Sharp TU-DTV1000/A User manual

1
TU-DTV1000/A
SERVICE MANUAL
S08Y6TU-DTV10
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
MODEL TU-DTV1000/A
CONTENTS
• SPECIFICATIONS.............................................. 2
• IMPORTANT SERVICE SAFETY NOTES..........3
• NOTE TO SERVICE PERSONNEL....................4
• OPERATION MANUAL ...................................... 5
• REMOVING OF MAJOR PARTS........................8
• TROUBLE SHOOTING TABLE ........................13
• SERVICE ADJUSTMENT................................. 17
• CHASSIS LAYOUT .......................................... 23
• BLOCK DIAGRAM ........................................... 25
• OVERALL WIRING DIAGRAM.........................27
Page Page
• DESCRIPTION OF SCHEMATIC DIAGRAM ...29
• SCHEMATIC DIAGRAM................................... 30
• PRINTED WIRING BOARD ASSEMBLIES ......83
• PARTS LIST
ËELECTRICAL PARTS ................................. 93
ËCABINET AND MECHANICAL PARTS..... 111
ËACCESSORIES PARTS ........................... 113
ËPACKING PARTS ..................................... 113
• PACKING OF THE SET ................................. 114
SHARP CORPORATION This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
ATSC DIGITAL TELEVISION SYSTEM
DTV DECODER

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TU-DTV1000/A
Specifications
Product Type DTV Decoder
Model TU-DTV1000
Video System ATSC Digital television system
Receiving Frequency VHF : Low 54~88MHz, High 174~216MHz
UHF : 470~806MHz
Antenna Input 75Ωunbalanced
Video Output Signal
1080i(HDTV)
»5BNC Output R.G.B : 1.0Vp-p (Trilevel Sync On), 75Ω
HD, VD : 0.3Vp-p (Sync Negative), 75Ω
»Component Output Y : 1.0Vp-p (Trilevel Sync On), 75Ω
PB/PR : ±0.35Vp-p (Trilevel Sync), 75Ω
480p(VGA)
»15-pin mini D-sub R.G.B : 0.7Vp-p (Non-sync), 75Ω
HD, VD : TTL level (Negative)
480i
»Component Output Y : 1.0Vp-p (Negative Sync On), 75Ω
PB/PR : ±0.35Vp-p (Non-sync), 75Ω
»S-video Output Y : 1.0Vp-p (Negative Sync On), 75Ω
C : burst 0.286Vp-p, 75Ω
»Video Output Composite video 1Vp-p (Negative Sync on), 75Ω
Audio Output Signal
»Output Signal Output level : 2Vrms(1kHz, 0dB)
»5.1ch Output Front L/R, surround L/R, center and subwoofer
Output connector : Pin-jack
»Digital Audio I/F Optical digital output : Optical connector
»Coaxial Digital Output Pin-jack
Rated Voltage AC 120V
Rated Frequency 60Hz
Power Consumption 57W
Operating Temperature 0°C to 40°C (32°F to 104°F)
Storage Temperatue -20°C to 55°C (-4°F to 131°F)
Cabinet Front : Plastic
Top, Bottom : Metal
Dimensions Material 16.9" ×11.0" ×3.1" (430 ×280 ×79.5 mm)
(W ×D ×H) (Main body only)
Weight 10.4lbs (4.7kg)
Supplied Accessories Remote control unit
Two AA batteries
(For Expansion Port) Up grade port
Digital expansion port (Preparation for Future)
Specifications are subject to change without notice.

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TU-DTV1000/A
IMPORTANT SERVICE SAFETY NOTES
ËService work should be performed only by qualified service technicians who are
thoroughly familiar with all safety checks and servicing guidelines as follows:
AC
VOLTMETER
1.5k ohm (10W)
0.15µF
TEST PROBE
TO EXPOSED
METAL PARTS CONNECT TO KNOWN
EARTH GROUND
WARNING
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
BEFORE RETURNING THE DTV DECODER:
(Fire & Shock Hazard)
Before returning the projector to the user, perform
the following safety checks:
1. Inspect lead wires are not pinched between the
chassis and other metal parts of the DTV decoder.
2. Inspect all protective devices such as non-metallic
control knobs, insulating materials, cabinet backs,
adjustment and compartment covers or shields,
isolation resistor-capacity networks, mechanical
insulators, etc.
3. To be sure that no shock hazard exists, check for
current leakage in the following manner:
»Plug the AC cord directly into a 120-volt AC outlet,
(Do not use an isolation transformer for this test).
»Using two clip leads, connect a 1.5k ohm, 10 watt
resistor paralleled by a 0.15µF capacitor in parallel
between all exposed metal cabinet parts and earth
ground.
»Use anAC voltmeter with sensitivity of 5000 ohm per
volt., orhigher, sensitivity tomeasure theACvoltage
drop across the resistor (See Diagram).
»All checks must be repeated with the AC plug
connection reversed. (If necessary, a non-polarized
adapter plug must be used only for the purpose of
completing these checks.)
Any reading of 0.37 volts RMS (this corresponds to
0.25milliamp.AC.)or moreisexcessive andindicates
a potential shock hazard which must be corrected
before returning the unit to the owner.
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SAFETY NOTICE
Many electrical and mechanical parts in DTV decoder have special safety-related characteristics.
These characteristics are often not evident from visual inspection, nor can protection afforded by them be necessarily
increased by using replacement components rated for higher voltage, wattage, etc.
Replacement parts which have these special safety characteristics are identified in this manual; electrical components
havingsuch featuresare identified by“å”and shaded areasin theReplacement Parts Listsand SchematicDiagrams.
For continued protection, replacement parts must be identical to those used in the original circuit. The use of a
substitutereplacementparts whichdonothave thesamesafetycharacteristics asthefactoryrecommended replacement
parts shown in this service manual, may create shock, fire or other hazards.
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TU-DTV1000/A
CAUTION: TO REDUCETHE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (or BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICINGTO QUALIFIED SERVICE
PERSONNEL.
The lighting flash with arrowhead within a
triangle is intended to tell the user that
parts inside the product are risk of electric
shock to persons.
The exclamation point within a triangle is
intended to tell the user that important
operatingand servicinginstructions are in
the manual with the projector.
CAUTION
RISK OF ELECTRIC SHOCK.
DO NOT REMOVE SCREWS
EXCEPT SPECIFIED USER
SERVICE SCREW
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO
MOISTURE OR WET LOCATIONS.
CAUTION
(ATV-1 & ATV-2)
For continued protection
against a risk of fire,
replace only with same
type 1A 60V fuse.
(F5101 ···ATV-1)
(F5401 ···ATV-2)
1A 60V
CAUTION
(ATV-2) For continued protection
against a risk of fire,
replace only with same
type 2A 60V fuse.
(F5403, F5404, F5405)
2A 60V
CAUTION
(ATV-1 & ATV-2)
For continued protection
against a risk of fire,
replace only with same
type 1.6A 60V fuse.
(F5102, F5103, F5104,
F5105 ···ATV-1)
(F5402 ···ATV-2)
1.6A 60V
CAUTION
(Main Power)
For continued protection
against a risk of fire,
replace only with same
type 3A 250V fuse.
(F1)
3A 250V
CAUTION
(Sub Power)
For continued protection
against a risk of fire,
replace only with same
type 4A 125V fuse.
(F5981)
4A 125V

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TU-DTV1000/A
CONTROL OPERATION QUICK REFERENCE

6
TU-DTV1000/A
REAR TERMINALS

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TU-DTV1000/A
BASIC OPERATION

8
TU-DTV1000/A
REMOVING OF MAJOR PARTS
1. Removing the top cabinet
1-1. Remove the four lock screws off the right and left sides of the top cabinet.
1-2. Remove the five lock screws off the back of the top cabinet. Slide the top cabinet toward yourself and detach
it.
1-2
1-1
Top Cabinet

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TU-DTV1000/A
2. Removing the front cabinet and PWBs
2-1. Remove the three lock screws off the front cabinet. Undo the three hooks at the bottom and detach the front
cabinet.
2-2. Remove the three lock screws and take out the Operation unit PWB.
2-3. Remove the five lock screws and take out the R/C·LED unit PWB.
2-1
2-2
2-3
Front Cabinet
R/C·LED Unit
Operation Unit

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TU-DTV1000/A
3. Removing the ATV-1 and ATV-2 unit PWBs
3-1. Remove the nine lock screws off the terminals on the back.
3-1
3-2. Disconnect the connectors of the ATV-1 and ATV-2 unit PWBs.
3-3. Remove the eight lock screws off theATV-1 unit PWB. Disconnect the terminals from the bottom cabinet. Lift
and detach the ATV-1 unit PWB.
3-4. Remove the eight spacers (stud bolts). Disconnect the terminals from the bottom cabinet. Lift and detach the
ATV-2 unit PWB.
3-3
3-2
3-4
3-2
8 pcs.
ATV-1 Unit
ATV-2 Unit
Bottom Cabinet

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TU-DTV1000/A
4. Removing the Main power and Sub-power unit PWBs
4-1. Remove the two lock screws off the Sub-power unit PWB bracket.
4-2. Remove the five lock screws off the Sub-power unit PWB.
Detach the sub-power unit PWB from its bracket.
4-3. Remove the three lock screws off the Main power unit PWB. Take out the power unit PWB.
4-2
4-1
4-3
4-3
Main Power Unit
Sub Power
Unit

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TU-DTV1000/A
Layout of servicing the PWBs
DUNTK9713DE01
P5214 P5213
P5411
P5412
P5216
P5771
DUNTK9709DE01
(Chip Parts Side)
DUNTK9710DE01
(Wiring Side)
SC5411
SC5013 SC5103
SC5409
P5401
DUNTK9712DE02
RDENC0282CEZZ
DUNTK9711DE01
P5772
CN1
P5982
P5981
P5983
P5986 P5985
P5984 CN2
1
2
4
5
3
6
7
1QCNW-5142CEZZ
2QCNW-5143CEZZ
3QCNW-5144CEZZ
4QCNW-5145CEZZ
5QCNW-5146CEZZ
6QCNW-5147CEZZ
7QCNW-5148CEZZ

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TU-DTV1000/A
TROUBLE SHOOTING TABLE
No power (Unit’s power LED failure to light up)
»Make sure the AC cord is plugged in.
Is the unit switched on using the unit’s power switch or the R/C unit?
(No power with the
unit’s power switch)
Front panel PWB defective:
Check power switch or connection
cable.
(No power with
both the controls)
(No power with the
R/C unit)
Replace the R/C unit.
But the same troubleremains.
Front panel PWB defective:
Check RMC5771 or connection
cable.
Check to see if the R/C unit and the front panel
are on power. Is there +5V signal at pin (1) of
P215 on the ATV-1 PWB?
Check the microprocessor
circuit (IC5201 and its
peripheral circuits). Check the sub-power PWB.
YES
YES
YES
NO
NO
Power LED flashing
»The LED starts flashing if the fan at the back is interrupted
or if the ATV-1’s SH3 (IC5101) gets in trouble.
Is the fan at a stop (power LED and timer LED alternately flashing)?
Check the fan.
No: Power LED only flashing
Check the ATV-1 PWB’s SH3 (IC5101) for malfunction.
Are the power voltages (+12V, +5V and +3.3V) supplied to the ATV-1 and ATV-2
PWBs?
(ATV-1: +12V at pin (1), +5V at pin (3), +3.3V at pin (5), all of P5202; 3.3V at pins (1)
and (2) of P5201)
(ATV-2: +12V at pin (1), +5V at pin (3), +3.3V at pins (5) and (6), all of P5412; 3.3V at
pins (1) and (2) of P5411)
Check IC5101 (SH3) or IC5105
(FPGA). Check the power unit and AC cord.
)

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TU-DTV1000/A
TROUBLE SHOOTING TABLE (Continued)
No video output, no audio output
First make sure of the following points.
»The AC power cable is plugged in.
»The power is switched on and the unit’s power LED stays on.
»The output mode switch is properly set according to a monitor
to be connected.
→Refer to “VIDEO CONNECTIONS” (pages. 32 and 33) of
the Operation Manual.
»The video and audio cables are correctly connected.
Can a channel be selected (channel number displayed on screen)?
Check the D5212 and D5213 on the ATV-1 PWB.
Green LED on, red LED flashing: This means the IC5101 (SH3) functions. Check the
following parts.
» ATV-1 and ATV-2 connection cables (SC5103)
» ATV-1 FPGA (IC5105)
» ATV-2 MMC (IC5424 and IC5429)
Green LED off, red LED on or off: This means the SH3 or other part malfunctions.
Check the following parts.
» SH3 (IC5429), FPGA (IC5105), SDRAM (IC5102 and IC5104), ROM (IC5111 and
IC5112), Flash (IC5113 thru IC5116)
Make sure of the following points: selected
channel number displayed on screen, antenna
cable properly connected, reception condition
by HDTV indicator on front panel.
Is the HDTV indicator either on or off (not
flashing)?
YES
YES
YES
NO
NO
NO
1) Slow flashing
There is no DTV program available for a selected major channel, or if any, the
signal reception condition is too bad to receive clearly.
→Select another channel with DTV signal and try again.
2) Quick flashing
There is a DTV program available for a selected major channel, but the signal
reception condition is too bad to receive clearly.
→Select another channel with DTV signal and try again.
3) Intermittent flashing
There is a DTV signal for a selected major channel and the signal is well received,
but minor channels are not properly set (example: 02 of 23.02) (There is no
program for a selected minor channel.)
→Set another minor channel or select another major channel.
If another channel is tried but the indicator is still flashing, check the tuner
(TU5001) and the VSB (UNT5001).
Select a channel without DTV program.
Is the HDTV indicator flashing?
Select a channel with DTV program again. (Make
sure the indicator stays on or goes out.)
ATV-1 ST20TP2 (IC5001) malfunctioning
Turn off the power and turn it on again. If the
ST20TP2 still malfunctions, check the ST20TP2
(IC5001) and RAM(IC5009 and IC5010) for trouble.
A

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TU-DTV1000/A
TROUBLE SHOOTING TABLE (Continued)
Check the LEDs (D5023, D5024 and D5025) on the
ATV-1 PWB. Does the D5023 light up in green?
NO
YES
YES
NO
A DTV signal (available in the selected channel) is
locked. There is no DTV signal for the selected channel.
Check the tuner and VSB unit for trouble.
Does the D5024 light up in green and the D5025
(red) go out?
The tuner and VSB function well. Check IC5001
and IC5003 for trouble. If D5025 starts flashing or stays on in red, it means
the reception condition is bad with many errors.
` Because of poor reception condition, DTV programs may be affected by the VSB out of lock (D5023 off) or reception error
(D5025 on or flashing). Possible causes include:
» that signals being received by the antenna are too weak or too strong.
» that received signals contain remarkable ghost and other interference.
A
»Make sure the video cable is
properly connected.
»Make sure the video output
mode corresponds to a monitor
being hooked up.
No video output (audio output available)
Does the on-screen display function well (by using the R/C unit)?
Check the D5212 and D5213 on the ATV-1 PWB.
Green LED on, red LED flashing: This means the SH3
(IC5101) functions. Check the following parts.
» ATV-1 and ATV-2 connection cables (SC5103)
» ATV-1 FPGA (IC5105)
» ATV-2 MMC (IC5424 and IC5429)
Green LED off, red LED on or off: This means the SH3
or other part malfunctions. Check the following parts.
» SH3 (IC5429), FPGA (IC5105), SDRAM (IC5102 and
IC5104), ROM (IC5111 and IC5112), Flash (IC5113
thru IC5116)
See if the ATV-1 and ATV-2 connection cables (ATV-1
connector SC5411) are connected tightly. Check the
ATV-2 video decoder (IC5403), SDRAM (IC5405, IC5406
and IC5407), FPGA (IC5408) and SDRAM (IC5412 thru
IC5415) for trouble.
YES NO

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TU-DTV1000/A
TROUBLE SHOOTING TABLE (Continued)
Images in a certain input format or from a certain
output terminal are poor.
Errors in NTSC record
output only.
Errors in main NTSC system
output only (no problem with
HDTV system output)
Check the ATV-2 NTSC
encoder (IC5440).
Errors in main HDTV and
480P system output only. Errors in 480I format input
only.
Check the ATV-2 MMC
(IC5444) and NTSC encoder
(IC5447).
Check the ATV-2 NTSC
encoder (IC5440). Check the ATV-2 FPGA
(IC5434), DAC (IC5439) and
FL5407.
Check the ATV-2 SVP
(IC5411 or IC5420), FPGA
(IC5466) and SDRAM
(IC5404 thru IC5407).
` Also take the following steps.
»Check to see if the monitor
cable is properly connected.
»Check the record output cable
that runs from the ATV-2 to
the ATV-1 (ATV-1 connector
P5311).
»Check the video terminals on
the back.
»Check to see if the output
mode is properly set.
»Check to see if the monitor
cable is properly connected.
»Check the NTSC system
output cable that runs from
the ATV-2 to the ATV-1(ATV-1
connector P5216).
»Check the video terminals on
the back.
»Check to see if the output mode
is properly set.
»Check to see if the monitor
cable is properly connected.
»Check the video terminals on
the back.
»Make sure the audio cable is
properly connected.
»Make sure the audio terminals
are not defective.
Unusual audio output (video output available)
No analog audio output. No digital audio output.
YES YES
NO NO
Is digital audio output okay (amplifier of
AC-3 decoder to be connected)? Is analog audio output okay?
Are there both 2ch L/R and 5.1ch
outputs?
(No output at all)
Check the ATV-1
DA (IC5305,
IC5306 and
IC5307).
(No 2ch output)
Check the ATV-1
(IC5311 and
IC5312).
Check the audio
decoder (IC5301).
(No 5.1ch output)
Check the ATV-1
(IC5313, IC5314
and IC5315).
Note: When a broadcast signal is any other than 5.1ch (2ch, for
example), the 5.1ch analog output is given only for the
channel in question, but not for all the other channels.
The same signal is given for the 2ch L/R audio and record
2ch L/R audio outputs.
Check IC5303
(photo-output) and
IC5310 (coaxial).
Check the audio
decoder (IC5301).
Note: For playing back the digital audio on the
Dolby AC-3, the audio amplifier of the Dolby
AC-3 decoder must be externally connected
and the AC-3 mode must be set.

17
TU-DTV1000/A
SERVICE ADJUSTMENT
Precaution:
When the set has been disassembled and repaired, be sure to place all the copper tapes and filters back into
position to keep against unintended radiation.
Ë Serviceman mode
This model is equipped with the serviceman mode for a repairman to get the information that is effective in servicing
the set in the field. The serviceman mode consists of two modes: service mode to show the reception condition of
tuner and VSB system, and check mode to indicate the automatic-check results.
1. Calling the serviceman mode
1) Hold down the yellow color key located at the right of the set, and press the power key at the left to turn on the
power. The serviceman mode gets started and the following shows up on the screen.
2) The service mode comes on by pressing the blue color key on the set or on the remote controller: the check
mode by pushing the red color key.
2. Quitting the serviceman mode
Just turn off the power. When the power is turned on again, the set is switched on in the normal mode.
Seviceman Mode
Service : push blue key
Check : push red key

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TU-DTV1000/A
Ë Service mode
DTV stands for digital television broadcast. In analog broadcast, the worse the reception condition gets, the more
noises and ghosts occur on the screen. In digital broadcast, on the other hand, there is no degraded images up to
a certain level. Once the reception condition drops below a limit, however, both picture and sound are interrupted
suddenly. With DTV sets, it is thus very difficult to know how well the radio wave is received by viewing the screen.
To cope with this problem, the service mode provides for useful information on signal reception condition on the
screen.
1) Service mode screen and switching
There are two screens for the service mode. Press the SELECT key on the set or the R/C unit, and at each push
the two screens get switched alternately.
2) Limitations with the service mode
In the service mode, channels can be selected just directly or with the CH UP/DOWN keys. Any other ways
channel selection are impossible. The usual on-screen display does not appear either.
3) Information displayed in the service mode
SERVICE MODE 1 screen
SERVICE MODE 1 V1.01
STATUS1 : TUNER/VSB
CH : **.**
VSB : LOCK/UNLOCK
NTSCIRF : ON/OFF/···
VSB MODE : 8VSB/···
SI GET : OK/NG
PACKET ERROR :
SERVICE MODE 1 :
Tells that the set is in the service mode 1.
V1.01 :
Indicates the version of the software installed in the set. Make sure the program version is up to date.
CH:**.** :
Indicates the channel that is being selected.
VSB Lock :
Shows if the VSB system is locked or unlocked.
OK : Indicates that a selected major channel has DTV programs.
NG : Indicates that a selected major channel does not have any DTV programs.
* When the VSB is unlocked, “...” is shown for the following two items.
NTRCIRF :
Shows whether the NTSC rejection filter is activated or not.
VSB Mode :
Indicates that 8VSB signals are being received.
SI GET :
Indicates that SI information is being received.
No video and audio output is possible even in the locked state, if the set is not ready to receive the SI
information.

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TU-DTV1000/A
PACKET ERROR :
Indicates the current reception condition by displaying, in bars and figures, the number of errors of the
data received for a certain period of time. This helps estimate the antenna condition, signal level and
other data.
Let’s say that the levels with increasing blocks from left are named a), b),... e).
a) Good condition with no error
→Picture and sound are not affected at all.
b) One to 10 errors for 20 seconds
→There are some errors, but picture and sound are seldom affected.
c) Eleven to 30 errors for 20 seconds
→Picture and sound may be noticeably affected by errors.
(Image freezes, block noises, interrupted sound)
d) Thirty-one to 100 errors for 20 seconds
→Picture and sound are remarkably affected by errors. Image freezes
or interrupted sound may occur.
e) More than 100 errors
→Picture and sound cannot be outputted.
The figures shown below the bars indicate the numbers of packet errors for 20 seconds.
»This model cannot receive video and audio signals clearly if the following conditions are met:
VSB: LOCK, VSB MODE: 8VSB, SI GET: OK, PACKET ERROR level at a) or b).
SERVICE MODE 2 screen
SERVICE MODE 2:
Tells that the set is in the service mode 2.
V1.01 and CH:**.**:
The same as with the service mode 1.
SI/PSIP:
Shows which the set is receiving, SI or PSIP.
(NO STREAM is indicated when unlocked.)
FORMAT:
Indicates the numbers of horizontal and vertical pixels, frame frequency, interlace/progressive
and aspect ratio of the video format now being received.
V-DECODER & A-DECODER:
Shows if the decoders are working correctly.
SERVICE MODE 2 V1.01
STATUS2 : VIDEO/AUDIO
CH : **.**
SI/PSIP : SI/PSIP/NO STREAM
FORMAT : 1920×1080 60I 16:9/NO STREAM
V-DECODER : WORKING/NO STREAM
A-DECODER : WORKING/NO STREAM

20
TU-DTV1000/A
Ë Check mode
In this mode, the basic performance of the hardware that is connected with the main microprocessor (SH3) is
checked up. The check results are displayed on the screen.
1) Check mode screen and switching
There are three screens for the check mode. Press the SELECT key on the set or the R/C unit, and at each push
the three screens get switched one after the other.
2) Limitations with the check mode
In the check mode, the DTV’s basic operation cannot be performed. Check-related control only is possible.
3) Information displayed in the check mode
CHECK MODE 1 screen
CHECK MODE 1 (SH3)
R/C : OK (or NG)
ROM : XXXX
FLASH : OK (or NG)
MMC : OK (or NG)
ST20 : OK (or NG)
CHECK MODE 1 (SH3):
Tells that the set is in the check mode 1. Commands from the SH3 main microprocessor are checked.
R/C: Shows how well communication is with the R/C unit’s microprocessor.
OK: Indicates that the SH3 communicates well with the R/C unit’s microprocessor.
NG: Indicates that the SH3 fails to communicate with the R/C unit’s microprocessor.
ROM : XXXX :
Sum-checks the ROM. The ROM’s sum-check results are displayed via the SH3.
FLASH :
Indicates the condition of the flash.
OK : Indicates that the flash is read correctly.
NG: Indicates that the fixed values on the flash are not correctly read.
MMC:Checks the MMC’s boot-up.
This check goes from the MMC1 to the MMC3.
OK: Indicates that the MMC gets booted correctly.
NG: Indicates that the MMC fails to get booted.
ST20:Checks the ST20’s boot-up.
OK: Indicates that the ST20 gets booted correctly.
NG: Indicates that the ST20 fails to get booted.