PRA-BD11
36
1
2
3
4
1
2
3
4
C
D
F
A
B
E
SIDE A
DINB ASSY
A
IC8312
IC8103
IC8108
IC8110
IC8109
TP8479
IC8106
IC8104
IC8105
IC8101
IC8205
IC8102
TP8486
TP8328
TP8326
TP8325
TP8327
TP8324
TP8485
IC8204
IC8311
IC8301
TP8484
TP8483
TP8286
TP8287
TP8288
IC8309
IC8308
TP8481
TP8480
TP8285
TP8482
TP8487
IC8201
TP8284
CLK_27MSDI_SEL
GNDD
GNDD
GNDD
GNDD
GNDD
+5.0V
+5.0V
GNDD
TP8285 27M_GEN
C
+3.3V
1
2
GNDD
GNDD
GNDD
+5.0V
+2.5V
1
5M2
5M1
5IN
Checker chips are provided for various power supplies, ground, and clock signals for easier measuring with an oscilloscope
using a probe.
5. Points to check during servicing
Points to check
Pin No.
Signal Name
Description
Pin No.
Signal Name
Description
TP8483
TP8484
TP8485
TP8486
GNDD
Ground
TP8284
CLK_27M
SDI_SEL
27MHz signal reproduced from the SDI
signal, or when there is no signal input, a
return signal of the 27MHz signal from
the PRV-LX1 (Measurement must be
conducted when the PRV-LX1 is
connected with the PRA-BD11)
TP8482
+2VD
2.5V power supply for the digital system
TP8285
27M_GEN
Built-in 27MHz clock generator
TP8480
+3VD
3.3V power supply for the digital system
TP8479
+5VD
5.0V power supply for the digital system
TP8481
+5VA
5.0V power supply for the analog system
Содержание PRA-BD11
Страница 19: ...PRA BD11 19 5 6 7 8 5 6 7 8 C D F A B E A 3 4 ...
Страница 21: ...PRA BD11 21 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 23: ...PRA BD11 23 5 6 7 8 5 6 7 8 C D F A B E B 1 2 2 2 B 2 2 B 2 2 B 2 2 B 2 2 B 2 2 B 2 2 B 2 2 B ...
Страница 25: ...PRA BD11 25 5 6 7 8 5 6 7 8 C D F A B E B 2 2 1 2 B 1 2 B 1 2 B 1 2 B ...