Sony CMT-EP707 / HCD-EP707 Service Manual ▷ View online
16
16
HCD-EP707
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM – TUNER Section –
• SIGNAL PATH
: FM
: AM
• R-ch is omitted due
to same as L-ch.
to same as L-ch.
CON202
CON201
24
5
10
22
16
FMRF IN
FMIF
FMRF OUT
13
FM DET
19
DET OUT
1
AMRF IN
3
AM
OSC
OSC
8
AMOSC
BUFFER
20
FMOSC
15
AM/FM SW
7
AM/FMIF
BUFFER
FM
MIX
L OUT
R OUT
17
3
CE
DO
6
4
DI
20
XOUT
1
XIN
CL
5
CF201
9
11
AMIF
7
BO1
12
IFIN
11
IO1
20
AOUT
19
AIN
18
PD
FMIN
AM
MIX
CF202
CF203
B
(Page 18)
A
(Page 18)
FM ANT
75Ω
COAXIAL
AM ANT
BPF
BPF201
IFT202
AM RF
AM RF
IFT201
AM OSC
Q201
VC205
AM FREQUENCY
COVERAGE
IFT201
FM FREQUENCY
COVERAGE
L204
AM TRACKING
IFT202, VC205
FM TRACKING
L203, VC202
VC202
L203
FM RF
FM/AM IF AMP,
MIX, DET, MPX, OSC
IC202
AM IF
IFT205
TU-L
R-CH
TU-R
DA IN
CLOCK
PLL CE
DA OUT
AGC
12
16
AMIN
15
BUFFER
Q202
STATION
STEREO
14
MONO/ST
8
BO2
FM/AM
SELECT SWITCH
Q204
FM OSC BUFFER
Q252
L. P. F
CF204
7.2MHz
FM/AM PLL
IC201
RCLK
RDATA
RCLK
RDAT
MUX
BUFFER
Q208
4
16
2
CF205
4.332MHz
RDS DECODER
IC203
14
13
XI
XO
H
(Page 19)
(AEP, UK)
17
17
HCD-EP707
5-2.
BLOCK DIAGRAM – TAPE DECK Section –
: RECORD
: TAPE PLAY
ALC,
REC/PB AMP
IC208
R-CH
L-CH
HPRE201 (1/2)
(RECORD/PLAYBACK)
R-CH
R-CH
5
1
2
3
(PROTECT (FWD) DETECT)
(PROTECT (REV) DETECT)
(TAPE DETECT)
(CrO
2
DETECT)
REC
MUTING
Q243
PB
MUTING
Q247
REC/PB
SWITCH
Q246
AMP GAIN
CONTROL
Q242
ALC
SWITCH
Q239
ALC
BIAS
TRAP
CAPSTAN/REEL
MOTOR DRIVE
Q217, 218
REC IN
44
AMS
28
REC SW(FWD)
61
REC SW(RVS)
HALF-SW
59
MODE-SW
57
R-CH
BIAS OSC
T201
12V
REC BIAS
SWITCH
Q226, 227
REC/PB
SWITCH
Q223
REC/PB
SWITCH
Q229, 239
REC/PB
SWITCH
Q220, 221
M
(CAPSTAN/REEL)
TRIGGER
PLUNGER DRIVE
Q215, 216
(TRIGGER PLUNGER)
SYSTEM CONTROLLER
IC101 (1/3)
R-CH
R-CH
R-CH
R-CH
R-CH
(HEAD POSITION DETECT)
R-CH
TL-CH
TR-CH
RL-CH
RR-CH
C
(Page 18)
D
(Page 18)
TROUT
6
V.N
1
AMS
IC209
HPRE201 (2/2)
(ERASE)
BUFFER
Q219
TAPE PLAY/REC DETECT
SENSOR
MUTING
Q241
TAPE TYPE
SELECT SWITCH
Q240
62
BIAS OSC
Q228
OUT1
ALC
IN1
NF1
• SIGNAL PATH
• R-ch is omitted due to same as L-ch.
SOL, REC_EN,
MOTOR_ON
E
(Page 18)
REC_EN
SOL
MOTOR_ON
Q225
Q222
Q224
AMP GAIN
CONTROL
Q256
D210
R-CH
18
18
HCD-EP707
5-3.
BLOCK DIAGRAM – MAIN Section –
: RECORD
: AUX IN
: TAPE PLAY
: CD PLAY
: CD PLAY (DIGITAL OUT)
: TUNER
EEPROM DATA
SYSTEM CONTROLLER
IC101 (2/3)
EEPROM
IC102
CD DATA
CD CLK
CD RESET
LIN1
LIN2
D
(Page 17)
TL-CH
TR-CH
D
ATA
X2
X1
X102
4.19MHz
11
23
EEPROM CLK 22
12
MUTE
3
STROBE
8
26
CLK
27
13
41
36
9
CAR M–
CAR M+
21
20
DATA OUT
CLK
18
17
DATA IN
19
PLL-CE
4
SDA
5
SCL
6
16
15
LIN3
LIN4
14
A
(Page 16)
L
R
24
OUT_L
18
LOUT
17
LIN
23
OUT_R
R-CH
6
ROUT
R-CH
R-CH
R-CH
CD-L-IN
CD-R-IN
CD-DIGITAL-
OUT
OUT
CD BLOCK
INPUT SELECT SWITCH,
ELECTRICAL VOLUME
IC207
R-CH
R-CH
R-CH
PHONES
SP801
CD DO
CD CLK
CD \RESET
+
+
–
–
+9V
FUNCTION SELECT
IC204
CLOCK
3
SERIAL
2
STROBE
1
R-CH
B
(Page 16)
TU-R
TU-L
DA IN
CLOCK
DA OUT
STEREO
53
STEREO
TUNER STATION
27
STATION
PLL CE
R-CH
D211
D205
JK201
CAR EX
CAR HM
5
47
48
49
CHANGER
MECHANISM BLOCK
EX
HOME
CDSW5
4
OP/CLS
SLD FW
50
51
52
CDSW4
OPEN/CLOSE
FWD
SLD REW
54
RVS
HEADPHONE
AMP
IC210
MUTING
Q234
MUTING
Q702, 703
SPEAKER
IMPEDANCE
USE 4Ω
POWER AMP
U1
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
CARRIAGE MOTOR DRIVE
IC205
IN1
IN2
OUT1
OUT2
9
1
7
3
MOTOR
DRIVE
R-CH
CON204
L
R
MD IN
DIGITAL OUT
OPTICAL
OPTICAL
TRANSCEIVER
CON219
CAR M–
CAR M+
DAW M–
DAW M+
7
24
DRAWER MOTOR DRIVE
IC206
IN1
IN2
OUT1
OUT2
9
1
7
3
MOTOR
DRIVE
DAW M–
DAW M+
R-CH
RL-CH
RR-CH
CD-EN, TU-EN,
MUTING
POWER ON
C
(Page 17)
F
(Page 19)
CD-EN
TU-EN
MUTING
G
(Page 19)
SOL, REC_EN,
MOTOR_ON
E
(Page 17)
11
Q8
12
Q7
13
Q6
14
Q5
6
Q3
REC_EN
SOL
MOTOR_ON
LED
DRIVE
Q249
LED103
CD
DISC SKIP
5
Q2
LED
DRIVE
Q250
LED104
TAPE
4
Q1
LED
DRIVE
Q251
LED105
TUNER
BAND
7
Q4
LED
DRIVE
Q248
LED102
MD
19
19
HCD-EP707
5-4.
BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section –
SYSTEM CONTROLLER
IC101 (3/3)
POWER ON/OFF
RELAY DRIVE
Q809
MAIN
POWER
TRANSFORMER
TR800
LINE
FILTER
L801
AC IN
SUB
POWER
TRANSFORMER
TR801
RE201
POWER AMP B+
D831, 836
D105
D104
D212
CD-EN
MUTING
D830
D800
RESET 10
PWDET 38
REMOTE CONTROL
RECEIVER
X101
39 REMIN
CD-EN, TU-EN,
MUTING
MUTING
ROTARY
ENCODER
R216
ENCODERA
42
ENCODERB
43
S18
72
S19
71
33 – 31, 29
G1 – G9
KEY1 – KEY3, KEY5
100 – 92
S2 – S17
89 – 73
SW101 – 105,
108 – 125, 901
R216
VOLUME
FLUORESCENT
INDICATOR
TUBE
VFD1
VFD1
RECT
D806 – 809
RECT
D810 – 813
RECT
D833, 834
RECT
D837
D837
RECT
D802 – 805
B+ SWITCH
Q210, 211
B+ SWITCH
Q801, 802
+8V
CD BLOCK B+
+9V
TAPE DECK SECTION,
HEADPHONE AMP,
INPUT SELECT B+
+12V
CAPSTAN/REEL MOTOR B+
+5V
SYSTEM CONTROLLER,
EEPROM B+
STANDBY LED B+
VFD B+
VFD B–
+12V
REGULATOR
U802
+9V
REGULATOR
U700
+5V
FM/AM PLL B+
+5V
FUNCTION SELECT B+
CD DRV B+
+5V
RDS DECODER B+
+5V
TUNER B+
VOLTAGE
DETECT
Q822
POWER
2
RESET
SWITCH
Q101
G
(Page 18)
F
(Page 18)
TU-EN
POWER ON
SWITCHING
Q105
LED DRIVE
Q103
B+ SWITCH
Q206, 207
B+ SWITCH
Q209
+5V REGULATOR
Q205
+5V REGULATOR
D832, R834
AM FREQUENCY
STEP SELECT
SWITCH
Q104
AM FREQUENCY
STEP SELECT
SWITCH
Q106
+5V REGULATOR
Q821
LED101
STANDBY
RECT
D816
D816
RDS CLKIN 37
RDS DATAIN 26
RDATA
RCLK
H
(Page 16)
(AEP, UK)
(AEP, UK)
BUFFER
Q102
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