Sony WM-GX400 - Tape Section Block Diagram

88
WM-GX400
4-2. BLOCK DIAGRAMS – TAPE SECTION –
CURRENT
DETECT
SPEED
DETECT
SPEED CONTROL
REF
WAVE-
FORM
DETECT
MOTIVE
LOGIC
SOFT
SWITCH
PRE
DRIVE
OUT
U OUT
V OUT
W OUT
VSP
IN+
VREF
S/S
-+
17
4
5
6
16
15
14
13
BIAS
2
3
10
1
17 26
12 30
27
9
8
6
5
4
13
9
MIC
INPUT (L)
PB PRE
INPUT (L)
MIC AMP
PRE AMP
REC AMP
MIC
PR
REC DRIVE
OUTPUT (L)
S301-3
S301-4
R-CH
VCC
VCC
VCC
VREF
VREF
T331
BATT
BATT
S302-2
S302-1
S301-2
S301-1
PB/REC
SELECTOR
REFERENCE
REC DRIVE
INPUT (L)
B
IC302
(2/2)
REC
SG
A
MAIN
BOARD
(2/2)
REF
REC
D406
VREF
R-CH
L
L
R
FWD
HRPE301
REC/PB/ERASE HEAD
J302
R
MIC
VCC
Flat Mic
MIC
(PLUG IN POWER)
MIC301
ISS
SWITCH
Q335
ND701
LIQUID
CRYSTAL
DISPLAY
MOTOR
BRAKE
Q601-603
BIAS
OSC
Q334,336
ISS
S703
FM
S708
AM
S709
OFF ENTER
S710
S712
TAPE SPEED 2.4cm/S
RV601
TAPE SPEED 4.8cm/S
RV602
S701 (ROTALY)
3
2
1
S707
S303
BATT
TUN MODE MOTOR CTL
10
MOTOR BLK
19
AMP ON
29
2 322
TAPE
BATT
28
REC
13
VERSION
18
TUNING-A
31
TUNING-B
11
PUSH
CBA
COM
BATT
PAUSE X2
N/R SW
PB1
PB2
PA0
PA1
PA2
COM1
COM4
S706
48
45
44
33
S1
S2
SYSTEM
CONTROL
IC701(1/2)
MOTOR DRIVE/
SPEED CONTROL
IC301
IC302
(1/2)
REC/PB AMP
BATT
DETECT
IC702
S302
REC
PB
S301
FWD
REV
RADIO ON
MUTE
C
MAIN
BOARD
(2/2)
GATE
SWITCH
Q356
MIC
VCC
VCC
BATT
Q354-355
REG
Q501, 502
REV
FWD
REV
DC IN 3V
M
M601
CAPSTAN/REEL
MOTOR
U
V
W
COM
S601
(TAPE POWER)
DRY BATTERY
SIZE “AA”
(IEE DESIGNATION LR6)
2PCS, 3V
+
-
J501
[DISPLAY BOARD] (1/3)
[DISPLAY BOARD] (2/3)
R–CH IS OMITTED: SAME AS L–CH
[MAIN BOARD] (1/2)
TUNING MODE
MANUAL
PRESET
VDD
PAUSE
ON
OFF
TUNING
TAPE SPEED
NORMAL
DOUBLE
• Signal path.
E : PB
a : REC
N : MIC
w w w . x i a o y u 1 6 3 . c o m
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3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
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