Main Section - Sony CX-LFA660 Service Manual

Q Q
— MAIN SECTION —
3 7 6 3 1 5 1 5 0
J601
L
MD
R R-CH
TUNER UNIT
+10V VCC
L-CH
R-CH R-CH
TU-DO
TU-DI
TU-CL
TU-CE
TUNED
STEREO
TU-MUTE
FM SOUT
RDS DATA
RDS INT
DECK
L-CH
REC/PB
HEAD
R-CH
R-CH
R-CH
T301
REC BIAS
ERASE
HEAD
T E
L 1 3 9 4 2 2 9 6 5 1 3
MECHA BLOCK
SW1
PLAY
SW2
R REC
SW3
F REC
SW4
Q804,805
PACK
+SOL
SW5
PEND
Q806,807
MOTOR
M1
DECK
MOTOR
AOUT1
B
AOUT2 R-CH
BD SECTION
w w w
CD OPEN/CLOSE
TRY
MOTOR
OPEN
CLOSE
CX-LFA660/LFA770
PB/REC EQ AMP
IC601
19 AUX L OUT L 18
23 TU L OUT R 16 R-CH
2 TAPE L
CONT
13
21 CD L
REC OUT 28
Q306
PB
SWITCH
Q301,302,305
REC
SWITCH
BIAS
OSC
Q450 32.768kHz
Q451
Q452,453
+VM
10MHz
Q454
SOL
DRIVE
DRIVE
CN701
C1
SCOR
C2
XTCN
C3
XRST
C4
XL-T-CD
C5
CD-DATA
C6
SENS
C7
CD-CLK
BD
C8
A
MP3-DO
SECTION
C9
MP3-DI
C10
MP3-CLK
C11
MP3-CS
C12
MP3-CP
C13
MP3-ACK
C14
MP3-REQ
C15
MP3-RESET
C16
MP3-STB
MOTOR DRIVE
IC501
4 OUT1 FIN 7
x a o
y
2 OUT2 RIN 9
. i
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Q101,103,105
Q107,109
Q111,113,127
PRE
AMP
MUTE
SYSTEM CONTROLLER Q121
Q280-282
IC801
THR DET
86
28 FUNC-DATA O- MUTE
FL801
FLUORESCENT
75 TU-DI
DISPLAY
76 TU-DO
43
74 TU-CLOCK
45
.
73 TU-CE FIL1 -VFL FIL2
47
71 TU TUNED SEG1
50
.
70 TU STELEO SEG16
52
77 TU MUTE
60
23 RDS SIG
31
25 RDS DATA G1
42
26 RDS CLK G12
S801-808
FUCTION
KEY1 20
KEY
S809-815.S817,818
FUCTION
KEY0 27
KEY
79 TA-R/P
12 XT1
X801
S616
13 XT2 VOLUME
VOL ENC 22
ENCODER
15
X IN
D802
X802
Q Q
STAND BY
3 7 6
16 X OUT
STAND-BY LED 87
80 TA-BIAS
68 TA-PLAY SW
D807
VDD1
24 TA-SW
Q803 IC803
D806
RESET
11 RESET
RESET 1 2
SWITCH
81 TA SOL
23
I-POWER-DOWN
67
TA-END SW IC802
REMOTE
78 TA-MOTOR I-RMC 29 1 CONTROL 3
RECEIVER
I-POWER-MONITOR 18
C16
6 MP3-STB
C15
2 MP3-RST
C14
3 MP3-REC
C13
1 MI-ACK
C12
5 O-MI-LP
C11
4 O-MI-CS
C10
100 MI
C9
CD POWER 94
98 MI-DIO-O
C8
99 MI-DIO-I
C7
97 O-CD-CLK
C6
96 O-CD-SENS
C5
95 O-CD-DATA
C4
9 O-CD-XLT
C3 POWER ON 85
8 O-CD-XRST
C2
7 O-CD-XTCN
C1
10 I-CD-SCOR
91 O-TRY-OPN
u 1 6 3
92 O-TRY-CLS
65
I-SW-TROPN
I-SW-TRCLS
66
23 23
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2 4
8 9 9
R-CH
Q117,119
R-CH
POWER
AMP
HEADPHONES
L
R
J201
SPEAKER
R-CH L
R
FAN
Q290-293
FAN
DRIVE
Q060-065
DC
DET
3 1 5 1 5 0 8 9 2
Q123,250,251
+VH -VH
OVER
CURRENT -VH
DET
Q201
Q204,206
Q809
DC
DET
+3.3V DET
+3.9V
REG
-VP
D808 Q203,205
Q202
DC
DET
DET
+VP
VDD2
Q009.010
VCC REG
IC001
+7V
CD-VCC 3
1
REG
Q006,011,012
DVDD
REG
VM
AVDD
MP3VD
IC002
+3.3V
+3.3V
REG REG
Q001-003
Q020,021
FL
-VFL
REG
m
c o
Q810-812
.
+3.9V
+3.9V
REG
CX-LFA660/LFA770
2
8 9 9
J702
• R-CH is omitted due to same as L-CH.
• Signal Path
: TUNER
: CD
: AUX
: PB (TAPE)
: REC (TAPE)
PT252
POWER
TRANSFORMER(MAIN)
D001
+VH
-VH
4 9 8 2 9 9
VF
VF
-VL
D002
+VL
VL
RY251
Q008
RELAY
DRIVE
PT251
POWER
D251-254 TRANSFORMER(SUB)
AC
IN
D257
D256