Sony CMT-M80V / HCD-M80 Service Manual ▷ View online
HCD-M80
17
17
6-2.
BLOCK DIAGRAM – AUDIO/VIDEO CD Section –
PROGRAM ROM
IC508
• SIGNAL PATH
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
DIGITAL FILTER,
D/A CONVERTER
IC504
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL ENCODER
IC505 (2/2)
7
8
VOUTL
VOUTR
1
2
3
DATA
BCK
LRCK
DRADR0 – DRADR10
DRDAT0 – DRDAT15
D0 – D15
D0 – D15
A0 – A10
A0 – A10
74
18
73 72 68
6
7
201
203
204
CPSIG
AUDDTO0
AUDBCK
AUDLRCK
16
MLCK
205
AUDXCLKO
14
13
15
DATA
CLK
LAT
30
29
26
GPIO14
GPIO13
GPIO11
28
GPIO12
CSIG
34 – 37, 39 – 45
49 – 56, 59 – 66
23 – 26, 29 – 34, 22
A0 – A10
12 – 5, 27, 26, 31
D8 – D15
A10 – A17
23, 25, 4, 28, 29, 3, 2, 30
D0 – D7
DQ0 – DQ7
A0 – A9, A18
DQ0 – DQ15
ADDRESS BUS
DATA BUS
D-RAM
IC507
A0 – A10
13 – 15, 17 – 21
WE
24
OE
RAS
CAS
DRCAS
DRRAS
DRWEL
NVOEL
B.P.F.
1
VOUT
10 VIN
5
CONT IN
6
VOUT
1
VIN
5
BGP
8
TINT
B.P.F.
C AMP
IC303
Y AMP
IC304
LOW-PASS
FILER
IC102
IC102
70 76 77 78
DRDQM1
DRDQM0
DRBS
DRCK
13 14
GPIO1
GPIO0
15 19 18 16
GPIO3
GPIO4
GPIO5
GPIO2
• R-ch is omitted due to same as L-ch.
G
(Page 19)
CD-L
D
(Page 16)
DATA, CLK, LD
F
(Page 16)
SHARPNESS,
HUE
R-CH
2, 4, 5, 7, 8, 10, 11, 13, 42,
44, 45, 47, 48, 50, 51, 53
16
17
20
CLK
BA0
LDQM
38
15
UDQM
39
92
90
87
123
L CDDATA
L CDBCK
L CDLRCK
L CDC2PO
L CDC2PO
110
103
108
112
L DDAT
L DCLK
L XLAT
L SENS
L SENS
95
125
99
115
L SCOR
L SQSO
SQCK
SCLK
SCLK
132
120
106
L GFS
FOK
XRST
DATA
BCK
LRCK
C2PO
B
(Page 16)
DATA, BCK,
LRCK, C2PO
LRCK, C2PO
DATA
CLOK
XLAT
SENS
SCOR
SQSO
SQCK
SCLK
GFS
FOK
XRST
C
(Page 16)
DATA, CLOK, XLAT, SENS,
SCOR, SQSO, SQCK,
SCLK, GFS, FOK, XRST
SCOR, SQSO, SQCK,
SCLK, GFS, FOK, XRST
24 GPIO9
CONT
A
(Page 16)
81 SYSRST
SYSRST
E
(Page 16)
+3.3V
REGULATOR
Q581
CD +5V
5
VDD
6
VCC
DATA
CLK
LD
SDO
SDI
SCK
SCS
SOK
SRQ
3
VRF
VIDEO
LEVEL
LEVEL
RV501
C SYNC BUFFER
IC302
VIDEO AMP
IC307
Y SYNC BUFFER
Q302
SYNC BUFFER
Q301
SYNC
SEPARATOR
IC301
+
8
BUF
IN
IN
1
BUF
OUT
6
OUT
5
OUTSAG
3
IN
2
STBY
VIDEO MUTING
CONTROL SWITCH
Q370
J700
VIDEO OUT
HUE
SHARPNESS
(Page 19)
V MUTE
H
(Page 19)
SDO, SDI, SCK,
SCS, SOK, SRQ
J
207
206
CLKB
CLKA
X502
27MHz
HCD-M80
18
18
6-3.
BLOCK DIAGRAM – TUNER/TAPE DECK Section –
MUTING
CONTROL SWITCH
Q404, 405
11
ALC
TU1
TUNER UNIT
FM75Ω
ANENNA
AM
4
3
5
9
8
10
7
57
23
27
22
25
80
59
CAPSTAN/REEL
MOTOR DRIVE
Q341, 343
58
38
90
91
TRIGGER
PLUNGER DRIVE
Q342, 344
M
M
(TAPE DECK BLOCK)
(CAPSTAN/REEL)
SIGNAL PATH
: TUNER (FM/AM)
: TAPE PLAY
: REC
FM ANT
ANT GND
ANT GND
AM ANT
L-CH
R-CH
R-CH
TUNED
DI
CK
CE
DO
SYSTEM CONTROLLER
IC601 (2/4)
TUNED
ST-DOUT
ST-CLK
ST-CE
ST-DIN
ALC
43
TC-RELAY
CAPM-CNT1
B TRG
B PLAY
B SHUT
B HALF/REC
R-CH : R-ch is omitted due to same as L-ch.
41
REC-MUTE
39
TC-MUTE
34
BIN (L)
15
13
14
28
EQ-OUT (L)
26
PB-OUT
(L)
TAI (L)
MUTE
REC/PB EQ AMP, ALC
IC401
A/B
MUTE
REC-MUTE
24
23
REC-OUT
(L)
(L)
REC-IN
(L)
ALC
(L)
21
R-CH
R-CH
EQ
ALC
BIAS OSC
T401
REC BIAS
SWITCH
Q402, 403
COM +8V
BIAS OSC
Q401
REC BIAS
(L)
MUTING
Q100, 101
RV101
REC BIAS
(R)
RV201
L-CH
R-CH
ERASE
R-CH
HRPE901
(RECORD/PLAYBACK/ERASE)
R-CH
R-CH
T101
BIAS
TRAP
K
TU-L
(Page 19)
L
TC-L
(Page 19)
M
REC-L
(Page 19)
27
HCD-M80
19
19
6-4.
BLOCK DIAGRAM – MAIN Section –
RV500
MIC LEVEL
: TAPE PLAY
: REC
: CD PLAY
: TUNER (FM/AM)
87
88
86
89
STK MUTE
50
HEAD PHONE DETECT
81
LINE-MUTE
K
TU-L
(Page 18)
L
TC-L
(Page 18)
G
CD-L
(Page 17)
M
REC-L
(Page 18)
INPUT SELECT SWITCH,
ELECTRICAL VOLUME,
TONE CONTROL
IC323
POWER ON
MUTING
Q330
MUTING
CONTROL SWITCH
Q312, 313
3
COM +12V
D309
MUTING
Q408, 409
MUTING
Q100
4
10
14
+
+
–
–
SJ301
L
R
SPEAKER
IMPEDANCE
USE 6 – 16Ω
R-CH
R-CH
J501
HEADPHONE AMP
IC324
MOS GAIN &
LEVEL SHIFT
LEVEL SHIFT
ING STAGE
MOS
OUTPUT
STAGE
SHORT
CIRCUIT
PROTECTION
IN+
IN+
MUT
MUT
STANDBY/MUTE
MUTE
STBY
POWER AMP
IC101
R-CH
OUT
R-CH
R-CH
DC DETECT
Q310, 311
PHONES
100
DC-DETECT
R-CH
INPUT
SELECT
SWITCH
L4
L3
L1
L2
11
12
14
13
9
LIN
10
LSELO
5
LOUT
VOLUME
CONTROL
TONE
CONTROL
30
1
DI
CL
2
CE
CPU
INTERFACE
R-CH
SJ302
L
R
AUDIO IN
MD (VIDEO)
9
R-CH
AMP-DATA
AMP-CLK
AMP-CE
84
STK-POWER
SYSTEM CONTROLLER
IC601 (3/4)
8
10
4
9
11
3
INVERTER
IC603 (1/2)
12
2
13
1
INVERTER
IC603 (2/2)
SIGNAL PATH
: MD (VIDEO)
R-CH : R-ch is omitted due to same as L-ch.
: MIC INPUT
MIC
J502
MIC AMP
IC525 (1/2)
MIC AMP
IC525 (2/2)
R-CH
MUTING
Q604
MUTING CONTROL
SWITCH
Q606, 607
V MUTE
(Page 17)
H
(Page 17)
33 VIDEO MUTE
66 CD MUTE
35
36 SYSIN
SYSOUT
37
19
56
54 SYSRQ
SYSOK
SYSCS
SYSCLK
SDO
SDI
SCK
SCS
SOK
SRQ
J
SDO, SDI, SCK,
SCS, SOK, SRQ
D313
HCD-M80
20
20
6-5.
BLOCK DIAGRAM – KEY CONTROL/POWER SUPPLY Section –
97, 95, 94
KEY0 – KEY2
LIQUID CRYSTAL
DISPLAY
LCD502
SIRCS
4
12
RESET
D500
D604
SYSTEM CONTROLLER
IC601 (4/4)
D514
(STANDBY)
LED DRIVE
Q505
LED5
47
LED1
42
LED DRIVE
Q503
LED3
45
LED DRIVE
Q502
TUNER
D502
LED7
49
LED DRIVE
Q501
CD
D501
LED6
48
LED DRIVE
Q506
82
STBY-RELAY
RECT
D906 – 909
RECT
D902 – 905
+4V
REGULATOR
IC904
AMP +22.5V
AMP – 22.5V
D921
RECT
D910 – 913
D506 – 509
(LCD BACK LIGHT)
TU +9.5V
COM +8V
COM +12V
40
TUNER ON
65
CD-POWER
U-COM +3.3V
+3.3V
LCD B+
T902
MAIN POWER
TRANSFORMER
T901
SUB POWER
TRANSFORMER
RY901
(Singapore, Saudi Arabia)
(Thai)
(AC IN)
VOLTAGE
SELECTOR
S901
BACKUP +4V
S513, 514, 517 – 521,
S523 – 528, 530, 531,
S523 – 528, 530, 531,
S587, 590, 593, 594
10
11
X601
32.768KHz
15
13
X602
16MHz
XCIN
XCOUT
XIN
XOUT
POWER ON/OFF
RELAY DRIVE
Q902
+5V
+8V
REGULATOR
IC304
LCD STB 6
LCD RS 3
LCD DATA 5
LCD SCK 7
20
AC-CUT
REMOTE CONTROL
RECEIVER
IC502
D920, 922
D622
RESET SWITCH
Q618
B+ SWITCH
Q635, 637
LED B+
+14V
+5V
REGULATOR
IC605
TC +3.3V
+3.3V
REGULATOR
Q309
M+7V
+8V
REGULATOR
IC901
RECT
D914 – 917
74
POWER KEY
S503
51
BACK LIGHT
B+ SWITCH
Q601
B+ SWITCH
Q507, 508
LED DRIVE
Q504
TAPE
D504
LED4
46
CD SYNCHRO
D505
DSG
D503
D919
STANDBY
SWITCH
Q602, 603
CD +5V
+12V
REGULATOR
Q355
+12V
MIC AMP B+
+12V
REGULATOR
IC305
+5V
REGULATOR
IC606
+9.5V
REGULATOR
Q305
CD ON
SWITCH
Q307, 308
CD +3.3V
+3.3V
REGULATOR
IC202
CD +2.5V
+2.5V
REGULATOR
IC201
CD +4.5V
+4.5V
REGULATOR
Q201
+9.5V
REGULATOR
Q301
RESET SIGNAL
GENERATOR
IC602
RESET SWITCH
Q619
TUNER ON
SWITCH
Q303, 304
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