RCA RDR2600, Service Manual

Page: 26 / 40

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DATE:
2016.04.02 1
PD420-KEY BOARD
1.0
LCD
BACKLIGHT LED
1
PD420
LED1 GREEN
R1
1K
S1
3
R2
1K
R3
1K
R4
1K
R5 1K
S2
6
S3
9
S4
#
S5
2
S6
5
S7
8
S8
0
S9
1
S10
4
S11
7
S12
*
S13
MENU
S14
OK
S15
BACK
S16
R-SHIFT
S17
L-SHIFT
R6 1K
R7 1K
R8 1K
R9 1K
C16
470P
R20
47K C17
105
LED2 GREEN
LED3 GREEN LED4 GREEN
LED5 GREEN LED6 GREEN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
LCD1
C1 105
C2 105
C3 105
C4 105
C5 105
C6
104
C7
104 C8
NC
C9
105
R15
2K2
C10
104
C11
105
R16
0R
C12
103
C13
10U/10V
R13 1K
R14 1K
R22 1K
R23 1K
R24 1K
R25
100R
R26
100R
L1
BLM18AG601S
1
2 3
LE
D7
R10
330R
R11
330R
R12
330R
R17
330R
R18
330R
R19
330R
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
J1
CON-20P
MIC2
MIC
C20
100P
L2
BLM18AG601S
L3
BLM18AG601S
C14
220P
C15
220P
E
B
C
Q1
FMMT717
E
B
C
Q2
DTC144EE
LAMP
K0
K1
K2
K3
K4
K5
K6
K7
K8
LCD_DB7
LCD_DB6
LCD_A0
LCD_RES
LCD_CS1
KEY-3V3
GND GND
GND
GND GND
GND GND GND GND
GND
GND
MIC2-
MIC2+
GND GND
GND
GND
MIC-
MIC+
CS
RES
AO
DB6
DB7
VDD
VOUT
C3+
C1-
C1+
C2+
C2-
V4
V3
V2
V1
V0
GND
RDR2600 UHF
According to the keypad schematic diagram
25