .OUT
4
5V6
5
D.GND
6
MGND
7
B.CTRL
8
SFTY
9
CDA.GND
10
9V
11
TUGND
D311
1SS133
D310
1SS133
Q317
2SC2785
R359
470
+
J
2-5