Sharp CD-E77 Service Manual - Page 17

Power, Stk41242, Ic901, Ix0553aw, Microcomputer, System, Control, Ic701

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Page 17 highlights

CD-E700/CD-E77 +B4 B T Q601 Q602 REC/PLAY T1/T2 BIAS FL701 DISPLAY 1 5 12 13 14 19 27 41 45 Q705 +B5 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 40 VDD 70 39 - - 85 79 VLOAD 86 91 92 IC701 IX0553AW SYSTEM CONTROL MICROCOMPUTER 38 37 36 35+B5 AVDD 34 33 31 - VDD RESET VDD CE CLK DI DO 93 29 - - 100 1 2 4 5 6 7 8 10 11 12 13 15 16 17 20 21 22 23 24 +B5 +B5 XL700 4.194304 MHz RESET Q709 +B5 SP. DET. D905 D906 RX701 1 REMOTE SENSOR 3 2 +B5 KEY SW701-SW707 SW711-SW718 SW721-SW724 +B PROTECT +B7 TO CD SECTION +B3 JK701 HEADPHONES Q906 +B6 M901 M FAN MOTOR Q901 Q902 Q903 Q904 L 18 8 R-OUT R 14 5 1 6 7 11 L-OUT IC901 STK41242 2 -B2 POWER AMP. Q905 RL914 MAIN SO901 SPEAKER GROUND TERMINAL +B2 D801 VL+ VL- VH+ VH- F805 4A/125V -B1 +B3 +B1 KIA7812AP KTC2026 IC851 +B7 IC855 LD+7V KIA7810AP M12 +B4 IC852 A+10V KIA7805AP +B6 IC853 IC851,IC852,IC853: +5V VF1 VOLTAGE REGULATOR -VF VF2 +B5 IC854 AN78L05 +5.6V VOLTAGE REGULATOR D802 F802 4A/125V F801 4A/125V D804 D803 F804 2A /125V F803 2A/125V Q801 T.F. PT801 MAIN POWER TRANSFORMER D842~ D845 RL841 AC POWER SUPPLY CORD AC120 V, 60 Hz PT841 SUB POWER TRANSFORMER Figure 17 BLOCK DIAGRAM (3/3) - 17 -

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– 17 –
CD-E700/CD-E77
Figure 17 BLOCK DIAGRAM (3/3)
RL841
PT841
SUB POWER
TRANSFORMER
D842~
D845
IC854
AN78L05
+5.6V
+B5
+B
PROTECT
+B7
+B2
D801
VL+
VL–
PT801
MAIN POWER
TRANSFORMER
F805
4A/125V
+B6
D803
M12
IC851,IC852,IC853:
VOLTAGE REGULATOR
IC855
+B3
KTC2026
Q905
KIA7812AP
KIA7810AP
D905
AC120 V, 60 Hz
–VF
VF1
VF2
Q801
+5V
KIA7805AP
IC852
+B4
+B7
+B1
–B1
–B2
+B6
+B3
+B5
+B4
Q705
R
L
T
B
+B5
RX701
SENSOR
REMOTE
D804
D802
RL914
JK701
HEADPHONES
M901
FAN
MOTOR
SO901
SPEAKER
TERMINAL
M
Q906
Q709
Q904
Q901
Q903
Q902
D906
Q602
Q601
IC853
IC851
POWER
AMP.
STK41242
IC901
A+10V
LD+7V
2A/125V
F803
2A /125V
F804
4A/125V
F801
4A/125V
F802
VH+
VH–
L-OUT
R-OUT
CLK
IX0553AW
4.194304 MHz
RESET
MAIN
AC
POWER
SUPPLY
CORD
REC/PLAY
VLOAD
RESET
GROUND
+B5
+B5
+B5
+B5
VDD
VDD
VDD
SP.
DET.
-
CE
DI
DO
XL700
-
BIAS
T1/T2
AVDD
SW721-SW724
SW711-SW718
SW701-SW707
KEY
SECTION
TO
CD
T.F.
MICROCOMPUTER
SYSTEM
CONTROL
IC701
DISPLAY
FL701
45
14
19
13
1
12
5
79
91
86
92
85
70
38
37
34
35
36
31
33
29
8
7
6
1
11
7
8
2
5
14
18
93
1 2 4 5 6
3
2
1
100
45
11 12 13
10
15
16
1 7
20 21 22 23 24
57
46
44
39
41
27
56
48 47
49
50
51
52
53
54
55
40
42
43
-
-
-
VOLTAGE REGULATOR