Sony CFD-G505 Service Manual ▷ View online
21
21
CFD-G505
CFD-G505
• Circuit Boards Location
BATTERY2 board
VOL KEY board
POWER board
TRANS board
BATTERY1 board
LCD board
LED1 board
LED2 board
LED3 board
LED4 board
TUNER KEY board
CD KEY board
H/P board
TC board
TUNER board
MAIN board
CD board
• Waveforms
– CD Board – (Mode: PLAY)
– CD Board – (Mode: PLAY)
– TC Board –
– TUNER Board –
– MAIN Board –
1
IC701
4
(RF)
0.85
±
0.2 Vp-p
500 mV/DIV, 0.5
µ
s/DIV
2
IC701
qd
(FE)
100 mV/DIV, 20
µ
s/DIV
3
IC701
qg
(TE)
100 mV/DIV, 20
µ
s/DIV
4
IC701
rk
(XOUT)
16.93 MHz
3.2 Vp-p
1 V/DIV, 0.05
µ
s/DIV
1.8 V
Approx. 100 mVp-p
1.8 V
Approx. 100 mVp-p
1
IC2
w;
(XOUT)
75 kHz
1.5 Vp-p
0.5 V/DIV, 5
µ
s/DIV
1
Q301
C
(REC)
19.5
µ
sec
4 Vp-p
0.1 V/DIV, 5
µ
s/DIV
2
T301, HRP301 (YEL)
19.5
µ
sec
36 Vp-p
10 V/DIV, 5
µ
s/DIV
4
IC801
ua
(XT2)
30.5
µ
s
3.6 Vp-p
1 V/DIV, 10
µ
s/DIV
5
IC801
ug
(X2)
238 ns
3.7 Vp-p
1 V/DIV, 100 ns/DIV
22
22
CFD-G505
CFD-G505
6-1. BLOCK DIAGRAM – 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
(Page 23)
(Page 23)
L OUT
L-CH
R-CH
R-CH
RECORD/PLAYBACK
HEAD
ERASE HEAD
HRP301
HE301
R-CH
R-CH
L-CH
REC BIAS
OSC
Q301
REC/PB PRE AMP
IC301
24
22
5
4
15
21
REC
TAPE
L.L IN
RADIO
PB AMP
26dB
L.LD
TAPE
TAPE
T301
12
MUTE
Q171
AMP
Q321
INV
Q953
SW
Q951
AGC
Q351
3
8
STBY
POWER AMP
IC371
R-CH
R-CH
J391
SPEAKER (L-CH)
SPEAKER (R-CH)
S409-416
LED DRIVE
Q809
64
V-CLOCK
65
V-DATA
34
A-MUTE
67
TAPE
39
REC
IC801(2/2)
SYSTEM CONTROLLER
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
M971
CAPSTAN/REEL
MOTOR
S972
MOTOR
S971
PLAY
TUNER/CD
SECTION
(Page 23)
(Page 23)
6
REF
66
P-CON
KEY-1
43
WP
50
KEY-2
44
W-LED2
79
LED DRIVE
Q810
W-LED1
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
D326 D320
D325
D324
D351
D352
VDD(SW)
VDD(SW)
12
13
3
10
11
5
8
STBY
POWER AMP
IC351
30
WOOFER ON/OFF
31
WOOFER 1/2
LCD891
LIQUID CRYSTAL
DISPLAY
27
10
SEG17
SEG0
9
6
COM3
COM0
SP191
SP291
SP393
WOOFER
T901
RECT
D901-904
+6V REG
Q954
+9V REG
Q971
+6V REG
Q972
+3.3V REG
Q956
CD/RADIO +6V
CD +3.3V
VDD(SW)
POWER
SWITCH
Q952
2
3
+3.3V
REG
IC802
2
1
RESET
IC805
µ COM VDD
D807
D806
1
REMOTE
CONTROL
RECEIVER
RECEIVER
IC891
76
RESET
49
REG CHK
D893
AU 6V
Q955
PB
REC
CD 3.3V
LPF
Q322
STANDBY
SWITCH
SWITCH
Q352
GAIN
CONTROL
Q323
D321
D322
D957
D955
D951
D952
D953
D954
FUNCTION
FUNCTION
SWITCH
SWITCH
D401-408
(ILLUMINATION)
VDD(SW)
2
AU +6V
48
RMC
DRY BATTERY
SIZE "D"
(IEC DESIGNATION R20)
8PCS, 12V
POWER AMP +12V
+9V
+9V
J381
LINE IN
OPR/BATT
(AC IN)
CNJ901
L.IN
L.RD
TAPE MECHANISM DECK
23
23
CFD-G505
CFD-G505
6-2. BLOCK DIAGRAM – TUNER/CD SECTION –
: FM
: AM
: CD
• Signal Path
• R-CH is omitted due to same as L-CH.
+
-
R-CE
63
R-CLK
61
R-DATA
62
R-COUNT
60
SYSTEM CONTROLLER
IC801(1/2)
OPTICAL PICK-UP
(KSS-213C)
BLOCK
A
B
C
D
E
F
LD
VREF
VCC
GND
PD
VR
LD POWER
CONTROLLER
CONTROLLER
FOCUS
COIL
TRACKING
COIL
Q701
RF AMP
SYSTEM SERVO PROCESSOR
DIGITAL SIGNAL PROCESSOR
SYSTEM SERVO PROCESSOR
DIGITAL SIGNAL PROCESSOR
IC701
VREF
11
FIN2
8
FIN1
7
TIN1
9
TIN2
10
LD
80
PD
79
SLED/SPINOLE MOTOR DRIVER
TRACKING/FOCUS COIL DRIVER
TRACKING/FOCUS COIL DRIVER
IC702
F+
17
F-
18
T+
12
T-
11
SL+
26
SL-
27
M
M702
SLED
MOTOR
SP+
2
SP-
1
M
M701
SPINDLE
MOTOR
F+
F-
T+
T-
19
9
25
3
SPDO
22
SLDO
23
TDO
20
FDO
21
42
L OUT
45
R OUT
63
DI
MAIN
SECTION
(Page 22)
(Page 22)
R-CH
L OUT
62
CL
61
CE
67
DRF
31
FSEQ
65
WRQ
68
RES
72
CONT1
49
XIN
48
XOUT
S701
LIMIT
IN SW
X701
16.9344MHz
C-DI
54
C-CLK
55
C-CE
56
C-DRF
58
WRQ
52
C-RES
59
40
C-DOOR
S801
19
L1
L3
FERRITE-ROD
ANTENNA
D1
D10
D11
2
24
21
22
20
FM
MIX
FM RF IN
FM RF OUT
FM OSC
AM RF IN
AM OSC
FM
OSC
AM
MIX
AM
OSC
OSC OUT
4
MIX OUT
16
IF
BUFFER
CF2
CF4
7
6
FM IF-IN
AM IF-IN
FM
MPX
FM/AM
BUFFER
FM
DET
AM
DET
15
A
DET OUT
17
MUTE
12
11
R-CH
10
FM/AM FRONT-END
IF AMP,DET,FM MPX
23
5
RADIO 6V
QUAD
VCC1
VCC2
MAIN
SECTION
(Page 22)
(Page 22)
T2
CE
12
11
14
13
14
13
MO/ST
BAND
10
4
2
3
1
20
19
FM/AM PLL
IC2
FM IN
AM IN
VDD
XOUT
XI
CL
DI
DO
IF IN
MO/ST
6V
X1
75kHz
L-CH
RADIO 6V
CT1
L2
D2
RADIO 6V
CT3
RADIO 6V
D3
L4
ANTENNA
FM
TELESCOPIC
IC1
T1
18 LP OUT
16 PD
18
ST IND
8
ST IND
7
BAND
IFOUT
MPX-IN
R-MUTE
57
C-FSEQ
46
SP IN
SL IN
T IN
F IN
B
RADIO 6V
ANT1
64
DO
C-DO
53
7
CONT4
25
MUTE
17 LP IN
L1, CT1
FM
TRACKING
L2
FM
FREQUENCY
COVERAGE
L3, CT3
AM
TRACKING
L4
AM
FREQUENCY
COVERAGE
T1
AM IF
T2
FM IF
Z
PUSH
OPEN/CLOSE
+
-
+
-
24
24
CFD-G505
CFD-G505
6-3. PRINTED WIRING BOARD – CD SECTION –
•
:Uses unleaded solder.
• Semiconductor
Location
Ref. No.
Location
IC701
G-6
IC702
B-7
Q701
D-6
• See page 21 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
E
802
(
)
(SPINDLE)
TP
(RF)
TP
(VREF)
(VREF)
IC701
Q701
IC702
C729
C730
R730
R728
R729
C704
R708
C728
R724
R722
R725
R726
R707
C701
C726
C723
C725
C724
R719
R717
R716
C720
C721
C722
R731
R721
R720
C716
R715
R714
C727
C711
C709
FB701
C736
C734
R709
C705
R710
R701
C703
C731
R706
R727
R712
R723
C708
R741
JC701
R744
C751
JC702
JC703
C743
C744
C745
C742
C754
C755
C741
C707
L706
C717
C739
C738
R732
R742
R735
R704
R733
R702
R734
R703
R746
R743
R705
R736
R747
R738
R711
R713
R737
R718
M702
M701
S701
C732
CNP701
X701
CNP702
JW706
JW707
JW709
JW713
JW714
JW715
JW716
JW717
JW718
JW721
JW722
JW723
JW724
JW725
JW726
JW727
JW728
JW729
C740
C750
C746
C747
JW719
C735
JW720
C733
C706
JW712
JW710
JW702
JW701
JW708
C702
JW703
JW705
JW704
(Page 30)
Click on the first or last page to see other CFD-G505 service manuals if exist.