Adjustment - Pioneer DV-38A Service Manual

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3 7 63 1515 0

6. ADJUSTMENT

6.1 ADJUSTMENT ITEMS AND LOCATION
Adjustment Points (PCB Part)
E
DVDM ASSY
CN103
1
1 : XZNRON1
2 : XANRH1
3 : CLMP1
4 : GNDD
5 : Y
6 : GNDD
28
7 : C
8 : GNDD
9 : V-12D
10 : GNDD
11 : V+12D
12 : GNDD CN121
13 : CR(I/P)
14 : GNDD
15 : CB(I/P)
16 : GNDD
17 : Y(I/P)
18 : GNDD
19 : XCOMP
20 : CLMP2
21 : XANRH2
22 : XANRON2
23 : V_SEL2
24 : V_SEL1
25 : LETTER
IC951
26 : SQUEEZ
27 : 525P
28 : NC(VOFF)
TE
L 13942296513
CN120
CN512
6.3 NECESSARY ADJUSTMENT POINTS
When
Exchange PCB Assy
www
Exchange board
DVDM ASSY
.
http://www.xiaoyu163.com
2
1
VR1831
VR1001
IC1001
IC1003
IC806
IC801
3
VC951
IC712
IC702
IC601
IC201
IC251
IC603
CN101
CN105
SIDE A
x ao
y
i
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DV-38A, DV-S88A, DV-S838A, DV-939A
8
Adjustment Items
[Electrical Part]
Y Level Adjustment
1
CN104
Component Y Level Adjustment
2
27MHz Clock Adjustment
3
6.2 JIGS AND MEASURING
INSTRUMENTS
CN112
CN111
Q Q Screwdriver (small)
3 6 7 1 3
Frequency counter
Display digit
Adjustment Points
Mechanical
point
u163
Electric
.
point
Note : 1,2 and 3 are adjusted already.
2 9 9 4 2 8
Dual-trace oscilloscope
(with delay)
Frequency band
1 5 0 5 8 2 9 9 4
8-digit TV monitor
m
co
9 9
CH1 CH2
(X) (Y)
40MHz
2 8 9 9
65