Panasonic SAVK-460-GC, SAVK-460-GCS, SAVK-460-GS, SAVK-460-GCT Service manual

DVD Stereo System

SA-VK460GC SA-VK460GS SA-VK460GCS SA-VK460GCT

Colour (S)... Silver Type

ORDER NO. MD0707001CE

Notes: This model’s DVD/CD mechanism changer unit is CRS1D. Please refer to the original service manual (Order No. MD0603065A3) for this mechanism.

Specifications

Q AMPLIFIER SECTION

RMS Output Power Stereo mode: Front Ch (both ch driven)

115 W per channel (3 Ω), 1 kHz, 10% THD Total RMS Stereo mode power 230 W PMPO output power 2500 W

Q FM/AM TUNER, TERMINALS SECTION

Preset station FM 20 stations

AM 15 stations Frequency Modulation (FM) Frequency range 87.50 to 108.00 MHz (50 kHz

step) Sensitivity 2.5 µV (IHF) S/N 26dB 1.3 µV Antenna terminals 75 Ω (unbalanced) Amplitude Modulation (AM) Frequency range 522 to 1629 kHz (9 kHz step)

520 to 1630 kHz (10 kHz step)

AM Sensitivity S/N 20dB at 999 kHz

505 µV/m Digital audio output Coaxial digital output Pin jack Music Port Input Jack Sensitivity 100 mV, 4.7 kΩ

Terminal Stereo, 3.5 mm jack Phone jack Terminal Stereo, 3.5 mm jack Mic jack Sensitivity 0.7 mV, 600 Ω Terminal Mono, 6.3 mm jack (1 system)

Q CASSETTE DECK SECTION

Type 1way,Autoreverse Track system 4 Track, 2 Channel Heads Record/playback Solid permalloy head Erasure Double gap ferrite head Motor DC servo moto Recording system AC bias 100 kHz Erasing system AC erase 100 kHz Tape speed 4.8 cm/s Overall frequency response (+3, -6 dB) at DECK OUT Normal 35 Hz to 14 kHz S/N ratio 50 dB (A-Weighted) Wow and flutter 0.18 % (WRMS) Fast forward and rewind time Approx. 120 seconds with

C-60 cassette tape

Q VIDEO SECTION

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

Video system PAL625/50, PAL525/60, NTSC Composite video output Output level 1 Vp-p (75 Ω) Terminal Pinjack(1system) Component video output [NTSC : 480p/480i, PAL : 576p/576i] Y output level 1 Vp-p (75 Ω) PBoutput level 0.7Vp-p(75Ω) PRoutput level 0.7Vp-p(75Ω) Terminal

Pin jack (Y: green, PB:blue,PR:red)(1system)

Q DISC SECTION

Disc played [8 cm or 12 cm] (1) DVD (DVD-Video, DivX (2) DVD-RAM (DVD-VR, JPEG (3) DVD-R (DVD-Video, DVD-VR, JPEG

*6,*7

DivX

)

*6,*7

)

*4,*7

,MP3

*2,*7

*4,*7

, MPEG4

*2,*7

,MP3

*5,*7

, DivX

, MPEG4

*6,*7

*5,*7

)

(4) DVD-R DL (DVD-Video, DVD-VR) (5) DVD-RW (DVD-Video, DVD-VR, JPEG

*6,*7

DivX

)

*4,*7

,MP3

*2,*7

, MPEG4

*5,*7

(6) +R/ +RW (Video) (7) +R DL (Video) (8) CD,CD-R/RW [CD-DA, Video CD, SVCD*1,MP3

JPEG

*4,*7

, MPEG4

*5,*7

, DivX

*6,*7

, HighMAT Level 2 (Audio and

*2,*7

,WMA

*3,*7

Image)]

Conforming to IEC62107

MPEG-1 Layer 3, MPEG-2 Layer 3

Windows Media Audio Ver 9.0 L3

Not compatible with Multiple Bit Rate (MBR)

Exif Ver 2.1 JPEG Baseline files

Picture resolution: between 160 x 120 and 6144 x 4096 pixels (Sub sampling is 4:0:0, 4:2:0, 4:2:2 or 4:4:4). Extremely long and narrow pictures may not be displayed.

MPEG4 data recorded with the Panasonic SD multi cameras or DVD video recorders. Conforming to SD VIDEO specifications (ASF standard)/ MPEG4 (Simple Profile) video system/ G.726 audio system.

Plays all versions of DivX®video (including DivX®6) with standard playback of DivX

media files. Certified to the DixV®Home Theater

Profile. GMC (Global Motion Compensation) is not supported.

The total combined maximum number of recognizable audio, picture and video contents and groups: 4000 audio, picture and video contents and 400 groups.

Pick up Wavelength CD 785 nm DVD 662 nm Laser Power CD CLASS 1M DVD CLASS 1 Audio output (Disc) Number of channels (FL, FR) 2 channel

Q GENERAL

Power supply For GC only AC 220 V to 240 V, 50/60 Hz For GS/GCS/GCT only

C 110 V to 127 V/220 V to 240 V, 50/60 Hz Power consumption 105 W Power consumption in standby mode:

0.9 W (approx.) Dimensions (W x H x D) 250 mm x 330 mm x 333.6 mm Mass 7.5 kg Operating temperature range +5 to +35°C Operating humidity range 5 to 90% RH (no condensation)

Q SYSTEM

SC-VK460(GC) Music Center: SA-VK460 (GC)

Speaker: SB-PF460 (GC)

SC-VK460(GS) Music Center: SA-VK460 (GS)

Speaker: SB-PF460 (GC)

SC-VK460(GCS) Music Center: SA-VK460 (GCS)

Speaker: SB-PF460 (GC)

SC-VK460(GCT) Music Center: SA-VK460 (GCT)

Speaker: SB-PF460 (GC)

For information on speaker system, please refer to the original Service Manual (Order No. MD0707002CE) for SB-PF460GC-S.

Notes:

1. Specifications are subject to changes without notice. Mass and

dimensions are approximate.

2. Total harmonic distortion is measured by the digital spectrum

analyzer.

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

CONTENTS

Page Page

1 Safety Precautions 6

1.1. General Guidelines

1.2. Safety Precaution for AC Power Supply Cord (For GS only) 7

1.3. Before Use (For GS/GCS/GCT only)

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

1.4. Before Repair and Adjustment 7

1.5. Protection Circuitry

1.6. Safety Parts Information

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices 3 Precaution of Laser Diode 4 About Lead-Free Solder (PbF)

4.1. Service caution based on legal restrictions

5 Handling Precautions for Traverse Unit

5.1. Handling Optical Pickup

5.2. Replacing Precautions for Optical Pickup Unit

5.3. Grounding for Preventing Electrostatic Destruction

6 Accessories 7 Operation Procedures

7.1. Main Unit Operation Control

7.2. Remote Control Operation Control

7.3. Disc Information

7.4. DivX VOD Content

8 DVD/CD Mechanism Changer Unit

8.1. CRS1D Mechanism Overview

8.2. Music Port

9 Self diagnosis and special mode setting

9.1. Service Mode Summary Table

9.2. Service Mode Table

9.3. Optical Pick-up Breakdown Diagnosis

9.4. DVD Self-Diagnostic Function Error Code

9.5. Sales Demostration Lock Function

9.6. Service Precautions

10 Assem bling and Disassembl in g

10.1. Caution

10.2. Disassembly flow chart

10.3. Main Parts Location

10.4. Disassembly of Top Cabinet

10.5. Disassembly of DVD/CD Mechanism Changer Unit

10.6. Disassembly of Rear Panel

10.7. Disassembly of Main P.C.B.

10.8. Disassembly of SMPS P.C.B.

10.9. Disassembly of D-AMP P.C.B.

10.10. Disassembly of Front Panel Unit

10.11. Disassembly for Mic P.C.B.

10.12. Disassembly for Panel P.C.B.

10.13. Disassembly of Tact Switch P.C.B.

10.14. Disassembly of Deck mechanism unit

10.15. Disassembly of Deck P.C.B.

10.16. Disassembly for Deck Mechanism

10.17. Disassembly of Traverse Unit

10.18. Disassembly of DVD Module P.C.B.

10.19. Disassembly of Deck Mechanism P.C.B.

10.20. Replacement for cassette lid

10.21. Rectification for tape jam problem

11 Service Positi ons

11.1. Checking and Repairing of Main P.C.B.

11.2. Checking and Repairing of SMPS P.C.B.

11.3. Checking and Repairing of Panel P.C.B.

11.4. Checking and Repairing of D-AMP, Deck P.C.B. & Deck 7 8

12 Adjustment Procedures

Mechanism P.C.B.

12.1. Cassette Deck Section

8 9

11 11 11

12 13

13 14 15 17

18 21

22 22 32 34 40 40

42 43 44 44 45 46 47 47 47 49 49 49 50 51 52 52 54 56 56 56 57

58 58 59

12.2. Tuner Section

12.3. Alignment Points

13 Illustration of ICs, Transistors and Diodes 14 Vol tage and Waveform Chart

14.1. DVD Module P.C.B.

14.2. Main P.C.B.

14.3. Panel P.C.B.

14.4. DAMP P.C.B. & SMPS P.C.B.

14.5. Deck P.C.B., Deck Mechanism P.C.B. & Mic P.C.B.

14.6. Waveform Chart

15 Wiring Connection Diagra m 16 Block Diagra m

16.1. System Control Block Diagram

16.2. DVD Servo/ Video Block Diagram

16.3. Audio Block Diagram

16.4. Digital Amp Block Diagram

16.5. Deck Block Diagram

16.6. SMPS Block Diagram

17 Schem atic Diagra m Notes 18 Schematic Diagram

18.1. (A) DVD Module Circuit

18.2. (B) Main Circuit

18.3. (C) Panel Circuit

18.4. (D) Tact Switch Circuit, (E) Mic Circuit & (G) Deck

Mechanism Circuit

18.5. (F) DECK CIRCUIT

18.6. (H) D-AMP CIRCUIT

18.7. (I) SMPS CIRCUIT

18.8. OPTICAL PICKUP UNIT CIRCUIT

19 Prin ted Ci rcui t Board

19.1. (A) DVD Module P.C.B. (Side A & B )

19.2. (B) Main P.C.B.

19.3. (C) Panel P.C.B.

19.4. (D) Tact Switch P.C.B., (E) Mic P.C.B., (F) Deck P.C.B. &

(G) Deck Mechanism P.C.B.

19.5. (H) D-Amp P.C.B.

19.6. (I) SMPS P.C.B. (FOR GC ONLY)

19.7. (I) SMPS P.C.B. (FOR GCS/GS/GCT ONLY)

20 Basic Troubleshooting Guide for Backe nd Module

20.1. Initialisation and Playability

21 Terminal Function of IC

106

21.1. IC2801 (C2CBYY000469

21.2. IC6601 (C0HBB0000057

22 Expl od ed View s

22.1. Cabinet Parts Location

22.2. Deck Mechanism Unit Parts Location (RAA4901-S)

22.3. Packaging

61 62 63

64 65

65 66 67 67 68 69

70 71

71 72 73 74 75 76

77 79

79 83 87

89 90 91 93 95

98 99

100

101 102 103 104

105

) System Microprocessor

106

)FLDriverIC

107

109

109 111 112

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

23 Repl acement Parts List 113

23.1. Component Parts List

114

24 Schem atic Diagra m for printing w ith letter size

126

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

1 Safety Precautions

1.1. General Guidelines

1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

1.1.1. Leakage Current Cold Check

1. Unplug the AC cord and connect a jumper between the two prongs on the plug.

2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the chassis, the reading should be between 1MΩ and 5.2MΩ.

When the exposed metal does not have a return path to the chassis, the reading must be

Figure 1

1.1.2. Leakage Current Hot Check

1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.

2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF capacitor, between each exposed metallic part on the set and a good earth ground such as a water pipe, as shown in Figure 1.

3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.

4. Check each exposed metallic part, and measure the voltage at each point.

5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.

6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to the customer.

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

1.2. Safety Precaution for AC Power Supply Cord (For GS only)

1.3. Before Use (For GS/GCS/GCT only)

Be sure to disconnect the mains cord before adjusting the voltage selector. Use a minus(-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit will

be used. (If the power supply in your area is 117V or 120V, set to the “117V or 120V” position.) Note that this unit will be seriously damaged if this setting is not made correctly. (There is no voltage selector for some countries,

the correct voltage is already set.)

1.4. Before Repair and Adjustment

Disconnect AC power, discharge Power Supply Capacitors C2550, C2556, C5101, C5104, C5165, C5166, C5171, C5172, C5950 and C5966 through a 10Ω, 1W resistor to ground.

DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac, to avoid overcurrent. Current consumption at AC 220~240V, 50/60 Hz in NO SIGNAL (vol. min, at CD mode) should be ~250mA . [For GC only] Current consumption at AC 110~127V, 50/60 Hz & AC 220~240V, 50/60Hz in NO SIGNAL (vol. min, at CD mode) should be

~400mA and ~250mA respectively. [For GCS/GS/GCT only]

1.5. Protection Circuitry

The protection circuitry may have operated if either of the following conditions are noticed:

•

• No sound is heard when the power is turned on.

• •

•

• Sound stops during a performance.

• •

The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are “shorted”, or if speaker systems with an impedance less than the indicated r ated impedance of the amplifier are used. If this occurs, follow the procedure outlines below:

1. Turn off the power.

2. Determine the cause of the problem and correct it.

3. Turn on the power once again after one minute.

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

Note :

When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.

1.6. Safety Parts Information

Safety Parts List:

There are special components used in this equipment which are important for safety. These parts are marked by

be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of manufacturer.

Table 1

Reference No. Part No. Part name & Description Remarks

360 RAE2023Z-S TRAVERSE UNIT S5950 K0AABLB000003 SW VOLTAGE SELECTOR GS/GCS/GCT L5950 ELF15N035AN LINE FILTER T5950 G4CYBYY00013 MAIN TRANSFORMER T5951 G4C2AAJ00005 SUB TRANSFORMER Z5950 ERZV10V511CS ZENER

RL5950 K6B1AEA00015 POWER RELAY

F1 K5D122BLA014 FUSE GC F1 K5D252BLA013 FUSE GS/GCS/GCT

F2 K5D122BLA014 FUSE GS/GCS/GCT FP5100 K5G401A00008 FUSE PROTECTOR FP5950 K5G402A00025 FUSE PROTECTOR JK5950 K2AA2B000011 AC INLET

A2 K2CQ2CA00007 AC CORD GC/GCS/GS A2 K2CT3CA00004 AC CORD GS A2 K2CP2YY00001 AC CORD GCT

in the Schematic Diagrams & Replacement Parts List. It is essential that these critical parts should

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage caused by electro static discharge (ESD).

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminium foil, to prevent electrostatic charge build up or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder remover device. Some solder removal devices not classified as “anti-static (ESD protected)” can generate electrical charge to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminium foil or comparable conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed.

Caution

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize body motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to damage an ES device).

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

3 Precaution of Laser Diode

Caution :

This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick-up lens. Wavelength : 785 nm(CD)/662 nm(DVD) Maximum output radiation power from pick up : 100 µW/VDE

Laser radiation from pick up unit is safety level, but be sure the followings:

1. Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous.

2. Do not adjust the variable resistor on the pick up unit. It was already adjusted.

3. Do not look at the focus lens using optical instruments.

4. Recommend not to look at pick-up lens for a long time.

CAUTION!

THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

Q Use of Caution Labels

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

4 About Lead-Free Solder (PbF)

4.1. Service caution based on legal restrictions

4.1.1. General description about Lead-Free Solder (PbF)

The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this equipment in considering the globally environmental conservation.

The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin (Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that of the normal solder.

Definition of PCB Lead Free Solder being used

The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder. (See right figure)

Service caution for repair work using Lead Free Solder (PbF)

•

• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.

• •

(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)

•

• To put lead free solder, it should be well molten and mixed with the original lead free solder.

• •

•

• Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.

• •

•

• Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt

• •

the lead free solder.

•

• Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30

• •

degrees C (662±86°F).

Recommended Lead Free Solder (Service Parts Route.)

•

• The following 3 types of lead free solder are available through the service parts route.

• •

RFKZ03D01K-----------(0.3mm 100g Reel) RFKZ06D01K-----------(0.6mm 100g Reel) RFKZ10D01K-----------(1.0mm 100g Reel)

Note

* Ingredient: Tin (Sn), 96.5%, Silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

5 Handling Precautions for Traverse Unit

The laser diode used inside optical pickup could be destroyed due to static electricity as a potential difference is caused by electrostatic load discharged from clothes or human body. Handling the parts carefully to avoid electrostatic destruction during repair.

5.1. Handling Optical Pickup

1. Do not impact on optical pickup as the unit structurally uses an extremely precise technology.

2. Short-circuit the flexible cable of optical pickup remove from the circuit board using a short-circuit pin or clip in order to prevent laser diode from electrostatic destruction (Refer to Fig. 3.1 and Fig. 3.2)

3. Do not handle flexible cables forcibly as this may cause snapping. Handle the parts carefully (Refer to Fig. 3.1)

4. A new optical pickup is equipped with an anti-static flexible cable. After replacing and connecting to the flexible board, cut the anti-static flexible cable. (Refer to Fig. 3.1)

Fig 3.1

5.2. Replacing Precautions for Optical Pickup Unit

Optical Pickup

The optical pickup by which part supply was carried out attaches the short clip to the flexible board for laser diode electrostatic discharge damage prevention. Please remove the short clip and be sure to check that the short land is open, before connecting. (Please remove solder, when the short land short-circuits.)

5.3. Grounding for Preventing Electrostatic Destruction

1. Human body grounding Use the anti-static wrist strap to discharge the static electricity accumulated in your body. (Refer to Fig. 3.2)

2. Work place grounding Place a conductive material (conductive sheet) or ironboard where optical pickup is placed. (Refer to Fig. 3.2)

Note :

Keep your clothes away from optical pickup as wrist strap does not release the static electricity charged in clothes.

Fig. 3.2

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

6 Accessories

7 Operation Procedures

7.1. Main Unit Operation Control

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

7.2. Remote Control Operation Control

7.3. Disc Information

7.3.1. Disc Playability

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

7.3.2. To Play MP3/WMA and still pictures (JPEG/tiff)

7.4. DivX VOD Content

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

8 DVD/CD Mechanism Changer Unit

8.1. CRS1D Mechanism Overview

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

8.1.1. General Feature

•

• This is a five disc changer mechanism for CD/DVD. The outline figure is shown below.

• •

•

• The mechanism has "CHANGE WHILE PLAY" function. It open other trays for disc exchanging while one tray is at PLAY

• •

position performing recording or reproducing.

•

• The mechanism can quickly change all trays with "CHANGE ALL" function. All trays can be move to OPEN position with one

• •

operation.

•

• There is no sensor to indicate presence of disc on any tray.

• •

8.1.2. Hardware composition

•

• Below is the hardware components of the mechanism

• •

Name Function

Open Switch (OPEN-SW) The switch is used to detect normal tray opening

The switch is used for detect tray being manually push/trigger when full open Home Switch (HOME-SW) Is used to detect cam gear home position Close Sensor (CLOSE-SENSOR) Used for normal single tray closing

Used to detect cam gear rotate to Play Driving position Play Switch (PLAY-SW) Detect TRV clamping complete position Stocking Switch (STOCK-SW) Detect tray completely transfer for play position to stocking position UD Sensor (UD-SENSOR) Detect TRV vertical movement position Top Switch (TOP-SW) Detect a default position of TRV vertical movement position Driver IC To drive Motor Motor Main driving source for changer Plunger Switching the driving source from motor to:

1. Tray open/close

2. Drive tray to play/stock position and TRV vertical movement

8.1.3. Mechanism Operation

•

• This mechanism has the following state:

• •

1. Driving of a tray to open/close

2. Up/down operation of a traverse performs a state changes of tray. By using the plunger to lift/release of a switching gear, and the cam gear to lift/release the function gear the motor can be link

to several gear trains to perform various operations.

•

• The functions that can be perform in this mechanism are described as below:

• •

Condition Explanation

Open current playing tray The state to change current playing disc. All tray will be open at once and current tray at PLAY position

Open All The state where all trays being driven to OPEN position. The disc can be taken in or out from tray to tray

Stock The state where the trays are stored in STOCK position Play The state where one of the tray 5 trays is being driven to PLAY position and clamped by traverse unit Play & Open Tray-* The state where one of the tray is in playing position performing recording or reproducing, other trays can

will be expose.

by close tray one by one from top to bottom.

be used (OPEN position) for disc exchanging without stopping the recording or reproducing process.

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

Condition Explanation

Change The state when one of the opened tray being driven from OPEN position to STOCK position and other

Close All The state where all open trays will being driven from OPEN position to STOCK position, one by one from

Note: * represent tray number (from 1 ~ 5)

opened trays remain still at OPEN position.

top to bottom

8.1.4. DVD/CD Mechanism Changer Unit (CRS1D)

Note:

This service manual does not contain the following information for the mention DVD/CD Mechanism Changer Unit:

•

• Schematic Diagram, Block Diagram and P.C.B. layout of DVD/CD Loading P.C.B.

• •

•

• Part List for individual parts of the mechanism.

• •

•

• Exploded View and Parts List for individual parts of the DVD/CD Mechanism Changer Unit.

• •

Please refer to the original service manual (Order No. MD0603065A3) for the DVD/CD Mechanism Changer Unit CRS1D.

8.2. Music Port

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

With reference to page 27 of the operating instruction manual.

SA-VK460GC / SA-VK460GS / SA-VK460GCS / SA-VK460GCT

9 Self diagnosis and special mode setting

This unit is equipped with functions for checking and inspecting.

9.1. Service Mode Summary Table

9.1.1. Service Mode Summary Table (For DVD)

The service modes can be activated by pressing various button combination on the player and remote control unit. Below is the summary of major checking:

Player buttons Remote control unit

buttons

[STOP] [0] Error code display. (Refer to section, “9.2.1 of Service

[5] Jitter checking.

[PAUSE] Initial setting of laser drive current

[1] ADSC internal RAM data check. (Refer to section 9.2.2 of Service [3] CD laser drive current check.

[FUNCTIONS] DVD laser drive current check.

[6] Region display and mode. (Refer to section 9.2.3 of Service [7] Micro-processor firmware version check.

[ ] Initialization of the player (factory setting is restored.)

Used after replacement of micro-computer (DV 5.0 LSI IC (IC8611), FLASH ROM IC, EEPROM and HDMI module.

[8] DVD (HDMI) module firmware version check. (Refer to section 9.2.4 of Service

[MENU] Communication error display.

[TOP MENU] ECC error check.

[DISC] CPPM/CRM keys check.

[ENTER] DVD (HDMI) Module P.C.B. reset.

[ ] Timer 1 check. (Refer to the section, “9.2.5 Service [ ] Timer 1 reset. (while in Timer 1 check) [ ] Timer 2 check. [ ] Timer 2 reset. (While in Timer 2 check)

Application Note

Mode Table 1” for more information).

Mode Table 2 for more information)

Mode Table 3 for more information)

Mode Table 4 for more information)

Mode Table 5” for more information).

Note:

An error code will be cancelled if a power supply is turned OFF. *1: CPPM is the copy guard function beforehand written in the disc for protection of copyrights. *2: CEC is the consumer electronic control used for high-level user control HDMI-connected devices. *3: HDCP is the specification developed to control digital audio & video contents transmission for DVI or HDMI connections. Refer to section 7 (Operating Instruction) for information on the buttons.

9.1.2. Service Mode Summary Table (For Inspection)

Player buttons Player/Remote Control Unit Buttons Application Note

[STOP] [ ] To enter into self-diagnostic checking. (Refer to section, “9.2.6 of Service

[1] DVD/CD Mechanism changer unit reliability check.

[SINGLE CHANGE] To unlock the traverse unit for service.

[4], [7] To enter into Doctor Mode.

Mode Table 6” for more information).

9.2. Service Mode Table

By pressing various button combinations on the player and remote control unit can activate the various service modes for checking.

Special Note:

Due to the limitations of the no. characters that can be shown on FL Display, the “FL Display” button on the remote control unit is used to show the following page. (Display 1 / Display 2).