Block Diagram - Main Section - Sony CFD-C1000 Service Manual

5-4. BLOCK DIAGRAM — MAIN SECTION —
MAIN BOARD (2/2)
HP301
PLAYBACK HEAD
CN301
(DECK-A)
3
L-CH
CN502
5
L-CH
4
HRP301
REC/PB SW
REC MUTE
RECORD/PLAYBACK
Q102,103
Q125
HEAD
(DECK-B)
REC/PB SW
Q302
REC/PB
R-CH SW
Q303,304
HE301 REC SW
ERASE HEAD Q314
CN303
(DECK-B)
2
1
Q316
BEAT CUT
ANT1
FM TELESCOPIC
ANTENNA
FM TUNER UNIT
FE1
CF1
RF IF AMP
8 1
3 4
IF AMP,DET,MPX
L4
JK303
AM ANT AM RF
2
AM
21
AMP
EXT 1
Q8
ANT
TC2
L5 OSC
L4,TC2
AM
AM
FREQUENCY
TRACKING
CONVERAGE
L5
AM OSC
16 18 19 20
X1
7.2MHz
1 X IN
23 X OUT
04
TAPE REC/PB PRE AMP
IC301
A-L
1
OUTR 15 R-CH
LINE AMP
IC303
OUTL
B-L
5 7
14
32
ALC
BIAS
MEGA BASS
TR-C TR-B CD-L TU-L NOR A/B
Q121
29 30 12 10 27 28
DECK A/B DECK A/B
CONTROL SELECTOR
Q305,306 Q313
REC SW
Q308
Q301
L301
CD ON RADIO ON
+7.5V SWITCH SWITCH
Q312 Q311
1
CD L-CH
CD SECTION
CF2 FM POWER
+FM +10V
CONTROL
Q1
Q14
CF4
1 7 8
FM IF FM+B
IC2
L OUT
FM DET
AM
MPX MUTE
R OUT
MIX
AM DET
AM
IF
OSC AM MIX AM IF
23 24 2 4 10 11 12 20 6
AM IFT
T2
T2
AM IF
CF3
15 12 8 9 10 11
CE 3
DI 4
PLL
5
CLK
IC3
DO 6
– 19 –
POWER BOARD
5
ELECTRONIC VOLUME
MUTE
IC304
Q380
CN313 CN313
L IN L OUT
3 3
2 TONE 8
4 4
MUTE
SDA SCL
Q382
9 10
+5V REG
HP5V
IC309
M9V
SYSTEM CONTROL
IC801(2/2)
+10V
+7.5V
POWER
SYSTEM
82
83
SW OUT
MUTE +5V
4 SCL
22 SDA AC CHK 1
21 MEGA BASS
34 REC
TAPE SPEED
88 RADIO LED
SFR301
CD LED
86 MOTOR
MOTOR
CONT
20 BEAT CONT 98 CONTROL
OUT Q309,310
TC A 99
TC B 100
13
Q123 SEG26
80
14 R-CH SEG26
I
I
SEG11
65
84 TUNER MUTE
SEG11
SEG10
RESET
3 38 RESET I
64
IC802
SEG0
SEG10
I
COM3
I 50
S301
COM0
RESET
COM3
15 CE OUT
17 DATA OUT
COM0
14 CLOCK
LED VDD 23
16 DO IN +9.5V
LED POWER
+10V
CONTROL
Q811,812
HEADPHONE AMP
IC308
7
MUTE
POWER
2 MUTE
POWER AMP
Q381
IC305
11 2
MUTE
5
POWER
MUTE
Q321
+10V
ERROR
RECT
DET
D330
Q322,323
12 12 +15V
11 11
-15V
5 5
+9V REG
Q380
RECT
2 2
+10V REG D327
Q325
4 4
+7.5V REG
Q326
9 9
+5V REG
IC306
VOLTAGE
10 10
CHECK
Q328
CN314 CN314
M301
MD BOARD
(CAPSTAN/REEL)
2 2
M
4 4
S1 (MOTOR)
DECK-A
5 5
S2 (PLAY)
7 7
S3 (PLAY)
6 6
S4 (REC) DECK-B
CN305 CN305 S5 (MOTOR)
LCD BOARD
CN801
1 1
LIQUID
16 16
CRYSTAL
DISPLAY
PANEL
LCD801
1 1
SEG0
15 15
LAMP BOARD
16 16
17
17
LCD BACK LIGHT
CN802 CN802
LP801-803
– 20 –
CFD-C1000
HEADPHONE BOARD
CN308
4 4
2 2
R-CH
1 1
JK302
PHONES
CN308
+
SP901
–
SPEAKER (L-CH)
+
R-CH
SP902
–
SPEAKER (R-CH)
JK301
SPEAKER IMP.6Ω
PT1
CN307 POWER
F302
TRANSFORMER
3
1
F303
~
AC IN
F301
2 AC BOARD
1
CN306
• Signal path
: FM
: AM
: PB
: REC
: CD
• R-ch : same as L-ch.