Block Diagram; Lcd & Key Switch Section; System Control & Audio Amp Section - JVC UX-G38B Service Manual

Block diagram

LCD & Key switch section
D2411
DI221
F+/-
STANDBY
LCD DISPLAY
LED
VFDCLK
GR1 to 10
VFDSTB
LED1
SG1 to 16
VFDDIN
IC221 VFDDOUT
LCD DRIVER
-VDISP
KEY0, KEY1
LINEIN, FM/AM
S2501 to S2507
USB, CD
S2509 to S2512
KEY MATRIX
VOL1
JS261 VOL2
VOLUME
IC241
REMOCON
REMOCON
LINE/HP/USB Jack section
LINE IC401 LINEINL/R
IN LINE IN AMP.
LINE LINEOUTL/R
OUT
HPOUTL/R
HPDET
HEADPHONE
USB
D+/-
CN104
CN101
USBD+/-
USB5V
IC102,Q101
USB 5V REG.
USBNPP
USBCS, USBREQ, USBSDA, USBSCL, USBRST, USBIN
IC101
CDMCCLK, CDMDATA
USB
CDMLD, CD_NRST
CONTROLER
X101
12MHz
SP+/-
CD traverse TRV+/-
TRVP, SPOUT
mechanism
IC601 TRP, FOP
FO+/-
TR+/- BTL. AMP.
A+C, B+D, E, F
CD pickup
LD, PD
mechanism
S201 PULSW
REST SW
LDSWOP
LDSWCL
S1
LDOPEN
TRAY SWITCH
LM+/- IC721 LDCLOSE
LOADING
LOADER
M
MOTOR
Loader section CD servo control section
System control & Audio Amp section
LINEINL/R
Q4601
LINEOUTL/R Q4603
LINEOUT
MUTE VOLUME
IC801
LMUTE
HPOUTL/R Q8102,Q8103
Q8301
HP AMP./MUTE
HPMUTE
HPDET
VFDCLK
VFDSTB
VFDDIN
VFDDOUT
KEY0, KEY1
LINEIN, FM/AM
IC701
USB, CD
VOL1, VOL2
REMOCON
MICON
-VDISP
F+/-
Q3701
FVFD
Q3702
VFD SW
BUPMOD
BUPCTL
E2CLK
F+/-
E2DATA
Q7002
IC702 X7001 Q7003
BUP
EEPROM 8MHz
USB4V
US6V
US6V
CD8V
USBSEL
CDCLK, CDDATA
IC605
CDLD, CDRST
CD/USB
SELECT SW
CDSTAT
MCLK, MDATA
MLD, NRST
CDIRQ
IC602 CDL/R
DSP
X601
16.93MHz
Primary & Regulator section
IC452
L5
Q4501 R5
to Q4503
QP LINK
FQPL
Q4604
QPLINK LSEL0
Q4606 RSEL0
LINE
LOUT
LOUTLEVEL
ROUT
VOLCE
VOLCK
VOLDT
CDL/R
RESETIN
Q7001
RESET
FUSB
IC373 USBCS
USB4V
USBREQ
USB4V
USBSDA
REG.
USBSCL
FCD
USBRST
US6V
SAFETY2
USBIN
USBSEL
Q3501
CDCLK
CD8V
Q3502
CDDATA
CD8V CDLD
CDRST
REG.
CDSTAT
CDIRQ
16.5V
PULSW
LDSWOP
CDL/R
LDSWCL
CN709
CN702
LOPOUT
LINP
ROPOUT
Q3601,Q3602 RINP
AHB POWER AMP.
IC303
AHBPRO
E.VOLUME
TUNERL/R
FTU
Q3801 to Q3804
SAFETY1
TU9V REG.
SW9V
Q3401,Q3402
FSW9V
SW9V REG.
16.5V
US4V
IC372
US4V REG.
US6V
LDOPEN
LDCLOSE
CN373
CN901
US6V
IC903
IC901
US6V REG.
SW REG.
CONTROL
16.5V
D954
-VDISP
T901
D951
POWER
F+/-
TRANS.
D953
L+/-
TO
IC501 R+/-
SPEAKER
POUT
SMUTE
SAFETY3
TUCE
TUCK
TUDTI
TUDTO
TUNER
RDSCK
UNIT
RDSDT
RDSON
TU9V
16.5V
D901
DIODE AC IN
BRIDGE
2-1