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6-9.
SCHEMATIC DIAGRAM – MAIN Board (4/4) – •
(4/4)
F1
C905
6.3V
F2
C932
1000p
R932
R931
1M
2.2k
C931
0.01
(Page 44)
C935
1000p
C936
0.01
C908
C901
D901
4.7
4.7
MA729-TX
16V
16V
F3
L901
C940
0.1
C937
0.1
C938
1000p
C933
0.01
R934
R933
1M
2.2k
C934
1000p
F4
C1
C2
(Page 42)
C913
10
6.3V
See page 46 for IC Block Diagrams.
(Page 43)
TP902
(VC1)
C904
C907
C906
47
47
47
0.1
6.3V
6.3V
L904
R921
R922
R923
47µH
470k
100k
220k
C943
1
C944
1
RF1
SLEEP
INM1
CLK
DTC1
SEQSEL
CRST1
WDT
XRST1
SCK
C1L
STRB
VG
DATA
LG
HPI2
POWER CONTROL
PGND3
HPI1
IC901
VB
SC901580EPR2
MUTEON
XRST2
GND
CRST2
VHP1
DTC2
HP1(L-CH)
INM2
PGND4
RF2
HP2(R-CH)
VC2G
VHP2
R914
47k
R912
47k
R916
100k
L903
22µH
D902
MA22D2800LS0
TP912
R915
R917
(REG2)
47k
100k
TP905
TP913
(VC2)
(REG3)
C903
C902
C915
47
47
10
6.3V
6.3V
6.3V
TP911
C911
(REG1)
10
6.3V
R852
100k
XCS_NV
SDI0
R854
0
R1025
220
R924
470k
R1024
2.2
FFCLR
R943
4.7k
R944
4.7k
SLEEP
C939
L381
2.2
R387
10µH
SCK0
100k
C388
XCS_PWR_IC
C182
4.7
R382
4700p
6.3V
220k
SDO0
R384
C183
220k
2200p
C283
C381
2200p
1
C282
C387
4700p
2.2
6.3V
C281
R281
1
4.7k
R-IN
C287
470p
GND
C917
C181
C187
0.01
1
470p
L-IN
R181
4.7k
RIP-F1
C382
22
4V
R388
4.7
C391
100
6.3V
45
45
(NOT SUPPLIED)
IC851
AK6510CL
C851
0.1
XCS
VCC
R853
SO
XHOLD
100k
SCK0
XWP
SCK
SDO0
GND
SI
EEPROM
D1002
CL-270HR-C-TS
(CHARGE)
D1001
Q1001
CL-270FG-C-TS
UN9212J-(TX).SO
(DATA)
LED DRIVE
RMC_DTCK
RMC_KEY
∗
R184, 284
22 (AEP, UK)
4.7 (E, HK)
R284
R286
C285
R186
∗
0
2.2
0
6.3V
R184
∗
D201
D101
C284
MA2S111
MA2S111
220
-TX
-TX
2.5V
ROUT
C184
GND
220
2.5V
HEADPHONE AMP
IC381
LOUT
AN17020A-VB
GA-L
C185
2.2
6.3V
C384
C383
47
47
6.3V
6.3V
AM-NX1
Ver 1.1
J303
R846
1M
FB841
RVDD
FB842
DTCK
FB843
KEY_R
FB844
RGND
D302
DF8A6.8FK
(TE85R)
When IC851 is damaged, replace the MAIN board.
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