JVC GRAX777UM
Manual de Servicio

TABLE OF CONTENTS
DIFFERENT TABLE ..................................................................................................................................................... 1 to 4 4. CHARTS AND DIAGRAM 4.1 LCD CTL SCHEMATIC DIAGRAM ........................................................................................................................ 4-1 4.2 C-VF BL SENSOR SCHEMATIC DIAGRAM .......................................................................................................... 4-3 4.3 MAIN CIRCUIT BOARD ........................................................................................................................................ 4-5 4.4 C-VF CIRCUIT BOARD ....................................................................................................................................... 4-11 5. PARTS LIST 5.1 PACKING AND ACCESSORY ASSEMBLY <M1> ................................................................................................. 5-1 5.2 ELECTRONIC VIEWFINDER ASSEMBLY <M4> ................................................................................................... 5-3
The following table indicate main different points between models GR-AX760U,GR-AX777UM and GR-SX877UM.

ITEM

MODEL

GR-AX760U
B/W NOT USED NOT USED MOLD BLACK 400 X NOT USED 50 X/400 X/OFF NOT USED NOT USED NOT USED

GR-AX777UM

GR-SX877UM
COLOR USED USED SILVER

VIEW FINDER VIDEO LIGHT IR RECEVER BODY COLOR TOTAL ZOOM RATIO LIGHT SW DIGITAL ZOOM S-VHS ON/OFF S OUT PUT REMOTE CONTROL UNIT(RM-V715U) Note: Mark is same as left.

600 X USED 50 X/600 X/OFF USED USED USED

The following table indicate different parts number between models GR-AX760U,GR-AX777UM and GR-SX877UM. PACKING AND ACCESSORY ASSEMBLY <M1>

! REF NO.
1 !5
!

ITEM
PACKING CASE IB(EN) IB(SP) REGIST.CARD REMOTE CONTROLLER BATTERY,X2,AAA(R03)

MODEL

GR-AX760U
LY32179-001A LYT0689-001B BT-51020-2
�� ��

GR-AX777UM
LY32054-0A4A LYT0731-001A LYT0731-002A
��

GR-SX877UM
LY32054-0A6A

7 16 18

LY42129-001A USED

FINAL ASSEMBLY <M2>

! REF NO.
! 101

ITEM

MODEL

GR-AX760U
LY20684-001B LY20683-002B
��

GR-AX777UM
LY20683-006B LY30934-017A

GR-SX877UM
LY20684-003B LY20683-018A LY32040-001A
��

LOWER CASE ASSY 104 FRONT COVER ASSY 104E DC LIGHT COVER(LIGHT) 104F SPACER(A) ! 104H CAUTION LABEL 104J STICKER(A) 105 CASS.COVER(S) ASSY 105D WINDOW(S) 105E STICKER(B) 106 UPPER CASE(S) 109 TOP OPE UNIT 130 FRAME ASSY 130E CONTACT(LIGHT) 130F E-SI C WIRE C-F Note: Mark �� is not used. Mark

LY30934-015A
�� ��

LY32058-001A LY20680-002A LY32023-002A LY32059-001A LY10272-007A LY20614-004B LY20678-002A
�� ��

LY10272-011A

LY30029-0B4A YQ44341-6 LY32058-002A LY20680-009A LY32023-003A LY32059-002A LY10272-012A LY20614-001B LY20678-001A YQ43810-1-1 WJM0167-001A

is same as left.

1