Snap U700 - Motorola StarTAC 3000 Service Manual

StarTAC 3000:
This manual is Motorola property. Copying or
distribution strictly prohibited without prior written
consent from Motorola and must be returned upon
Motorola's request.
Motorola Confidential Proprietary
REF2.75
page B-12
LOG2.75
page B-12 P800
TX_ENB
51
R551
page B-9
SNAP_VAG
R731
MIC_BIAS
P800
AUDIO_IN
J3-8 35
page B-24
HEADSET MIC
37
J600-2
SPKR_OUT
C662
27
page B-11
EXT_OUT
C663
31
page B-11
RINGER OUT
R766
page B-16
DEMOD
R210
33
page B-6
PWR_CNTRL
U530-6
45
page B-9
PWR_DET
R557
47
page B-10
FMOD
R501
32
page B-8
PMOD
R407
30
page B-7
WATCHDOG
9
U601-15
page B-11
SNAP(U700)
2
Power Level
A 1.38V
.954V .637V .435V .241V .159V
B
1.24V 33
1.26V 34
1.27V 35
1.27V 36
2.73V 37
C722
1.26V 38
1.27V 39
1.27V
40
C742
1.27V 41
1.27V 42
1.24V
43
C741
1.26V 44
1.27V
45
R740
46
47
48
C761
R710
A
B
3 4 5 6 7
1.3V 1.21V 1.2V 1.07V .924V
C
.11V
R711
NC NC NC
32 31 30 29 28 27 26 25 24 23 22 21
U700
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
R713
Backlight Backlight
On Off
2.75V 0V
EE_EN
IF_EN
SYNTH_EN
160KHZ
RX_DISABLE
C
BACKLIGHT EN
20 19 18 17
E
16
R_W
15
14 D0
13
D1
12 D2
11 D3 DATA
10
D4
9 D5
8 D6
7 D7
6
A0
5 A1
4 A2
ADDRESS
3 A3
2 A4
1
A5
SNAP EN
RESET
IRQ
3.84MHz
CLK1_OUT
3.84MHz
DISP_OSC
4.2MHZ
U850-1
P800
page B-23
U201-19
13
page B-6
8
U401-39
page B-7
21
U601-34
page B-11
LOG2_75
page B-12
U201,U401,Q103
17
page B-6 page B-11 page B-4
U910-3
page B-16
360kHz
U800-36
page B-19
U800-38
page B-19
U800,U840
page B-19
U800,U840
page B-19
U800-45
page B-19
U601, U800
page B-11 page B-19
U800-55
page B-19
U800-39
page B-19
U900-37
P800
page B-20
R408
38
page B-7