Sony Walkman WM-GX788, Руководство по обслуживанию

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WM-GX780/GX788
6-6. IC Block Diagrams
IC1 TA2154FN(EL) IC301 TA2123AF(EL)
IC501 LA3235W
IC601 LB11675V-TLM
37
38
39
40
41
42
43
44
45
46
47
48
24
23
22
21
20
19
18
17
16
15
14
13
1 2 3 4 5 6 7 8 9 10 11 12
35 36 34 33 32 31 30 29 28 27 26 25
N.C.
REF
V REF
GND
REV REC L
REV REC R
FWD REC R
FWD REC L
VCC2
MONITOR L
MONITOR R
N.C.
GND
MIC IN L
NF L
RADIO IN L
MIC IN R
NF R
RADIO IN R
MIC OUT R
MIC OUT L
REC IN L
REC IN R
N.C.
N.C. REC MUTE MIC/RADIO FWD/REV REC/PLAY CONT F CONT A
(FWD)
PLAY(REV)
(REV)
PLAY(FWD) PLAY(FWD)
(REV) (REV)
PLAY(FWD)
PLAY
REC
CONT B CONT C CONT D CONT E N.C.
N.C.
MIC REG REF
MIC REG
REC BIAS REG REF
REC BIAS REG
OSC
BASE VCC1
VCCRF
ALC
GND
N.C.
SYSTEM CONTROL
V REF
REV
REC
AMP
FWD
REC
AMP
MONITOR
AMP
DET MIC
REGULATOR
REC BIAS REGULATOR
ALC
AMP
L
ALC
AMP
R
VCC2
( ):REC
+
–
+
–
AGC
DET
BST
PWC
PWB
–
+
PWA
+
–
+ –
+
–
+
–
TOMP
RIPPLE
FILTER
MIX
MTL DRV
VREF
PREA
PREB
BEEP
SW
36 35 34 33 32 31 30 29 28 27 26 25
24
22
21
20
19
18
17
16
15
14
13
23
12 11 10 9 8 7 6 5 3 2 1 4
48
47
46
45
44
43
42
41
40
39
38
37
AGC DET AGC IN BST NF BST OUT IN-C LPF EQ R NF-R IN-R IN-L PW NF-L EQ-L
RF IN
PW GND
OUT L
OUT C
OUT R
VCC
BASE
RF OUT
GND
AMS
AMS
AMS
VREF IN
PRE GND
M/N SW
PRE SW
F/R SW
BST SW
PW SW
MT SW
AMS OUT
BEEP
MT TC
CAMP SW
AMS IN
NF
OUT MTL MTL OUT
NF
IN IN
REF OUT
IN IN
VCC
VCC
10K
SPEED
DETECTION
PREDRIVER
SOFT SW
COMMUNICA
TION/
ST
AR
TING LOGIC
POWER
SUPPLY
BIAS
REF
VOLTAGE
OSC
CIRCUIT
CURRENT
DETECTION
STARTING
DETECTION
1
V OUT V OUT START PGND GND VCCI OSC V REF VSP IN + OUT RI
2 3 4 5 6 7 8 9 10 11 12
24
W OUT NC NC PGND COM FC DR PV PU PW TC2 TC1
23 22 21 20 19 18 17 16 15 14 13