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K
SYSTEM CONTROL CIRCUIT
BOOST5.3V
AL3.2V
BACKUP3.2V
IC302
BATTERY
BACKUP
J
8
7
6
5
Q3001
1
2
3
4
I
BACK UP
Z3001
H
G
STBY_RED
STANDBY LED
STBY_GREEN
(BACK UNIT)
Q3004
F
SW3.2V
BACKUP3.2V
SWITCH
X3002
SW3.2V
32.768KHz
X3001
4MHz
E
D
C
B
A
1
2
3
4
9
VDD2
ST_CHG
25
36
VDD3
CHG_DONE
4
59
VDD1
BLON
15
53
RESET
49
P ON
40
BAT_OFF/INT0
10
VSS2
LENS_4M
16
35
VSS3
56
VSS1
62
TH_TEMP
3
BACKUP_CTL
BATTERY
60
21
KEY_VREC
22
PLLEN
29
KEY_TELE
SCK
1
30
KEY_WIDE
IC301
SI
64
26
31
KEY_PLAY
8bit MICRO
SO
63
32
KEY_SET
PROCESSOR
SREQ
50
33
KEY_UP
LC87F5932AUTQ7
34
ZBOOT_COMREQ
KEY_LEFT
BOOT_COMREQ
26
41
KEY_DOWN
TRST
23
42
KEY_RIGIT
17
MAIN RESET
43
KEY_MENU
HOTLINE
5
44
KEY_1st
24
51
AV_JACK
KEY_POWER
USB_DET
19
52
KEY_2nd
11
VF.LED (R)
VF.LED (G)
12
28
SW3.2ON
CARD
2
XCIN
54
55
XCOUT
MROUT
20
XIN
57
58
XOUT
5
6
7
8
CIRCUIT DIAGRAMS
TEST POINT
LOCATION
CHG
TO STA
IC101
ZCHG_DONE
PIN W1
BL_ON
XOUT
TO PWA
PON
1V/div
LENS_4M
27
10ns/div
UNREG_SY
TH_TEMP
38
UNREG_SY
PLLEN
30
CN171
SCK
35
ASIC_SDO
PIN 33
36
ASIC_SDI
37
CSYNC
SREQ
32
1V/div
28
TRST
20µs/div
29
MRST
31
HOTLINE
34
ZAVJACK
39
USB_DET
CN171
41
PIN 31
CLK
ZCARD
1V/div
40
40ns/div
CN302
MROUT
33
TO CP1(DMA)
(VF1)
IC331
MR SENSOR
IC301
MRSS32W
PIN 16
SX817_SY_BLOCK
LENS_4M
1V/div
100ns/div
IC301
PIN 55
XCOUT
1V/div
10µs/div
9
10
11
12
C8
CIRCUIT WAVEFORMS
TEST POINT
WAVEFORM
LOCATION
IC301
PIN 58
XOUT
1V/div
100ns/div
13
14
15
16
K
WAVEFORM
J
I
H
G
F
E
D
C
B
WF-SX817
A
17
18
19
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