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PICKUP UNIT +5V Q1 Q52 +B1 XL1 +5V
62 64 44 45 23 36 41 43 33 38 39 46
6
VVDD VDD LVDD RVDD XVDD
LD0
VCC1
XIN XOUT
22
2 4 8
LCHO LVSS RVSS RCHO
37 38 39 40
11
JP 32
~
10 EFMIN 12 CLV+
IC2 LC78622NE SERVO/SIGNAL 11 CONTROL 9 EFMO
~
27
TO MAIN SECTION (TO IC601)
FOCUS COIL CV+ 40 SLC 43 SL1 44 Q51
20 JP
1 2 3 4
FIN2 FIN1 E F CONT1 24 RES. CQCK. COIN SQOUT. RWC. WRQ
51 62 ~ 64 53 ~ 58 26
IC1 LA9241M SERVO AMP.
1 2 3 4 5 6 CNP11
TRACKING COIL
TO FD SPO NC SLD SL SL+ DRF CL DAT CE
CONT2 25
15 16 27 23 29
30 31 54
51 52 53
CL, DAT, SELIAL CONTROL/CE
Figure 17 BLOCK DIAGRAM (1/3)
1 2 7
20 25 42 41
17
SL+. SL. DRF
20 40 24 18
M2 SLED MOTOR
M1 SPINDLE MOTOR
10 GND (D)
10
SW2 MECHA UP SW3 DISC No. SW1 OPEN/CLOSE
M
+B1 +B5
M
23
6 7 4 5
MECHA UP GND (D) DISK NO. OPEN/CLOSE GND (D) M M+ GND (M)
M
CNP10 CNS10
M3 LOADING SOLM1
15 16 26 27 36
IC3 M63001FP FOCUS/ TRACKING/ SPIN/SLED DRIVER
28 39 38 37
9 8 7 6 5 4 3 2 1
9 8 7 6 5 4 3 2 1
PICKUP IN SW4 PU-IN SW
8 ~ 14 21 22
29 ~ 35
TO MAIN SECTION
REGULATOR +4.3V Q81 +7.3V (B1)
CD-C621H
CD-C621H
SO301 ANTENNA TERMINAL 8
+B4 FM IF AMP Q301
FM IF CF351
X351 456kHz
+B4
SM AMP. QT21
FE301 FM FRONT END
2 6 7 3 FM OSC 4 VT
FM IF 1 5 CF301
FM IF CF302 FM IF IN 1 2 OUT AM IF T351 3 REG 4 5 8 9 17 IN GND VCC
19 20 18 16
AM LOOP ANT
VR351 FM MUTE LEVEL AM OSC
24 23
IC303 LA1832 FM/AM IF MPX.
22 21
FM/AM OUT
MPX IN
SWM3 FOOL PROOF SWM4 F.A.S SOLM1 SOLENOID SWM5 CAM
IF OUT
10 11 12 14 15
7 STEREO
13
6 SD
AM RF IN
MONO/ST
IN
AFC
L
R MUTING
OUT
L341 BALUN AM RF AM ANT T302 AM OSC T306
FMOSC
Q361 MPX PHASE
MPX VCO CUT
Q353 Q354 TUNER MUTE
+B5
B1
8 3 5 IC563 KIA4558P OPE AMP. 6 7
4 1
VOLTAGE REGURATER +B4 X352 4.5MHz FM MONO/ST
AM IN
FM IN
IF IN
FM +B
+B4 Q360 7
20
1
22
15
16
11
10
13
12
17
+5V
3 8
IC562 KIA4558P OPE AMP. 4 1 FM/AM SWITCHING
OSC FM
VOLTAGE REGULATOR
IC302 LC72131 PLL (TUNER)
3 4 5 6 CE DI CL DO
21
+B5
B1
+B7
1 IC704 KIA7042AP 2 RESET
3
Q371
23
22
21 20
15
14
13
VDDA CL DO
ICT21 LC72720 RDS DECORDER
2
4
3
12
XOUT XIN
MPX CE IN VSSA DI
XT21 4.332MHz
VDDD
VSSD
JK601 VIDEO/AUX L AUX R TAPE CNS11 FROM CD SECTION CNP11 1 2 3 TUNER CD
+B4
11 10
IC101 AN7345K PLAYBACK AND RECORD /PLAYBACK AMP.
L(T1) 1 R(T1) 24 L(T2) 2 R(T2) 23 P.B.
13
L R L R L R L R
5
16
4
17
3
18
2
19
IC601 M62439SP AUDIO PROCESSOR
1 20 9
13 R
8 L
TAPE 1 PB HEAD
L-CH R-CH
+B4 PB Q121 Q122 MUTING L REC R L NF R NF ALC REC
4 L 21 R 5
20
REC P.B L-CH R-CH REC PB HEAD TAPE 2
SWITCHING Q103~Q106
L NF 3 R NF 4 POP REDUCE 6 L REC 9 R REC 16 T1/T2 REC H/N
7
18
8
17 10
AC BIAS
REF 14
12
NOR/ HIGH
15
T1/T2
19
T1/T2 SWITCHING Q107 Q108 SWITCHING Q111
Q109 SWITCHING BIAS OCS ERASE HEAD
Q110 SWITCHING BAIS Q126 BAI
Q128 L104
Q124 L103
Figure 18 BLOCK DIAGRAM (2/3) 18
CD-C621H
SWM3 FOOL PROOF SWM4 F.A.S SOLM1 SOLENOID SWM5 CAM
FL701 DISPLAY
M
MM1 TAPE MOTOR
Q702 Q703
1 2 3 4 ~ 15 16 ~ 25 26 ~ 28
29 ~ 36
37 38 39
Q705 Q706 Q707
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 50 49 48 47 46 VDD 45 44 43 42 41 40 39 38 37 36 35 34 AVDD 33 32 31 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
+B7
FM/AM SWITCHING +B7 1 IC704 KIA7042AP 2 RESET 3 +B7 1 RX701 3 2 +B7
IC701 IX0281AW SYSTEM CONTROL MICROCOMPUTER
VDD
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 5 4 3 2 1
UNSWITCH +B7 MEMORY BACK UP TO CD SECTION +B5
+B7 XL701 4.19MHz Q704
VDD
Q960
M
M901 FAN MOTOR
+B5 KEY SW701 ~SW730 +B5 PHM1 Q908 JK970 HEADPHONES RL901 SO901 SPEAKER TERMINAL SURROUND SPEAKER T801 POWER TRONSFORMER
+B4
10
C601 2439SP PROCESSOR
9
13 R
8 L Q601 Q602 Q603 Q604 15V
14 10
IC901 STK40704 POWER AMP.
B 1 2 +B 3
15
FRONT 6 L-OUT 7 R-OUT
D801
B1
F802 T4A L 250V
FRONT SPEAKER
VOLTAGE REGULATOR Q121 Q122 MUTING +B4 REC +B1 +7.3V Q822 F832 T500mA L 250V VOLTAGE REGULATOR D803~D806 +12V(MOTOR) VOLTAGE REGULATOR AC POWER SUPPLY CORD VOLTAGE REGULATOR Q801 T1/T2 D807 ~D809 T.F L801 AC 230V 50Hz F805 T2A L 250V F803 T4A L 250V RL801
+12V(ANALOG)
Q824
+B5
Q823
+B2 ZD801
+5.6V
Q821
+B6
+5V Q802 UNSWITCH Q803 T802 POWER TRONSFORMER
BAIS
+B7
D810~D813
Figure 19 BLOCK DIAGRAM (3/3) 19