Sony ICF-CD815 Service Manual ▷ View online
ICF-CD815
21
21
ICF-CD815
R410
R420
R419
R417
R418
R415
R402
R413
R408
R409
R406
R407
R404
R401
R412
R423
R421
TRACK
CLOCK SET
S408
AUDIO IN
S414
L402
L401
1
6
CN401
S404
S405
S402
S403
RADIO ON
u
CD
S401
SNOOZE/
SLEEP OFF
S406
SLEEP
S407
1-868-647-
KEY BOARD
TIME SET
>
+
–
.
x
OFF
ARARM RESET
S413
2
1
1-868-651-
DETECTION BOARD
R444
R443
R442
R437
R441
R439
S411
B
1
3
1-868-644-
ALARM (B) BOARD
R426
R428
R433
R432
R431
R430
S409
A
1
1
3
5
1-868-648-
ALARM (A) BOARD
S751
M752
1
6
M
M
M751
MOTOR BOARD
1-868-652-
TRANS BOARD
(12)
12
C916
T901
POWER
TRANSFORMER
CN901
L904
L903
L901
L902
JW901
1-868-646-
(12)
12
1
4
(12)
12
(12)
12
(12)
12
(12)
12
1
2
MAIN
BOARD
F
CD LID
OPEN/CLOSE
DETECT
S412
(ALARM MODE)
BUZZERTRADIOTCDTOFF
MAIN
BOARD
E
S410
(ALARM MODE)
BUZZERTRADIOTCDTOFF
(LIMIT)
(SLED)
(SPINDLE)
MAIN BOARD
CN751
D
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
MAIN BOARD
CN902
C
TUNER
BOARD
BOARD
B
(AC IN)
6-6.
PRINTED WIRING BOARDS – MOTOR/KEY/TRANS Section –
•
See page 15 for Circuit Boards Location.
:Uses unleaded solder.
(Page 20)
(Page 20)
(Page 20)
(Page 20)
(Page 16)
ICF-CD815
22
22
ICF-CD815
•
Waveforms
– MAIN Board –
2
IC801
ta
(MXO)
(Radio on mode)
1 V/DIV, 5
µ
s/DIV
13.3
µ
s
3 Vp-p
4
IC701
qg
(FEO)
(CD play mode)
20 mV/DIV, 500 ns/DIV
Approx.
30 mVp-p
30 mVp-p
5
IC701
ql
(RFGO)
(CD play mode)
500 mV/DIV, 500 ns/DIV
1.2 Vp-p
3
IC701
qa
(TEO)
(CD play mode)
200 mV/DIV, 500 ns/DIV
Approx.
250 mVp-p
250 mVp-p
1
IC801
ra
(XO)
(CD play mode)
1 V/DIV, 20
n
s/DIV
59.1 ns
2.7 Vp-p
•
IC Block Diagrams
– TUNER Board –
IC1
TA2132BP
– MAIN Board –
IC301
UTC8227 S
FM RF IN
1
RF GND
2
MIX OUT
3
AGC
4
VCC
5
FM IF IN
6
16
AM RF IN
15
FM RF OUT
FM
RF
14
AM/FM SW
11
AFC
10
DET OUT
9
QUAD
13
FM OSC
AM
RF
FM
MIX
FM
OSC
12
AM OSC
AM
OSC
FM/AM
AM
MIX
AGC
FM
IF
AM IF IN
7
GND
8
AM
IF
AM
DET
FM
DET
AF
BUFFER
1
7
8
9
10
11
12
3
4
+
–
+
–
VCC1
CH-1
CH-2
OUTPUT1
BOOT STRAP1
PRE GND
NF1
INPUT1
VCC2
OUTPUT2
BOOT STRAP2
RIPPLE
NF2
INPUT2
2
5
6
IC751 BA5826FP-E2
1
2
3
4
5
6
7
8
9
10
11
12
13
13
14
28
27
26
24
23
22
21
20
19
18
17
16
15
25
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT-DOWN
REGULATOR
BIAS TRAP
LEVEL
SHIFT
MUTE
LEVEL
SHIFT
D.BUFF
D.BUFF
D.BUFF
GND
IN4
IN4'
BIAS
VCC
VCC
IN3'
IN3
VO3(+)
VO3(–)
VO4(–)
VO4(+)
RESETt
OPIN
VO1(–)
REGB
VO1(+)
IN1
RESET
REGOUT
MUTE
GND
IN2'
IN2
VO2(+)
VO2(–)
GND
OPOUT
D.BUFF
D.BUFF
D.BUFF
D.BUFF
D.BUFF
REGULATOR
VCC
VCC
23
ICF-CD815
IC701 TA2157FNG (EL, HZ)
VCC 1
FNI 2
14 VRO
15 FEO
16 FEN
13 GVSW
FPI 3
MDI 6
SEL 8
TEBC 9
LDO 7
17 RFRP
22 RFO
23 RFN
24 GND
TEN 10
TEO 11
RFDC 12
TPI 4
19 RFGO
20 RFGC
21 AGCIN
AUTOMATIC GAIN
CONTROL AMP
18 RFRPIN
PEAK
BOTTOM
+
–
+
–
+
–
+
–
+
–
–
+
–
+
–
+
–
+
–
+
–
+
–
+
×0.5
×2
1
–
TNI 5
+
–
+
–
–
+
×0.5
×2
K
–
PEAK
24
ICF-CD815
•
IC Pin Function Description
MAIN BOARD IC801 TC94A58FG-113 (S, D) (SYSTEM CONTROLLER, DSP)
Pin No.
Pin Name
I/O
Description
1
SEG3
O
Segment drive signal output to the LED indicator element
2
SEG2
O
Segment drive signal output terminal Not used
3
SEG1
O
Segment drive signal output to the LED indicator element
4, 5
KEY1, KEY2
I
Top panel key input terminal (A/D input)
6
ALARM A
I
ALARM A switch panel input terminal (A/D input)
7
ALARM B
I
ALARM A switch panel input terminal (A/D input)
8
MVDD
-
Power supply terminal (+3.3V)
9
MVSS
-
Ground terminal
10
CD OPEN DET
I
CD lid open/close detect switch input terminal "L": CD lid is closed
11
LIMIT SW
I
Limit switch input terminal The optical pick-up is inner position when "L"
12
DRV MUTE
O
Muting on/off control signal output to the motor/coil driver "L": muting on
13
BUZZER/GVSW
O
Buzzer sound drive signal output terminal
Gain selection signal output to the digital servo head amplifier
Gain selection signal output to the digital servo head amplifier
14
CD ON
O
Power on/off control signal output for the CD +3.3V power supply "L": CD power on
15
RADIO ON
O
Power on/off control signal output for the radio +3.3V power supply "L": radio power on
16
50/60Hz AC IN
I
Power failure detection input terminal "L": power failure, "H": power on
17
PDO
O
Phase error signal output terminal of EFM signal and PCLK signal
18
TMAX
O
TMAX detection result output terminal
19
LPFN
I
Amplifier inversion input terminal for low-pass filter of PLL system
20
LPFO
O
Amplifier output terminal for low-pass filter of PLL system
21
VCOF
-
VCO filter terminal
22
AVSS
-
Ground terminal
23
SLCO
O
D/A converter output terminal for data slice level generator
24
RFI
I
RF signal input from the digital servo head amplifier
25
AVDD
-
Power supply terminal (+3.3V)
26
VREF
-
Reference voltage terminal
27
REZI
I
Input terminal for RFRP signal zero cross
28
RFRP
I
RFRP ripple signal input from the digital servo head amplifier
29
FEI
I
Focus error signal input from the digital servo head amplifier
30
SBAD
I
Sub beam addition signal input from the digital servo head amplifier
31
TEI
I
Tracking error signal input from the digital servo head amplifier
32
TEZI
I
Tracking error zero cross input from the digital servo head amplifier
33
FOO
O
Focus equalizer output to the motor/coil driver
34
TRO
O
Tracking equalizer output to the motor/coil driver
35
RFGC
O
RF amplitude adjustment control signal output to the digital servo head amplifier
36
TEBC
O
Tracking balance signal output to the digital servo head amplifier
37
SEL
O
Automatic power control circuit on/off control signal output to the digital servo head amplifier
38
FMO
O
Feed equalizer output to the motor/coil driver
39
DMO
O
Disc equalizer output to the motor/coil driver
40
CVDD
-
Power supply terminal (+3.3V)
41
XO
O
System clock (for CD) output terminal (16.9344 MHz)
42
XI
I
System clock (for CD) input terminal (16.9344 MHz)
43
CVSS
-
Ground terminal
44
DVDD
-
Power supply terminal (+3.3V)
45
RO
O
Audio signal (R-ch) output terminal
46
DVSS
-
Ground terminal
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