Text preview for : 8088_3.pdf part of Motorola V8088 Level 1, Level 2, File 8088_3, File 8088_4 - Service Manual (4.044Kb) pag. 59



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PAC_275

NPA_MUTE

PA_B+

DCS_SEL

MIX_275

GSM_LNA275

DCS_LNA275

GSM_SEL

RF_V2

B+

V3

V2

EXT_B+

D E J700 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 27_PIN_FLIP_CONN. BKLT+ ALRT-RED V2 V2 V2 GND D7 NC D6 D5 D4 V2 D3 D2 D1 V2 D0 R_W A0 NC DP_EN RESET SPKR+ GND SPKRALRT_GRN RTC_BATT B
10 1 4 5 6 7 5 4 4 2 3 7 6 5 8 7 8 4 26

H
25 23 1

2
DISPLAY CONN.
2

4

6
A GSM RX ANTENNA SIGNAL DCS RX ANTENNA SIGNAL AMPLIFIED RX ANTENNA SIGNAL RX SPEAKER LINE+ RX SPEAKER LINERX VCO TUNING VOLTAGE TX / RX VCO FEEDBACK LINE TO MAGIC TX MIC LINE+ TX VCO TUNING VOLTAGE FILTERED PA OUTPUT SIGNAL PA DETECT LINE PA TUNING VOLTAGE PA TUNING VOLTAGE PA TUNING VOLTAGE PA TUNING VOLTAGE MAGIC 13MHz RX SPI BDR RX SPI BFSR RX SPI BCLKR TX SPI BDX TX SPI BCLKX

26MHz
1 2 14

B J600 1 SIM CONN. 2 3 4 I 5 1 2 3 4 GND SIM_VCC SIM_VCC *SIM_RST SIM I / O SIM_CLK EXT CONN. 6 7 8 9 10 11 12 13 R S T C 14 15 C
15 PIN EXT.CONN.

L

D E F G H I K L M N O P Q R S T U V

GND SW_RF GND BATT_FDBK MAN_TEST_AD RS232_TX RS232_RX EXT_CHG_EN ON / OFF GND UPLINK DOWNLINK DSC_EN EXT_B+ GND

PAC

GND M N
1 8

BATT CONN. J604
XTAL_BASE XTAL_EMIT CP_TX CP_RX

THERM U V P BATT_SER_DATA
J6 CLK_OUT J2 SDTX G7 TX_CLK

E1

E2

B1 A1

F

5 6

PRSC_IN A3

Q MAGIC
J7 PLL_CP J9PLL_EMIT H9 PLL_BASE

G
SDRXG8 SDFS G9 SCLK_OUT F7

O

1

K BATT+

PRE_INA7

1

3

5

DualBand DAO (V8088)_8486183p01

A

B+

BATT+

SF_OUT

TVCO_250

DCS_LNA275

GSM_LNA275

V1

RF_V2

TX_EN

RF_V1

Vref

V_BOOST1

MIX_275

PA_B+

D_TX_VCO

SF_OUT
M

PAC_275
N

G_TX_VCO

V_SIM1

P

O

Q R

K

S

SH300
9 8 7

SH200

T U V
G14 CLKIN
BFSR B4 BDR C4 BCLKR A3 BDXC6

12 13 14

IPA DCS

11

EPROM
2 1 8 7

L 900/1800MHz

16 9

K5 GCLK D7 GCAP_CLK

BCLKX A2

J800 1 2 3 WHITE_CAP

14 PIN_KEYBOARD_CONN

SH700
G KEYBOARD CONN. I

GND BKLT+ GND BKLT+ HS_INT KBC3 KBC2 KBC1 KBC0 KBR2 KBR1 KBR0 PWR_SW V2 26MHz

13MHz_CLK
E1

11 12 13

IPA GSM

B

A

4 5 6 7 8

Y230
E2

U913
MAGIC J6 MAGIC_13MHz G14

14 16

2 1

TX_VCO IC C F

18051880MHz

945MHz

SRAM

9 10 11 12 13 14

U700
WHITE_CAP D7 GCAP_CLK F5 K5 C7 GCLK (32kHz)

942,5MHz 1842,5MHz
C7

Y900
CLK_IN

U900
GCAP_II

32kHz

HS CONN.

32,768kHz

400MHz

A7 XTAL1 B7 XTAL2

F5

4

2 1

D
SPKR+ H7

32,768kHz

GCAP 4.0
AUX_MICMIC_OUT SPKR-

E

5

8

H6

H3

K1

REVISIONS
H GSM SERVICE SUPPORT GROUP LEVEL 3 Signal Flow DualBand DAO (V8088) 09.02.00 Rev. 1.0 8486183p01 Page 1

PAC_275

V2

HEAD_INT

DCS_LNA275

GSM_LNA275

SW_VCC

RVCO_250

SF_OUT

LS_V1

DCS_VCO

VREF

V1

Michael Hansen, Ralf Lorenzen, Ray Collins