JVC HR-XV38SAG Service Manual

SERVICE MANUAL

DVD PLAYER & VIDEO CASSETTE RECORDER

YD05520053

HR-XV38SAG

HR-XV38SAG [D5PV1]

For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700 (MECHANISM ASSEMBLY).
Regarding service information other than these sections, refer to the service manutal No. YD051 (HR-XV48EX).
Also, be sure to note iportant safety precautions provided in the service manual.

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

COPYRIGHT © 2005 Victor Company of Japan, Limited

No.YD055

2005/3

SPECIFICATION

GENERAL

Power requirement AC 110 V - 240 V, 50 Hz/60 Hz

Power consumption

Power on 23 W
Power off 4.5 W

Temperature

Operating 5°C to 40°C

Storage -20°C to 60°C

Operating position Horizontal only

Dimensions (W

Maximum recording time

VIDEO/AUDIO (VHS deck)

Recording system DA4 (Double Azimuth) head helical scan system

Signal-to-noise ratio 45 dB

Horizontal resolution 250 lines (PAL/MESECAM), 220 lines (NTSC)

Frequency range 70 Hz to 10,000 Hz (Normal audio) 20 Hz to 20,000 Hz (Hi-Fi audio)

VIDEO/AUDIO (DVD deck)

Audio characteristics DVD:4 Hz - 22 KHz

Frequency response CD:4 Hz - 20 KHz

Output

Component- PB /PR (RCA) 0.7 Vp-p/75 Ω

TUNER/TIMER(VHS deck)

TV channel storage capacity 99 positions (+AUX position)

Channel coverage VHF(low) : 42 MHz-175 MHz

Program capacity 1-year programmable timer / 8 programs

Memory backup time Approx. 10 min.

ACCESSORIES

Provided accessories RF cable, Infrared remote control unit, "R6" battery × 2

Specifications shown are for SP mode unless otherwise specified.
E.& O.E. Design and specifications subject to change without notice.
Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarks of Dolby Laboratories.
"DTS" and "DTS2.0+ Digital Out" are trademarks of Digital Theater Systems, Inc.
G-CODE is a trademark of Gemstar Development Corporation and is registered in the following countries: Australia, China, Hong
Kong, Japan, South Korea, New ealand, and Taiwan. SHOWVIEW is a trademark of Gemstar Development Corporation and is reg­istered in the following countries:Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Hungary, Iceland, Italy,
Luxembourg, Netherlands, Norway, Poland, Portugal, Russia, Slovakia, South Africa, Spain, Sweden and Switzerland. The G­CODE/SHOWVIEW system is manufactured under license from Gemstar Development Corporation.
G-CODE and SHOWVIEW are different trademarks used to represent the same easy recording feature. However, for simplicity,
only the term G-CODE will be used in the instructions. If you use SHOWVIEW system, follow the same steps listed for the G-CODE
system.

× H × D) 435 mm × 93 mm × 272 mm

Weight 4.2 Kg
Format VHS PAL/NTSC standard

(SP) 240 min. with E-240 video cassette(PAL/MESECAM)

(LP) 480 min. with E-240 video cassette(PAL/MESECAM)

(EP) 480 min. with T-160 video cassette(NTSC)

Signal system PAL-type colour signal and CCIR monochrome signal, 625 lines/50 fields

NTSC colour and EIA monochrome signal, 525 lines/60 fields.

Input/Output RCA connectors: IN

Signal system NTSC 3.58

Applicable disc DVD (12 cm, 8 cm), CD (12 cm, 8 cm)

S/N Ratio 90 dB

Wow and flutter Below Measurable Level

Dynamic range 90 dB

Component-Y (RCA) 1.0 Vp-p/75 Ω

Audio (RCA) 2 Vrms, 1 KΩ

Digital Audio -21 dBm to -15 dBm(peak)

Tuning system Frequency synthesized tuner

Aerial output UHF channels (Adjustable E28-E60)

160 min. with T-160 video cassette(NTSC)

× 2, OUT × 1

VHF(high) : 175 MHz-470 MHz

UHF : 470 MHz-870 MHz

1-2 (No.YD055)

SECTION 1

PRECAUTION

Please refer to "HR-XV48EX No.YD051" about this section.

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

Please refer to "HR-XV48EX No.YD051" about this section except a written item.

2.1 DIFFERENT TABLE OF FEATURE

The following table indicates main different points between models HR-XV48EX and HR-XV38SAG.

MODEL NAME HR-XV48EX HR-XV38SAG

POWER VOLTAGE 220-240V, 50/60Hz 110-240V, 50/60Hz

POWER SAVE DISPLAY OFF,MENU NOT USED

HEAD CLEANER NOT USED USED

CONNECTOR AND BUTTON COVER NOT USED USED

SHUTTLE SEARCH(LATCH)-NTSC NOT USED SPx7, EPx21

VIDEO SYSTEM(VHS) PAL/MESECAM(MANUAL)/NTSC PB on

PAL TV with HiFi

SQPB PAL(SP/LP) PAL(SP)/NTSC(SP)

RECORDING & PLAYBACK SPEED SP,LP PAL:SP,LP/NTSC:SP,EP

REAR L-1 INPUT SCART IN/OUT(RGB) PIN JACK

REAR L-2 INPUT SCART(DECODER) NOT USED

AV OUTPUT AUDIO(L/R) VIDEO,AUDIO(L/R)

COMPORNENT VIDEO OUTPUT NOT USED DVD:Y/Pb/Pr

DVD AUDIO OUT NOT USED AUDIO (L/R)

DVD VIDEO OUT NOT USED S-OUTPUT

BROADCASTING STANDARD B/G,D/K B/G,D/K,I

STEREO DECODER NICAM/A2 A2(B,G),NICAM(I,B,G,D,K)

RF OUT CH/RF OUT SYSTEM[INITIAL] 22-69CH,OFF[AUTO]/G,K 28-60[36]CH,[G],H,K,I

AUTO CLOCK / JUST CLOCK USED NOT USED

VCR PLUS+ SHOWVIEW G-CODE/SHOWVIEW

AUTO GUIDE CH SET USED NOT USED

REC LINK / INPUT YES/L-2 YES/L-1

VPS/PDC USED NOT USED

OSD LANGUAGE [VHS] 13 LANGUAGES ENGLISH/RUSSIAN/ARABIC

OSD LANGUAGE [DVD] ENGLISH/FRENCH/GERMANY ENGLISH/CHINESE/SPANISH

T-V LINK USED NOT USED

DVD PROGRESSIVE NOT USED USED

DVD X1.5 SPEED PLAYBACK USED NOT USED

DivX USED NOT USED

REGIONAL CODE REGIONAL CODE : 2 REGIONAL CODE : 3

PAL/MESECAM/NTSC3.58/4.43/NTSC PB

on PAL TV with HiFi

(No.YD055)1-3

SECTION 3

DISASSEMBLY

Please refer to "HR-XV48EX No.YD051" about this section.

SECTION 4

ADJUSTMENT

Please refer to "HR-XV48EX No.YD051" about this section except a written item.

4.1 Electrical adjustment [VHS SECTION]

Adjustment procedure are changed.

4.1.1 Servo circuit

4.1.1.1 Slow tracking preset

Signal (A1)

Mode (B1)

Measuring point (D) TV-Monitor
Adjustment part (F) Jig RCU: Code "43-71" or "43-72"
Specified value (G) minimum noise
Adjustment tool (H) Jig RCU [PTU94023B]

(1) Record the signal (A2) in the mode (B1), and play back the

recorded signal.
(2) Set the VCR to the manual tracking mode.
(3) Set the VCR to the FWD slow (+1/6x) mode.
(4) Transmit the code (F) from the Jig RCU to adjust so that the

noise bar becomes the specified value (G) on the TV mon-

itor in the slow mode.
(5) Set the VCR to the stop mode.
(6) Confirm that the noise bar is (G) on the TV monitor in the

slow mode.
(7) Repeat steps (1) to (6) in the mode (B2).
(8) Record the signal (A3) in the mode (B1), and play back the

recorded signal.
(9) Repeat steps (2) to (6)

(10) Repeat steps (8) and (9) in the mode (B2).

Note:

For FWD slow (+1/6x) playback, transmit the code "43-08"
from the Jig RCU to enter the slow playback mode.

Ext. input

(A2)

Color (colour) bar signal [PAL]

(A3)

Color (colour) bar signal [NTSC]
VHS SP

(B2)

VHS LP (or EP)

1-4 (No.YD055)

4.2 Electrical adjustment (DVD SECTION)

r

4.2.1 Test mode setting method

(1) Press POWER button to turn off the unit.

(2) Press the following remocon keys continuously within 2seconds " SET UP " → " 2 " → " 8 " → " ENTER ".

(3) The unit becomes JIG RCU mode.
(4) Press POWER button then press VCR/DVD repeatedly so that the DVD indicator lights up.
(5) Press the POWER button again to turn off the unit.
(6) Transmit the code " 43-FA " from the Jig RCU.
(7) The power supply of the unit turns on automatically then the FDP shows the region number.
(8) Each pressing of DISPLAY button of the remote controller in test mode as follows.
(9) To release test mode, press POWER key of the front panel.

FDP(Example)

Becames test mode

VCR

(Region number)

Optimize Front End paramete

4.2.2 Method of displayed version of firmware

(1) Set the unit to the test mode.
(2) The version number is displayed in the monitor screen.

OPENING DISPLAY

**_Ver.****_HS/HR_XVC26/*******

Version of firmware

Destination

CD Laser

DVD Laser

Others

Model name

(No.YD055)1-5

4.2.3 Initialization method

Please initialize according to the following procedures in the following case:

• Just after you upgrade the firmware.

• After you confirm the symptoms that a customer points out. First Initialize, and then confirm whether the symptoms are improved or
not.

• After servicing, before returning the main body to a customer. (Initialized unit should be returned to a customer.)
(1) Set the unit to the test mode.
(2) Press PAUSE key of the remote controller or transmit the code "43-6F" from the Jig RCU.
(3) When initialization is completed, the PLAY (). mark is indicated in the FDP.

4.2.4 All-initialization method

Please perform all-initialization according to the following procedures in the following case:

• Just after you exchange the pick-up.

• Just after you exchange the spindle motor.

• Just after you exchange the traverse mechanism base.

NOTE:

Please perform all-initialization when you exchange the parts above and also when you remove the parts above.
(1) Set the unit to the test mode.
(2) Press the REVERSE SKIP/INDEX () key of the remote controller for more than 2 seconds.
(3) When initialization is completed, the PLAY (). mark is indicated in the FDP.

NOTE:

After all-initialization, be sure to perform optimization adjustment of Front End parameter.

4.2.5 Optimization adjustment of Front End parameter

Adjustment to optimize Front End parameter must be performed in each mechanism assembly of this model for high-speed start­ing.Please perform optimization according to the following procedures just after all-initialization is completed and when FDP shows
anything except "0" (For example when FDP shows "1", "2", and "3") at test mode.

(1) Set the unit to the test mode.
(2) The FDP shows the region number first.
(3) Press the DISPLAY key of the remote controller and check that FDP shows the number.
(4) Press the DISPLAY key again to return the region number.

NOTE:

Status of this adjustment can be judged by the number displayed at test mode as follows:

DVD adjustment CD adjustment FDP at test mode

Adjusted Adjusted 0

Not adjusted Adjusted 1

Adjusted Not adjusted 2

Not adjusted Not adjusted 3

NOTE:

As for a disc used for adjustment,

• Disc should be mounted. ("Mounting" means to display "READ" after the disc is inserted and then display the disc informa­tion.) Disc need not be played.

• If you do not have test disc either VT-501 (DVD) or CTS-1000 (CD-DA), use a commercial disc (for DVD, dual-layer soft­ware) after seeing and checking that the disc is neither curved nor foreseen that it may shake at the time of playback.If you
use a disc with bad features, starting time may be slow or disc may not be read.

1-6 (No.YD055)

4.2.6 Upgrading of firmware

• Firmware update disc supports CD-R media.

• When firmware update is necessary, information is available from the homepage of DIGITAL VIDEO STORAGE CATEGORY, CS
group.

4.2.6.1 Creating an update disc

Please check the details of the update disc creation method by JS-NET.

(1) Down load the update file from JS-NET.
(2) Write the update file into CD-R. Pay attention in the following points when writing the update disc.

• Make sure to write in "Disc at Once".

• Set the file compatibility to "ISO9660 format".

4.2.6.2 Update procedure

(1) Turn the power ON. Load the update disc on the tray and close the tray.
(2) Update of the firmware starts automatically then upgrading status is displayed in the monitor screen.
(3) The tray opens automatically. Remove the upgrade disc.
(4) Close the tray then press the POWER button to turn off the unit.
(5) Confirm the version of the firmware.in the test mode.

MONITOR(Example)

VERSION UP DISC
PROGRAM&DESTINATION MODE
CURRENT VERSION 0434
NEW VERSION 4351

READING....

SECTOR

**

NUMBER
KEYS

SET UP

REVERSE
SKIP/INDEX

ENTER

DISPLAY

PAU SE

(No.YD055)1-7

SECTION 5

TROUBLESHOOTING

Please refer to "HR-XV48EX No.YD051" about this section.

1-8 (No.YD055)

Victor Company of Japan, Limited
AV & MULTIMEDIA COMPANY DIGITAL VIDEO STORAGE CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan

(No.YD055)

Printed in Japan

VPT