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(1) Set No.1 and No.3 of S901/DM-89(A-1) to ON (up side).
(2) Set S101/DM-89(E-6) and S301/DM-89(A-5) to TEST (left) side.
(3) Insert the alignment tape CR5-1B or CR5-1B PS. (STANDBY OFF mode)
(DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS)
METAL Y adjustment [to step (16)]
(4) Short-circuit TP4/DM-89(E-1) and E702/DM-89(D-1) with a shorting clip.
(5) Connect the output of network analyzer to TP103/DM-89(E-6).
GND: E103/DM-89(F-6)
(6) Connect the oscilloscope's CH-2 to TP104/DM-89(F-5).
GND: E104/DM-89(G-5)
(7) METAL Y, Grope delay adjustment
Adjust the group delay time in 2 MHz through 12 MHz.
Adjustment Point: 1RV101/DM-89(E-5) and 1RV102/DM-89(E-5)
0 ± 20 ns
Specification:
(8) For DNW-A22 only
Adjust the delay time at 6 MHz use 2 MHz as the reference.
Adjustment Point: 1RV101/DM-89(E-5)
A = _10 ± 3 ns
Specification:
[ns]
0
A
2
6
DNW-A22/A22P
[ns]
+20
0
_20
2
[MHz]
12
[MHz]
A
B
C
RV704
RV703
D902
ON
E303
TP8
S901
OFF
E901
TP702
TP701
RV702
TP305
TP700
RV701
RV401
RV301
RV302
RV303
RV304
RV402
S302
S301
RV406
TEST
NOR
RV407
E302
TEST
NOR
TP303
TP304
TP404
TP302
TP300
E301
DM-89 Board (Side A)
6-3. DM-89 Board Replacement
D
DM-89
E
F
G
OFF
ON
RV504
TP7
TP6
TP5
S501
TP3
TP2
TP1
RV503
A No.
E702
TP4
TP705
TP505
TP704
TP503
TP504
E701
TP502
TP703
E501
RV501
RV502
TP501
RV507
RV506
TP500
TP105
TP106
TP306
TP506
TP208
RV305
RV105
RV104
RV102
RV306
RV106
RV107
RV307
RV103
RV101
RV201
RV308
RV108
E102
TP104
NOR
RV405
TEST
S101
RV211
TP102
TEST
NOR
TP403
TP202
E103
TP103
TP204
TP100
E101
E902
E105
LOTNO,
S NO,
1
2
3
4
RV202
5
E104
S102
RV212
6
RV205
TP203
7
6-31
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