JVC KW-V11E, Руководство по обслуживанию

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(No.MA601<Rev.001>)11/30
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 How to repair a fuse pattern
2.1.1 Purpose of fuse pattern
In order to prevent serious damage on the circuit, fuse pattern is prepared on the GND line of RCA Terminal. This damage may
take due to improper part replacement with a external equipment via RCA line.
2.1.2 Repair Procedure
(1) Check the shorted circuit at the meltdown point.
Need to clean up if the shorted circuit or carbonization happen at the fuse pattern.
(2) Add following parts on the fuse pattern.
(3) Check output level.
2.1.3 After finished repair
Due to improper part replacement, this meltdown occurs.
Thus please notice following information when the unit is return to your customer.
Things to be checked before installing the unit.
(1) Check the GND line of external amplifier or other equipment which must connect properly.
(2) Check whether the GND line is not short-circuited with the battery terminal. (do not short-circuit these lines)
2.2 COMPONENTS DESCRIPTION
2.2.1 MAIN PWB
Parts Number SPEC
F53-0513-08 4A
Meltdown point
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 Regulator System DC Regulator IC
IC111 Regulator D3.3V DCDC convertor IC
IC131 Regulator Mecha8V DCDC convertor IC
IC151 Regulator 22V/-20V DCDC convertor IC
IC171 Regulator D5.8V DCDC convertor IC
IC172 Hi-side SW Current limit
IC173 Regulator For USB5V Regulator IC
IC174 Regulator For Mecha5V Regulator IC
IC201 Power IC Power AMP
IC301 Electric Vol IC Audio Vol Control, Audio Signal
Select
IC341 Isolation Amp For iPod-V
IC351 Video selector IC Video selector to LCD
IC361 Video selector IC Video selector to VOUT
IC362 Video buffer VOUT Video driver with LPF
IC401 TUNER IC TUNER IC
IC471 Regulator For CD5V Regulator IC
IC501 MCU IC System control IC
IC502 Voltage detect IC Reset signal generate at 2.4V
IC503 EEPROM Memory
IC711 AND Logic IC Navi(SXI) TX 3.3V
→
5.0V convert
IC721 AND Logic IC Navi(SXI) RX 5.0V
→
3.3V convert
IC801 MCU IC DAB control IC
Q31 Transistor SURGE_DET control
Q32 Transistor SURGE_DET control
Q33 Transistor SURGE_DET control
Q34 Transistor SURGE_DET control
Q35 Transistor BU_DET control
Q36 Transistor BU_DET control
Q37 Transistor BU_DET control
Q41 Transistor ACC_DET control
Q42 Transistor ACC_DET control
Q43 Transistor ACC_DET control
Q51 Transistor ILUMI control
Q91 Transistor Parking control
Ref. No. Application / Function Operation / Condition / Compatibility