Sony Walkman WM-FX495, Руководство по обслуживанию

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11 11
WM-FX495
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAMS
5
8 12 13
10
29
FM
DET
AM
DET
24
25
28
27
FM
OSC
1/8 or 1/16
AM
MIX
AM
OSC
Q302
REF
Q405
OSC
MUTE
VBAT
RF & RET
Q404,408
LPF
SW
16
15
14
21
22
19
23
7 26
20
56
32
33
45
49
57
52
23
24
8 29 19
10
22
7
54
65
5 - 21
1 - 4
64
63
62
60
42
51
44
72
71
36
11
9
12 40
37
39
38
35 13
25
28
30
29
27
46
26
58
34
VCC
VBAT
Q304
66
67
68
69
21 18
30
4
1
5
25 16
16
26
VBAT
VBAT
Q607
INV.
VCC
W
START
DR
V
U
W
COM
V
VBAT
Q603
U
VCC
L-CH
R-CH
FWD
R-CH
L-CH
REV
3
1
19
DRIVER
CONTROL
PRE
DRIVER
FM MPX
FM/AM/TV
PW SW
10 7
8
6
VREF
L7
FM-
RF
L7
FM
TRACKING
CT1,L4
AM
TRACKING
L3
FM-
OSC
L5
AM-OSC
L5
AM
FREQUENCY
COVERAGE
L4
AM
BAR ANTENNA
D4
X1
(FM DISC)
D3
QUAD
CT1
D1
AM RF IN
FM/TV OSC
FMRFOUT
IF BAFF
FM
RF IN
FM-
IF IN
DET
OUT MPX
IN
R-CH
AM-
MIX AM-
IF IN
AM B/P
AM OSC
(VT)
OSC BUFF
CF2
(AM-IF)
D402
VBATT
Q401
Q2
VREF
Q101
Q305
AVLS
IC301
PRE/POWER
AMP
Q201
Q202
Q102
VCC RF VCC
T401
T401,Q405
DC/DC CONVERTER
INA
INB
RF
OUT
VREF
BASE
VCC
VREF
Q301
INV.
PRE
OUTA
PRE
OUTB
RV301
VOL
R-CH
PW
IN A
PW
IN C
BST OUT
BST SW
PW NFA
PW NFB
OUTA
OUTC
PW MUTE
PRE MUTE
R-CH
MUTE CTL
E2P_CS
E2P_CLK
E2P_DATA
PRE CTRL
70 RESET
F/R_CTRL
MOTOR_START
MOTOR_SPEED
MOTOR_BREAK
MOTOR_DIR
TAPE DET
59 REMOTE
BATT DET
DDC_CTRL
AMP_CTRL
IC701 (2/2)
SYSTEM
CONTROL
IC201
+1.6V REG.
IC801
+2.5V SWITCHING REG.
IC501
EEPROM
IC704
RESET
CF1
(FM IF)
IC1
FM/AM FRONT END
IF DET, FM MPX
IC701 (1/2)
SYSTEM
CONTROL
IC601
CAPSTAN/REEL
MOTOR DRIVE
LOUT
ROUT
LPF1
REQSW
OSC OUT
MODE-1
MODE-2
IF
COUNT
MONO/STEREO
IF IN
IF_REQ
BAND1
BAND2
VCO IN
RADIO_ON
DO
AVLS_CTRL
MB CTL
VBAT
S2
I
S17
COM1
I
COM4
K4
K3
K2
K1
KO1
KO2
KO3
KO4
MECHA SW
PHOTO CTL
HOLD
PHOTO_IN
XOUT
XIN
BEEP
Q303
EQ SWITCH
X701
32.768KHz
R-CH
PH751
R-CH
2 4
FM-
MIX
LCD1
LIQUID
CRYSTAL
DISPLAY
KEY
MATRIX
S702-715
RV601
TAPE SPEED
S701
HOLD
ON
OFF
S601
(MD CONT)
FWD
FF
REW
RVS
IN+
M601
CAPSTAN/REEL
MOTOR
S301
(TAPE SW)
DRY BATTERY
SIZE"AA"
(IEC DESIGNATION LR6)
1PC,1.5V
HP601
PLAY BACK HEAD
J301
i
FM
MIX
MOTOR
BLEAK
SWITCH
Q604-606
1 2
1
2
3
4
CS
CK
DI
DO
5
2 3 2 1
LX
L801
D801
+2.5V
+1.6V
VOUT CE VIN VOUT
SWITCH
Q752,753
+2.5V
INV.
Q751
• Signal Path
: FM
: AM
: PB
• R-CH is omitted due to same as L-CH.