Section 2 Specific Service Instructions - JVC KW-V11E Service Manual

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.
Meltdown point
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
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 Regulator
IC111 Regulator
IC131 Regulator
IC151 Regulator
IC171 Regulator
IC172 Hi-side SW
IC173 Regulator
IC174 Regulator
IC201 Power IC
IC301 Electric Vol IC
IC341 Isolation Amp
IC351 Video selector IC
IC361 Video selector IC
IC362 Video buffer
IC401 TUNER IC
IC471 Regulator
IC501 MCU IC
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
Parts Number
F53-0513-08
System DC Regulator IC
D3.3V DCDC convertor IC
Mecha8V DCDC convertor IC
22V/-20V DCDC convertor IC
D5.8V DCDC convertor IC
Current limit
For USB5V Regulator IC
For Mecha5V Regulator IC
Power AMP
Audio Vol Control, Audio Signal
Select
For iPod-V
Video selector to LCD
Video selector to VOUT
VOUT Video driver with LPF
TUNER IC
For CD5V Regulator IC
System control IC
(No.MA601<Rev.001>)11/30
SPEC
4A
Ref. No. Application / Function Operation / Condition / Compatibility
IC502 Voltage detect IC
IC503 EEPROM
IC711 AND Logic IC
IC721 AND Logic IC
IC801 MCU IC
Q31 Transistor
Q32 Transistor
Q33 Transistor
Q34 Transistor
Q35 Transistor
Q36 Transistor
Q37 Transistor
Q41 Transistor
Q42 Transistor
Q43 Transistor
Q51 Transistor
Q91 Transistor
Reset signal generate at 2.4V
Memory
Navi(SXI) TX 3.3V→
5.0V convert
Navi(SXI) RX 5.0V→
3.3V convert
DAB control IC
SURGE_DET control
SURGE_DET control
SURGE_DET control
SURGE_DET control
BU_DET control
BU_DET control
BU_DET control
ACC_DET control
ACC_DET control
ACC_DET control
ILUMI control
Parking control