Block Diagram - Main Section - Sony CSD-XD55 Service Manual

6-4. BLOCK DIAGRAM — MAIN SECTION —
AEP
Q105
J303
LINE IN
Q205
Q204
CD_IN_R
A
CD_IN_L
(Page18)
Q104
HRP301
RECORD/PLAYBACK
HEAD
L-CH
R-CH
S301
HE301
-1 -2
Q106,206
(REC/PB)
ERASE HEAD
REC
PB
Q302
AUDIO 6V
27
80 79
5 6
EEPROM
IC803
L4
AEP
LW FREQUENCY COVERAGE
US,CND,E,SP
AM FREQUENCY COVERAGE
AEP
CONSTANT
VDD (SW)
CURRENT
Q61
D324
AEP
MW/LW
SW
Q14
US, CND, E, SP
CT5,L3-2
LW
TRACKING
D3
LW SW
Q44
CT3,L3-1
MW
TRACKING
CT5
L3
CT3
LW SW
AM
Q43
FERRITE-ROD
ANTENNA
-2 -1
AEP
ANT1
LW MW
FM
TELESCOPIC MW SW
MW SW
ANTENNA Q41
Q42
RA6V
L3
MW/LW
FERRITE-ROD
ANTENNA
CT1,L1
FM
TRACKING
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R.RO
9
R.IN
8
R.LINE
REC/PB
DET
14
PRE AMP
IC301
L.RO
4 ALC 2
L.LINE
24
L.IN
5
RADIO L
AEP
6
REF
MUTE
21 22 16
TU_IN_R
T301
REC BIAS OSC
AEP
Q301
Q822,823
Q303
66 67
SYSTEM CONTROLLER
TUNER
IC802 (2/2)
70 71 74 75
6 – 9 26–10 59 57 58 56
LIQUID CRYSTAL
X801 X802
DISPLAY PANEL 32.768kHz 4.19MHz
LCD401
1 2 3 4
11
AM IN
FM/MW/LW PLL
12 FM IN IC2
6 MW/LW
13 20 19 11
X1
75kHz
L4
20 19
RADIO 6V
FM/MW/LW FRONT-END, IF AMP,
FM MPX
IC1
AM
OSC
MIX-OUT
T1
AM RF-IN
AM
22 4 6
MIX
FM
CF4
MIX
RADIO 6V
FM
7
OSC
FM
CF2
RF-IN
FM
2
RADIO 6V RADIO 6V
RF-OUT FM OSC
24 21 T1
MW
L2
IF
L1 CT1 FM
D1 D2 L2
FREQUENCY
AEP
COVERAGE
RADIO 6V RADIO 6V
IC301
ELECTRONIC VOLUME
VOL AMP
VOUT2
LINE AMP VIN2
L.LO
20 8
Q101
SURROUND
R.LO 18 R-CH
CONT
Q301
LOGIC
LINE 17
TAPE 15
5 4
CD SW
CD-CONTROL
B
(Page18)
37 36 32 77 78
VOL
76
60
1
RESET
IC804
2
3.3V
17 18 10 7 9 8
Q814
14 17 13 18
AEP
IF CUT
MW/LW
IF
HIGH
BUFFER
CUT
AM
Q12
IF-IN
AM
DET
DET-OUT
MPX-IN
AF
16 15
BUFFER
FM
IF-IN
FM
DET
10
T2
T2
AM FM
IF IF
US,CND,
E,SP
RADIO 6V
19 19
POWER AMP 2
IC305
12 3
STBY
8
POWER AMP 1
IC304
7 12 3
8
MEGA
MUTE
BASS
Q124
U-COM
CONTROLLER
(VDD)
Q122
LEVEL
DETECT
D101,201
D322
AEP
TAPE PLAY
LINE B+
AUDIO DETECT
ON/OFF
6V Q808
Q816,817
34 68 35 49
REMOTE
46 50 45 44 43 31
VDD (SW)
Q813
Q812,D807
KEY3
KEY2
KEY1
R-OUT
FM 11 TU_R_OUT
L-OUT
MUTE
MPX
12
TU_L_OUT
IF CUT
• R-ch is omitted due to same as L-ch.
• Signal path
F
: FM
f : MW
E
: TAPE PLAY
a : TAPE REC
J : CD
• Abbreviation
CND : Canadian model
SP : Singapore model
CSD-XD55
Ver 1.1
SP103
SPEAKER(LCH)
R-CH SP203
SPEAKER(RCH)
R-CH
J301
i
TW
SP102
SPEAKER
(L-CH)
TW
SP202
SPEAKER
(R-CH)
VDD (SW)
S301
(TAPE PLAY)
M
M301
CAPSTAN/REEL
MOTOR
REMOTE
CONTROL
48 1
RECEIVER
IC401
3
REMOCON
AC-HI VCC
D804
D406
(BACK LIGHT)
+6V LINE BUFF
D405
OPR/BATT
Q820
KEY NETWORK
S413-418,
S408-412,
S401-407