Main, Disp Section - Sony MCE-K700 Service Manual

– MAIN, DISP SECTION –
IC104 CXD2721Q
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
N.C 81
N.C 82
VSS6 83
VDD5 84
TST0 85
TST1 86
TST2 87
TST3 88
VSS7 89
XS24 90
SO 91
SI 92
SERIAL
DATA
BCK 93
INTERFACE
LRCK 94
XMST 95
VSS8 96
VDD6 97
SCK 98
MICRO
READY 99
COMPUTER
TRDT 100
INTERFACE
1 2 3 4 5 6 7 8 9 10 11 12 13
IC301 L78LR05D-MA
INPUT 1
START
Vref PROTECTOR
UP
Cd 2 RESET
IC303 LB1641
T.S.D
MOTOR
DRIVE
FWD/REV/STOP
CONTROL LOGIC
1 2 3 4
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128K BIT DELAY RAM
DIGITAL
SIGNAL
PROCESSOR
CLOCK GENERATOR
/TIMING CIRCUIT
–
+
14 15 16 17 18 19 20 21 22 23
5 OUTPUT
ERROR
AMP
RESET
4
OUT
VO
DETECTOR
3 GND
O.C.P
MOTOR
DRIVE
5 6 7 8 9 10
— 51 —
–
+
–
+
D/A
CONVERTER 1
D/A
CONVERTER 2
–
+
A/D
CONVERTER 1
A/D
CONVERTER 2
A/D
CONVERTER 3
–
+
24 25 26 27 28 29 30
IC302 M5290P-16
RST DEL
8 7
DELAY
CIRCUIT
ON/OFF
CONTROL
9 10 11
GND SW REF
50 AVD1
49 LO1
48 N.C
47 AIN1
46 AVS1
45 AOUT1
44 N.C
43 AVS4
42 N.C
41 AVD4
40 AO1P
39 AO1N
38 VSS9
37
XTLI
36
XTLO
35 VDD7
34
AO2P
33 AO2N
32 AVD5
31 N.C
BAL VED FB– EO CO VE
6 5 4 3 2 1
CURRENT
LIMITER
VOLTAGE
REFERENCE
OVERHEAT CURRENT
PROTECTION LIMITER
12 13 14 15 16
VCO FB+ CO EO VC