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A B C D E F G H I J


TKR-850 PC BOARD VIEWS
1




DISPLAY UNIT (X54-3330-20) Component side view

J72-0756-02 B/2 J72-0756-02 A/2

CN601


11
1

GND




GND


VR601
MIG
MIC
PTT
VLI
5M

NC

NC




HK
SB




2
C603 C606 D506 D507
C602

S507




Q519




Q524
CP502 CP504




61




61
43




43
Q518




Q523
D603




34




34
1 6




1 6
D602

D601




Q516




Q522
61




61
43




43




Q521
Q517
R605




34
1 6
34
1 6
CP501 CP503
MAIN DC BACKUP
R601 GRN RED
3 D505
C605




C520
NC




C519
HOOK




R520




R519
MIC 1 16 1 16




Q511


Q510
D511

D510

D514

D513
MIG
R604




J601
C607




PTT IC504 IC505




Q525
GND R543




DG
S
SB 8 9 8 9
R517 R606




R544
NC 6 1
43




R541
Q506 34




R540
Q507




R539

R536

R535
R542




D512
16
RED
GRN Q504 R538
D503 D504




R534 R537
RED




R516
GRN




1


8
TX BUSY




IC502
4 +




C523
C522
D508




C521


O
G
I




16
IC507
11




+ C524




9
C525
Q508




IC506
MIC
5C
K5
K3
HK/RXD
SOE PTT/TXD
CLK
PSW
NC
SB




G
O
VLI




20
2




I
R524
5M D509




C511
R523




C513 CN502 GND C526
C516 R525 C517 NC
STB1

GND
R532
C514

R531
R530




MIG




DAT
VLI




SB
R521




K4
K2
K1




SB
C512




19
R522




CN501
1




S504 C508 C518
D502 NC S506




R502
C515




S502 S503 R529 R512 R511 C505
S505
C503 + GND
R513 8 1 R526




C506
C504
R514




R510
9


16




Q502
PTT
IC503




S501 R533 + R507
6 1 IC501




R505
MIG




+ C502




R503
C509
C510
43 Q514




C501 +
5 4 MIC
8


1




5




R509
Q513 16




R508
Q512




R506
16
VR501 HK 34
D501
34 C507 Q501 1 Component side
Foil side




DTA144EUA 2SC4226 2SB1132 DTA114EUA LA4422 NJM4558E DAN235K TA78L05F DA204U MA742
DTC363EK 2SC4617 2SC3357 DTC114EUA HSM88AS
DTD114EK 3SC5110 DTC144EUA
DTD123EK
6
2SA1586
VREF
2SC3356 GND
VIN
2SC4116




2SK2596 2SK508NV UPA672T 2SJ506 2SK1824 BU4094BCF TC7S00F AN8009M TK11050M
TC7S04FU
TC7S66FU


7


57
A B C D E F G H I J


PC BOARD VIEWS TKR-850
1




DISPLAY UNIT (X54-3330-20) Foil side view
J72-0756-02 A/2 J72-0756-02 B/2
CN601




11




1
GND




GND
VR601




MIG
MIC

PTT




5M
VLI
NC

NC
HK




SB
2
D507 D506 C606 C603
C602

S507




Q524




Q519
CP504 CP502




61




61
43




43
Q523




Q518




D603
34




34
1 6




1 6
D602

D601




Q522




Q516
61




61