Read Sony CX-LFA880 Service Manual online
11
11
CX-LFA880
CX-LFA880
1-1. BLOCK DIAGRAM — AUDIO SECTION —
PANEL
POWER
SECTION
A
MPEG2
SECTION
B
: DVD(AUDIO)
• Signal Path
• R-CH is omitted due to same as L-CH
: AUDIO
: TUNER
: MD IN
: REC(TAPE)
: MIC
: PB(TAPE)
JK201
R-CH
L-CH
L
R
MD IN
MIC
ANTENNA
AM
FM 75
Ω
COAXIAL
L
R
SPEAKER
IMPEDANCE
USE 6
Ω
PHONES
J202
R-CH
D OUT
D IN
CL
CE
TUNED
MUTE
STEREO
RDDA
ROCK
MIC AMP
5
7
IC402(1/2)
Q401,402
MIC MUTE
Q403-405
BUFFER
MIC AMP
2
1
IC402(2/2)
MIC IN
SCK
DISK
31
3
SLT
4
SDI
5
23
IC401
ECHO
ECHO
TUCE
SDAT/ROMDA
12
TUND
13
RMUTE
1
STE
11
RDDA
21
RDCK
46
RMUT
2
RPHD
3
BIAS
4
TUCK
20
TUDI
18
TUDO
19
E-CLK
57
E-STB
52
E-DATA
58
53
SCK/ROM CK 54
AMUTE 59
TSOL 5
TMOT 6
TCNT 7
REPT 31
HDPN 30
IC501(1/2)
SYSTEM CONTROLLER
LOUT
SDA
21
SCL
22
BASSOL
7
LINT1
31
LINT3
29
LINT2
30
IN4
28
VARL
6
2
3
25
RECOUTL 27
IC101
SOUND PROCESSOR
SDA
5
SCL
Q105
MUTE CONT
Q102
MUTE
Q199
INVERTER
Q313
+10V REG
Q212
Q213
Q213
BIAS
USC
Q202,207
REC/PB SWITCH
Q209
MUTE
Q201,204,206
REC/PB SWITCH
Q653,654
MOTOR DRIVER
Q651,652
SOL DRIVER
Q215
REC DETECT
Q210
MUTE
16
+VM
+10V
+VDD
Q308
PROTECT
SWITCH
Q350-352
FAN CONT
FAN
Q303,304,354
DC PROTECT
Q104,301
OVER LOAD
DETECT
Q319
MUTE
SWITCH
Q314,317
CURRENT
DETECT
Q353,355
FAN CURRENT
DETECT
6
IC503
EPROM
RECO
14
CH I/A
REC IN
PREO
1
16
3
IC201
TAPE REC/PB AMP
STBY
13
CH1
IN
IN
CH1
OUT+
11
4
IC103
POWER AMP
IC102
MIXER AMP
J206
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
L-CH
REC/PB
HEAD
R-CH
R-CH
PACK
RECF
RECR
HDPLY
TCNT
MOT
SOL
TUNER UNIT
TAPE
MECHANISM
DECK
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