Block Diagram - JVC KD-LH915 Service Manual

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3 7 6 3 1 5 1 5 0

Block diagram

CD servo control section
AD0 to AD11
I00 to I03
CAS, RAS
IC653 IC652
OE, WE
DRAM
MP3/WMA
DEC
BCK
LRCK
TRACKING+ DATA
TRACKING-
FOCUS
FOCUS+
&
FOCUS-
IC601
TRACKING
CD RF &
COIL
SERVO
VT1, VT2, VF1, VF2
MDI, LDO, PVREF
TRACKING+, TRACKING-
PICK UP
VA, VB
FOCUS+, FOCUS-
VE, VF
LD, MD
VREF
SW1
SW2
SW1
T E SW3 REST, SW1, SW2, SW3, SW4
L 1 3 9 4 2 2 9 6 5 1 3
SW2
SW3
SW4
SW4, REST
REST SWITCH
LOAD/FEED+, LOAD/FEED-
SPINDLE
SPINDLE+, SPINDLE-
MOTOR
LOAD&FEED
MOTOR
LCD & Key control section
OSC, CS2, RES, WE
LCD
RE/RD, A0, D0 to D7
MODULE
KEY0, KEY1
KEY2
S401 to S415
KEY MATRIC
D451 to D453
w w w
LCD LIGHTING
.
MP3REQ, MP3CK, MP3DA, MP3STB, MP3RST
SDO
IC410
VOUTL, VOUTR
BCKO
CD LPF
DACML
IC401
LRCKO
DACMC
24BIT DAC
DACMD
BUS0 to 3
BUCK, CCE
DSPRST
RWSEL
FMO, DMO
IC681
TRO, FOO LOAD, LD/FE
CD
DRIVER
CD.L-CH
CD.R-CH
CDRESET
B.DET, P.DET
CDMUTE
CDREQ
PICTCLK BUSSI/SO
PICTDI BUSCLK
IC503
J-BUS
IC501
BUFF
CPU
IC502
E2PROM
SDCS
SDDO
SDDI
SDCK
SDWP
TO
C.DET1
SD CARD
IC405
IC401
KEYDA, DISPCE
REMOCON
DISPCK, DISPDA
LCD
ANA, PICTCLK, PICTDI REM
MICON
A0 to A20, D0 to D15
CL1
RY/BY, RE/RD, CS1
CL2
WE, ROMRST
CL3
IC402
Q421 to Q438
FLASH ROM
LED DRIVER
x a o
y
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8
Main amplifier section
J1
ANT TU.L
TU1
TU.R
FM/AM
TUNER
SD/ST, AFCK
SM, SQ
SEEK, FM/AM
PLLCE, PLLDA
PLLCK, PLLDI
Q781, Q782
MUTE
CONTROL
CD.L
CD.R
VOL.DA, VOL.CL
CDRESET
CDMUTE
CDREQ
RESET
B.DET
P.DET
BUSSI/SO
E2PROMCK
BUSCLK
Q Q E2PROMDI
3 IC701 7 6 3
E2PROMDO
CPU
LPF1, LPF2
SBT
SBD
STEERINGREM.
BUSI/O, BUSCLK
BUSI/O
BUSSO
SI/SO
BUSINT
SCK
IC801
BUSCLK
JVC BUS
DISPCK
DISPDA
EFD-OUT1
DISPCE
EFD-OUT2
REMOCON
LEVEL
KEYDATA
IC704
EFD-IN1
EFD-IN2
BUFFER KEY
EFD-IN3
u 1 6 3
.
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2 4
9 9 8
FL
FR
IC361
RL
IC381
RR
LINE AMP.
Q321, Q331
Q341, Q351
LINE OUT
MUTING
MUTE
IC301
POWER
AMP.
FL, FR, RL, RR
FRONT LEFT (+)
FRONT LEFT (-)
IC161
FRONT RIGHT (+)
E.VOLUME
FRONT RIGHT (-)
REAR LEFT (+)
EACH BLOCK
REAR LEFT (-)
REAR RIGHT (+)
IC702
REAR RIGHT (-)
RESET
IC901
REGULATOR
1 5 1 5 0 8 9 2 4
IC703
EPROM
SWOUT
IC271 IC251
SUBWOOFER SUBWOOFER
SELECTOR AMP.
CH.L
CH.R
SCK
OUT1
IC951
OUT2
MOTOR DRIVER
m
c o
2
9 9
J321
FRONT
LINE OUT
REAR
LINE OUT
SPK
BATTERY
9 8 2 9 9
SUB WOOFER
OUT
STEERING
REMOTE
CD CHANGER
CONTROL
TO
DOOR MOTOR
TO
MODE SWITCH
2-1