Panasonic KX-HDV20RU Service Manual ▷ View online
17
KX-HDV20 Series
9.2.
Assembly for Lead wire
Perform this process in reverse when taking the unit apart.
Purple
Gray
Solder
Set connector, surely.
FFC CABLE
Clamp wire to each slot
-Wire from LCD (grey and purple)
-Wire from LCD (grey and purple)
Cable is to be inserted into connector
<NG>
<OK>
Note:
18
KX-HDV20 Series
10 Maintenance
10.1. Terminal Guide of the ICs Transistors and Diodes
10.1.1.
Main Board
10.1.2.
Back Light Board
C2HBCY000150
PNWIHDV20NE C1CB00003456
C0EBE0000444
C0DBAYY01648
B1ABGE000014,B1GDCFGJ0008
B1GBCFGN0022,B1ADCF000020
B0ZBZ0000156
B1GBCFGN0022,B1ADCF000020
B0ZBZ0000156
D4ED18R00008
B0JCDD000001
B3AFB0000370
B3AEB0000397
1
4
8
5
1
2
4
3
Cathode
Anode
B3AFB0000370
Cathode
Anode
19
KX-HDV20 Series
10.2. How To Replace a Flat Package IC
Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a sol-
dering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
dering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
10.2.1.
Preparation
• PbF (: Pb free) Solder
• Soldering Iron
• Soldering Iron
Tip Temperature of 700°F ± 20°F (370°C ± 10°C)
Note: We recommend a 30 to 40 Watt soldering iron. An
expert may be able to use a 60 to 80 Watt iron where some-
one with less experience could overheat and damage the
PCB foil.
Note: We recommend a 30 to 40 Watt soldering iron. An
expert may be able to use a 60 to 80 Watt iron where some-
one with less experience could overheat and damage the
PCB foil.
• Flux
Recommended Flux: Specific Gravity
0.82.
Type
RMA (lower residue, non-cleaning type)
Note: See About Lead Free Solder (PbF: Pb free) (P.4).
10.2.2.
Removal Procedure
1. Put plenty of solder on the IC pins so that the pins can be
completely covered.
Note:
Note:
If the IC pins are not soldered enough, you may give
pressure to the P.C. board when cutting the pins with
a cutter.
pressure to the P.C. board when cutting the pins with
a cutter.
2. Make a few cuts into the joint (between the IC and its
pins) first and then cut off the pins thoroughly.
3. While the solder melts, remove it together with the IC
pins.
When you attach a new IC to the board, remove all solder
left on the land with some tools like a soldering wire. If some
solder is left at the joint on the board, the new IC will not be
attached properly.
left on the land with some tools like a soldering wire. If some
solder is left at the joint on the board, the new IC will not be
attached properly.
10.2.3.
Procedure
1. Tack the flat pack IC to the PCB by temporarily soldering
two diagonally opposite pins in the correct positions on
the PCB.
the PCB.
Be certain each pin is located over the correct pad on the PCB.
2. Apply flux to all of the pins on the IC.
3. Being careful to not unsolder the tack points, slide the sol-
dering iron along the tips of the pins while feeding enough
solder to the tip so that it flows under the pins as they are
heated.
solder to the tip so that it flows under the pins as they are
heated.
10.2.4.
Removing Solder From Between
Pins
Pins
1. Add a small amount of solder to the bridged pins.
2. With a hot iron, use a sweeping motion along the flat part
2. With a hot iron, use a sweeping motion along the flat part
of the pin to draw the solder from between the adjacent
pads.
pads.
20
KX-HDV20 Series
11 Schematic Diagram
11.1. Main
3
Flash
2
XIN 13.824MHz
1
HDV20 RESET RSTN
4
Self-Label LCD
5
XTALIN 24MHz
6
7
USB D+/D- Full-Speed
C
E
B
A
D
F
3
6
4
2
5
8
7
LED_COM0
KEY_OUT2
KEY_OUT3
KEY_OUT4
KEY_IN0
KEY_IN2
KEY_IN3
KEY_IN4
LCD_SID
LCD_SCL
LCD_SCL
nLCD_RST
LCD_CD
nLCD_CS
KEY_OUT1
LED_STB1
LED_COM1
LED_STB3
LED_COM4
LED_COM3
LED_STB2
nUSB_RST
LED_COM2
LCD_BL
KEY_IN1
LED_STB0
LED_STB2
LED_STB1
LED_STB3
LED_STB4
LED_STB5
LED_STB6
LED_STB7
I2C_SDA
I2C_SCL
I2C_SCL
LED_STB4
LED_STB5
LED_STB6
LED_STB7
I2C_SCL
I2C_SDA
USB_DM
USB_DP
nUSB_RST
LED_COM0
LED_COM1
LED_COM2
LED_COM3
LED_COM4
LED_STB0
KEY_IN4
VBUS_IN_1
KEY_IN0
KEY_IN1
KEY_IN2
KEY_OUT0
KEY_OUT1
KEY_OUT2
KEY_OUT3
KEY_IN3
KEY_OUT4
VBUS_IN_1
USB_DP
USB_DM
USB_DM
KEY_OUT0
nLCD_CS
LCD_CD
LCD_BL
nLCD_RST
LCD_SCL
LCD_SID
C101
1u
C155
10u
C115
0.1u
C106
0.1u
C131
6p
L112
R104
0
C121
0.1u
R113
33
C132
6p
L108
150n
L109
R109
0
3.3V
R111
1M
C105
0.01u
C118
0.1u
R112
1
R115
4.7k
C110
0.1u
L116
470
C123
0.1u
3.3V
C104
0.01u
C102
1u
L115
470
C159
22u
C116
0.1u
L105
22u
1.2V
C103
0.1u
C154
10u
1.8V
1.8V
3.3V
1.2V
C120
0.1u
C119
0.1u
DG
C108
0.1u
C114
0.1u
IC102
1
*CS
2
DO/IO1
6
CLK
7
*HOLD/IO3
3
*WP/IO2
8
VCC
4
GND
5
DI/IO0
TMS_1
TDI_1
TCK_1
TDO_1
RTCK_1
UART_DG
UART_RXD
C109
0.1u
C124
0.1u
C125
0.1u
C126
0.1u
C117
0.1u
C122
0.1u
C156
NC
R136
10k
R110
1k
C152
4700p
IC104
1
VSS
2
VDD
3
CD
4
OUT
DG
C129
1000p
1000p
DG
DG
R116
47k
5V_DET
3.3V
L111
L113
C113
0.1u
C127
0.1u
R103
0
IC101
83
TDI
84
TCK
85
TMS
86
RTCK
87
GPIO10
88
GPIO11/SPIM_DI
89
GPIO12/SPIM_DO
90
GPIO13/SPIM_CLK
91
GPIO14/SPIM_CS
92
VDD3
93
VCC4
94
GPIO15
95
GPIO16
96
GPIO18
97
GPIO19
98
GPIO20
99
GPIO22/XD7
100
GPIO23/XD6
101
GPIO24/XD5
102
GPIO25/XD4
103
QCSN1/EXGPIO0
104
QCSN0
105
DQ3
106
QVCC
107
DQ1
108
QSCLK
1
DQ2
2
DQ0
3
GPIO26/XD3
4
GPIO27/XD2
5
VCC1
6
XD1/EXGPIO9
7
XD0/EXGPIO10
8
XOEN/EXGPIO6
9
XWEN/EXGPIO7
10
XA0/EXGPIO8
11
XCSN3/EXGPIO5
12
VDD_DPU_DAIF
13
PLL2VSSA
14
PLL2VDDA
15
PLL1VDDA
16
PLL1VSSA
17
VDD1
18
COREOUT
19
VBAT
20
DOUBCAP2N
21
DOUBCAP2P
22
DOUBCAP1N
23
DOUBCAP1P
24
DOUT3V0
25
DOUT4V5
26
DOUT2V5/DCIN0/LIN0
27
LEDSINK2/DCIN1
28
DCIN2
29
DCIN3/LIN1
30
LEDSINK1/PWM1
31
VREF
32
VCCA
33
MIN
34
MIP
35
HSMIN
36
HSMIP
37
MPWR
38
SPOUTP
39
VCCPA
40
SPOUTN
41
HSSPOUTP
42
LOUT
43
PWM0
44
DCINS
45
XOUT
46
XIN
47
VDD_APU
48
VBAT_APU
49
VDD_IF
50
VCC_FE_IF
51
VCC_PA
52
BAL_OUT2
53
BAL_OUT1
55
ANT1
56
GND_RF
57
ANT2
58
TEST
59
RX_SW
60
LNA_INN
61
LNA_INP
62
ATST_N
63
ATST_P/EXT_LNA
64
RSTN
65
VCC_VCO
66
GPIO17/[ON/OFF]
67
VDD2
68
GPIO0/I2C_SCL
69
GPIO1/I2C_SDA
70
GPIO2/TDM_TXD
71
GPIO3/TDM_RXD
72
GPIO4/TDM_FSYNC
73
VCC2
74
GPIO5/TDM_SCLK
75
GPIO6
76
GPIO7
77
GPIO8
78
GPIO9
79
VCC3
80
USBDM/GPI28
81
USBDP/GPI29
109
GND
54
TX_SW
82
TDO
R139
68
R140
68
R142
68
R141
68
DG
3.3V
DG
Q114
4.7k
47k
LED108
R
LED107
R
Q117
4.7k
47k
LED120
R
LED102
R
Q116
4.7k
47k
LED104
R
LED114
R
DG
Q111
4.7k
47k
LED106
R
5V
LED110
R
LED117
R
RA101
NC
1
8
2
7
3
6
4
5
5V
LED118
R
LED119
R
LED111
R
LED116
R
LED113
R
LED109
R
LED103
R
LED101
R
LED115
R
LED105
R
LED112
R
Q113
4.7k
47k
Q112
4.7k
47k
Q115
4.7k
47k
Q110
4.7k
47k
RA102
NC
1
8
2
7
3
6
4
5
DG
D104
D102
3.3V
DG
L102
2
3
41
R119
12k
1
R118
68
R117
68
UART_TXD
DG
D101
NC
R101
0
D103
NC
DG
L101
2
3
41
R102
0
5V
DG
TP_LCD_A1
DG
R138
47k
TP_LCD_K1
C112
0.1u
16
L114
R137
4.7k
DG
12V
L103
22u
TP_1.8V
TP_1.2V
PWM1
nDSS_RST
Q118
R143
1k
R148
10k
DG
Q119
R144
1k
R149
10k
DG
Q120
R145
1k
R150
NC
DG
Q121
R146
1k
R151
NC
DG
Q122
R147
1k
R152
NC
DG
DG
R153
1k
C162
0.01u
DG
DG
C204
NC
DG
DG
C211
NC
C240
22uF
6.3V
R210
62k
1
IC202
2
N
I
V
8
S
S
3
W
S
4
1
D
N
G
5
B
F
7
N
E
1
T
O
O
B
6
P
M
O
C
9
2
D
N
G
C220
10uF
16V
C207
1000p
DG
C203
0.047u
16
DG
C213
22uF
6.3V
R204
100k
C217
22uF
6.3V
C209
NC
5V
C232 0.1u
C222
10uF
16V
R212
0
DG
R209
47k
1
L203
15u
L202
10u
C221
10uF
16V
R207
11.8k
1
DG
C235
NC
C206
100p
DG
C225
3300p
C208
NC
DG
12V
R214
22k
C215
22uF
6.3V
R203
100k
C212
22uF
6.3V
3.3V
DG
C231
NC
C229
NC
C239
0.1u
DG
R208
15k
1
C202
0.047u
16
C214
22uF
6.3V
R211
0
C218
22uF
6.3V
C205
NC
IC201
2
N
I
V
8
S
S
3
W
S
4
1
D
N
G
5
B
F
7
N
E
1
T
O
O
B
6
P
M
O
C
9
2
D
N
G
R202
0
C252
3300p
DG
R201
0
5V_DET
DG
C216
22uF
6.3V
5V
R213
12k
C227
NC
TP_5V
C219
10uF
16V
TP_3.3V
UART_3.3V
C107
0.1u
X102
24MHz
C137
6p
R154
0
C136
6p
R155
1M
X101
13.824M
LCD_BLA
LCD_BLK
DG
nDSS_RST
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
C111
22u
6.3
R122
0
R121
0
R123
10k
R127
4.7k
R120
0
R126
100k
C145
0.1uF
C144
0.1uF
C143
0.1uF
C142
0.1uF
C141
0.1uF
C133
1uF
C134
1uF
C135
1uF
C140
0.1uF
C130
1000pF
C161
1uF
VBUS_IN
VBUS_IN
VBUS_OUT
VBUS_OUT
R157
1k
R156
1k
DG
DG
DG
DG
DG
DG
DG
CN101
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
LCD_TEST
C149
2.2uF
10V
C150
2.2uF
10V
C148
0.22uF
25V
DG
FF1
12
FF2
12
FF3
12
FF4
12
FF5
12
FF6
12
FF7
12
FF8
12
FF9
12
FF10
12
FF11
12
FF12
12
FF13
12
FF14
12
FF15
12
FF16
12
FF17
12
FF18
12
FF19
12
FF20
12
PAGE
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
C146
0.01uF
16V
L106
R159
4.7k
R125
10k
R124
10k
R1604.7k
STRAP
IC103
10
VDDA33_2
11
TEST
12
PRTPWR1/BC_EN1
13
OCS_N1
14
CRFILT
15
VDD33_1
16
PRTPWR2/BC_EN2
17
OCS_N2
18
NC5
19
NC6
20
NC7
21
NC8
22
SDA/SMBDATA/NON_REM1
23
VDD33_2
24
SCL/SMBCLK/CFG_SEL0
25
HS_IND/CFG_SEL1
26
*RESET
28
SUSP_IND/LOCAL_
PWR/NON_REM0
29
VDDA33_3
30
USBDM_UP
31
USBDP_UP
32
XTALOUT
33
XTALIN/CLKIN
34
PLLFILT
35
RBIAS
2
USBDP_DN1
3
USBDM_DN2
4
USBDP_DN2
5
VDDA33_1
6
NC1
7
NC2
8
NC3
9
NC4
27
VBUS_DET
36
VDD33_3
1
USBDM_DN1
37
VSS
F101
32V
3A
3A
C163
100pF
DG
C164
100pF
DG
L110
R162
220
L204
R161
100
JK101
6
5
4
3
2
1
7
JK102
6
5
4
3
2
1
7
Q101
C165
220pF
C128
100pF
Q102
4.7k
10k
Q103
4.7k
10k
Q104
4.7k
10k
Q105
4.7k
10k
Q106
4.7k
10k
Q107
4.7k
10k
L104
0
D106
D107
D108
R129
220
R131
220
R132
220
R133
220
Q108
4.7k
10k
Q109
4.7k
10k
R128
120
R130
120
R134
120
R135
120
C166
22pF
C167
22pF
DG
DG
LED121
B
LED122
B
LED123
B
LED124
B
LED125
B
LED126
B
LED127
B
LED128
B
LED129
B
LED130
B
LED131
B
LED132
B
LED133
B
LED134
B
LED135
B
LED136
B
LED137
B
LED138
B
LED139
B
LED140
B
D110
3.3V
D111
DG
D116
D117
D114
D112
D115
D113
DG
3.3V
R170
NC
R105
33
R106
33
R107
33
R108
33
R158
1M
C147
0.1uF
25V
Q123
R205
10k
R206
3.3k
C210
4700p
To Self-Labeling LCD
USB HUB
Lower DSS
Upper DSS
FF1
FF2
FF3
FF4
FF5
FF6
FF7
FF8
FF9
FF10
FF11
FF12
FF13
FF14
FF15
FF16
FF17
FF18
FF19
FF20
Port SWAP by software
Port SWAP by software
KX-HDV20 Main Board
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