Service manual

– 29 –
CD-C449W/K449W
Figure 29 SCHEMATIC DIAGRAM (8/15)
7
8 9 10 11 12
12
11
15
14
13
16
9
10
8
18
7
17
RK57
4.7K
QK19
KRC104 M
CK41
47/25
CK46
220/10
CK45
22/25
2
RK50
10K
RK58
470
ICK01
PLAYBACK AND RECORD/PLAYBACK AMP.
AN7345K
QK15
KRC104 M
CK37
0.018
CK10
47/25
CK35
0.022
RK41
82
LK01
1.8mH
CK33
22/25
RK39
560
CK31
470P
CK29
470P
7
K
CK39
0.0033
CK42
47/25
CK34
22/25
QK16
KRC104 M
CK38
0.018
CK36
0.022
3
8
K
CK32
470P
CK30
470P
6
K
CK47
0.022
RK45 10K
RK49 10K
CK40
0.0033
RK47
10K
CK44
0.022
CK43
0.022
QK18
2SC2878 A
RK48
10K
RK43
10K
QK17
2SC2878 A
RK46
10K
RK52
1K
QK24
KTA1266 GR
QK25
KTA1266 GR
QK27
KRC104 M
QK40
KRC107 M
QK29
KRC107 M
QK30
KRC104 M
RK62
47K
RK72
27K
RK64
4.7K
LK03
1mH
RK63
10K
RK65
10K
RK81
6.8K
QK26
KRC104 M
QK21
KTC3199 GR
RK56
33K
RK61
270
RK42
82
RK40
560
LK02
1.8mH
CK55
0.022
CL13
3.3/50
RL24
3.3K
QL16
KRC107 M
DL11
1SS133
RK68
4.7
LK04
330µH
CK51
0.027(ML)
CK52
47/16
QK28
2SC2236 Y
CK50
0.0082(P.P)
RK66
27K
RK67
47K
CK62
0.047
RK73
27K
RK55
33K
QK22
KTC3199 GR
RK54
10K
RK53
10K
1
7
0
4 M
QL18
KRC104 M
QL19
KRC104 M
PB.MUTE
GND(A)
12V(A)
HIGH=CHROME
NOR/CrO
VCC
RIPPLE
ALC
ALC GND
HI.SP
–
+
56K
+
–
56K
HI.SP
HI.SP
BIAS
T12CRO2
TA2CAM2SW
T22B2FP
T12RUN
T22A2FP
M2GND
T22RUN
GND(BIAS)
TA2F/R SPEED
TA2MOT2SW
M212V
TA2SOL
MAIN SECTION
P24 1-G
MAIN SECTION
P24 1-G
3
1
2
3
1
2
3
1
2
3
3
4
1
5
6
7
2
8
9
10
11
12
TA_CAM_SW
T2_A_FP
M_GND
T1_RUN
T2_RUN
TA_F/R SPEED
TA_SOL
TA_MOT_SW
M_12V
T2_B_FP
T1 Cro2
T2 Cro2 H:Cro2
L: NORM
PB.MUTEH:ON L:OFF
PRE L-CH
HI. SP H:LOW L:HIGH
PRE R-CH
TA T1/T2H:T1 L:T2
13
14
25
16
26
22
21
15
BIAS H:ON L:OFF
RK75
82K
RK74
82K
1
1
1
1
1
2
2
2
2
2
3
3
3
3
3
RK60
270
TA R/P @ H:PB L:REC
TA BE EQ L:NORM
H:Cro2
REC L-CH
REC R-CH
REC MUTE
1
2 3
1
2
3
1
2
3
MAIN PWB-A(4/4)
23
24
17
18
20
19
0V
0V
0V
0V
0V
0V
0V
0V
5.4V
5.4V
5.4V
0.3
V
0.3V
0.27V
0.26V
V
0
V
0.6V
3.0V
0.6V
0V
3.0V
3.1V
0V 0V
3.8V 6.3V
0.3V
0V
0.3V
0V
0V
0V
0V
0.7V 0.7V
12.6V
12.5V
0.3V
4.1V
0V
0V
0V
12.5V
0V
12.5V
0V
0V
1
2.5V
0V
0V
0
V
4V
0V
0V
3.8V
3.8V
0V
0V
0.7V
0V
0V
0V
0.7V
0V