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6-7.
SCHEMATIC DIAGRAM – MAIN Board (2/4) – •
(2/4)
FS256
1
R821
47k
A06(NC)
A07(NC)
A08(NC)
A09(NC)
A10(NC)
A11(NC)
A12(NC)
A03(NC)
A13(NC)
A04(NC)
XCAS
A05(NC)
XRAS
XWE
XCS
CLK
CKE
UDQM
LDQM
DVDD0
DVSS0
DVDD1
DVSS1
DVDD2
DVSS2
DVDD3
DVSS3
DVDD4
DVSS4
IFVDD0
IFVSS0
IFVDD1
IFVSS1
IFVDD2
IFVSS2
IFVDD3(D CLASS AMP)
IFVSS3
IFVDD4
C833
L802
22
IFVSS4
10µH
6.3V
AVDD
AVSS
C802
0.1
VDIOSC
VSIOSC
C829
0.1
DAVDD
R803
C805
DAVSS
10
10
6.3V
AVD1
(Page
AVS1
36)
AVD2
AVS2
TSMVDD
TSLVDD(NC)
DRAMVDD0
DRAMVSS0
DRAMVDD1
DRAMVSS1
C808
ITO
1000p
MITY
USBIFVDD
MVDD
USBOSCVDD
USBOSCVSS
AVDPLL
R855
0
AVSPLL
C801
EVA
4.7
FVDD0
FVSS0
DVDD5
C856
DVDD6
0.01
DRAMVDD3
DRAMVDD4
NC
L803
10µH
NC
NC
C832
10
NC
4V
NC
NC
NC
C803
0.1
NC
C831
OSCI
0.1
C830
100
4V
R804
R811
R806
10
220k
0
X803
22.5792MHz
R805
C837
C838
0
1p
1p
4
FB801
C811
0
1
3
C812
1
C814
0.47
C813
0.01
See page 33 for Waveforms.
R858
C819
0.1
FB802
0
R822
R824
R843
220k
470k
0
SYSTEM CONTROLLER
DIGITAL SIGNAL PROCESSOR,
16M BIT D-RAM
∗
IC801
CXD2680-207GA
CSP(Chip Size Package)
C818
0.1
R816
220
R814
2.2k
R817
C820
R820
2.2M
R815
0.01
2.2k
1k
R818
1M
C817
APCREF
1
PEAK
C822
C823
0.01
0.022
(Page 39)
R835
4.7k
X802
48MHz
R826
R825
2.2k
1M
0
R823
R834
2.2
R828
4.7k
22
R839
0
JOG_B
JOG_A
T_MARK_SW
XCS_REC_DRV
D_VO_PWM
GREEN_LED_PWM
RED_LED_PWM
SSB_DATA
VREC_PWM
(NC)
CHG_PWM
(NC)
XCS_NV
XRST_MTR_DRV
LCD_STB
XCS_LCD
D_EN2
D_EN1
XCS_PWR_IC
SPDL_MON
XDC_IN
CHGI_SEL
CHG_ADSEL
COUT_MON
XHOLD_SW
XEXT_PWR
XRF_RST
XTEST
NC
ORANGE_LED
CHGI_CTL2(NC)
CHGI_CTL1
FFCLR
SLEEP
NC
SLD_MON
(NC)
(NC)
GND_SW
(NC)
(NC)
PD_S1
PD_S0
XRST_CHG_IC
VREC_CTL
BATT_CTL
ACCESS_LED3
ACCESS_LED2
DOWNLOAD_LED
AOUT_SEL
XHP_STBY
XOPT_CTL
BEEP
XGUM_ON
SCK0
SO0
SI0
XPATCH
XMUTE
LCD_RST
XCHG_CTL(NC)
XPD_ADC
XCS_ADC
OPEN_CLOSE_SW
XMIC_DET
XJACK_DET
TD3(NC)
OPT_DET
TD2(NC)
PROTECT
TD1(NC)
PAUSE_KEY
TACK(NC)
TREQ(NC)
TD7(NC)
TD6(NC)
TD5(NC)
TD4(NC)
R844
0
FB805
0
R832
0
C852
0.1
EFM
37
37
R837
47k
C841
1000p
SSB_DATA
C835
0.047
R872
1k
R871
2.2k
XCS_NV
XRST_MTR_DRV
LCD_STB
XCS_LCD
XCS_PWR_1C
CLV_CON_U
S807
HOLD
OFF
ON
R861
0
XRF_RST
SL803
(TEST)
FFCLR
SLEEP
SLD_CON_U
GND_SW
PD_S1
PD_S0
REC_LED
EEPROM
R857
(NOT SUPPLIED)
1M
XHP_STBY
IC852
AK6417AL-L
XCS_NV
XCS
BEEP
VCC
SCK0
XSKRDY
C851
0.1
SDO0
XBUSY
DI
SCK0
RESET
SDI0
DO
SDO0
GND
SDI0
C826
0.01
LCD RST
R868
47
SL802
R869
R864
(OPEN/CLOSE)
100
4.7k
R866
S803
10k
OPEN/CLOSE
-1
-2
DETECT
R865
10k
Q872
D802
D801
XP4601-TXE
MA8068-TX
MA8068-TX
LED DRIVE
SL804
CN872
C873
14P
0.1
SET_KEY_1
R862
0
S806
PROTECT
SET_KEY_2
R863
0
DETECT
WK_DET
REC_LED
R850
0
REC_KEY
LCD_STB
XCS_LCD
SDO0
SCK0
FB806
0
LCD_RST
R860
R846
FB803
0
100k
0
C880
R845
0.01
100k
R874
R847
470k
220k
-1
-2
Q871
C871
R873
XP1501-TXE
0.1
470k
RESET SWITCH
(Page 38)
AM-NX9
DGND1
SET_KEY_1
SET_KEY_2
XWK1
DOWNLOARD_LED
DOWNLOARD_KEY
SWITCH
STB
&
XCS
LCD
MODULE
SD0
SCK
RESET
DVDD
DGND2
S_GND
When IC852 is damaged, replace the MAIN board.
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