JVC KD-R691 Schematic Diagrams

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SECTION 5
TROUBLESHOOTING
5.1 Power sequence
Flag (ON=3.3V, OFF=0V)
SDA/SCL
EXT
ILM10.5V
CD7V
AUD (8.5V)
TU3.3V
VDD
: IC701 Micon control
Dotted Line: Standby Circuit
max typ
+B
14V
IC301
Power Amp
Main
External Sxi
300mA
500mA
150mA
90mA
*No Signal
*typ Measured value
10A
14V
14V
Marine Remote
14V
uCON (Pin99)
R900~R903
ACC
uCON (Pin95,Pin96)
14V
14V
DCDC
Freq_Sel
PON_USB
DC CORD
(Auto Ant & REMOTE)
Main 350mA
Type E
10.5V
LED
SWITCH PWB
184mA
950mA
35mA
0.33
Muting circuit Q270 & Q27
IC161 Evol
CD Mecha
CD Mecha
LCD Driver
LED
Panel
Main
Main
Main
Panel
Tel-mute pull up Main
Main
Main
Main
IC411
7.5mA
200mA
200mA
1mA
2mA
0.6mA IC90 Remote
3.3V
Always ON
Mute Circuit Q272 & Q27
Panel3.3V
uCON VDD
uCON SW3.3V
IC601 Tuner
Main
IC482 Marine circuit Main
IC822 Main 50mA
IC831 Main 8mA
1.25V
uCON 1.25V
80mA
1800mA
70mACD Mecha
CD Mecha 110mA
408mA
3A
5.2V
350mA
184mA
950mA
1800mA
2388mA
35mA
61mA
80mA
141mA
408mA
180mA
408mA
IC901 Pin13 (Supply for TU3.3V)
CD LSI
Front USB
CD Pickup
ACC_DET
1300mA
450mA
300mA
350mA
250mA
IC861
IC901
SYSREG
VCC2
BU_
DET
VCC1
SDA/SCL
(Panel attach)
SDA/SCL
(CD Insert)
350mA
IC851
VD
D
HSS
IC891
5.2V
Shunt
regulator
IC3
LCD Driver
IC1
ON =6.2V
OFF=3.2V
LDO
IC941
PON_CD
SDA/SCL
SDA/SCL
SDA/SCL

JVC KD-R691 Specifications

General

Brand	JVC
Model	KD-R691
Category	Car Receiver
Language	English