Sharp MD-MT270HS/BK Service Manual page 25

Portable minidisc recorder
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RDATA
ON
BEEP
OUT
PBMUTE
PON
ON
RPLAY
LAY
RCPCNT
CNT
8_1
HREC
REC
HPLAY
LAY
DINT
INT
NMI
VCC
TAL
VSS
TAL
SET
PW
RCAULT
LAT
CK407
R417
VSS
10K
VSS
CIN
CIN
PIN
PRT
VAR
MON
TP411A
R411
100K
TP407
7
TP101
LDVAR
TP102
LDON
TP103
DGND
L101
100mA
DGND
VCC
TP105
B
TP106
TP107
A
COM
TP108
CVCC
MP/R
TP110
TP111
RF2
TP112
AGND
VCC
TP114
RF4
RF3
TP115
E
TP116
F
TP117
RF1
TP118
T+
TP119
TP120
F+
TP121
T–
F–
C171
33/6.3V
C218
220P(CH)
C217
220P(CH)
+2.5V
EFMMON
AVCC1
EFMI
C207
AGND1
0.1
AVCC2
AGND2
VREF
C209
WBI
0.1
TCG
AIN
BIN
EIN
FIN
R205
VBAT
27K
TEST0
TEST1
TEST2
TEST3
TP205
X176KO
FODRF
FODRF
FODRR
FODRR
TRDRF
TRDRF
TRDRR
TRDRR
SLDRF
SLDRF
SLDRR
SPDRF
SPDRF
SPDRR
SPDRR
VDD2
DGND
ACRCER
TP203
TCRS
CK225
PLLCK
8
9
Figure 25 SCHEMATIC DIAGRAM (2/8)
R134
R132
1M
1M
BOUT
EOUT
R135
ESW
56K
EIN
R137
FIN
56K
FSW
TP130
FOUT
TP131
EOUT
TP132
BOUT
TP133
AOUT
TCGO
BPF
TCGI
RFADD
C133
R139
0.22
39K
DTEMP
CK100
C204
0.47
CK211
IC203
62FP1602
REGULATOR
10
– 25 –
MD-MT270H
C114
5P(CH)
R111
12K
1+2
C112
0.033
PIN
C107
3+4
0.033
PITG
C106
NIN
1
GND1
R112
BIAS
220K
VCC1
C110
EFMAGC
0.22
DCNF
ADIP
AGC
EFMO
L204
100mA
R207
680
DILOCK
DEFECT
DOUT
DIN
EMPH
EXPORT4
LDCNT1
LDCNT1
LDCNT2
LDCNT2
C215
AVCC3
1
EXTC
PLLBVC
AGND3
VDD1
XO
R222
XI
1M
VDDX
DGND
PON
PWMOUT
PWMOUT
L203
PWMVDD
10µH
PWMVDD
DGND4L
LOUTX
LOUT
MUTE
VDD4LR
ROUT
ROUTX
DGND4R
AVCC4
VOLDAC
C206
1
R218
330K
11
12

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