TKR-750 service manual
TKR-750 service manual
TKR-750 service manual
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I<br />
A<br />
B<br />
C<br />
D<br />
E<br />
F<br />
G<br />
H<br />
I<br />
PC BOARD VIEWS <strong>TKR</strong>-<strong>750</strong><br />
J<br />
1<br />
DISPLAY UNIT (X54-3330-20) Foil side view<br />
J72-0756-02 A/2<br />
J72-0756-02 B/2<br />
VR601<br />
11<br />
CN601<br />
1<br />
HK<br />
MIC<br />
MIG<br />
PTT<br />
GND<br />
NC<br />
SB<br />
NC<br />
GND<br />
5M<br />
VLI<br />
2<br />
D507<br />
D506<br />
C602<br />
C606<br />
C603<br />
S507<br />
Q523<br />
6<br />
4<br />
1<br />
3<br />
CP504<br />
Q524<br />
3<br />
1<br />
4<br />
6<br />
Q518<br />
6<br />
1<br />
3 4<br />
CP502<br />
Q519<br />
3<br />
1<br />
4<br />
6<br />
D603<br />
D602<br />
BACKUP<br />
RED<br />
D505<br />
MAIN DC<br />
GRN<br />
Q521<br />
6<br />
1<br />
3 4<br />
CP503<br />
Q522<br />
3<br />
1<br />
4<br />
6<br />
Q517<br />
6<br />
1<br />
3 4<br />
CP501<br />
Q516<br />
3<br />
1<br />
4<br />
6<br />
R601<br />
R605<br />
D601<br />
3<br />
R519<br />
Q510<br />
Q511<br />
R543<br />
1 6<br />
3 4<br />
Q507<br />
R544<br />
R520<br />
Component side<br />
D513<br />
R535<br />
D514<br />
R536<br />
D510<br />
R539<br />
D511<br />
8<br />
9<br />
R540<br />
IC502<br />
Q514<br />
6 1<br />
4 3<br />
1<br />
16<br />
R538<br />
R537<br />
R534<br />
D509<br />
C511<br />
D508<br />
D512<br />
C524<br />
+<br />
C525<br />
Q525<br />
S<br />
D G<br />
O<br />
G<br />
C518<br />
S506<br />
R526<br />
C526<br />
R606<br />
IC507<br />
R542<br />
R541<br />
R502<br />
R503<br />
CN501<br />
C520<br />
4 3<br />
6 1<br />
Q504<br />
11<br />
1<br />
RED<br />
VLI<br />
5M<br />
GND<br />
NC<br />
SB<br />
NC<br />
GND<br />
PTT<br />
MIG<br />
MIC<br />
HK<br />
R517<br />
Q506<br />
D504<br />
BUSY<br />
+<br />
C501<br />
GRN<br />
C517<br />
16<br />
9<br />
IC505<br />
S505<br />
R505<br />
Q502<br />
VR501<br />
1<br />
8<br />
C523<br />
+ C503<br />
R506<br />
IC506 I<br />
G<br />
O<br />
R507<br />
Q501<br />
R525<br />
R508<br />
C502<br />
C519<br />
C522<br />
D502<br />
+<br />
+<br />
C521<br />
Q508<br />
C516<br />
C505<br />
C504<br />
C506<br />
16<br />
9<br />
IC504<br />
R516<br />
R510<br />
R509<br />
D501<br />
C507<br />
1<br />
8<br />
RED<br />
1<br />
D503<br />
TX<br />
R524<br />
C508 S504<br />
R511 R512 R529 S503<br />
8<br />
IC501<br />
4 5<br />
GRN<br />
C509<br />
R513<br />
+<br />
C510<br />
R514<br />
19 20<br />
SB SB<br />
GND NC<br />
DAT PSW<br />
STB1 CLK<br />
SOE PTT/TXD<br />
K1 HK/RXD<br />
K2 K3<br />
K4 K5<br />
VLI 5C<br />
MIG MIC<br />
R533<br />
1 2<br />
CN502<br />
R523<br />
C515<br />
R530<br />
R531<br />
1 6<br />
3 4<br />
Q513<br />
C514<br />
R532<br />
S502<br />
R522<br />
C512<br />
16<br />
1<br />
IC503<br />
8 9<br />
C513<br />
C605<br />
J601<br />
R521<br />
S501<br />
R604<br />
NC<br />
HOOK<br />
MIC<br />
MIG<br />
PTT<br />
GND<br />
SB<br />
NC<br />
C607<br />
Q512<br />
6 1<br />
4 3<br />
4<br />
5<br />
Foil side<br />
30622M4-113GP AT29C020-90TI AT2408N10SI2.5 BU4053BCF SA7025DK NJM78L05UA<br />
RH5VL42C<br />
AK4550VT<br />
BU4094BCFV<br />
M62354GP<br />
TC74VHC4040FT<br />
M62364FP<br />
TC74LVX4245FS<br />
6<br />
320VC5402PGE<br />
TA75W01FU<br />
TC75W51FU<br />
TA75S01F NJM7808FA TA7808F ADM202EARN TK14489V 2SK3075<br />
7<br />
58
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