Sony CMT-GB3 / HCD-GB3 Service Manual ▷ View online
21
21
HCD-GB3
HCD-GB3
• Circuit Boards Location
REG board
AMP board
MAIN board
JACK board
PANEL board
POWER board
BD83S board
• Waveforms
– MAIN Board –
– MAIN Board –
– BD83S Board –
– PANEL Board ––
1
IC801
w;
(XOUT)
13.3
µ
s
1.5 Vp-p
500m V/DIV, 4
µ
s/DIV
2
IC701
qd
(X0A/P90)
30.5
µ
s
2.2 Vp-p
0.5 V/DIV, 10
µ
s/DIV
3
IC701
od
(X0)
239 ns
3.3 Vp-p
1 V/DIV, 100 ns/DIV
4
IC201
u;
(RFACO)
(CD PLAY mode)
200 mV/DIV, 500 ns/DIV
5
IC201
<z/,
(XTAO)
(CD PLAY mode)
1 V/DIV, 20 ns/DIV
6
IC201
1
(LRCK)
(CD PLAY mode)
1 V/DIV, 10
µ
s/DIV
7
IC201
5
(BCK)
(CD PLAY mode)
1 V/DIV, 200 ns/DIV
0.5 to 1.3 Vp-p
59.1 ns
3.3 Vp-p
22.7
µ
s
3.3 Vp-p
472 ns
3.4 Vp-p
22
22
HCD-GB3
HCD-GB3
7-1. BLOCK DIAGRAM — BD/DRIVER SECTION —
A
B
MAIN
SECTION
(Page 24)
MAIN
SECTION
(Page 24)
: CD
• Signal Path
Q670,671
Q669,672
Q665,668
Q666,667
M1
+
-
+
-
M1+
M1-
M2+
M2-
M
P67/AN7/INT2
P35/IC1
P74/SDA/SC2
P30/SO3
P31/SC3
P75/SCL/SO2
P37/OCU1
P41/LED1
P43/LED3
P51/TIN1
P52/TIN2/PPGO
P53/PPG1
P42/LED2
P50/TINO
P54/SI0
P55/SC0
P33/TMCK
P56/SO0
P26
P76
SW3
SW1
SW7(CHACK)
SW8(OPEN)
SW2
SW6(CLOSE)
SW5(STOCK)
OPTICAL PICK-UP
BLOCK
(KSM-213DCP/C2NP)
AUTOMATIC
POWER
CONTROL
Q321
+1.7V
+3.3V
LD
GND
FOCUS
COIL
F+
F
T+
T
SP+
SP
SL+
SL
TRACKING
COIL
IC402
S201
(LIMIT)
X201
16.9344MHz
+3.3V
SL/SP MOTOR
DRIVER
MOTOR
DRIVE
IC201
RF AMP,DSP,MP3
12
6
11
13
14
VR
PD
16
15
18
17
4
23
2
20
MUTE
CH2OUTF
CH1FIN
CH1RIN
CH2FIN
CH3FIN
OPIN+
CH2OUTR
CH1OUTR
CH1OUTF
CH4OUTF
CH4OUTR
CH3OUTR
CH3OUTF
M
M
M401
(SPINDLE)
M402
(SLED)
VCC
VC
A
B
C
D
E
F
DETECTOR
A
B
E
50
F
51
LD
66
PD
67
TFDR
43
SSTP
39
FFDR
45
SFDR
41
MPD
M-MUTE
38
XTACN
XRST
DATA
XLAT
CLOCK
117
AOUT2
112
AOUT1
108 XTAO
109 XTAI
57
58
C
59
D
60
SENS
XTACN
XRST
DATA
XLAT
CLOCK
SENS
13
XLAT-MP3
REQ-MP3
REQ-MP3
CD-L
CD-R
XLAT-MP3
TRDR
44
22
CH3RIN
SRDR
42
CH2RIN
FRDR
46
5
3.3V
+1.8V
IC203
CD MECHANISM DECK
BLOCK
SYSTEM CONTROLLER
IC701
(1/2)
7
3
1
ACK-MP3
ACK-MP3
12
15
7
89
16
11
20
26
8
DATA2
DATA-MP3
90
CLK2
CLK-MP3
10
IREQ-MP3
IREQ-MP3
SCOR
SCOR
+1.8
REG
REG
43
10
49
5
6
50
12
28
27
26
20
25
19
18
29
30
8
31
3
34
14
FOCUS/TRUCKING
COIL DRIVER
MOTOR
DRIVE
M2
M
MOTOR
DRIVE
MOTOR
DRIVE
Q661-664
VM9V
CD
MOTOR
CONTROL
P36/OCU0
11
23
23
HCD-GB3
HCD-GB3
7-2. BLOCK DIAGRAM — TUNER SECTION —
MAIN
SECTION
(Page 24)
C
: TUNER(FM)
: TUNER(AM)
• Signal Path
5
11
25
7
1
31
8
3
26
27
28
18
16
17
15
19
20
AM RF-IN
REG
AM-OSC
36 FM RF-IN
34 FM RF-OUT
FM-OSC
32
FM/AM
ANTENNA
L851
D851
L852
AM OSC
L804
FM RF
D802
D803
VT
L805
FM OSC
CF802
10.7MHz
10.7MHz
CF801
L803
PD
LP-IN
LP-OUT
DO
DI
CL
CE
X801
75kHz
XIN
XOUT
AM-MIX
FM-MIX
FM-DET
AGC
AM IF-IN
FM IF-IN
12
13
L-OUT
R-OUT
IC801
AM/FM IF AMP,
MIX, MPX, DET, OSC
FM/AM PLL
TU-DO
TU-DI
TU-CE
TU-CLK
TU-ANSD
TUNER
R-CH
R-CH
TUNER
L-CH
L-CH
CNP802
3
1
FM FREQUENCY
COVERAGE
AM FREQUENCY
COVERAGE
AM TRACKING
FM DETECTOR
FM TRACKING
CF803
450kHz
TU-DI
TU-CE
TU-DO
TU-ANSD
VM+9V
VM9V
VM9V
+3V
+5V
TU-CLK
L806
Q801
Q802
+3V
REG
+5V
REG
Q803
FM MIX
AMP
2
24
24
HCD-GB3
HCD-GB3
7-3. BLOCK DIAGRAM — MAIN SECTION —
A
BD/DRIVER
SECTION
(Page 22)
TUNER
SECTION
(Page 23)
(Page 23)
C
B
BD/DRIVER
SECTION
(Page 22)
(Page 22)
: TUNER(FM)
: TUNER(AM)
: CD
• Signal Path
: AUX
: PB (TAPE)
: REC (TAPE)
• R-CH is omitted due to same as L-CH.
BIAS
OSC
Q507,508
Q501,502
REC/PB
HEAD
BLOCK
TAPE MECHANISM DECK
V2/P82
V1/P81
V0/P80
SYSTEM CONTROLLER
IC701(2/2)
P57/SI1
ENCODER
AUDIO IN
J105
FUCTION
KEY
SW
REMOTE
CONTROL
RECEIVER
IC703
SW703,704,706,709,710,719,721
SW711-716,SW708,720
SW701,702,705,722-724
L-CH
R-CH
R-CH
TU-DO
TU-DI
TU-CLK
TU-ANSD
TU-CE
R-CH
P63/AN3
P71/AN9/SC1
39
46
55
56
57
33
L501
SW501(1/2)
(REC/PB)
(REC/PB)
+4V
SW501(2/2)
BIAS OSC
AMP-ON
VM9V
P64/AN4
40
X1A
14
X0A
13
X701
32.768kHz
X0
93
X1
92
X702
4.19MHz
9
P34/IC0
FUCTION
KEY
FUCTION
KEY
38
41
1
DECODER
IC702
21
P44/LED4
3
22
P45/LED5/TOT0
4
15
16
23
P46/LED6/TOT1
DATA
CLK
LCK
5
11
M1+
12
M1-
13
M2-
14
M2+
M1+
M1-
M2-
M2+
RESET
SWITCH
Q704
54 RSTX
RESET
Q705,706
42
D051,052
RELAY
DRIVE
AC
IN
Q102
S001
E2
37 P61/AN1
P62/AN2
P65/AN5/INT0
P47/LED7/TOT2
P66/AN6/INT1
VM+9V
PB/REC EQ AMP,
FUNCTION CONTROLLER
IC401
IC402
LEVEL
DET
DET
D510
R-CH
A1
19
18
OUT 1
SEL OUT 1
B1
21
PB1P
2
6
C1
23
13
SD
28
REC 10
R-CH
R-CH
L-CH
P27
45
POWER
AMP
SEG0
SEG31
59
62
COM0
COM3
DIM0
DIM1
6
10
LED1
LED5
LIQUID CRYSTAL
DISPLAY
LCD702
Q244
Q135
Q201
Q243
Q242
Q241
Q131-134,
Q138
µCON VCC
µCON AVCC
36
P60/ANO
P70/AN8/INT3
LINE
FILTER
VOLTAGE
SELECTOR
L001
VM+9V
6
1
IC202
2
P25
5
D702
+9V
REG
IC101
+VP
-VP
1
3
D107-110
D191,192
Q151-154
D111,113
+3.3V
REG
Q191
Q192
AVDD
( +3.3V)
DVDD
( +3.3V)
+3.3V
REG
D156
D154
Q193
DETECTION
VM+9V
POWER
MONITOR
Q121,122
+3.6V
REG
Q701-703
1
P24
67
63
64
64
89
94
100
.
.
.
.
17
P40/LED0
24
SW699
LED702
LED
DRIVE
Q707,709,710
LED701,709
(BACK LIGHT)
(STANDBY)
LED703-707
(VOLUME)
J102
PHONES
R-CH
R-CH
R-CH
L
R
R-CH
J101
SPEAKER
R-CH
CD-R
CD-L
P-SW
M-SW
+7V
PT001
POWER
(MAIN)
TRANSFORMER
PT002
POWER
(SUB)
TRANSFORMER
4
VOLUME
ENCODER
VOLUME
48 P73/AN11/SI2
SW700
AMP
CONTROL
VOLTAGE
SHIFT
HP
MUTE
MUTE
RELAY
CONTROL
OVERLOAD
AMP
PROTECT
PROTECT
THERMAL
DET
PROTECT
DET
DET
DET
M
RY002
VM+9V
FAN
CONTROL
Q901-Q903
M901
FAN MOTOR
M
RY131
TH241
ERASE
D901
AMP-ON
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