Pioneer HTZ-121DVD, DCS-222K Service manual

ORDER NO.

PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan

PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION

2012

RRV4299

HTZ-121DVD

DVD SURROUND SYSTEM

HTZ-121DVD

DCS-222K

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Model Type Power Requirement

HTZ-121DVD LXE AC 110 V to 240 V 3 &&TL######LE LE:Asean

HTZ-121DVD TWXE AC 220 V 3 &&TL######TL TL:Thailand

DCS-222K YXE8 AC 220 V to 240 V 2 &&TL######YY YY:Europe

DVD

Region No.

Serial No. Remarks

K-FZV APR.

2012 Printed in Japan

LABEL CHECK

Laser Pickup specifications and Laser characteristics

For DVD Wave length : 650 - 662 nm Output Power : Less than Class 1

For CD Wave length : 785 - 795 nm Output Power : Less than Class 1

The following caution appears on your unit. Location: inside of the unit

This service manual is intended for qualified service technicians; it is not meant for the casual do-it- yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.

HTZ-121DVD/LXE, HTZ-121DVD/TWXE

(Printed on the Rear Panel)

DCS-222K/YXE8

2 3 4

SAFETY INFORMATION

2 3 4

HTZ-121DVD

6 7 8

SAFETY INFORMATION..........................................................................................................................................................2

1. SERVICE PRECAUTIONS.................................................................................................................................................... 4

1.1 NOTES ON SOLDERING ...............................................................................................................................................4

2. SPECIFICATIONS................................................................................................................................................................. 5

2.1 ACCESSORIES.............................................................................................................................................................. 5

2.2 SPECIFICATIONS ..........................................................................................................................................................6

2.3 TYPES OF DISCS/FILES THAT CAN BE PLAYED........................................................................................................ 7

3. BASIC ITEMS FOR SERVICE ............................................................................................................................................11

3.1 CHECK POINTS AFTER SERVICING ......................................................................................................................... 11

3.2 PCB LOCATIONS.........................................................................................................................................................12

3.3 JIGS LIST .....................................................................................................................................................................13

4. BLOCK DIAGRAM .............................................................................................................................................................. 14

4.1 OVERALL CONNECTION DIAGRAM........................................................................................................................... 14

4.2 BLOCK DIAGRAM........................................................................................................................................................ 16

5. DIAGNOSIS ........................................................................................................................................................................ 18

5.1 DIAGNOSIS FLOWCHART .......................................................................................................................................... 18

6. SERVICE MODE................................................................................................................................................................. 27

7. DISASSEMBLY ................................................................................................................................................................... 29

8. EACH SETTING AND ADJUSTMENT ................................................................................................................................ 36

8.1 FIRMWARE UPDATE ................................................................................................................................................... 36

8.2 PROCEDURES FOR CHANGING THE DESTINATION SETTING AFTER THE MAIN BOARD IS REPLACED......... 38

9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................... 40

9.1 PACKING SECTION ..................................................................................................................................................... 40

9.2 EXTERIOR SECTION .................................................................................................................................................. 42

9.3 SATELLITE SPEAKER and SUBWOOFER SECTION................................................................................................. 44

10. SCHEMATIC DIAGRAM.................................................................................................................................................... 46

10.1 MAIN BOARD ASSY (1/6) : POWER SOURCE (Sheet No.3)....................................................................................46

10.2 MAIN BOARD ASSY (2/6) : MT1389FE/G AND SERVO (Sheet No.4) ...................................................................... 48

10.3 MAIN BOARD ASSY (3/6) : SDRAM AND FLASH (Sheet No.5)................................................................................ 50

10.4 MAIN BOARD ASSY (4/6) : VIDEO/AUDIO OUTPUT (Sheet No.6)...........................................................................52

10.5 MAIN BOARD ASSY (5/6) : AUDIO INPUT (Sheet No.7)...........................................................................................54

10.6 MAIN BOARD ASSY (6/6) : MCU (Sheet No.8)..........................................................................................................56

10.7 FRONT BOARD ASSY............................................................................................................................................... 58

10.8 KARAOKE BOARD ASSY .......................................................................................................................................... 60

10.9 AMP BOARD ASSY (1/2) : AMP IC ............................................................................................................................ 62

10.10 AMP BOARD ASSY (2/2) : DSP ............................................................................................................................... 64

10.11 POWER BOARD ASSY ............................................................................................................................................66

11. PCB CONNECTION DIAGRAM........................................................................................................................................ 68

11.1 MAIN BOARD ASSY .................................................................................................................................................. 68

11.2 FRONT BOARD ASSY and KARAOKE BOARD ASSY..............................................................................................72

11.3 AMP BOARD ASSY....................................................................................................................................................76

11.4 POWER BOARD ASSY .............................................................................................................................................. 80

12. PCB PARTS LIST..............................................................................................................................................................84

HTZ-121DVD

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• For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit. Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs accompanied by reworking of soldering.

• Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 ºC. Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 ºC in general, although the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of the soldering iron.

Do NOT use a soldering iron whose tip temperature cannot be controlled.

Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden).

The following lead-free solders are available as service parts:

• Parts numbers of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia.

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1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

2 3 4

HTZ-121DVD

• Operating instructions

VIDEO cable (41-UH1200-0KK1A)

Remote Control Unit (06-AX7653-A000 : HTZ-121DVD/LXE, HTZ-121DVD/TWXE) (06-AX7652-A000 : DCS-222K/YXE8)

AAA/R03 dry cell batteries x2

FM Antenna (47-ANT022-XX0)

AC Power cord (51-DC0120-0CRA3 : HTZ-121DVD/LXE, DCS-222K/YXE8) (51-D50120-0CR03 : HTZ-121DVD/TWXE)

(HTZ-121DVD/LXE : 72-HTZ121-AS0B2) (HTZ-121DVD/TWXE : 72-HTZ121-THAB1) (DCS-222K/YXE8 : 72-DCS222-EU0B2)

• Warranty card (DCS-222K/YXE8)

Screws M4x12 [Taping type] x5

Non-skid pads x5

ACCESSORIES (SPEAKER ASSY)

2. SPECIFICATIONS

2.1 ACCESSORIES

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HTZ-121DVD

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General

• Power requirements: AC 110 V to 240 V, 50 Hz/60 Hz (HTZ-121DVD/LXE) AC 220 V, 50 Hz/60 Hz (HTZ-121DVD/TWXE) AC 220 V to 240 V, 50 Hz/60 Hz (DCS-222K/YXE8)

• Power consumption: 45 W In Standby mode: Less than 0.5 W

• Dimensions (W x H x D): 360 mm x 64 mm x 351 mm

• Net Weight (Approx.): 2.6 kg

• Operating temperature: 5 °C to 35 °C

• Operating humidity: 5 % to 85 %

• Bus Power supply (USB): DC 5 V

500 mA

Inputs/Outputs

• VIDEO OUTPUT:

1.0 V (p -p), 75

sync negative, RCA jack x 1

• COMPONENT VIDEO OUT: (HTZ-121DVD) (Y) 1.0 V (p-p), 75 sync negative, RCA jack x 1, (Pb)/(Pr) 0.7 V (p-p), 75 RCA jack x 2

• HDMI OUT (video/audio):

• SCART OUTPUT (video) : 21pin (DCS-222K)

19 pin (HDMI standard, Type A)

• PORTABLE IN:

0.5 Vrms (3.5 mm stereo jack)

• MIC INPUT: Mic jack

• USB: 4 pin A Type

Tuner

Amprifier

• FM Tuning Range:

87.5 MHz to 108.0 MHz

• Power output, (RMS), THD 30 % Front 38 W x 2 (4 Centre 75 W (8

Surround 38 W x 2 (4 Sub-Woofer 75 W (8 Passive)

System

• Laser:Semiconductor laser

• Signal system: Standard PAL/NTSC colour TV system

Speakers

• Front/Surround speaker (Left/Right) Type: 1 Way Impedance Rated:

4 Net Dimensions (W x H x D):

mm x 80 mm x 90 mm

Net Weight: 0.33 kg

• Centre speaker Type: 1 Way Impedance Rated:

Net Dimensions (W x H x D): 95 mm x 80 mm x 90 mm Net Weight: 0.36 kg

• Subwoofer Type: 1 Way Impedance Rated:

Net Dimensions (W x H x D):

200 mm x 340 mm x 270 mm

Net Weight: 3.4 kg

2.2 SPECIFICATIONS

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HTZ-121DVD

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DVD-Video

• DVD-Video discs

Playable Discs

• DVD-R/-RW/-R DL and DVD+R/+RW/+R DL discs recorded in the Video mode

DVD VR

DVD-R/-RW/-R DL discs recorded in the VR mode

Video CD

Video CDs (including Super VCDs)

CD(R/RW)

• Audio CDs

• CD-R/-RW/-ROM discs

containing music recorded in the CD-DA format

JPEG

JPEG files recorded on DVD-R/-RW/-R DL discs, CD-R/-RW/-ROM discs

DivX

DivX video files recorded on DVD-R/-RW/-R DL discs, CD-R/-RW/-ROM discs

WMA

WMA files recorded on DVD-R/-RW/-R DL discs, CD-R/-RW/-ROM discs

MP3

MP3 files recorded on DVD-R/-RW/-R DL discs, CD-R/-RW/-ROM discs

can be played.

• This unit is not compatible to CPRM.

• Only the discs that have been finalized

Discs that cannot be played

• Blu-ray discs

• HD DVDs

• AVCHD

• AVCREC

• DVD-Audio discs

• DVD-RAM discs

• SACDs

• CD-G

• Discs recorded with packet writing

• Programs that can be recorded only once and that are (already) recorded on a DVD-R/-RW/-R DL

Regional Codes

This unit has a regional code printed on the rear of the unit. This unit can play only DVD discs labeled same as the rear of the unit or “All”.

• Most DVD discs have a globe with one or more numbers in it clearly visible on the cover. This number must match your unit’s regional code; or the disc cannot play.

• If you try to paly a DVD with a defferent regional code from your unit, the message “Incompatible disc region number Can’t play disc” appears on the TV screen.

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2.3 TYPES OF DISCS/FILES THAT CAN BE PLAYED

HTZ-121DVD

6 7 8

• Only discs recorded in ISO9660 Level1, Level 2 and Joliet can be played.

• Files protected by DRM (Digital Rights Management) cannot be played.

• Files other than the ones below (WMV, MPEG4-AAC, etc.) are not guaranteed to play.

DivX

Extension: .divx .avi Resolution: up to 720 x 480

• DivX is a media technology created by DivX, Inc. DivX media files contain image data.

• DivX files may also include such

advanced playback functions as menu screens and selection of multiple subtitle languages/audio tracks.

• Files not

containing DivX video signals cannot be played, even if they have the extension “.avi”.

• The font sets listed below are available for external subtitle files.

• This player supports the following language groups:

Group 1 Afrikaans (af), Basque (eu), Catalan (ca),

Danish (da), Dutch (nl), English (en), Faroese (fo), Finnish (fi), French (fr), German (de), Icelandic (is), Irish (ga), Italian (it), Norwegian (no), Portuguese (pt), Rhaeto-Romanic (rm), Scottish (gd), Spanish (es), Swedish (sv)

Group 2 Albanian (sq), Croatian (hr), Czech (cs),

Hungarian (hu), Polish (pl), Romanian (ro), Slovak (sk), Slovenian (sl)

Group 3 Bulgarian (bg), Byelorussian (be), Macedonian

(mk),Russian (ru), Serbian (sr), Ukrainian (uk)

Group 4 Hebrew (iw), Yiddish (ji)

Group 5 Turkish (tr)

• Some external subtitle files may be displayed incorrectly or not at all.

• For external subtitle files the following

subtitle format filename extensions are supported (please note that these files are not shown within the disc navigation

menu): .srt, .sub, .ssa, .smi

• The filename of the movie file has to be repeated at the beginning of the filename for the external subtitle file.

• The number of external subtitle files which can be switched for the same movie file is limited to a maximum of 10.

Playable files

Supported video file formats

Displaying external subtitle files

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HTZ-121DVD

JPEG

Extension: .jpg .jpeg

• Resolution: Up to 3 072 x 2 048 pixels

• This player supports baseline JPEG.

• This player supports Exif Ver.2.2.

• This player does not support VBR (Variable Bit Rate) and lossless encoding.

Windows Media™ Audio (WMA)

Extension: .wma

• Sampling frequencies: 32 kHz, 44.1 kHz and 48 kHz

• Bit rate: Up to 192 kbps

• This player supports files encoded using Windows Media Player Ver. 7/7.1, Windows Media Player for Windows XP and

Windows Media Player 9 Series.

• Windows Media is either a registered trademark or trademark of Microsoft Corporation in the United States and/or other countries.

• This product includes technology owned by Microsoft Corporation and cannot be used or distributed without a license from Microsoft Licensing, Inc.

MPEG-1 Audio Layer 3 (MP3)

Extension: .mp3

• Sampling

frequencies: 32 kHz, 44.1 kHz

and 48 kHz

• Bit-rates: 128 kbps or higher recommended

• This Player supports ID3 tag Ver1.1.

Compatible USB Devices

• MP3 Player : Flash type MP3 player.

• USB Flash Drive : Devices that support USB 2.0 or USB 1.1.

• The USB function of this unit does not support some USB devices.

USB device requirement

• Devices which require additional program installation connected to a computer, are not supported.

• Do not extract the USB device while in operation.

• For a large capacity USB, it may take longer than a few minute to be searched.

• To prevent data loss, back up all data.

• If you use a USB extension cable or USB hub, the USB device is not recognized.

• Using

NTFS file system is not supported. (Only FAT(16/32) file system is supported.)

• This unit is not supported when the total number of files is 600 or more.

• External HDD, Card readers, Locked devices, or hard type USB devices are not guaranteed to support.

• USB port of the unit cannot be connected to PC. The unit can not be used as a storage device.

• Some copyright-protected files cannot be played.

• The

maximum d

isplayable number of characters for the folder and file names on the Disc Navigator is 14.

• The order of the folder and file names displayed on the Disc Navigator is dependant on the time and date when the folders or files were created on the USB device.

Supported image file formats

Supported audio file formats

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HTZ-121DVD

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HDMI, the HDMI Logo, and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.

is a trademark of DVD Format/Logo

Licensing Corporation.

Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic”, and the double-D symbol are trademarks of Dolby Laboratories.

DivX®, DivX Certified® and associated logos

are trademarks of Rovi Corporation or its subsidiaries and are used under license.

This product includes technology owned by Microsoft Corporation and cannot be used or distributed without a license from Microsoft Licensing, Inc.

Trademarks and Licences

2 3 4

HTZ-121DVD

Item to be checked regarding video Item to be checked regarding audio

Block noise Distortion

Horizontal noise Noise

Dot noise Volume too low

Disturbed image (video jumpiness) Volume too high

Too dark Volume fluctuating

Too bright Sound interrupted

Color disappearance

Mottled color

No. Procedures Check points

Confirm the firmware version on Test Mode. The version of the firmware must be latest.

Update firmware to the latest one, if it is not the latest.

Confirm whether the customer complain has been solved. If the customer complain occurs with the specific disc, use it for the operation check.

The customer complain must not be reappeared. Video, audio and operations must be normal.

Play back a CD. (track search)

Audio and operations must be normal.

Play back a DVD. (Menu operation, Title/chapter search)

Video, audio and operations must be normal.

Check the appearance of the product. No scratches or dirt on its appearance after receiving it for

service.

Check the tuner (FM) operations. Audio and operations (station search etc.) must be normal.

To keep the product quality after servicing, confirm recommended check points shown below.

See the table below for the items to be checked regarding video and audio.

Cleaning

Be sure to clean the following positions by using the prescribed cleaning tools shown below as occasion demands.

Refer to “7. DISASSEMBLY”.

NamePosition to be cleaned Part No. Remarks

Cleaning liquidPickup leneses GEM1004

Cleaning paper GED-008

Note If checking audio output of the unit without an original speaker, please order GGP1199 (Speaker cable jig). It is possible to connect a normal speaker to the unit by using GGP1199.

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3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

HTZ-121DVD

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NOTES: - Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.

The > mark found on some component parts indicates the importance of the safety factor of the part.

Therefore, when replacing, be sure to use parts of identical designation.

POWER BOARD ASSY

FRONT BOARD ASSYKARAOKE BOARD ASSY

MAIN BOARD ASSY

AMP BOARD ASSY

D E

Loader ASSY

3.2 PCB LOCATIONS

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Mark No. Description Part No.

LIST OF ASSEMBLIES

1..MAIN BOARD ASSY (HTZ-121DVD/LXE) 08-HTZ121-MA0

1..MAIN BOARD ASSY (HTZ-121DVD/TWXE) 08-H89GAU-MA1R

1..MAIN BOARD ASSY (DCS-222K/YXE8) 08-DCS222-MA0

1..FRONT BOARD ASSY 08-DCS222-FB0

1..KARAOKE BOARD ASSY 08-DCS222-KU0

1..AMP BOARD ASSY 08-DCS222-AM0

(HTZ-121DVD/LXE, DCS-222K/YXE8)

1..AMP BOARD ASSY(HTZ-121DVD/TWXE) 08-S301B6-AM1

HTZ-121DVD

2 3 4

Mark No. Description Part No.

> 1..POWER BOARD ASSY 08-DCS222-PW0

(HTZ-121DVD/LXE, DCS-222K/YXE8)

> 1..POWER BOARD ASSY (HTZ-121DVD/TWXE) 08-P075HE-PW1

1..Loader ASSY 08-LT3CMP-242230

DVD Test Disc (DVD-Video,NTSC)

DVD Test Disc (DVD-Video,PAL)

Name Jig No. Remarks

Diagnosis

GGV1025

DVD Test Disc (DVD-Video,NTSC) Diagnosis

GGV1025

Service Remote Control Unit Service Mode

GGF1381

GGV1101

CD Test Disc

Diagnosis

STD-905

Speaker cable for AMP output check

AMP Check

GGP1199

3.3 JIGS LIST

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HTZ-121DVD

6 7 8

XP3

XP12

XP4

XP2

XP3

PICK UP

TRAVERS

TRAY

6PIN HARNESS CABLE

24PIN FFC CABLE

5PIN HARNESS CABLE

XP5

XS604

4PIN HARNESS CABLE

USB

FRONT BOARD ASSY (08-

1/6 -A6/6

( )

MAIN BOARD ASSY (HTZ-121DVD/LXE : 08-HTZ121-MA0) (HTZ-121DVD/TWXE : 08-H89GAU-MA1R) (DCS-222K/YXE8 : 08-DCS222-MA0)

LOADER ASSY

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4. BLOCK DIAGRAM

4.1 OVERALL CONNECTION DIAGRAM

HTZ-121DVD

2 3 4

XP502

XP11

XP1 XP501

XP701

XS606

XS1

XS703

8PIN HARNESS CABLE

24PIN FFC CABLE

4PIN HARNESS CABLE

3PIN HARNESS CABLE

When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.

POWER BOARD ASSY (HTZ-121DVD/LXE, DCS-222K/YXE8 : 08-DCS222-PW0) (HTZ-121DVD/TWXE : 08-P075HE-PW1)

ASSY (08-DCS222-FB0)

KARAOKE BOARD ASSY (08-DCS222-KU0)

1/2 -D2/2

( )

AMP BOARD ASSY (HTZ-121DVD/LXE, DCS-222K/YXE8 : 08-DCS222-AM0) (HTZ-121DVD/TWXE : 08-S301B6-AM1)

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HTZ-121DVD

FRONT BOARD ASSY

KARAOKE BOARD ASSY

MAIN BOARD ASSY

4.2 BLOCK DIAGRAM

2 3 4

HTZ-121DVD

(HTZ-121DVD)

(DCS-222K)

POWER BOARD ASSY

AMP BOARD ASSY

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HTZ-121DVD

6 7 8

Yes

No display on VFD, and buttons do not work

Check every supply

voltage on MAIN BOARD ASSY

is normal

Check the connect line is OK

Correct connection

Replace K135, K136,

K137,K138,K139,K140

Check the FRONT BOARD

ASSY signals VSCLK,VSDA,VSTB

(XP3:pin10,pin11,pin12)

Check whether the circuit

connected to K135,K136,K137,

K138,K139,K140 are broken.

Check Q2,Q3,Q4 is

fixed on MAIN BOARD ASSY

Yes

Replace MAIN BOARD ASSY

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5. DIAGNOSIS

5.1 DIAGNOSIS FLOWCHART

1) No display on VFD, and buttons do not work

2 3 4

HTZ-121DVD

Yes

Remote control does not work

Replace the battery for remote

controller

Check whether the remote

controller’s battery is

exhausted or not

Check the IR601(HT68F50)

power supply is OK,

IR601 : pin3 is about 3.3V

Check the VCC line(net) on FRONT BOARD ASSY

Replace FRONT BOARD ASSY

2) Remote control does not work

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HTZ-121DVD

6 7 8

No audio output

Yes

Replace AMP BOARD ASSY

Replace U182 on MAIN BOARD ASSY,

or replace MAIN BOARD ASSY

Yes

Refer to CN502 on

POWER BOARD ASSY

Check the voltage +33V

Check the 24pin FFC connection

XP11 on MAIN BOARD ASSY and XP701

on AMP BOARD ASSY whether right or not

between MAIN BOARD ASSY

and AMP BOARD ASSY

Check the control signal at U182 :

pin10 and pin11 on MAIN BOARD ASSY

and the signal at XP11 : pin9 and

pin10 whether right or not

Check the voltage 3.3V at XP11 :

pin14 and pin16 on MAIN BOARD ASSY

whether normal or not

at XS703 on AMP BOARD ASSY

3) No audio output

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HTZ-121DVD

2 3 4

No video output

Replace L7 on MAIN BOARD ASSY

Yes

Replace MAIN BOARD ASSY

Check L7 on MAIN BOARD ASSY

whether right

Check the video signal

at U20 : pin98 on MAIN BOARD

ASSY whether right

Can’t read disc or can’t open the disc door

Check XP3 on MAIN BOARD ASSY

Fix XP2(24pin), XP4(6pin) and XP3(5pin) cable

Replace Loader

Check the loader whether

work normally or not

Check the

XP2(24pin), XP4(6pin) and

XP3(5pin) cable from MAIN BOARD

ASSY to Loader whether

connect right or not

Yes

4) No video output

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5) Can’t read disc or can’t open the disc door

HTZ-121DVD

6 7 8

Tuner FM does not work

Refer to CN502 on POWER BOARD ASSY

Check the tuner power supply circuit on MAIN BOARD ASSY

Change Tuner Module

Replace MAIN BOARD ASSY

Check the U182 power supply circuit on MAIN BOARD ASSY

Check the voltage +3.3V

at Tuner Module (TUN1 : pin5)

whether right or not

Check the Tuner Module

(pin3,pin4 : I2C intput) whether

normal or not

Check the

voltage at Q16 : +3.3V on

MAIN BOARD ASSY whether

normal or not

Check the U182 (pin35,

pin36 : I2C output) on MAIN BOARD

ASSY whether normal or not

Yes

6) Tuner FM does not work

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HTZ-121DVD

AUX in does not work

Check R436 and C270

Replace MAIN BOARD ASSY

Check the U33(74HC4052) whether

broken or not

Check the voltage at

U33(74HC4052) : pin16(MO_VCC)

on MAIN BOARD ASSY whether

normal or not

Check the R341,R342,

C160 and C162 on MAIN BOARD ASSY

whether normal or not

Yes

Yes Yes

Replace MAIN BOARD ASSY

7) AUX in does not work

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HTZ-121DVD

6 7 8

Portable IN does not work

Refer to XP12 on MAIN BOARD ASSY

Check R457,R340,C169 and C170 on MAIN BOARD ASSY

Replace MAIN BOARD ASSY

Check U20 on MAIN BOARD ASSY

Check the Q4 power supply and out circuit on MAIN BOARD ASSY

Check the signal

at JACK602 : pin3(MP3_R),

pin2(MP3_L) on FRONT BOARD

ASSY whether normal

or not

Check the U33

(74HC4052) : pin4, pin11 (L/R

signal input) on MAIN BOARD ASSY

whether right or not

Check the U33(74HC4052)

whether broken or not

Check the voltage at

U33(74HC4052) : pin16(MO_VCC)

on MAIN BOARD ASSY whether

normal or not

Yes

8) Portable IN does not work

2 3 4

HTZ-121DVD

Refer to XP12 on MAIN BOARD ASSY

Check R458,R459,C168 and C176 on MAIN BOARD ASSY

Replace MAIN BOARD ASSY

Check U20 on MAIN BOARD ASSY

Check the Q4 power supply and out circuit on MAIN BOARD ASSY

Check the signal

at P462 and P461 : pin1 on

KARAOKE BOARD ASSY

whether normal

or not

Check the U33(74HC4052)

: pin2, pin15 (L/R signal input) on

MAIN BOARD ASSY whether

right or not

Check the U33(74HC4052) whether

broken or not

Check the voltage at

U33(74HC4052) : pin16(MO_VCC)

on MAIN BOARD ASSY whether

normal or not

KARAOKE IN does not work

Yes

9) KARAOKE IN does not work

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HTZ-121DVD

6 7 8

HDMI does not output

Replace P3

Replace MAIN BOARD ASSY

Check the signal at P3 on MAIN

BOARD ASSY whether

normal or not

Check the voltage at P3 : pin18

(HDMI_VCC) whether right or not

Replace FB15

Yes

10) HDMI does not output

2 3 4

HTZ-121DVD

+ 58 hidden pages

Pioneer HTZ-121DVD, DCS-222K Service manual

SAFETY INFORMATION

CONTENTS

1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

2. SPECIFICATIONS

2.1 ACCESSORIES

2.2 SPECIFICATIONS

2.3 TYPES OF DISCS/FILES THAT CAN BE PLAYED

3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

3.2 PCB LOCATIONS

3.3 JIGS LIST

4. BLOCK DIAGRAM

4.1 OVERALL CONNECTION DIAGRAM

4.2 BLOCK DIAGRAM

5. DIAGNOSIS

5.1 DIAGNOSIS FLOWCHART