JVC UX-QX3WA Service Manual page 31

Block diagram
CD servo control section
TBAL, FBAL, FE, TE
PICKUP
GCTL, RFENV, OFT
A+C, B+D, E, F IC601
BDO, ARF, /RFDET
MD, LD
RF & SERVO
FOCUSING T+/-, F+/-
AMP
COIL
TRACKING
COIL
LOADING
LD+/-
MOTOR
OPEN, CLOSE
S1
TRAY
SWITCH
SW601
REST
REST
SWITCH
FEED
FM+/- IC801
MOTOR
FOCUS, SPINDLE
FWD
FEED, TRACKING
REV
DRMUTE
M601
LOADING BTL
SM+/-
SPINDLE
DRIVER
MOTOR
CD mecha LED section
LCDR, LCDG, LCDB
D1,D2
RCDR, RCDG, RCDB
LED
OUTL
IC651
OUTR
DSP
TRD
FOD
MON,
FEED
XTCK
SPINDLE
TXTD
X651
AD0 to AD10
DQSY
33.8688MHz D0 to D3
/RST_DSP
STAT
IC671
BLKCK
DRAM
MLD
MDATA
/DCAS
MCLK
/DRAS /CAS
FLAG
IC682
/RAS
CASCNT
P.ON
RASCNT
IC681
/DWE
/WE
WECNT
E2PSDA
IC201
E2PSCL
IC251 EEPROM
UNIT
X251
MICON
8.38MHz
TXDO
RXDO
/RESET
System control section
QA781 to QA785
Q7801 to Q785
CLEDR
LCDR
LDE DRIVER
CLEDG
LCDG
LCDB CLEDB
RCDR LLEDR
LLEDG
RCDG
LLEDB
RCDB IC701
RLEDR
RLEDG
E2CLK
RLEDB
MICON
IC741
E2DATA
EEPROM
BUP
Q7301,Q7311
RESET
BUP,RESET
VOLCE CDCMD
VOLCK CDSTAT
VOLDATA CDRESET
AHB QPLINK
PS1 SMUTE
PS2 AUXMUTE
MIXLEVEL POUTAMP
EXCTL POUTSW10
SOUNDCTL FCD
PROTECT
AUXSW
FANON
IC401
SENSOR1
Q4301 to Q4306
DETECTOR AMP.
CN707 CN706
CN102 CN103
Main amplifier section
CDCMD
CDSTAT
CDRESET
CDL/R
Q6151,Q6251
AHB
AHB
PS1, PS2
MIXLEVEL
EXCTL
FAN_ON
IC601
SOUNDCTL
ALPHA SOUND
OUTL2/R2
VOLCE
LOUT, ROUT
VOLCK
VOLDATA
TUL/R
IC311
LSELO, RSELO
FUNCTION VOL.
AUXIL/R
CD5V
IC250
FCD
CD5V REG.
SMUTE
CD8V
IC280
CD8V REG.
SW10V
IC240
POUTSW10V
SW10V REG.
S1+
LCD & LED section
LLCR, LLCG, LLCB
RLCR, RLCG, RLCB
STANDBYLED
LCDSO
LCDSCL
LCDCSB
LCDSO, LCDSCL
LCDRS
LCDCSB, LCDRS
LCDXRESET
X7002
LCDXRESET
STANDBYLED LLCR, LLCG
32.768kHz
LLCB, RLCR
RLCG, RLCB
X7001
8MHz
CVOR
Key & LED section
CVOG
CVOB
FKEY1
REM, KEYP, FKEY1, FKEY2, JOGL/R FKEY2
US6V
KEYP
CVOR
Q7901
CVOG
to Q7903
CVOB
US6V REG.
REM
SUBTRDC
FTU
JOGL/R
Q7351
TUCE
TUCLK
to Q7353 TU9V
TUDATAI
TU9V REG.
TUDATAO
TUNER
SW10V
TUL/R
UNIT
POUTRELAY
CN713
Trans & Diode bridge section
FW903
D2901
S1A
S1+
to D2904
S1B
DIODE
US6V
BRIDGE
POUTRELAY
RY901
SUBTRDC
Q9001
RELAY
Q3037
D9002
Q3038 FAN
to D9005
T9002
FAN MOTOR
DIODE
POWER
DRIVE
BRIDGE
TRANS.
Q1101,Q1102
Q1201,Q1202
PROTECT
Q1301
PROTECTOR
-OUTL/R
POUTAMP
L+
IC101 SPEAKER
R+
Q1103,Q1203 INL
POWER
INR
Q1302
AMP.
+OUTL/R
SYSTEM MUTE
AUXSW
AUXMUTE
Q3380
AUXOL/R
AUXOL/R
to Q3382
AUX MUTE
QPLINK
IC391,IC392
AUXIN-L/R
Q3190
QP LINK
Q5300,D5300
STANDBY LED
DI531
LCD DISPLAY
D5341,D5351
ILLUMI.
S5001 to S5013
KEY MATRIX
S5014
POWER SW
D5033
VOL ILLUMI.
IC501
REMOCON
JS501
VOLUME
S1A
S1B
T9001
POWER
TRANS.
AC IN
L+, R+
HEAD
+OUTL/R
PHONE
AUX
AUXOL/R
OUT
AUXIL/R
AUX
AUXSW
IN
2-1