
SERVICE MANUAL
GR-DVL320ED,520ED,525ED,925ED
Regarding service information other than these sections, refer to the GR-DVL160EG service manual (No. 86662).
Also, be sure to note important safety precautions provided in the service manual.
(The specifications shown pertain specifically to the model GR-DVL320,DVL520,DVL525,DVL925,DVL970,DVL1170)
This service manual is printed on 100% recycled paper.
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.
No. 86687
April 2002

DIFFERENT TABLE ................................................................................................................................................................................................................... 1 to 2
TABLE OF CONTENTS
4. CHARTS AND DIAGRAMS (4-1 to 4-4)
4.1 DSC SCHEMATIC DIAGRAM [GR-DVL525ED,DVL925ED] .................................................................................................................................................. 4-1
4.2 DSC CIRCUIT BOARD [GR-DVL525ED,DVL925ED] ............................................................................................................................................................ 4-3
5. PARTS LIST (5-1 to 5-8)
5.1 PACKING AND ACCESSORY ASSEMBLY <M1> .................................................................................................................................................................. 5-1
5.2 FINAL ASSEMBLY <M2> ....................................................................................................................................................................................................... 5-3
5.3 MONITOR ASSEMBLY <M5> [GR-DVL320ED,DVL525ED] .................................................................................................................................................. 5-6
5.3 MONITOR ASSEMBLY <M5> [GR-DVL520ED,DVL925ED] .................................................................................................................................................. 5-7
5.4 ELECTRICAL PARTS LIST [GR-DVL525ED,DVL925ED] ...................................................................................................................................................... 5-8
DSC BOARD ASSEMBLY <10> ............................................................................................................................................................................................... 5-8
The following table indicate main different points between models GR-DVL160EG-X, GR-DVL320ED, GR-DVL520ED, GR-DVL525ED, and GR-DVL925ED.
ITEM
LCD MONITOR 2.5” 3.5” 2.5” 3.5”
MEMORY CARD Not Used 8MB(MMC)
DV TERMINAL OUTPUT ONLY IN/OUT
TOTAL ZOOM RATIO 500X 700X
DSC Not Used Used
AC ADAPTER AP-V12EG AP-V12ED
MODEL
GR-DVL160EG-X GR-DVL320ED GR-DVL520ED GR-DVL525ED GR-DVL925ED
The following table indicate different parts number between models GR-DVL160EG-X, GR-DVL320ED, GR-DVL520ED,
GR-DVL525ED, and GR-DVL925ED.
PACKING AND ACCESSORY ASSEMBLY <M1> Note: As for IB (INSTRUCTIONS), refer to sec.5.
REF. MODEL
!
NO. ITEM
1 PACKING CASE LY32567-020A LY32567-011A LY32567-013A LY32567-014A LY32567-016A
2 CUSHION LY32568-001C *LY32923-001C * * *
3 POLY BAG LY30023-008A *LY30023-022A * * *
7 SHEET(AGREMENT) — LYT0934-001A
9 WARRANTY CARD BT-54013-2 BT-59011-2
12 SHEET(ATT.) — LYT0974-001A ——
13 SER.NET CARD — BT-59012-1
18 CABLE ASSY — — — PEAC0428-150
19 CORE FILTER — — — QQR0491-002
20 USB CABLE — — — QAM0324-001
21 CORE FILTER — — — QQR0491-002
22 PC CONNECTION CABLE — QAM0084-001A ——
23 CORE FILTER — *QQR0918-002 ——
! 24 AC ADAPTER LY20847-001C LY20847-002B
25 CORE FILTER QQR0490-002 *— *— QQR0917-002
! 26 POWER CORD QMPL120-190-JP QMPS120-190-JR
27 RM(EDITING)CABLE QAM0214-001 ——
32 REMOTE CONTROL UNIT LY20750-001A YQ20922R
33 BATTERY,X2 AAA(R03) — — — —
34 CD ROM ASSY — LY32210-022A LY32210-023A
37 MEMORY CARD — — — QAM0404-002
39 ADAPTOR PLUG QAM0302-001 — — — —
43 LI BATTERY — PECA0903
44 CORE FILTER — *QQR0491-002 * * *
45 POLY BAG — *QPA02502505P * * *
GR-DVL160EG-X GR-DVL320ED GR-DVL520ED GR-DVL525ED GR-DVL925ED
FINAL ASSEMBLY <M2>
REF. MODEL
!
NO. ITEM
101 UPPER CASE ASSY LY20774-001B *LY20774-001C LY20797-007B LY20774-003D LY20797-001D
101A TOP COVER LY20775-001A LY20776-001A LY20775-001A LY20776-001A
101B PLATE(UPPER) LY32371-002A LY32371-001A
101E COVER(SD) — — — LY32375-001B
101F SHAFT — — — LY43292-001A
101G SPRING — — — LY43293-001A
101J
101M SPECIAL SCREW,X2 LY30018-084A LY30018-038A LY30018-084A LY30018-038A
101N COVER(SD)DUMMY LY32376-001A ——
101P SPECIAL SCREW LY30018-023A ——
104 SPECIAL SCREW
108 KNOB(SLIDE) — — — LY43263-002A
113 FFC WIRE — — — QUQ105-1011AA
119 WINDOW(MONI2.5) LY32378-009A — — — —
120 STICKER(SIDE) LY43566-004A LY43566-008A LY43566-009A
122 SPECIAL SCREW,X2 — *LY30018-099A * * *
125 FRONT COVER ASSY LY32382-003A LY32382-009A LY32382-003A
126 STICKER(TOP) LY43567-001A LY43567-005A
140 LOWER CASE ASSY LY20769-002B *LY20769-002E * LY20769-003E
144 PLATE(ADJUST) LY43256-001A *LY43256-001B * * *
164 SPECIAL SCREW — — — LY30019-038A
EARTH SHEET/BRACKET(EARTH)
GR-DVL160EG-X GR-DVL320ED GR-DVL520ED GR-DVL525ED GR-DVL925ED
LY43540-001A *LY32886-001A LY32887-001A *LY32886-001A LY32887-001A
LY30018-066A(,X4)
*LY30018-066A(,X2)
* * *
MONITOR ASSEMBLY <M5>
REF. MODEL
!
NO. ITEM
500 MONITOR ASSY LYH20246-036A LYH20246-036C LYH20246-047C LYH20246-040C LYH20246-037C
501 MONITOR COVER ASSY LY20808-001A LY20808-001B LY20809-001B LY20808-002B LY20809-002B
501E MARK LY42883-001A *LY42883-001B * * *
501F WINDOW(MONI) — LY32378-009A LY32379-005A LY32378-009A LY32379-005A
502
502A EARTH MON(2) — — LY42388-001A — LY42388-001A
504 HOLDER LY20674-001A LY20568-001A LY20674-001A LY20568-001A
506 BACK LIGHT QLL0093-001 *QLL0121-001 QLL0123-001 *QLL0121-001 QLL0123-001
507 LCD MODULE QLD0154-001 QLD0203-001 QLD0154-001 QLD0203-001
511 SPACER(A) — *LY30029-0Y4A — *LY30029-0Y4A —
1
MONITOR CASE/MONITOR CASE ASSY
Notes : Mark — is not used. Mark
GR-DVL160EG-X GR-DVL320ED GR-DVL520ED GR-DVL525ED GR-DVL925ED
LY10264-001A LY20598-002A LY10264-001A LY20598-002A
is same as left. Mark * reference model was also changed.

MAIN BOARD ASSEMBLY <01>
REF. MODEL
!
NO. ITEM
PW MAIN BOARD ASSY YB10359PC-03 YB10359PF-02 YB10359PH-02
IC1001 IC(MICRO C ROM)
IC1006 IC(MICRO C ROM) MB90097PFV145 MB90099PFV121
IC1301 IC SN74LV08APW ——
IC1302 IC MAX3221CAE ——
IC1401 IC(MICRO C ROM)
IC1402 IC(DIGITAL) TC7W66FU ——
Q4802 TRANSISTOR ———2SC4617/RS/-X
Q4803 DIGI TRANSISTOR ———DTC143EE
Q4804 DIGI TRANSISTOR ———DTA144EE
Q4805 DIGI TRANSISTOR ———DTA143EE
R1059 MG RESISTOR NRSA6AJ-0R0W ——
R1307 MG RESISTOR ———NRSA6AJ-0R0W
R1308 MG RESISTOR ———NRSA6AJ-0R0W
R1415 MG RESISTOR ———NRSA6AJ-472W
R1416 MG RESISTOR ———NRSA6AJ-472W
R1427 MG RESISTOR NRSA6AJ-104W ——
R2127 MG RESISTOR NRSA6AJ-0R0W ——NRSA6AJ-0R0W
R2128 MG RESISTOR NRSA6AJ-0R0W ——NRSA6AJ-0R0W
R2203 MG RESISTOR — NRSA6AJ-0R0W
R4302 MG RESISTOR ———NRSA6AJ-101W
R4825 MG RESISTOR ———NRSA6AJ-222W
R4826 MG RESISTOR ———NRSA6AJ-473W
R4837 MG RESISTOR ———NRSA6AJ-0R0W
R4846 MG RESISTOR ———NRSA6AJ-0R0W
RA4307 NETWORK RESISTOR ———NRZ0034-221W
RA4308 NETWORK RESISTOR ———NRZ0034-221W
RA4309 NETWORK RESISTOR ———NRZ0034-221W
RA4310 NETWORK RESISTOR ———NRZ0034-221W
C1301 CAPACITOR NCFA1AZ-104W ——
C1302 CAPACITOR NCFA1AZ-104W ——
C1303 CAPACITOR NCFA1AZ-104W ——
C1304 CAPACITOR NCFA1AZ-104W ——
C1305 CAPACITOR NCFA1AZ-104W ——
C1306 CAPACITOR NCFA1AZ-104W ——
X3002 CRYSTAL RESONATOR NAX0480-001X NAX0206-001X NAX0480-001X
CN111 CONNECTOR ———QGB0501L1-80X
GR-DVL160EG-X GR-DVL320ED GR-DVL520ED GR-DVL525ED GR-DVL925ED
UPD703039F1-A25 UPD703039F1-A28
UPD703040YF-M09 UPD703040YF-M06
MONITOR BOARD ASSEMBLY <02>
REF. MODEL
!
NO. ITEM
PW MONITOR BOARD ASSY YB10360PB-02 YB10360PP-02 YB10360PY-02 YB10360PZ-02
D11 SI DIODE ———RSA6.1J4-W
R7 MG RESISTOR ———NRSA63J-103X
R8 MG RESISTOR ———NRSA63J-152X
R18 MG RESISTOR ———NRSA63J-473X
R19 MG RESISTOR ———NRSA63J-103X
R21 MG RESISTOR ———NRSA63J-103X
R22 MG RESISTOR ———NRSA63J-473X
R23 MG RESISTOR ———NRSA63J-104X
R7612 CMF RESISTOR NRVA63D-223X NRVA63D-682X NRVA63D-223X NRVA63D-682X
R7624 CMF RESISTOR ——NRVA63D-223X — NRVA63D-223X
R7625 CMF RESISTOR ——NRVA63D-223X — NRVA63D-223X
R7636 MG RESISTOR NRSA63J-101X NRSA63J-221X NRSA63J-101X
R7637 MG RESISTOR NRSA63J-101X NRSA63J-221X NRSA63J-101X
R7638 MG RESISTOR NRSA63J-101X NRSA63J-221X NRSA63J-101X
C11 T CAPACITOR ———NBE20JM-106X
C7636 CAPACITOR ——NCF31CZ-104X — NCF31CZ-104X
C7645 MG RESISTOR — *NRSA63J-103X — *NRSA63J-103X —
L10 FERRITE BEAD ———NQR0129-002X
L7605 COIL NQL365K-100X — NQL365K-100X —
L7606 COIL ——NQL365K-100X — NQL365K-100X
SW6 SLIDE SWITCH ———NSW0099-001X
SW7 TACT SWITCH ———NSW0160-001X
SW8 TACT SWITCH ———NSW0160-001X
CN762 FPC CONNECTOR ———QGF0508F1-10X
CN766 SD CARD CONNECTOR ———NNZ0058-001X
GR-DVL160EG-X GR-DVL320ED GR-DVL520ED GR-DVL525ED GR-DVL925ED
CCD BOARD ASSEMBLY <04>
REF. MODEL
!
NO. ITEM
PW CCD BOARD ASSY YB20914A-01 YB20914B-01
Q5202 TRANSISTOR ———2SC4081/RS/-X
R5205 MG RESISTOR ———NRSA63J-472X
GR-DVL160EG-X GR-DVL320ED GR-DVL520ED GR-DVL525ED GR-DVL925ED
DSC BOARD ASSEMBLY <10>
REF. MODEL
!
NO. ITEM
PW DSC BOARD ASSY ———YB20915B-04
GR-DVL160EG-X GR-DVL320ED GR-DVL520ED GR-DVL525ED GR-DVL925ED
Notes : Mark — is not used.
Mark
is same as left.
Mark * reference model was also changed.
2

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VIDEO DIVISION
S40894
Printed in Japan