Kenwood TKR-851 Service Manual page 82

A
TKR-851
DISPLAY UNIT (X54-3330-21) (A/2)
1
PF1 PF2
S502
S501
2
DC SW
Q512
UPA672T
3
4
5
DISPLAY UNIT (X54-3330-21) (B/2)
6
A
J601
7
E08-0877-05
72
X54-333 1/2
B
SCHEMATIC DIAGRAM
PF3 PF4
S503 S504
DC SW DC SW
Q513 Q514
UPA672T UPA672T
C512 0.01u
9 8
QS VSS
10 7
Q'S Q4
11 6
Q8 Q3
12 5
Q7 Q2
13 4
Q6 Q1
14 3
Q5 CLK
15 2
OE DATA
16
1
VDD STRB
SHIFT
IC503
REGISTER
BU4094BCFV
CURRENT
PROTECTOR
D603
MINISMDC020
R604 1k
R605 1k
D601
DA204U
A
D601,602
SURGE ABSORPTION
C
Note : The components marked with
a dot (
PF5 PF6
S506
S505
UPA672T
D512
DA204U
D512,513,514
SURGE
ABSORPTION
C511 0.01u
8
9
QS VSS
7
10
Q'S Q4
6
11
Q8 Q3
5
12
Q7 Q2
4
13
Q6 Q1
3
14
Q5 CLK
2
15
OE DATA
16
1
VDD STRB
IC502
BU4094BCFV
Q525
2SK1824
D508 D509
DA204U DA204U
SURGE ABSORPTION
CN601
VR601
1
10k
2
3
4
5
6
7
8
9
10
11
D602
DA204U
A
A
D E
• ) are parts of layer 1.
D506
CP501
LA-501DD
470*4
1 10
5
6
7SEGMENT
C519 0.01u
SHIFT
REGISTER
Q517
UPA672T
8
9
QS VSS
7
10
Q'S Q4
DC SW
6
11
Q8 Q3
5
12
Q7 Q2
4
13
Q6 Q1
3
14
Q5 CLK
2
15
Q516
OE DATA
16
1
VDD STRB
DC SW
IC504
BU4094BCFV
D513 D514
DA204U DA204U
R539 1k
R540 1k
SHIFT
REGISTER
D510 D511
DA204U DA204U
D508-511
CN501
11
VLI
10
5M
9
GND
8
NC
7
SB
6
NC
5
GND
R502
4
PTT
3
MIG 0
2
MIC
R503
1
HK
C501
10u10
0
CLK
SOE
BUSYC
POWLEDC
DAT
PTT
HK
5M
VLI
SB
MIC
MIG