Motorola StarTAC 3000 Service Manual page 81

Star TAC 3000:
J3
TRU
12
CMP
14
RTN
16
5
MANUAL TEST
J1
6
Q770 VIB_EN
1
2
3
BAT GND
4
5
BAT SER DATA
THERMISTOR
9
10
11 BATT+
12
13
B +
Q640
14
CR640
EXT_B +
4
BATTERY FEEDBACK Q642
9 RX AUDIO OUT:ON OFF
8 SPKR-OUT -
7
SPKR-OUT- +
RF BOARD
CLOCK
DATA U520
ENABLE
8 TX AUDIO IN
Motorola Confidential Proprietary
15
ANALOG GND
This manual is Motorola property. Copying or distribution
strictly prohibited without prior written consent from Motorola
and must be returned upon Motorola's request.
A/L Block Diagram
Q984
B+
Q986
BATT_SEL
U626
26 25 40 14 13
41
34
EXT_B+ 32
33
31
CHRGR 28
DAC
36
27
Q632
PACER
CR631
23
U601
29
CHRGR_OUT
21
46
ON OFF
8
CR670
19
45 44
C671
15
11
16
10
12
3
2
ALERT_EN
VIB_EN
CHRG_SEL
CHRGR DAC HEADSET JACK
2
LOG_2.75
19
4.2 MHZ (3.84 mhz BRM)
DISPLAY
17
HOOK SWITCH
18
KEY
J800 P800 BOARD
DISP_B+ 5 59
9
KEYPAD LINES
7 7 ON OFF SENSE
BATT_SEL
56 56 BAT_ SOURCE_BATT_SEL
BAT_ SOURCE
12 12
TRU
14 14 CMP
16 16 RTN
26 26 MAN_TEST
36 36
BAT SER DATA
24 24
THERM_SENSE
B+_SENSE
18 18
22 22 BATT+_SENSE
3 3
3 SEC OUT
5 5 MOB PORT SENSE
HC11_VRH
39 39
2 21 160 KHZ PACER CLOCK
1
CR652
Q636 6 60
NEG_V
0
BOOST
B +
XFR
Q635
CR632
58 58
Q610 REF 4.75V
23 23
Q630 LOGIC 2.75V
B+
Q620 41 41
REF 2.75V
31 31
9 9
RESET
11 11
27 27
C650
37 37
35 35
J4
PWR SW
1
1 1
2
54 54
ALERT-OUT
+
U760
LS1
-
Q760
28 28
ALERT-EN
DAUGHTER BOARD
60 U700
DIGIT BUS
RSSI
FREQ. ERROR
22 58
DATA BUS
ADDRESS BUS
LOG_SPI_CLK
6 8
MOSI
6 7
78
UPC
MISO
6 6
U800
LOG_2.75
Q820
50
31,70,71
Q821
49
Q824
40
56
24
54
RESET
57
77
4.2V MHZ
28
ADDRESS BUS
21
DATA BUS
26
56 69 30 39
R1042
61
22 25
2.7V P.P.
47
LOGIC 2.75V 20
48
28
SNAP4 IC
24
U700
19
23
REF 2.75V
29
EXT-AUD-OUT
44
27
WATCHDOG 55
RX
26
RESET 63
46
SPKR_OUT
43
18
17
BOOM-MIC-IN
41
TX
AUDIO_IN
39 49
50
MICP
36
56
800 MV. P.P.
45
60
RING_OUT
2.7V P.P.
P800 J800
20 20
25 25
LOG_2.75
EPROM
U840
38
8,9
DISPLAY
PROCESSOR
31
U900
30
2 5 6
EEPROM
7,8 U850
6 1
DATA 2 2
SPI BUS
CLOCK
4 4
EE_EN
TX POWER CONTROL 45 45
PWR_ DETECT
47 47
13 13
IF_ENABLE
SPI BUS
SYNTH ENABLE
8 8
TX ENABLE 51 51
6 6
PA_CTRL_ENABLE
DEMOD_AUDIO
33 33
RX DISABLE
17 17
BACKLIGHTS
C
Q921
BACKLIGHT_EN B
FM MOD
32 32
30 30
PHASE MOD
4.2 MHZ
38 38
4.2 MHZ (3.84 mhz BRM)
J970
19