Read Sony CFD-G55 Service Manual online
18
18
CFD-G55
5-2. Block Diagrams
MAIN Section
: FM
: CD
• Signal Path
• R-CH is omitted due to same as L-CH.
: PB
: REC
: LINE IN
20
B
A
TUNER/CD
SECTION
L OUT
L-CH
R-CH
R-CH
HEAD
R-CH
R-CH
(MAGNET)
L-CH
BIAS
OSC
Q301
PRE AMP
IC301
24
22
5
4
15
21
REC
TAPE
L IN
RADIO
PB AMP
26dB
L
TAPE
TAPE
T301
12
MUTE
Q171
AMP
Q321
INV
Q953
INV
Q953
SW
Q951
BASS AGC
Q351
3
8
STBY
POWER AMP
IC371
R-CH
R-CH
J391
SPEAKER (L-CH)
SPEAKER (R-CH)
FUNCTION
SWITCH
S409-416
LED DRIVE
Q810
64
V-CLOCK
65
V-DATA
34
A-MUTE
67
TAPE
39
REC
IC801(2/2)
SYSTEM CONTROL
70
71
74
75
X802
32.768kHz
X801
4.19MHz
XT1
XT2
X1
X2
S301
REC PB
REC AMP
AMP
BUFFER
7dB
17
LINE
51
TC-PLAY
M
+9V
M321
CAPSTAN/REEL
MOTOR
S322
MOTOR
S321
PLAY
TUNER/CD
SECTION
6
REF
66
P-CON
KEY-1
43
WP
50
KEY-2
44
W-LED1
79
LED DRIVE
Q809
W-LED2
80
S401-408
SCL
35
SDA
36
6
5
EEP ROM
IC803
77
CD
VIN1
1
A1
5
B1
7
SEL1
4
SOUND/VOLUME
IC321
SI
14
SC
13
17
OUT1
AGC
Q354
VDD(SW)
VDD(SW)
12
13
3
10
11
5
8
STBY
WOOFER
POWER AMP
IC351
30
WOOFER ON/OFF
31
WOOFER 1/2
LCD891
LIQUID CRYSTAL
DISPLAY PANEL
27
10
SEG17
SEG0
9
6
COM3
COM0
SP391
SP392
SP393
WOOFER
T901
RECT
D901-904
+6V REG
Q954
+9V REG
Q971
CD +6V REG
Q972
+3.3V REG
Q956
CD/RADIO +6V
CD +3.3V
VDD(SW)
CND,MY,SP,EA
EXCEPT
CND,MY,SP,EA
CND,MY,SP,EA
EA
EA
POWER
SWITCH
Q952
2
3
+3.3V
REG
IC802
S901
VOLTAGE SELECTOR
2
1
RESET
IC805
µ
COM VDD
D807
D806
1
REMOTE
CONTROL
IC891
76
RESET
49
REG CHK
D893
AUDIO 6V
Q955
PB
REC
CD 3.3V
LPF
Q322
GAIN
CONTROL
Q323
FUNCTION
SWITCH
FUNCTION
SWITCH
KEY-3
45
TEST-1
D401
LED DRIVE
Q802
LED CONT
78
D891
VDD(SW)
2
AU +6V
48
RMC
DRY BATTERY
SIZE "D"
(IEC DESIGNATION R20)
8PCS, 12V
POWER AMP +12V
+9V
J381
LINE IN
POWER DRIVE
WOOFER
BACK LIGHT
OPR/BATT
(AC IN)
CNJ901
Ver 1.1 2002.05
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