Block Diagram - Sony WM-GX780 Service Manual

6-1. Block Diagram

L
FWD REC/PB HEAD
R R-CH
L
REV REC/PB HEAD
R R-CH
BIAS
FWD
SW
ERACE HEAD Q509
REV
FL1
HPF 1
FL2
BPF 2
30
L2
D2 L2
TV FREQUENCY
COVERAGE
29
L1
D4 L1
FM FREQUENCY
COVERAGE
24
L3
D3 L3
FM/TV
OSC
25
L5
D1(1/2) L5
AM
OSC
L4
D1(2/2)
27
28
CT1
L5,CT1
AM FREQUENCY
COVERAGE
• R-CH is omitted due to same as L-CH.
IC501
REC AMP
44
Q504
REV/FWD
SW
41
Q506
FWD/REV
15 46
SW
DET ALC
21
16
23
27 CONT D
28 CONT C
Q507,508
BIAS
SELECT
REC/PLAY 32
REC BIAS
VCCRF FWD/REV 33
REG
MIC/RADIO 34
S501
5 6 7 8
1-2-3
+1.5V
Q502 Q503
T501
REC BIAS
SW
BIAS
REG
OSC
Q510
Q511-515,505
RADIO+1.5V
FWD/REV
SW
CF1
BPF
IC1
FM/TV/AM TUNER
4 8 12 13
FM
FM/TV
DET
MIX
LEVEL FM
DET MPX
AM
DET
TV
OSC
SW
FM 1/8
1/2
OSC 1/16
FM/AM/TV
PW SW
AM
OSC
AM
MIX
5 10
CF2
BPF Q404,407
VT
IC501-VCC2
: FM
VCCRF
: PB
: REC
IC1-VCC
IC301(1/3)
1
PRE
7
5 AMP
Q306
AVLS
14 12 R-CH
AMS
15 40
DET
Q2
BUFF
Q3 Q305
PRE CUE
CONT REVIEW
46 AMS IN
62 AVLS CTL
30 CUE REVIEW
55 PRE CTRL
1 37 E2P CS
IC702
2 39 E2P CLK
EEPROM
3 38 E2P DATA
4
Q702
40 REC CTRL
54 F/R CONT
51 LOCAL/DX
71 X OUT
X701
75kHz
72 X IN
S701 HOLD
42 HOLD
S702-710
KEY
58 MAIN KEY
16 69 MD SW(REV)
15 R-CH 68 MD SW(STOP)
S801
67 MD SW(FWD)
REV-STOP-FWD
14 23 MONO/STEREO
19 45 IF IN
20 56 MUTE CTL
21 32 BAND 1
22 33 BAND 2
23 49 OSC IN
52 D0
63 BST CTL
34 AMP CTRL
66 MIC/RADIO
Q501
SW +2.5V
IC301(3/3)
45 44 41 43 42
Q517
RIPLE
SW
SW
FILTER
46
17 18 19
Q1
SW
+1.5V
S302
RIPLE
ATS SW
FILTER
Q302
13 13
ANT
IC301(2/3)
POWER
28 20
AMP-L R-CH
RV301 REMOTE
R-CH
29
VOL
AGC
33 AGC 35
DET
POWER
32 21
AMP-C
BEEP
39
Q303 Q304
MB/GRV RV
SW SW
IC701
SYSTEM CONTROL
MB/GRV CTL 64
BEEP 36
RV CONT 65
REMOTE KEY 61
R DATA I/O 57
LCD701
COM1 1
| |
COM4 4
LCD
S1 5
| |
S18 22
Q703,704
PLUNGER
PM CTRL 29
DRIVER
Q701 PH701
PHOTO IN 45
BUFFER SENSER
PHOTO CTRL 33
S303,502,503
TAPE
TAPE SW 59
SW
Q601-604
MOTOR
MOTOR BRAKE 27
BRAKE
IC601
MOTOR DRIVER
W 24
MOTOR START 24 3 START
U 1
MOTOR DIR 28 18 DR
V 2
VREF IN+
8 10
RV603 RV601
SPEED CTRL 1 25 SPEED
CONT
SPEED CTRL 2 26
Q605-607
RV602
SPEED CONTROL RV602
IC703
RESET 70 1
RESET
IC901
BATT
+2.5V
BATT DET 60 2 3
DET
IC401
+1.5V
+2.5V VOUT SW
2 5
Q405
1
Q406
RADIO+1.5V SW
Q401-403
DC-DC
CONV
T401
WM-GX780/GX788
J301
DATA
J501
R-CH
MIC
M601
M
NI-MH
1.5V
1.2V