Text preview for : 29_01_01.pdf part of PANASONIC KX-TC1222 SERVICE MANUAL



Back to : KX-TC1222BGB.part1.rar | Home

SET SPEC(10CH)

49.97MHz
ANTENA

46.97MHz 60dBuVemf 1kHz/3kHz MOD
RFRX

RXRF=-38.5dBm
DUP802 IN VDD GND 2
6 5

T802 NC RXGND
4 7 3 2 1 1

JP805

C841 NC

ANT RXRF=-4.3dBm TXRF=-46.6dBm
1

1 3

OUT

4

C855

1

C847

1 1

R828

1

JP802 0

DUP801 NC NC C845 0
1

6.3V10

ITEM TX-VCO 10.7MHz RX-VCO TX-POWER RXRF=-42dBm MIC-MOD DATA-MOD SP-OUT RX-SENSITIVITY NOISE-SQ RADIATION POWER RX-SENSITIVITY CONSUMPUTION CHARGE BAT-LOW CF801 10.7MHz RXRF=-35dBm CF802 R830
1

D803 D802 NC NC

DATA 1.5V 1.1V 11dBm -50dBm / 1KHz 2.0KHzdev 5.5KHzdev -21dBm/VOL-M 3KHzdev / 1KHz , 60dB 0dBuVemf NC NC 3m 3m NC TALK NC NORMAL 30mA NC CONDITION

1

1

L801

1

R826

0

R829

NC

330

0

NC

1

1

+

455kHz

0

1

2

3

2

5

4

3

1

1
1

IN VDD GND GND OUT 6 GND 2

C840 L803
1

NC C843 K0.01 C842 6.3V10
1

R827 3 4 5
1

RXRF=-38dBm
IFOUT IFGND C850 Z0.1 1 C851 Z0.1 C852 1 Z0.1 750 J68P C849 C854 K0.1
1 1 1 1 1 1 1

JP801 0

L802 NC

NC

22 C844 Z0.1 K0.01 C846 K0.01 Z0.1

1

1

+

JP804 0
1

1

C848

R831

C838

R832 1.5K

RXRF=-48.5dBm 46.97MHz
RXVCO R825
1

C853

C839 NC 0

JP803 NC
1

1

1

NDTC

RXAF=-28.5dBm
NOISE DTC

RXAF=-16dBm
R802 56K
1 1

42 41 40 39 38 37 36 35 34 33 32 31 30 29
GND1 VDD1 1st MIX

T801 K0.01 43
4 7 3 VcapRX 1

10K C837

2nd MIX 1st LOCAL OSILLATAR

R801 C801 390K J120P 28 27
1 1

C803 K0.1
1

1kHz RXAF=-18.5dBm
DTCOUT

SQ

FILTER

SQ

C836 J22P

C835 NC

44 45

1

1

FILTER 5.5V REG 25mA max TO SQ OUT

1

2 5 1

C802 J120P R803 NC 26
PRE AMP

+0.5dB

46 R824
1 LD(RX)

1

RX-MUTE EXPANDER

25 24

C804 R804 33K R806 K0.047R807 47K K820P 1 1 1
1

6

47 R821
1

RX PD LD(TX)

1

1.0K 8.2K C834 K0.22 R823 C832 K0.22 R822 33K

48 49
PLL

TX PD

4.7K C830 Z0.1 50
Fin TX

10 bit programmable counter

R805 82K
/8 E-DET ZAP

23 22 21

NC C806 K4700P R809 1 C808 K0.047 R808 15K
1 1 1 1

1

14 bit programmable counter

C805
1

C807 0 C810 K0.1
1

C833 K0.01

14 bit programmable counter GND3

C809 K0.1
1

0

C811 K0.01

1

1

C831 NC

10.24MHz C829 G27P X801
1 1

C812 K0.1 R810 4.7K 20 19 C813 Z0.1 18
LINE AMP COMP RX DATA OUT 1

51 52 53

GND

VOL801 NC

1

1

1

1

1

ZAP PE(GND) POWER DOWN

3

SG OUT

1

SIGOUT
SIG_IN

54 55

SIG OUT

LD(TX/RX)

17 16 15

R812 8.2K
1

1

1

1

2

C828 G39P

RXAF=-19dBm

R811 12K SP1 C814 K0.018SP3 SP4 SP2

1kHz

DATA MCU

ATT(0/2dB) SPLATTER FILTER

LIMITTER MIC AMP POWER DOWN

PLL_DATA

TXVCO JP806
1

56
PLL_CLOCK

CLK C DET VDD EN MIC MUTE

VDD2

GND2

RXAF=-21dBm
RX_DATA

1

2 K0.1

3

4 C825 J150P

5 C824 K1500P

6 C823 K0.1

7 C822

8

9
1

10 11 12 13 14 C820 6.3V10

0 JP807
1

C827

0

NC

R819 270K

1

C815 Z0.1 PDOWN

R818

RX DATA 500Hz/1kHz 3.5V

2.2K C821

R603

PLL_EN

1

TXRF=7dBm
TXPOWER
RF_PWR_CONT

TXAF=-17dBm 1kHz
C826
1

1

2

PSAVE

VOL802 C818 R814 5K K0.047 2.2K 1 R817 C819 10K K0.015 1 R815 1 220
1 1 3 1

MIC + MIC1 1 1

R820

1

22K

NC

-40dBm 1kHz

6.3V10

MIC2 C816 D801 K0.01 NC

NC

R816 2.2K

C817

PWR_SAVE

TXAF=-20dBm 1kHz

1

+

2

Q902 NC
3 1

C914

1

NC

TX_PWR

K0.01

1

C915

1 3

R911 22

C908

J22P

R912 2.2

DUP901 1 3 4 6 OUT VDD GND VDD IN 5 GND 2 TXGND R909 NC
1

R910 22
1 2 3

1

1

Q901 T901
3 7 4

1

VOL901 NC
1 VDD 2 T-E 3 T-C

IC901
OSC OSC DRIVE GND F out 6 5 4

2 1 5

6

C902 K0.1

C912 K0.01

C907 K0.01

C913 Z0.1

C906 J27P

C910 K0.01

R908 100

VD901

TXRF=-3dBm 49.97MHz

TXRF=5.5dBm 49.97MHz
1 1

C905 J27P
1 1

R904 47K

1

TXRF=-8.9dBm
R903 180K

R905 47K
1

1

1

1

R902 680K
1

R901 100K TX_DATA
1 1

1

1

C904 K0.012

C909 K0.01

C903 K0.022

C911 J47P

R907 68

1

R906 2.2K

1

1

1

C901 82K

1

1

1

(1)

R913 0

1

2

1

(2)

(3)

1

1

(4)(5)

1

1

1

1

J100P

IC801

+

(6)

LED607

LED606

LED605

LED604

LED603

LED602

LED601
1 1

1

1

1

1

1

1

SK0

SK1

SK2

SK3

SK4

SK5

SK6

SK7

S0

S1 DMON
1

S2

S3 DE
1 1 2

S4 DA ON EXIT DB
1 1 1 2

S5 DOWN
1

S6
1

S7 1 4 7
2 2

S8 RA2 330
1 1 2

K0
8

RA1 150

2 5 8 0

SK8

3 6 9 #

1

DN
1

DJ
1

DF
1

FUNC
2

LEFT
2 1

1

2

2

1

1

2

K1 K2
SK8 SK7 SK6 SK5 SK4 SK3 SK2 SK1 SK0

(6)

8

1

DO ON
1

DK
1

DG
1

DC
1 1

INT

2

RIGHT PAUSE
2 1 1 2 2

Q601
3 2

1

2

2

1

1

2

DP
1

DL
1

DH ON DD
1

1

TALK
2 1

UP

1

FLASH TONE
2 1 1 2

2

1

1

2

1

C601
1

K3 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 S-8 S-7 S-6 S-5 S-4 S-3 S-2 LED0 LED1 LED2 KEY-2 KEY-1 KEY-0 VREF LED3 S-1
2 1

Z1.0 D602 R701
TX_PWR
1

TG

R608 TEST
1

1 2 3 4 5

NC

KEY-3 TEST-MODE NO-USE NO-USE P-DOWN VREF VDD OSC2 OSC1

S-0 CHG-CONT

48 47

3

Q602

R602
1

LCD-RESET 46

10K

LCD_RESET LCD_POWER LCD_RS LCD_RW_WR LCD_E_RD LCD_CBS

1

L601 NC C610 6.3V220
1

LCD-POWER 45 RA3 2.2K LCD_RS 44 LCD_WR 43

C609 Z0.1

3.991MHz

X602

C611

C608 J33P
1

R607 NC

D601

0.68uH
1

1

1 1

6 7 8 9

IC601

LCD_E_RD 42 LCD_CBS 41 DB7 40 DB6 39 DB5 38 DB4 37 8 1 TX-POWER BEEP-CONT 36 RA4 2.2K POWER-SAVE TX-DATA 35 CHARGE-DTC BACK-LIGHT TEST-DATA RX-DATA NO-USE 34 33 C602 K0.1
1 8 1

+

LCD_DB7 LCD_DB6 LCD_DB5 LCD_DB4

C607 J33P
1

10 VSS 11 XI XO MMOD 12 UART-TX UART-RX 13 NO-USE 14 PLL/ROM-TXD ROM-RXD 15 16

C606 J33P C605 J33P

1

PLL/ROM-CLK

ROM-CS

NO-USE

NO-USE

PLL-EN

RESET

PLL_DATA

RA5 2.2K
1 8

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 C603 Z0.1

SIG-IN

BEEP

UG UTX UTX1 UG1 URX URX1

TX-POWER-CONT

X601 32.76KHz

TX DATA 300Hz/400Hz 3.4V

1

1

R813

330K

RF_PWR_CONT

1

RX_DATA

(4)(5)

PLL_EN

(3)

SIG_IN

RX_DATA

TX_DATA

PLL_CLOCK

PWR_SAVE

Q702 NC IC602 NC 1 CS SK DI DO VDD 8 NC TEST GND 7 6
1 3 2

R703 4.7
1

R704 NC
1

R707

(2)

2 3
LCD_POWER

R606 C604 NC 47K
1

R706 NC

4

5

D709 Z1.0 C706
1 1

D706
1

R705 56

1 1

C701 Z0.1

Q701

1

R605

1

NC

1

1

(1)

D701 Q706 D702 C704 NC D705 NC Q703 C705 NC BAT1 L703 BAT2 1.0uH 27 R708
1 1

1

L701

CHG3 CHG1

2

0.1uH CHG4

1 3

1

LCD_RESET

L704 0.68uH

CN701 2 C707
1 2

1

D704 NC

D707
1

L702
1 1

1

3

K0.47 K0.47

C718 K0.1 1 C717 K0.1 1 C716 K0.1 1 C715 K0.1 1 R715 C714 1 K0.1 820K

LCD_RW_WR

K0.47

D703

Z0.1

C703 Z0.1

LCD_E_RD

LCD_CBS

LCD_DB7

LCD_DB6

LCD_DB5

LCD_DB4

LCD_RS

R713 100K

1 C709 K0.01
1 1

1

C713 1 C712

1

1

C711

C710

BUZZ1 + R710 0
1

R709 150
1 3 1

1

1

1

Q704
3 1

2

RS RW_WR E_RD CSB DB7 DB6 DB5 DB4 VDD V4 V3 V2 V1 V0 VR V-OUT CAP2CAP2+ CAP1CAP1+ GND RESETB

CN702
KX-TC1222BGB SCHEMATIC DIAGRAM (HANDSET)

2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

R712 680K

1

Q705

C708 6.3V10

R711 1.2M

+

1

1

1

C702 Z0.1

Z1.0

NC

D708

0.1uH

CHG2

1

1

R702 100K

1

10K

1