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Adjustment; Troubleshooting - JVC TH-L1A Service Manual

Digital media system
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4.1
EXTENTION CABLE
When do the operation check or do the confirm SPECIAL MODE, please use the extention cables connect to Main amp board and
Power supply board.
1. EXTTHL1-7P × 2 pcs
2. EXTTHL1-6P × 1 pc
4.2
SPECIAL MODE
MODE NAME
COLD START
POWER + STOP + 0
ALL FL lighting
POWER + STOP + 1
Temprature display
POWER + STOP + 2
Error histry
POWER + STOP + 3
Version display
POWER + STOP + 10
Volume down display POWER + STOP + >10
This service manual does not describe TROUBLESHOOTING.
1-14 (No.MB623)
All manuals and user guides at all-guides.com
SECTION 4

ADJUSTMENT

CODE
2 times receive the code when P.OFF condition, "COLD SET" indicate on FL display
during 3 seconds, after temporaly P.ON operation.
And the indication finished, go to P.OFF mode.
Then COLD START operation should start by AC plug ON/OFF.
Receive the code when P.ON condition,
1. LED turn on one by one.
STANDBY->VIDEO1->VIDEO2->VIDEO3->iPod->USB->ILLUMINATION
2. FL lights up all of segment.
3. VOLUME control by remocon (VOL+/VOL-), should be high speed mode until P.OFF.
POWER and AMP part temprature is displayed
It is displayed safety condition.
It can use only p.off condition.
There are below kainds.
SAFETY REG, SAFETY IPOD, SPEAKER DC DETECT, POWER TEMPERATURE,
AMP TEMPERATURE, SAFETY LINE, SAFETY HDMI,S AFETY FAN,
SAFETY P.AMP SD,S AFETY P.AMP OTW
Receive the code when P.ON condition,
1. Indicate Syscon version
Syscon version:"SC ## $$" (##:Sys version,$$:Sys ROM correction)
2. Indicate Unit version
Unit version:"BE %%%%"(%%%%:Unit version)
3. Indicate destination and chip select
Destination, Chip select:"$$ %% "($$:sys destination , %%%:chip select "L1"or"L11")
Each display during 5 seconds temporary.
Curret volume value
Receive the code when P.ON condition, Indicate volume down cause by safety4.
SECTION 5

TROUBLESHOOTING

FUNCTION

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