JVCKENWOOD DT-U17 User manual

MULTI FORMAT LCD MONITOR
DT-U17/24/27/31/31Pro
Dismantling manual for use by
professional recyclers
By: JVCKENWOOD Corporation
First edition, May 2021

The Scope for the Manual
This manual is for the technicians who know well about the electric and have some experiences of
maintenance. All necessary information of dismantling and actual published date are included in this
manual.
For Your Safety
● Please pay aenon to the below proceedings for your safety:
● Please turn off the power and remove batteries, and don’t operate the equipment when you are near the
electric detonator or on flammability gas station.
● Only the qualified technicians can dismantle the equipment.
Disclaimer
UNLESS SPECIALLY AGREED TO IN WRITING, JVCKENWOOD Corporation.
a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR
OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION.
b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGE, WHETHER DIRECT, INDIRECT,
CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE
OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S RISK.
For any other problems that didn’t refer in this dismantling Manual, please contact:
Manufacturer:
JVCKENWOOD Corporation
Please visit: https://www.jvc.net/
for contact details of your nearest service department

Contents
1. Service tools
2. Parts List
3. Dismantling instruction

1. Service tools
Name Application
Hexagonal wrench (Width across: 2.5 mm) Screw tightening
Torque screwdriver(0,16-0,74Nm) Screw tightening

2. Parts List
2.1 DT-U17
Parts List
NO. Part NO. Description Qty
1 42320258 Tally lampshade 1
2 42400121 JVC nameplate 1
3 39800521 Front panel 1
4 43420114 Left and right foam 2
5 43420113 Top foam 1
6 39700243 Tally board 1
7 41170076 LCD 1
8 42310422 Press plate 3
9 43420116 Damping pad 2
10 42310404 LCD holder 2
11 42311025 Middle panel 1
12 39700453 V-BY-ONE board 1
13 39700498 AGU board 1
14 44540039 Thermal silica 1
15 41150204 XLR-4PIN 1
16 41150362 AC IN-Switch 1
17 42311022 Right frame 1
NO. Part NO. Description Qty
18 42311008 Rear panel 1
19 42310787 Handle 1
20 41040024 Speaker 2
21 42310942 Speaker holder 2
22 42320048 Switch cover 4
23 39700495 Key board 1
24 39700496 Rotary encoder board 1
25 39700500 USB board 1
26 44540045 Insulating sheet 1
27 41190066 Transformer board 1
28 39700504 Power selection board 1
29 39700462 Main board 1
30 41180013 Fan 1
31 44590104 Dust filter 1
32 42311009 Left frame 1
33 42311041 Desktop stand 2

2.2 DT-U24
Parts List
NO. Part NO. Description Qty
1 42320258 Tally lampshade 1
2 42400121 JVC nameplate 1
3 39800522 Front panel 1
4 43420102 Left and right foam 2
5 43420124 Top and lower foam 2
6 39700243 Tally board 1
7 41170073 LCD 1
8 42330163 Damping pad(T) 2
9 42311085 LCD holder(T and L) 4
10 42330084 Damping pad(M) 2
11 42310404 LCD holder(M) 2
12 42311028 Middle panel 1
13 39700493 Backlight board 1
14 39700422 V-BY-ONE board 1
15 39700498 AGU board 1
16 44540039 Thermal silica 1
17 41150362 AC IN-Switch 1
18 41150204 XLR-4PIN 1
19 42311022 Right frame 1
NO. Part NO. Description Qty
20 42311008 Rear panel 1
21 42310787 Handle 1
22 42320048 Switch cover 4
23 39700495 Key board 1
24 39700496 Rotary encoder board 1
25 39700500 USB board 1
26 42330170 LCD holder pad 3
27 42330169 Damping pad(L) 2
28 41040024 Speaker 2
29 42310942 Speaker holder 2
30 44540045 Insulating sheet 1
31 41190066 Transformer board 1
32 39700504 Power selection board 1
33 39700462 Main board 1
34 42311009 Left frame 1
35 41180013 Fan 1
36 44590104 Dust filter 1
37 42311041 Desktop stand 2

2.3 DT-U27HB
Parts List
NO. Part NO. Description Qty
1 42320594 Tally lampshade 1
2 42400121 JVC nameplate 1
3 30700199 Desktop stand 2
4 39800480 Front panel 1
5 44520116 Left and right foam 2
6 44520117 Top and lower foam 2
7 39700494 Tally board 1
8 42310859 Tally holder 1
9 41170079 LCD 1
10 42330153 Damping pad(T) 2
11 42310920 LCD holder(T) 2
12 42330154 Damping pad(M) 2
13 42310917 LCD holder-T Style 2
14 42311156 Middle panel 1
15 39700422 V-BY-ONE board 1
16 41190066 Transformer board 1
17 39700499 Power selection board 1
18 41150362 AC IN-Switch 1
NO. Part NO. Description Qty
19 42311040 Right frame 1
20 42311105 Rear panel 1
21 42310787 Handle 1
22 42320048 Switch cover 4
23 39700495 Key board 1
24 39700496 Rotary encoder board 1
25 39700500 USB board 1
26 41040027 Speaker 2
27 42310394 Speaker holder 2
28 42330106 Damping pad(L) 2
29 42311157 LCD holder(L) 2
30 44540039 Thermal silica 1
31 39700498 AGU board 1
32 39700462 Main board 1
33 41180013 Fan 1
34 42310741 Left frame 1
35 44590104 Dust filter 1
36 44540045 Insulating sheet 1

2.4 DT-U31
Parts List
NO. Part NO. Description Qty
1 42320594 Tally lampshade 1
2 42400121 JVC nameplate 1
3 39800478 Front panel 1
4 44520109 Left and right foam 2
5 39700494 Tally board 1
6 42310859 Tally holder 1
7 41170050 LCD 1
8 42330105 Damping pad(M) 2
9 42310915 LCD holder-T Style 2
10 42310789 LCD holder(T) 2
11 42330104 Damping pad(T) 2
12 44520110 LCD damping pad 1
13 42330106 Damping pad(L) 2
14 42310916 LCD holder(L) 2
15 42310710 Middle panel 1
16 44540039 Thermal silica 1
17 39700462 Main board 1
18 39700493 Backlight board 1
19 42310740 Right frame 1
NO. Part NO. Description Qty
20 42310741 Left frame 1
21 42311105 Rear panel 1
22 42310787 Handle 1
23 30700199 Desktop stand 2
24 44520108 Top and lower foam 2
25 42330107 LCD holder pad 2
26 42320048 Switch cover 4
27 39700495 Key board 1
28 39700496 Rotary encoder board 1
29 39700500 USB board 1
30 41040027 Speaker 2
31 42310394 Speaker holder 2
32 39700498 AGU board 1
33 41190066 Transformer board 1
34 39700504 Power selection board 1
35 41150362 AC IN-Switch 1
36 41150204 XLR-4PIN 1
37 41180013 Fan 1
38 44590104 Dust filter 1

2.5 DT-U31Pro
Parts List
NO. Part NO. Description Qty
1 42320594 Tally lampshade 1
2 42400121 JVC nameplate 1
3 39800479 Front panel 1
4 44520118 Left and right foam 2
5 44520108 Top and lower foam 2
6 39700494 Tally board 1
7 42310859 Tally holder 1
8 41170060 LCD 1
9 42330104 Damping pad(T) 2
10 42310834 LCD holder(T) 2
11 42330117 Damping pad(M) 2
12 42310918 LCD holder-T Style 2
13 42311068 Middle panel 1
14 39700478 V-BY-ONE board 1
15 39700462 Main board 1
16 41150362 AC IN-Switch 1
17 42311040 Right frame 1
18 41180013 Fan 1
NO. Part NO. Description Qty
19 44590104 Dust filter 1
20 42311105 Rear panel 1
21 42310787 Handle 1
22 30700199 Desktop stand 2
23 42320048 Switch cover 4
24 39700495 Key board 1
25 39700496 Rotary encoder board 1
26 39700500 USB board 1
27 41040027 Speaker 2
28 42310394 Speaker holder 2
29 42330106 Damping pad(L) 2
30 42310923 LCD holder(L) 2
31 44540039 Thermal silica 1
32 39700498 AGU board 1
33 41190066 Transformer board 1
34 39700499 Power selection board 1
35 42310741 Left frame 1

3. Disassemble instruction
DT-U31 Pro(The disassemble instructions of DT-U17/24/27HB/31/31Pro are basically the same)
3.1 Remove all the 18 screws from the rear panel, see FIG. 3. You don’t need to disassemble battery plate if
there’s battery plate installed.
FIG. 3
3.2 Open the rear panel, see FIG. 4, and remove the connecting line in the red box, and then the rear panel
can be removed.
FIG. 4
3.3 To disassemble the main board:
1. Remove the connecting line in the orange box, see FIG. 5;
2. Remove the screws, see FIG. 6.
3. Remove all 6 screws on the main board, see FIG. 5;

FIG.
3.4 To disassemble the LCD panel:
1、Remove the connec
ting line in the
2、Remove all the 14 scr
ews from the middle panel, see
3、Remove
the 18 screws in the red circle,
FIG. 5
ting line in the
blue box, see FIG. 5;
ews from the middle panel, see
FIG. 7.
the 18 screws in the red circle,
see FIG. 8.
FIG. 7
5
FIG. 6

FIG. 8
3.5 DT-U17/24/27HB/31 PCBA
FIG. 9

FIG. 10
FIG. 11

FIG. 12