3D
phonic, radio data system, MP3-WMA-WAV-MPEG-3 ASF PLAYBACK – Digital Direct
Progressive Scan
Output Power: 120 W (60 W + 60 W) at 6Ω (10% THD
Speaker units:
Tweeter: 4 cm cone × 1
Woofer: 12 cm cone × 1
Impedance: 6Ω
Disassembly procedure
Main body
Removing the Metal cover
(See Fig.1 and 2)
(1) Remove the four screws A (both side) attaching the Metal cover. (See Fig.1)
(2) Remove the two screws B attaching the Rear cover. (See Fig.2)
(3) Remove the five screws C attaching the Metal cover. (See Fig.2)
Removing the Front panel assembly
(See Fig.3 to 5)
(1) Disconnect the card wire from the FL board assembly connected to connector CN205 of the Micon board assembly. (See Fig.3)
(2) Remove the two screws D attaching the Front panel assembly. (See Fig.4)
(3) Disengage the hook a (Fig.4) and hook b (Fig.5) from the bottom chassis. (See Fig.4, 5)
Removing the Fan
(See Fig.6, 7)
(1) Disconnect the connector wire from the Fan connected to connector CN602 of the Audio board assembly. (See Fig.6)
(2) Remove the two screws E attaching the Fan. (See Fig.7)
Removing the Tuner pack
(See Fig.7, 8)
(1) Disconnect the card wire from the Tuner pack connected to connector CN11 of the Micon board assembly. (See Fig.8)
(2) Remove the two screws F attaching the Tuner pack. (See Fig.7)
Removing the Audio board assembly
(See Fig.9 to 11)
(1) Disconnect the connector wire from the Power transformer connected to connector CN601 of the Audio board assembly. (See Fig.9)
(2) Disconnect the card wire from the USB jack board assembly connected to connector CN811 of the Audio board assembly. (See Fig.9)
(3) Disconnect the card wire from the Audio board assembly connected to connector CN203 of the Micon board assembly. (See Fig.9)
(4) Disconnect the card wire from Micon board assembly connected to connector CN217 of the Audio board assembly. (See Fig.9)
(5) Disconnect the card wire from DVD mechanism assembly connected to connector CN722 of the Audio board assembly. (See Fig.9)
(6) Disconnect the card wire from USB jack board assembly connected to connector CN810 of the Audio board assembly. (See Fig.9)
(7) Disconnect the card wire from Micon board assembly connected to connector CN219 and CN220 of the Audio board assembly. (See Fig.9)
(8) Remove the two screws G attaching the Audio board assembly. (See Fig.9)
(9) Remove the two screws H attaching the Power amplifier IC. (See Fig.10)
(10) Remove the three screws J attaching the Amplifier board assembly. (See Fig.11)
Removing the Micon board assembly
(See Fig.12, 13)
(1) Disconnect the connector wire from Power transformer connected to connector CN202 of the Micon board assembly. (See Fig.12)
(2) Disconnect the card wire from Power trans board assembly connected to connector CN201 of the Micon board assembly. (See Fig.12)
(3) Disconnect the card wire from DVD mechanism assembly connected to connector CN21, CN711 and CN831 of the Micon board assembly. (See Fig.12)
(4) Disconnect the card wire from the USB jack board assembly connected to connector CN206 of the Micon board assembly. (See Fig,12)
(5) Remove the two screws K attaching the Micon board assembly. (See Fig.12)
(6) Remove the four screws L attaching the Micon board assembly. (See Fig.13)
Removing the DVD mechanism assembly
(See Fig.14 to 16)
(1) Remove the two screws M (both side) attaching the bracket. (See Fig.14)
(2) Disconnect the connector wire from DVD mechanism assembly connected to connector CN803 of the USB jack board assembly. (See Fig.15)
(3) Remove the one screw N attaching the DVD mechanism assembly. (See Fig.16)
Removing the USB jack board assembly
(See Fig.17)
Remove the one screw P attaching the USB jack board assembly.
Removing the Power transformer board assembly
(See Fig.18 to 20)
(1) Remove the one screw Q attaching the Power trans board assembly. (See Fig.18)
(2) Remove the one screw R attaching the Power trans board assembly. (See Fig.19)
(3) Disconnect the connector wire from Power cord connected to connector CN101 and disconnect the connector wire from Power transformer connected to connector CN102 of
the Power trans board assembly. (See Fig.20)
Removing the FL board assembly
(See Fig.21)
(1) Remove the five screws S attaching the FL board assembly.
3.1.11 Removing the Key board assembly
(See Fig.21)
(1) Remove the Volume knob.
(2) Remove the six screws T attaching the Key board assembly.
(3) Disengage the six hooks c engaged Key board assembly.
DVD mechanism. Removing the traverse mechanism
(See Fig.1 to 6)
(1) Remove the two screws A attaching the tramecha holder from top side of DVD mechanism assembly. (See Fig.1)
(2) Remove the two screws B attaching the DVD module board. (See Fig.2)
(3) Remove the four screws C attaching the CB holder and take out it. (See Fig.3)
(4) Remove the four screws D attaching the traverse mechanism. (See Fig.4)
(5) Solder the solder part of DVD pick up. (See Fig.5)
(6) Disconnect the card wire from CN101 and CN201 on the DVD module board. (See Fig. 6)
Caution:
• Solder the short land section on the DVD pickup before disconnecting the card wire from the connector on the DVD pickup. If the card wire is disconnected without attaching solders, the pickup may be destroyed by static electricity. • When attaching the DVD pickup, be sure to remove solders from the short land section after connecting the card wire to the connector on the DVD pickup.
Removing the pickup assembly
(See Fig.7 to 11)
(1) Remove the two rod springs pressing the guide shaft. (SeeFig.7)
(2) Remove the screw E and F attaching the spring holder. (See Fig.8)
(3) Remove the read screw from traverse mechanism assembly. (See Fig.9)
Caution:
When remove the lead screw, do not loss the middle gear. (See Fig.10 and 11)
(4) Remove the bar spring pressing the shaft. (See Fig.10)
(5) Take out the pickup assembly from traverse mechanism chassis by order. (See Fig.11)
Removing the feed motor assembly
(See Fig.12)
(1) Remove the one screw G attaching the feed motor assembly.
(2) Remove the feed motor wires from solder part of spindle motor board.
Removing the spindle motor assembly
(See Fig.13)
Remove the two screws H attaching the spindle motor from spindle motor board.
Removing the tray assembly
(See Fig.14 & 15)
(1) Remove the two screws J attaching the clamper base. (See Fig.14)
(2) Remove the one screw K attaching the shaft guide from bottom side. (See Fig.14)
(3) Remove the two screws L attaching the shaft guide from top side. (See Fig.15)
Caution:
When attach the tray assembly, boss of loading sub assembly should attach to guide of bottom side at tray assembly. (See Fig.15)
ADJUSTMENTS
Attention in service of DVD section
(1) When pickup, Flash ROM, DVD module board were changed, initialize EEPROM by all means.
(2) When full initialization was executed, execute learning with a DVD test disk by all means.
Test disc : VT-501, VT-502
Learning method: It is adjusted automatically by normal playback of a DVD test disc.
DVD test mode
TO ENTER DVD TEST MODE, TO EXIT DVD TEST MODE
(1) During TEST MODE (except for Device Key write & DVD Region Re-write), press POWER key.
(2) To exit TEST MODE for Device Key Write & DVD Region Re-write, first AC OFF, then AC ON again to return to normal state.
DVD MODULE EEPROM INITIALIZATION, DEVICE KEY CHECKSUM DISPLAY
DVD CHECK MODES
(1) AC Power OFF.
(2) Press and hold DVD/CD + keys on the front panel. Then AC power ON while holding these keys.
(3) DVD mechanism will start in TEST MODE. The following will be display on the set.
xx = Destination information as follows; JC/1U/D/E/2U/3U/UB/UT/4U/UY/EE/UF
y = region number
v = study state information from MECHA-CON
w = initialization state from MECHA-CON
TO EXIT DVD TEST MODE
(1) During TEST MODE (except for Device Key write & DVD Region Re-write), press POWER key.
(2) To exit TEST MODE for Device Key Write & DVD Region Re-write, first AC OFF, then AC ON again to return to normal state.
DVD MODULE EEPROM INITIALIZATION
DEVICE KEY CHECKSUM DISPLAY
(1) During TEST MODE, press MENU key on remote control to enter DEVICE KEY CHECKSUM display for DVD-AUDIO (CPPM).
(2) System will display as follows.
(3) Press MENU again to enter DEVICE KEY CHECKSUM display for DVD-VR MODE (CPRM).
(4) System will display as follows.
JVC UXG68E, UXG68EN, UXG68EV – EXPLODED VIEW, CIRCUIT DIAGRAM – EXPLODED VIEW AND PRINTED CIRCUIT BOARDS
MICRO COMPONENT SYSTEM – JVC UX-G68E, UX-G68EN, UX-G68EV circuit diagram, block diagram, printed circuit boards and exploded view
Audio section schematic
Microcontroller section schematic
Front panel section schematic
Video control section schematic
DVD section schematic
Printed circuit boards
Exploded view
