JVC AV-27F702/AS Service Manual

SERVICE MANUAL

COLOR TELEVISION

AV-27F702

BASIC CHASSIS

AC

AV-27F702

/AS

Supplementary

The following items for the AV-27F702/AS model were changed from those of the AV­27F702
Therefore, this service manual describes only the items which differ from those of the
AV-27F702
For details other than those described in this manual, please refer the AV-27F702
ice manual (No. 51786, Jan., 2001).

/S model.

/S service manual.

/S serv-

 DIFFERENCE PARTS LIST



EXPLODED VIEW PARTS LIST (Page 30)

Model No. & Parts No.

! Ref. No. AV-27F702/S AV-27F702/AS Parts Name Remarks

! T1502 QQH0084-001 QQH0119-001 FBT Not Interchangeable
! V01 A68QCP891X001 A68QCP893X001 PICTURE TUBE ↑

9 QYSBSB4012Z GQ40014-001A-A TAPPING SCREW ↑

! 11 LC20626-002B-A LC20626-001D-A TERMINAL BOARD ↑
! 13 LC10880-001C-A LC10880-001D-A REAR COVER ↑

15 LC30684-005A-A — BBE LABEL

! 16 LC31139-001A-A GQ30032-001A-A RATING LABEL Not Interchangeable
! 100 LC10878-001C-A LC10878-001D-A FRONT CABINET ASS’Y ↑

103 LC31238-001A-A — OPERATION SHEET

(No. 51786) (No. 51786B)

COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.

No. 51786B

Jan. 2002

AV-27F702



PACKING PARTS LIST (Page 39)

Model No. & Parts No.

! Ref. No. AV-27F702/S AV-27F702/AS Parts Name Remarks

! 6 LCT0821-001B-A LCT0821-001D-A INST BOOK Not Interchangeable

8 BT-51020-1Q BT-51028-1Q REGISTRATION CARD ↑
9 BT-20071B-Q — SVC CENTER LIST



USING P. W. BOARD (Page 30)

PWB ASS’Y (No. 51786) (No. 51786B)

MAIN PWB SAC-1502A-M2 SAC-1545A-M2
DAF PWB SAC-2602A-M2 —
CRT SOCKET PWB SAC-3502A-M2 SAC-3515A-M2
FRONT PWB SAC-8503A-M2
POWER SW PWB SAC-8601A-M2
LF PWB SAC-9501A-M2
AV SW PWB SAC0S502A-M2

(No. 51786) (No. 51786B)

MODEL AV-27F702/S AV-27F702/AS



MAIN PWB ASS’Y PARTS LIST (Page 32 – 35)

! Symbol. No.

R1022 NRSA63J-331X NRSA63J-151X MG R 150Ø 1/16W J
R1440 NRSA63J-101X — MG R
R1441 NRSA63J-103X — MG R

! R1535 NRSA02D-242X NRSA02D-392X MF R 3.9kØ 1/10W ±0.5%

R1536 — NRSA02D-823X MF R 82kØ 1/10W ±0.5%
R1711 NRSA63J-0R0X — MG R
C1026 QETN1HM-106Z QETN1HM-474Z E CAP. 0.47µF 50V M
C1041 QETN1HM-474Z QETN1HM-106Z E CAP. 10µF 50V M

! C1510 QFZ0196-402 QFZ0196-532 MPP CAP. 5300pF 1.5kVH ±3%
! T1502 QQH0084-001 QQH0119-001 FBT
! L1521 QQLZ018-480 — HEATER CHOKE

D1010 — MTZJ9.1C-T2 ZENER DIODE
Q1440 2SC2412K/QR/-X — SI.TRANSISTOR
IC1701 MN1876478JL MN1876478JL1 I.C(MICRO-COMPO)
IC1702 AT24C04-27F802 AT24C04-F802Y I.C(MEMORY-OTH)
FR1526 — QRZ9013-R27 F R 0.27Ø 1/2W K



CRT SOCKET PWB ASS’Y PARTS LIST (Page 35 – 36)

! Symbol. No.

! SK3001 CE42670-001 QNZ0464-001 C.R.T.SOCKET

SAC-1502A-M2 SAC-1545A-M2

SAC-3502A-M2 SAC-3515A-M2

PWB No. & Parts No.

PWB No. & Parts No.

Parts Name Remarks

Parts Name Remarks

2 No. 51786B

 SPECIFIC SERVICE INSTRUCTION

System Constant Setting (Page 9)

Setting value

Setting item Setting content

AV-27F702

/S AV-27F702/AS

AV-27F702

CAN V-CHIP NO YES

YES NO

 SERVICE ADJUSTMENT

HOW TO CHECK THE HIGH VOLTAGE HOLD DOWN CIRCUIT (Page 27)

1. HIGH VOLTAGE HOLD DOWN CIRCUIT

After repairing the high voltage hold down circuit shown in Fig. 1.
This circuit shall be checked to operate correctly.

2. CHECKING OF THE HIGH VOLTAGE HOLD DOWN CIRCUIT

(1) Turn the POWER SW ON.
(2) As shown in Fig. 1, set the resistor (between S1 connector 2 & 3 ).
(3) Make sure that the screen picture disappears.
(4) Temporarily unplug the power cord.
(5) Remove the resistor (between S1 connector 2 & 3 ).
(6) Again plug the power cord, make sure that the normal picture is displayed on the screen.

AV-27F702

15.0 kØ ± 75 Ø 1/4 W

/AS

RY951

AV-27F702/S

20.3 kØ ± 101 Ø 1/4 W

POWER

ON OFF

R952

R532

D535

R951

R533

Q531

Q951

Q532

R534

+

C533

D534

RESISTOR

HEATER

D532
BW

D531

Fig. 1

23

R537 FR525

R535R538

S1 CONNECTOR

+

C525

D525

T502

4

No. 51786B 3

JVC SERVICE & ENGINEERING COMPANY OF AMERICA

DIVISION OF JVC AMERICAS CORP.

Head office :
East Coast :
Midwest :
West Coast : 5665 Corporate Avenue, Cypress, California 90630 [phone]
Southwest : 10700 Hammerly, Suite 105, Houston, Texas 77043 [phone]
Hawaii : 2969 Mapunapuna Place, Honolulu, Hawaii 96819 [phone]
Southeast : 1500 Lakes Parkway, Lawrenceville, Georgia 30243 [phone]

1700 Valley Road, Wayne, New Jersey 07470 [phone]
10 New Maple Avenue, Pine Brook, New Jersey 07058 [phone]
705 Enterprise St. Aurora, Illinois 60504

[phone]

JVC CANADA INC.

Head office : 21 Finchdene Square Scarborough, Ontario M1X 1A7 [phone]
Vancouver : 13040 Worster Court Richmond B.C. V6V 2B3 [phone]

®

27F702AS-UCM #4

Printed in Japan
VP0201
SW