Panasonic KX-TGE674 Service Manual page 11

7.5. Schematic Diagram (Handset_Main)
VBAT
To Battery
BAT+
C6 C120
K0.1u
NC
GND GND
BAT-
R45 C15
0.1 J68p
SHORT2
GND For Power Failure
Function
CHG+
CHG+
C5
K0.1u
To Charge
Terminal
GND
CHG-
GND
VBAT
POWER
OFF
VOL_DOWN
LEFT
RIGHT
AST
SHARP 0
3 2 1
6 5 4
9 8 7
CP4V
BELL LED
(US/EU = AMBER)
LCD B/L LED
( Amber )
CP4V
KEY B/L LED
(US/EU = AMBER)
RA2
680
Q6
GND
Charge Current
*R10
*Q10
1.0
*Q12
*Q11
*R13
1k
*R12
220k
Q2
*R11
680
C19
K1000p
GND
GND
R2
R9
30k
30k
R8
R7
4.3
820
*Q3
When on Charge
Q4
1s
R6
10k
Q9
GND
VOL_UP
CKM
FLASH SP
UP SOFT_A
TALK CALLBLOCK
DOWN
SOFT_C
LED11
LED12
LED20
(US/EU = White)
LED21
1
Y 2
3
RE1
NC
GND
1.8V
RA3
680
R15
1.5k
B/W LCD Unit
1.8 inch Wide Monochrome LCD
SOCp
SOCn
POWER
CHG_DET
CHG_CTRL
BELL_LED2
C121 C1
J68p 220u
GND GND
P2_3
STB_D 52
STB_D
STB_C 53
STB_C
54
C122
GND_20
J68p
MIC+ 55
MIC+
GND
56
GNDA
57
CP3V
BAT+/VBAT1
58
CP3V
CP3V
59
GND_21
60
GNDA
GND_22
61
GND_23
LCD_CD 62
LCD_CD
LCD_CS 63
CHG_CTRL LCD_CS
STB_A
64
P0_7
KIN_5
CHG_DET 65
KIN_5
KIN_4
BATTERY_ON 66
KIN_1 KIN_4
CHG+
67
KIN_1
68
POWER
69
70
71
KIN_5
KIN_4
C125
J68p
KIN_3
GND
KIN_2
C124
J68p
C33
K0.1u
KIN_1
GND
R34
STB_E
100k
STB_D
STB_C
R32
STB_B 100k
GND
STB_A
BELL_LED1
BELL_LED2
LCD_LED0
KEY_LED
LCD_CS
LCD_RESET
LCD_CD
LCD_SCL
LCD_SID
CP3V
C92 C91 C93
K1u K1u K1u
GND
[Heat Seal]
KX-TGEA61 SCHEMATIC DIAGRAM (Handset_Main)
11
KX-TGE674/KX-TGEA61
ANT pattern
ANT-Short
GND
ANT-Short-GND
ANT1_TP
GND
GND_10
34
KIN_3
33
KIN_2
32
GND_9
31
LCD_RESET
30
LCD_SCL
29
LCD_SID
28
GND_8
27
1.8V
26
CP4V
GND_7
25
GND_6
24
CP4V
23
LCD_LED
22
UTX
21
URX
20
*MODULE
GND_5
19
SP+
18
C123
GND
J68p
GND
SP phone RX
GND GND
Handset RX
GND
GND
Rcv+
C70 C69
J68p D10p
Rcv-
C71 C68
D10p
J68p
GND GND GND GND
Handset TX MIC+
C113
D10p
SP phone TX
MIC-
R500 NC
1
Headset Tx
2
3
4
Headset Rx
C16 R91 L9
5
10
10uF
C82
C83 C87 C84
NC NC K1000p NC
GNDA GNDA GND GND GNDA
Test Pattern Test Pattern
for Pattern for Carbon
HAK_CL1 CARBON_CL1
NC: No Components
VBAT
RA10
UTX VBAT
URX GND
220
GND
KIN_3
KIN_2
LCD_RESET
LCD_SCL
LCD_SID
1.8V
1.8V
CP4V
LCD_LED0
SP+
SPEAKER
+
-
D4 D3
NC NC
GND GND
RECEIVER
+
-
D2 D1
NC NC
GND GND
MIC
AP1
*CN4
Headset Jack