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AVD-K150B/K150E/K150G/ K150N/K150R
SERVICE MANUAL
Ver. 1.3 2005.04
AEP Model
AVD-K150B/K150E/K150N/K150R
UK Model
AVD-K150G
AVD-K150B/K150E/K150G/K150N/K150R is the Amplifier, DVD/VIDEO player and tuner section in DAV-D150B/D150E/D150G/D150N/D150R.
· Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic", and the double-D symbol are trademarks of Dolby Laboratories. Confidential unpublished works. Copyright 1992 -1997 Dolby Laboratories. All rights reserved. · DTS and DTS Digital Surround are registered trademarks of Digital Theater Systems, Inc.
Model Name Using Similar Mechanism NEW DVD Mechanism Type Optical Pick-up Name VCR Mechanism Type DP-7C PVR-502W D35 (N)
SPECIFICATIONS
General
Power requirements Power consumption Dimensions (approx.) Mass (approx.) Operating temperature Operating humidity AC 230 V , 50/60 Hz 74W 430 x 98 x 386 mm (17 x 3 7/8 x 15 1/4 inches) (W x H x D) 6.5 kg (14 lb 6 oz) 5 °C to 35 °C (41 °F to 95 °F) 5 % to 90 % Rewind time Input level Maximum recording time SP: 4 hour (E-240 tape), LP: 8 hour (E-240 tape) About 180 seconds (E-180 tape) VIDEO: 1.0 V(p-p), 75 ohms, unbalanced AUDIO: -6.0 dBm, more than 10 kohms (SCART) -6.0 dBm, more than 47 kohms (RCA) DIGITAL AUDIO IN: Optical connector x 1 Output level VIDEO: 1.0 V(p-p), 75 ohms, unbalanced
DVD Section
Laser Signal system Frequency response Signal-to-noise ratio Harmonic distortion Semiconductor laser (Wavelength DVD: 650nm, CD: 780nm) PAL DVD (PCM 48 kHz): 10 Hz to 22 kHz CD: 10 Hz to 20 kHz More than 80 dB (ANALOG OUT connectors only) Less than 0.05%
FM Tuner
Tuning Range Intermediate Frequency 65 - 74 MHz (150R) 87.5 - 108.0 MHz (ALL MODEL) 10.7 MHz
AM Tuner
Tuning Range Intermediate Frequency 522 - 1,611 kHz 450 kHz
VIDEO Section
Head system Television system 4 heads helical scan azimuth system PAL B/G colour system (150E)
Amplifier Section
Stereo mode Surround mode 70W + 70W (6 at 1 kHz, THD 10 %) Front: 70W/ch (6 at 1 kHz, THD 10 %) Center*: 70W (6 at 1 kHz, THD 10 %) Surround*: 70W/ch (6 at 1 kHz, THD 10 %) Subwoofer*: 100W (4 at 30 Hz, THD 10 %)
* Depending on the sound mode settings and the source, there may be no sound output.
Recording format Tape speed
PAL B/G, SECAM L colour system (150B) PAL I colour system (150G) PAL B/G, SECAM D/K colour system (150N) PAL (B/G, I/I), SECAM D/K colour system (150R) PAL PAL/MESECAM; 23.39 mm/s (SP), 16.69 mm/s (LP)
Inputs
AV 2, AV 3, OPTICAL IN (AV3 OPT)
· Design and specifications are subject to change without notice.
DVD/VCR RECEIVER
9-877-959-04
2005D16-1 © 2005.04
Sony Corporation
Audio Group Published by Sony Engineering Corporation
AVD-K150B/K150E/K150G/K150N/K150R
Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. LASER DIODE AND FOCUS SEARCH OPERATION CHECK Carry out the "S curve check" in "CD section adjustment" and check that the S curve waveform is output several times.
Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270 °C during repairing. · Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). · Be careful not to apply force on the conductor when soldering or unsoldering. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : LEAD FREE MARK Unleaded solder has the following characteristics. · Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! · Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. · Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.
SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2
AVD-K150B/K150E/K150G/K150N/K150R
· SERVICE POSITION-1 (DVD Mechanism Deck) Extension cable (J-2501-242-A, J-2501-245-A) is required to inspect the DVD mechanism deck.
DVD mechanism deck J-2501-245-A (1mm/23P/L300)
J-2501-242-A (1mm/11P/L300)
· SERVICE POSITION-2 (VIDEO Mechanism Deck) Perform the operation check of the VIDEO mechanism deck after the VCR board and the VIDEO mechanism deck are turned upside down.
SMPS board
VCR board
VIDEO mechanism deck
3
AVD-K150B/K150E/K150G/K150N/K150R
TABLE OF CONTENTS 1. 2.
2-1. 2-2. 2-3. 2-4. 2-5. 2-6. 2-7.
GENERAL ................................................................... 5 DISASSEMBLY
Cover, Front Panel Assembly .......................................... DISPLAY/KEY Board .................................................... Video Mechanism Deck .................................................. DVD Mechanism Deck ................................................... SMPS Board .................................................................... VCR Board ...................................................................... DVD & AMP Board ........................................................ 12 13 13 14 14 15 15
3.
ELECTRICAL ADJUSTMENTS
3-1. VCR Section Electrical Adjustment ................................ 16 3-2. Electrical Troubleshooting Guide .................................... 17 3-3. DVD & AMP Section Electrical Troubleshooting Guide .................................................... 32
4. 5.
5-1. 5-2. 5-3. 5-4. 5-5. 5-6. 5-7. 5-8. 5-9.
MECHANICAL ADJUSTMENTS ......................... 40 DIAGRAMS
52 53 54 55 56 57 58 59 60 61 62 63
Block Diagram DVD (OVERALL) Section .............. Block Diagram DVD (AMP) Section ........................ Block Diagram VCR/PANEL Section ....................... Block Diagram VCR (Y/C) Section .......................... Block Diagram VCR (TU-VPS) Section ................... Block Diagram VCR (HI-FI) Section ........................ Block Diagram VCR POWER Section ...................... Block Diagram POWER Section ............................... Printed Wiring Board DVD & AMP Section (Component Side) ................. 5-10. Printed Wiring Board DVD & AMP Section (Conductor Side) ................... 5-11. Schematic Diagram MPEG Section [DVD & AMP Board] (1/6) .............. 5-12. Schematic Diagram RF & SERVO Section [DVD & AMP Board] (2/6) .............................................
5-13. Schematic Diagram AUDIO, _COM Section [DVD & AMP Board] (3/6) ............................................. 5-14. Schematic Diagram DIGITAL AMP Section [DVD & AMP Board] (4/6) ............................................. 5-15. Schematic Diagram PWM & CODEIC Section [DVD & AMP Board] (5/6) ............................................. 5-16. Schematic Diagram INTERFACE Section [DVD & AMP Board] (6/6) ............................................. 5-17. Printed Wiring Board VCR Section ........................... 5-18. Schematic Diagram VCR SYSTEM Section [VCR Board] (1/6) ........................................................... 5-19. Schematic Diagram AVCP/SECAM Section [VCR Board] (2/6) ........................................................... 5-20. Schematic Diagram HI-FI/SWITCH Section [VCR Board] (3/6) ........................................................... 5-21. Schematic Diagram TUIF/NICAM/VPS Section [VCR Board] (4/6) ........................................................... 5-22. Schematic Diagram SCART/SWITCH Section [VCR Board] (5/6) ........................................................... 5-23. Schematic Diagram VCR POWER Section [VCR Board] (6/6) ........................................................... 5-24. Printed Wiring Board DISPLAY/KEY Section ......... 5-25. Schematic Diagram DISPLAY/KEY Section ........... 5-26. Printed Wiring Board SMPS Section ........................ 5-27. Schematic Diagram SMPS Section ..........................
64 65 66 67 70 71 72 73 74 75 76 78 79 80 81
6.
6-1. 6-2. 6-3. 6-4. 6-5. 6-6.
EXPLODED VIEWS
Front Panel Section ......................................................... Overall Section ................................................................ DVD Mechanism Deck ................................................... Video Mechanism Deck -1 .............................................. Video Mechanism Deck -2 .............................................. Video Mechanism Deck -3 .............................................. 83 84 85 86 87 88
7.
ELECTRICAL PARTS LIST .................................. 89
4
AVD-K150B/K150E/K150G/K150N/K150R SECTION 1 This section is extracted GENERAL
from instruction manual.
Front Panel
@/1 Switches the DVD/VCR Receiver ON and OFF. AV 3 IN (VIDEO/AUDIO (Left/Right)) Connect the audio/video output of an external source (Audio system, TV/ Monitor, another VCR). Disc Tray (DVD deck) Insert a disc here. INPUT SELECT Selects the VIDEO deck's source (Tuner, AV1, AV2, AV3 OPT or AV3). A VIDEO Ejects the tape in the VIDEO deck. VOLUME Adjusts sound level of speakers. x (STOP) Stops playback or recording. X (PAUSE) Pause playback or recording temporarily. H (PLAY) To play back a disc or a recorded tape.
Video Cassette Compartment (VIDEO deck) Insert a video cassette here.
TUNER FM/AM Selects Radio operation mode.
Display window Shows the current status of the DVD/VCR Receiver. A DVD Opens or closes the disc tray. DVD/VIDEO Toggles control between the DVD deck and the VIDEO deck.
CH/PRESET (+/-) Scans up or down through memorized channels or radio frequencies (stations).
Remote Sensor Point the DVD/VCR Receiver remote control here.
lm DVD: Go to beginning of current chapter/track or to previous chapter/track. Press and hold for a fast reverse search. VIDEO: Rewinds the tape from STOP mode or for fast reverse picture search. ML DVD: Go to NEXT chapter/track. Press and hold for a fast forward search. VIDEO: Advances the tape from STOP mode or for fast forward picture search. z REC/ITR To record normally or to activate Instant Timer Recording.
5
AVD-K150B/K150E/K150G/K150N/K150R
Display Window
SHUFFLE RANDOM playback active Indicates repeat mode A cassette is in the VIDEO deck. PGM Programmed playback active. BIL Indicates when a BILINGUAL broadcast is being received. STEREO Indicates a stereo broadcast is being received. HI-FI Indicates the unit is playing back a tape recorded in Hi-Fi. ANGLE active OPT Indicates source of DVD/VCR Receiver is DIGITAL AUDIO IN. RDS Lights up when the FM station tuned is transmitting RDS data. Indicates encoding format of the current disc. Indicates sound mode is DOLBY PROLOGIC II. SP LP Displays the recording and playback speed.
SHUFFLE PGM REPEAT 1 A B
BIL STEREO CHAP TRK
PCM
D PL VIDEO TIMER
RDS ANGLE HI-FI REC OPT SP LP
MP3 DVD VCDPBC
REC DVD/VCR Receiver is Recording. TIMER DVD/VCR Receiver is in timer recording or a timer recording is programmed. VIDEO DVD/VCR Receiver functions are available and channels are selected at DVD/VCR Receiver. Indicates clock, total playing time, elapsed time, chapter number, track number, channel, radio frequency, volume, channel or current deck status (Playback, Pause, etc). Indicates playback or pause mode. PBC Indicates PBC On mode DVD DVD inserted. CD Audio CD inserted. VCD Video CD inserted MP3 MP3 disc inserted
6
AVD-K150B/K150E/K150G/K150N/K150R
Remote Control
7
AVD-K150B/K150E/K150G/K150N/K150R
Rear Panel
FM ANTENNA Connectors Connect the FM antenna to this terminal. SPEAKERS Connectors Connect the six supplied speakers to these terminals. EURO AV2 DECODER/EXTERNAL (VIDEO IN) Connect to Pay-TV decoder, Set Top Box or another video recorder. AC Power Cord Plug into the power source.
ANTENNA IN Connect the VHF/UHF/CATV antenna to this terminal. ANTENNA OUT (DVD/VIDEO OUT) Connect to a TV with RF coaxial inputs. EURO AV1 (TO TV) (VIDEO IN+OUT/DVD OUT) Connect to your TV set or another video recorder.
AV3 (OPTICAL IN) (DIGITAL AUDIO IN) Connect to a digital audio output on a digital device. AM ANTENNA Connectors Connect the AM antenna to this terminal.
Dust Protection Cap Remove the dust protection cap from the OPTICAL IN jack and connect the optical digital cable (not supplied) securely so that the configurations of both the cable and the connector match. Keep the dust protection cap and always reattach the cap when not using the connector to protect against dust intrusion.
Remote control battery installation
Detach the battery cover on the rear of the remote control, and insert two R6 (size AA) batteries with and aligned correctly. When using the remote control, point it at the remote sensor on the unit.
Caution Do not mix old and new batteries. Never mix different types of batteries (standard, alkaline, etc.).
Do not touch the inner pins of the jacks on the rear panel. Electrostatic discharge may cause permanent damage to the unit.
8
AA
AA
AVD-K150B/K150E/K150G/K150N/K150R
Connections TV and Decoder (or Set Top Box) Connections
Make one of the following connections, depending on the capabilities of your existing equipment.
SCART INPUT
AERIAL
Rear of TV
Tips · Depending on your TV and other equipment you wish to connect, there are various ways you could connect the DVD/VCR Receiver. Use one of the connections described below. · Please refer to the manuals of your TV, VIDEO, Stereo System or other devices as necessary to make the best connections. Caution - Make sure the DVD/VCR Receiver is connected directly to the TV. Select the correct AV input on your TV. - Do not connect your DVD/VCR Receiver to TV via your VIDEO. The DVD image could be distorted by the copy protection system.
Basic connection (RF)
1
Connect the aerial cable (A) from your indoor/ outdoor aerial to ANTENA IN jack on the rear panel of DVD/VCR Receiver.
supplied from the 2 Connect theyourjack onRF cable (R) Input.DVD/VCR ANTENA OUT the rear panel of Receiver to television's Aerial Notes When you connect the DVD/VCR Receiver to your TV, be sure to turn off the power and unplug both units from the wall outlet before making any connections.
Basic connections (AV)
1
Connect the EURO AV1 (TO TV) on the rear panel of the DVD/VCR Receiver to the scart input socket on the TV using a SCART lead (E).
transmit encoded television 2 Some TV broadcastersonly see with a a decoder or signals which you can purchased rented decoder.You can connect such (descrambler) to the DVD/VCR Receiver (D).
9
AVD-K150B/K150E/K150G/K150N/K150R
Connections (Continued) Radio Aerial Connections
Connect the supplied FM/AM antennas for radio listening.
Digital Device Connections
Connect the OPTICAL IN jacks on the DVD/VCR Receiver to the digital audio out (optical) jacks on your digital device (Game device, Digital Set Top Box, etc.), using optional optical audio cable. To select source of DVD/VCR Receiver to OPTICAL IN, press INPUT SELECT repeatedly on the remote control until "AV3 OPT" appears in the display window. Notes · If the audio format of the digital output does not match the capabilities of your DVD/VCR Receiver, the DVD/VCR Receiver will produce a strong, distorted sound or no sound at all. · The Optical input function is available only when the other unit's Sampling Frequency is 32 - 48kHz.
1 Connect the AM loop antenna to the AM antenna connectors. connectors. 2 Connect the FM wire antenna to the FM antenna
Notes · To prevent noise pickup, keep the AM loop antenna away from the DVD/VCR Receiver and other components. · Be sure to fully extend the FM wire antenna. · After connecting the FM wire antenna, keep it as horizontal as possible.
Accessory Audio/Video (A/V) Connections to DVD/VCR Receiver
Connect the AV3 IN jacks on the DVD/VCR Receiver to the audio/video out jacks on your accessory component, using optional audio/video cables.
10
AVD-K150B/K150E/K150G/K150N/K150R
Connections (Continued) Speaker System Connections
Connect the speakers using the supplied speaker cords by matching the colors of the terminals and those of the cords. To obtain the best possible surround sound, adjust the speaker parameters (distance, level, etc.). Notes · Be sure to match the speaker cord to the appropriate terminal on the components: 3 to 3 and # to #. If the cords are reversed, the sound will be distorted and lack bass. · If you use front speakers with low maximum input rating, adjust the volume carefully to avoid excessive volume output to the speakers. · Do not disassemble the front covers of supplied speakers.
Center Speaker
Speaker Positioning
For a normal setup use 6 speakers (2 front speakers, center speaker, 2 rear speakers and subwoofer).
·
Front Speakers Based on your listening position, set up the speakers at equal distance. And by hearing position, set up an interval between speakers of 45 degree. Center Speaker It is ideal that the center speakers and front speakers are same height. But normally place it above or below the television as shown below. Rear Speakers Place the rear surround speakers to the left and right behind the primary listening area. These speakers recreate sound motion and atmosphere required for surround playback. For best results, do not install the rear speakers too far behind the listening position, install them at or above the level of the listenerę ears. s It is also effective to direct the rear speakers towards a wall or ceiling to further disperse the sound. In the case of a smaller room size, if the audience is near to the rear wall set the rear speakers opposite each other, and set the rear speakers 60 - 90 cm above the listener's ears. Subwoofer This can be placed in any front position.
Subwoofer Center Speaker Front Speaker (Left) Rear Speaker (Left) Front Speaker (Right) Rear Speaker (Right)
·
·
Front Speaker (Right)
Front Speaker (Left)
·
Rear speaker (Right surround) Subwoofer
Rear speaker (Left surround)
Speaker Positioning Example Note Speaker stand is optional.
About Ferrite Core
1 2 3
Be sure to attach the ferrite core to the speaker cables (for connecting to this unit). This ferrite core can reduce noises. How to attach the ferrite core.
Attaching the foot pads
To prevent speaker vibration or movement while listening, attach the supplied foot pads to the speaker, as shown.
Foot pads
1 Push the stopper [a] of the ferrite core
to open.
2 Wind the Center and Subwoofer
Speaker cables once on the ferrite core. Pass the others straight on the ferrite core. Close the ferrite core until it clicks.
Attaching the color labels
Attach the color labels onto the rear panel of the speakers before connecting the speakers.
FRONT L
3
Color labels
11
AVD-K150B/K150E/K150G/K150N/K150R SECTION 2 DISASSEMBLY
· This set can be disassembled in the order shown below. · The dotted square with arrow ( ) prompts you to move to the next job when all of the works within the dotted square ( ) are completed.
SET
2-1.COVER, FRONT PANEL ASSEMBLY (Page 12)
2-2.DISPLAY/ KEY BOARD (Page 13)
2-3.VIDEO MECHANISM DECK (Page 13)
2-5.SMPS BOARD (Page 14)
2-4.DVD MECHANISM DECK (Page 14)
2-6.VCR BOARD (Page 15)
2-7.DVD & AMP BOARD (Page 15)
Note: Follow the disassembly procedure in the numerical order given.
2-1. COVER, FRONT PANEL ASSEMBLY
1 two screws
4 cover
2 three screws
3 two screws
7 three hooks
6 three hooks 5 volume knob
8 front panel assembly
12
AVD-K150B/K150E/K150G/K150N/K150R
2-2. DISPLAY/KEY BOARD
1 three claws
4 DISPLAY/ KEY board 2 four claws 3 connector (PM602,PM601)
2-3. VIDEO MECHANISM DECK
1 six screws
4 VIDEO mechanism deck
2 flexible cable 3 connector (PMCO1)
13
AVD-K150B/K150E/K150G/K150N/K150R
2-4. DVD MECHANISM DECK
2 two screws 3 shield cover 1 two screws 5 flexible cable (PMD01) 4 flexible cable (PMD03) 7 DVD mechanism deck
6 door case
2-5. SMPS BOARD
1 four screws
2 shield 4 connector (PSW01) 5 connector (PSV01) 3 connector (PW101)
7 SMPS board
6 screw (3 × 10)
14
AVD-K150B/K150E/K150G/K150N/K150R
2-6. VCR BOARD
6 connector (PDV01) q; three screws 7 flexible cable (PVD02) 8 flexible cable (PVD03) 2 connector (PVS01) 5 VCR-DISPLAY pwb holder qs VCR board 1 four screws
4 bracket
9 screw
3 screw
qa two claws
2-7. DVD & AMP BOARD
1 connector (PDV01)
4 four screws
6 DVD & AMP board 2 flexible cable (PDV02)
3 flexible cable (PDV03) 5 four screws
15
AVD-K150B/K150E/K150G/K150N/K150R SECTION 3 ELECTRICAL ADJUSTMENTS
3-1. VCR SECTION ELECTRICAL ADJUSTMENT 1. Servo Adjustment
1) PG Adjustment
· Test Equipment a) OSCILLOSCOPE b) NTSC MODEL : NTSC SP TEST TAPE
· Adjustment And Specification MODE
PLAY
MEASUREMENT POINT
V.Out H/SW(W373, W374)
ADJUSTMENT POINT
R/C TRK JIG KEY
SPECIFICATION
6.5 ± 0.5H
· Adjustment Procedure
a) Insert the SP Test Tape and play. b) Connect the CH1 of the oscilloscope to the H/SW(W373, W374) and CH2 to the Video Out for the VCR. c) Trigger the mixed Combo Video Signal of CH2 to the CH1 H/SW(W373, W374), and then check the distance (time difference), which is from the selected A(B) Head point of the H/SW(W373, W374) signal to the starting point of the vertical synchronized signal, to 6.5H ± 0.5H (412s, 1H=63s). Note - Press FRONT CH UP KEY and FRONT PLAY KEY on Deck playback, and it goes in to ATR PRESET. after the SP Test Tape is inserted.
· PG Adjustment Method
a-1) Payback the SP standard tape b-2) Press the "O" key on the Remote controller and the "PLAY" key on the Front Panel the same time, then it goes in to Tracking initial mode. c-3) Repeat the above step(No.b-2), then it finishes the PG adjusting automatically. d-4) Stop the playback, then it goes out to PG adjusting mode after mony the PG data.
· CONNECTION
V.Out
OSCILLOSCOPE H/SW(W373, W374) CH1 CH2
R/C KEY
· WAVEFORM
H/SW V.out (W373, W374)
H/SW 6.5H(412s)
Composite VIDEO
16
AVD-K150B/K150E/K150G/K150N/K150R
3-2. ELECTRICAL TROUBLESHOOTING GUIDE 1. Power (SMPS) CIRCUIT
(1) No 5.3VA (SYS/Hi-Fi/TUNER) NO 5.3VA.
YES
(2) No 12VA (TO CAP, DRUM MOTOR) NO 12VA.
YES
Is the F101 normal?
YES
NO
Replace the F101. (Use the same Fuse)
Is the Vcc(13V) supplied NO to (+) terminal in D115?
YES
Check or Replace the D110.
Is the BD101 normal?
YES
NO
Replace the BD101.
Is the Vcc(12V) supplied NO to (-) terminal in D115?
YES
Replace the D115.
Is the R101 normal?
YES
NO
Replace the R101.
Check or Replace the Motor Vcc.
Is Vcc(8.5~21V) supplied to IC101 Pin7?
YES
NO
Is the D102 normal? NO Check or Replace the D102. (3) No 5.0V (SYS/Hi-Fi/TUNER)
Is the D112 normal?
YES
NO
NO 5.0VA. Replace the D112.
YES
Is there about 2.5V NO at the IC103 Vref?
YES
Replace the IC103.
NO Is 5.3VA put into the Q160 Emitter?
YES
5.3VA Line Check.
Check the Main PCB 5.3VA/5.0V Line short?
Is the Q162 Base "H"?
YES
NO
Check the Power Control.
Is about 5V put into NO the Q160 Base?
YES
Check or Replace the Q162, R157, R158, R159.
Check or Replace the Q162/Q160.
17
AVD-K150B/K150E/K150G/K150N/K150R
(4) No 5V (TO DVD) NO 5V.
YES
(5) No 33V (TUNER) No 33V.
YES
NO Is 5.3VA put into the Q160 Emitter?
YES
5.3VA Line Check.
Is Q163 Base "H"?
YES
NO
Check the Power Control.
Is the Q162 Base "H"?
YES
NO
Check the Power Control.
Check or Replace Q161, R154, R155.
Is about 5V put into NO the Q160 Base?
YES
Check or Replace the Q162, R157, R158, R159.
Check or Replace the Q162/Q160
18
AVD-K150B/K150E/K150G/K150N/K150R
2. SYSTEM/KEY CIRCUIT (1) AUTO STOP
Auto Stop YES Does the SW25 waveform appear at the IC501 Pin105? YES NO Do the T-UP Reel Pulses appear at the IC501 Pin49? YES Replace the IC501. Do T/UP Reel Pulses appear at the Q514 Base terminal ? YES Replace the T/UP Reel Sensor (RS501). NO Does 5.2V appear at the RS501? YES NO NO Check the Drum Motor signal.
Check the Power Circuit.
(2) The unstable loading of a Cassette tape
The unstable loading of a Cassette tape YES Is 12V applied to the PMC01 Pin8? YES Does the "H" signal appear at the IC501 Pin30 during inserting the CST ? YES Does the "L" signal appear at the IC501 Pin72 during inserting the CST? NO YES Check the Deck Mechanism. Check the IC501 Pins68, 69, 70, 71. Check the CST SW and the peripheral circuitry. NO Is 5.3V applied to the R544 ? YES NO NO Check the Power.
Refer to SMPS 5.3VA troubleshooting.
Caution : Auto stop can occur because Grease or Oil is dried up
19
AVD-K150B/K150E/K150G/K150N/K150R
3. SERVO CIRCUIT (1) Unstable Video in PB MODE
Unstable Video in PB Mode. YES Does the Noise level of the screen change periodically? YES Do the CTL pulses appear at the IC501 Pin8? YES Does the CFG waveform appear at the IC501 Pin9? YES On tracking do the CTL pulses move? YES Does the Video Envelope waveform appear at the IC501 Pin24? YES Replace the IC501. NO Refer to "When the Y signal doesn't appear on the screen in PB Mode". NO Replace the IC501. NO Is adjusting the height of the CTL Head accurate? NO Readjust the height of the CTL Head.
Refer to "(2) No 12VA of Power section" Do the Drum PWM Pulses appear at the IC501 Pin107? YES Aren't the foil patterns and the Components between IC501 Pin107 and PMC01 Pin12 short? NO Do the DFG Pulses appear at the IC501 Pin104? NO YES Do the Drum PWM Pulses appear at the IC501 Pin107? YES Aren't the connecting patterns and the Components between IC501 Pin107 and PMC01 Pin12 short? NO Aren't the foil patterns and the Components between IC501 Pin104 and PMC01 Pin11 short? Replace the IC501. NO YES
(2) When the Drum Motor (2) doesn't run.
When the Drum Motor doesn't run,
Do the DFG Pulses appear at the PMC01 Pin11? NO Replace the Cap M.
Does 12V appear at the PMC01 Pin8? YES Does 2.8V appear at the PMC01 Pin12? YES Check the connector (PMC01) and the Drum Motor Ass'y.
NO
20
AVD-K150B/K150E/K150G/K150N/K150R
(3) When the Capstan Motor doesn't run,
When the Capstan Motor doesn't run,
Does 12VA appear at the PMC01? YES Does 2.8V appear at the PMC01?
NO
Refer to "SMPS(CAPSTAN/12Volt) Trouble Shooting".
NO YES Check the PMC01 and the Capstan Motor Ass'y. YES NO Aren't the foil patterns and Components between IC501 Pin108 and PMC01 Pin9 short? YES NO Does the CFG signal come into the IC501 Pin9? NO YES Does the Capstan PWM signal appear at the IC501 Pin108? NO YES Aren't the foil patterns and Components between IC501 Pin108 and PMC01 Pin9 short? Replace the IC501. Aren't the foil patterns and component between IC501 Pin9 and PMC01 Pin1 short? Check the Capstan Motor Ass'y. Does the CFG signal appear at the PMC01 Pin1? Does the PWM signal appear at the IC501 Pin108?
21
AVD-K150B/K150E/K150G/K150N/K150R
(4) KEY doesn't working
KEY doesn't working.
Is 5V applied to the IC501 Pin36? YES Does LED or FLD change when a function button is pressed?
NO
Refer to "SMPS 5.3VA Trouble Shooting".
NO
Replace the defective switches.
22
AVD-K150B/K150E/K150G/K150N/K150R
4. Y/C CIRCUIT (1) No Video in EE Mode,
No Video in EE Mode
Does the Video signal appear at the IC301 Pin48? YES Is 5V applied to the IC301 Pins18, 24, 42, 55, 72, 91? YES Does the Video signal appear at the IC301 Pin65? YES Does the Video signal appear at the IC501 Pin19? YES Does the Video signal appear at the Emitter terminal of the Q307, Q308?
NO
Check the 24Pin of Tuner.
NO
Check the 5.2VT, 5.3VA Line. (Power Circuit)
NO
Is I2C BUS signal applied to the IC301 Pins68, 69? YES
NO
Check the System Circuit. (Refer to `SYSTEM I2C BUS CHECK Trouble Shooting')
NO
Chck the path of the signal between the IC301 Pin65 and IC501 Pin17.
Check C316. (AGC)
YES
NO
Does the 12VT, 5.3VA NO appear at the Emitter terminal of the Q804, Q308. YES Replace the Q804, Q308.
Replace the IC301.
Check the 12VT, 5.3VA Line. (Power Circuit)
23
AVD-K150B/K150E/K150G/K150N/K150R
3. Y/C CIRCUIT (2) When the Y(Luminance) signal doesn't appear on the screen in PB Mode,
Is 5.2VT, 5.3VA applied to the IC301 Pins24, 42, 55, 72, 91? YES Is the I2C Bus siganl applied NO to the IC301 Pins68, 69 ? YES Does the normal RF signal appear at the IC301 Pin78? NO Is the V.H.S/W signal applied to the IC301 Pin70? YES Is V.H.S/W "H" about 3.4V at the IC301 Pin70? YES YES Clean the Drum. NO Replace the IC301. NO Check the V.H.S/W level. (Check R303, R304) NO Check the System Circuit. (IC501 Pin105) Refer to `SYSTEM I2C BUS CHECK Trouble Shooting'. NO Check the line of the 5.2VT, 5.3VA Line. (Power Circuit)
Does the Y(Luminance) RF NO signal appear at the IC301 Pin76? YES Is the Y(Luminance) Video waveform showed up at theIC301 Pin43? YES Replace the IC301. NO
Check the path of the Y(Luminance) RF signal. (Check the C312)
YES
Check the path of the Y(Luminance) RF signal. (Check C327)
YES
24
AVD-K150B/K150E/K150G/K150N/K150R
3. Y/C CIRCUIT (3) When the C(Color) signal doesn't appear on the screen in PB Mode,
Is 5.2VT/5.3VA applied to the IC301 Pins24, 42, 55, 72, 91. YES Is the Color Rotary signal applied to the IC301 Pin70? YES Is Color Rotary "H" about 3.4V? YES Does the Color signal appear at the IC301 Pin25 ? YES Does the Color signal appear at the IC301 Pin21? YES Replace the IC301. Replace the IC301. NO Check the Color Pass. NO Does the X301(4.43MHZ) oscillate? NO Replace the X301. NO Check the Color Rotary level. (Check the R303) NO Check the Color Rotary Circuit. (IC501 Pin99 ) NO Check the line of the 5.2VT/ 5.3VA Line. (Power Circuit)
25
AVD-K150B/K150E/K150G/K150N/K150R
3. Y/C CIRCUIT (4) When the Video signal doesn't appear on the screen in REC Mode,
NO
Is the EE signal normal? YES Is 5.2VT/5.3VA applied to the IC301 Pins24,42,55,72,91? YES Does PB Mdoe operate normally? YES Does the RF signal appear at the IC301 Pin78? YES
Check EE Mode.
NO
Check the line of the 5.2VT/ 5.3VA Line.(Power Circuit)
NO
Check PB Mode.
NO
Is the REC `H' signal (about 4V) applied to the IC301 Pin80? YES Check REC Luminance Pass & Color Pass.
NO
Check the System of REC `H'. (the IC501 Pin47 / the D301)
YES
Replace the IC301.
Does the REC RF signal appear at the IC301 Pins88,89,94,95? YES Check the Drum & Drum Connector
NO
Check the circuit of the IC301 Pins85, 86.
YES
26
AVD-K150B/K150E/K150G/K150N/K150R
5. Hi-Fi CIRCUIT (A) No Sound(EE Mode)
No Sound. YES Check the TU Audio of IC801 Pins1, 3. NO Check the IC751 Pins30, 31.
Check the DVD Audio of IC801 Pins4, 5.
NO
Check the DVD MODULE. (P8D01 Pins3, 5).
Check the AV1 Audio of IC801 Pins6, 7.
NO
Check the Scart1 Jack. (SC901 Scart1 Audio in Pins2, 6).
Check the AV2 Audio of IC801 Pins8, 9.
NO
Check the Scart2 Jack. (SC901 Scart2 Audio in Pins2, 6).
Check the AV3 Audio of IC801 Pins10, 11.
NO
Check the front Jack. (PM602 Pins3, 5).
YES Check the Vcc of IC801 Pins34, 40, IC802 Pin4. YES Check the IIC Clock and DATA at IC801 Pins42, 43, IC802 Pins32, 33. YES NO Check the Audio of IC801 Pins16, 17. YES NO Check the Audio of IC802 Pins22, 26. YES Replace IC802. Replace IC801. NO Check the IC501 Pins59, 60. NO Check the Power 5.2V, 12VT.
Check the JK801.
27
AVD-K150B/K150E/K150G/K150N/K150R
3. Y/C CIRCUIT (B) Hi-Fi Playback
PB mode YES No Sound. YES Check the Vcc of IC801 (Pins34, 40) YES NO Check Power 5.2V, 12VT.
NO Check the Hi-Fi Selection switch. (IC801 Pin41) and the Tape quality. YES Is the RF Envelope at IC801 Pin44 over 2Vp-p? YES Check IC801 Pin42(Data), Pin43(Clock) YES NO
Check IC501 Pin25 (A.H/SW)
NO
Check the parts of -COM (IC501 Pins59, 60)
NO Do Audio Signals appear at IC801 Pin16(L-CH), 17(R-CH)? YES NO Do Audio Signals appear at IC802 Pin10(L-CH), 16(R-CH)? YES Do Audio Signals appear at NO IC802 Pins22, 26? YES
Check the Connection at P3D01 Pins7, 9.
Check the A.IN line of IC802(C808, C809)
Check the Vcc of IC802 Pin4. YES Replace IC802.
NO
Check Power.
Do Audio Signals appear at JK801?
NO
Check the Jack(JK801)
28
AVD-K150B/K150E/K150G/K150N/K150R
(C)
Hi-Fi REC. YES It is impossible to record Hi-Fi Audio signal. YES Check Vcc of IC801.(Pins34, 40) YES Check IC801 Pin42(Data), Pin43(CLOCK). YES Do Audio signals appear at IC801 Pins16, 17? YES Do FM Audio signals appear at IC801 Pin36? YES Check the Contact Point of Drum Connector if good then Replace the Drum. NO Replace IC801. NO Check Audio input signal of IC801 Pins2, 3(TU.A.), 4, 5(DVD.A.), 6, 7(AVI.A.), 8, 9(AV2.A.), 10, 11(AV3.A.). NO Check ports of -COM. NO Check Power 5V, 12VT.
29
AVD-K150B/K150E/K150G/K150N/K150R
6. Tuner/IF CIRCUIT (A) No Picture on the TV screen
No picture on the TV screen YES Does the Video signal at the TU701 Pin24. YES
NO
Is +33V applied to TU701 Pin16? YES Is +5V applied to TU701 Pin13? YES Does the Clock signal appear at TU701 Pin11? YES Does the data signal appear at TU701 Pin12? YES Replace Tuner.
NO
Check 33V line.
NO
Check 5V line.
NO
Check the lIC Clock Signal of -COM Pin59.
NO
Check the lIC Data Signal of -COM Pin60.
Does Sync appear at IC501 Pin111. YES Does the Video signal at the IC501 Pin19. YES Does the Video signal at the IC301 Pin61. YES Does the Video signal at the IC802 Pin30.
NO
Check the signal flow from TU701 Pin24 to IC301 Pin48.
NO
Check the signal from IC301 Pin65 to IC501 Pin17.
NO
Check the signal from IC501 Pin19 to IC301 Pin56.
NO
Check the signal from IC501 Pin61 to IC802 Pin1.
Check the signal flow from IC802 Pin30 to SC901 Pin19.
30
AVD-K150B/K150E/K150G/K150N/K150R
(B) No Sound
No Sound. YES Check the Vcc of IC751 Pins1, 11, 19, 22, 33. YES Check the Tuner SiF signal at IC751 Pin2. YES Check the oscillator of IC751 Pins5, 6. YES Check the Audio of IC751 Pins30, 31. YES Check the Audio of IC801 Pins2, 3. YES Check the Audio of IC801 Pins16, 17. YES Check the Audio of IC802 Pins22, 26. YES Check the Signal flow from IC802 Pins22, 26, SC901 Pins1, 3. NO Check the signal flow from IC801 Pins16, 17 to IC802 Pins10, 16. NO Check the IIC Clock and Data at IC801 Pins42, 43. NO Check the signal flow from IC751 Pins30, 31 to IC801 Pins2, 3. NO Check the IIC Clock and Data at IC751 Pins12, 13. NO Replace X751 NO Check the Tuner SIF of TU701 Pin22. NO Check 5.2V Line.
31
AVD-K150B/K150E/K150G/K150N/K150R
3-3. DVD & AMP SECTION ELECTRICAL TROUBLESHOOTING GUIDE
1. System operation flow
Power On
1. 8032 initializes SERVO, DSP & RISC registers 2. Write RISC code to SDRAM 3. Reset RISC
Show LOGO
Yes
Tray Closed? No
Tray Close to Closed position
SLED at Inner Side? No
Yes
SLED Moves to Inner Position
1. Judge whether have disc and disc type 2. Jump to related disc reading procedure
Recieve OPEN/ CLOSE Key? No 1. Execute Pressed Key & IR Key 2. Systemoperati on Routi ne Loop
1. Stop Playback & Open Tray 2. Display tray open message & LOGO
No
Receive CLOSE Key?
Yes
32
AVD-K150B/K150E/K150G/K150N/K150R
2. T est & debug flow
TEST
Check the AC Voltage Power PCBA (110V or 220V) Yes
No
Check the POWER PART
Switch on the Power PCBA
Is the DC Voltage outputs OK? (5V, 3.3V, 8V, 12V) Yes
No
Check the POWER PART
Is 3.3V and 2.5V DC outputs normal on main PCBA? Yes
No Check the regulators or diode(D501).
Communication between VCR & DVD is normally? Yes
No
Check the cable connection. (PDV03)
Connect to PC RS232 Cable and update the FLASH memory code.
Update FLASH(IC5A1) successfully? Yes
No
1. Check 27MHz system clock. 2. Check systemreset circuit. 3. Check FLASH R/Wenable signal PRD, RWR. 4. Check RS232 SIGNALS. 5. Check FLASH Memory related circuit.
Replace FLASH( IC5A1) A
33
AVD-K150B/K150E/K150G/K150N/K150R
A
RESET or Power On.
Show LOGO? YES
NO
Flash Memory operates properly? YES SDRAM works properly? YES MT1379 VIDEO outputs properly? YES
NO
Check connection lines between FLASH & MT1379 and the FLASH access time whether is sui table or not.
NO
Check connection lines between SDRAM(IC502,IC503) & MT1379 and the SDRAM is damaged.
NO
Check the related circuit of MT1379. (IC501 PIN 161,166, 168 check)
Have TV signal output? YES Check AV cable connection to TV set .
NO
Check the filtering and amp circuit of TV signal .(IC507)
Does Tray move inside when it is not at closed position?
NO
Normal TROUT & TRIN signals? YES Normal TRCLOSE & TROPEN signal? YES Normal LOAD+ & LOADsignal ? YES
NO
Check the load OPEN & CLOSE switch
YES
NO
Check the Tray control IO pins on MT1376 & MT1379.
NO
Check the Tray control amplifying circuit on Motor driver.(IC402)
B
Check the cable connection between main PCBA and loader. (MECHA)
34
AVD-K150B/K150E/K150G/K150N/K150R
B
Does the SLED move No to inner side when it is at outer position? Yes
Motor Driver STBY Pin is High? Yes
No
Check the connection line of STBY signal . OK
Motor Driver STBY Pin is High? Yes
No
Check the related circuit of FMSO.
SL+ and SL- output properly? Yes
No
Check the amp circuit on motor driver.
Do not put in disc and tray close.
Check the cable connection with MECHA.
Optical Lens has movements for searching Focus? Yes
No
Proper FOSO outputs to motor driver? Yes
No
Check FOSO connection on MT1379 and motor driver.
Proper F+ & F- outputs? Yes
No
Check the amp circuit on motor driver.
C
Check cable connect of the pick-up head.
35
AVD-K150B/K150E/K150G/K150N/K150R
C
Laser turns on when reading disc? Yes
No
LD01 or LD02 output properly? Yes Collector voltage of power transistor is OK? (Q404, Q405) Yes
No
Check the laser power circuit on MT1336 and connecting to power transistor. (Q404, Q405)
No
Check the related circuit on laser power transi stor
Check cable connection between transistor output and pick-up head.
Disc ID is correct? Yes
No
Proper RFL signal on MT1336? Yes
No
Check the related circuit on MT1336 RFL signal .
Check the RFL connection between MT1336 and MT1379.
Does spindle rotate? Yes
No
Proper DMSO signal on MT1379 Yes
No
Check DMSO related circuit on MT1379.
SP+ & SP- output properly? Yes
No
Check the spindle control amp circuit of motor driver.
Check the cable connection between spindle and main PCBA.
D
36
AVD-K150B/K150E/K150G/K150N/K150R
D Yes
Focus ON OK? Yes
No
Proper signals on A, B, C, D of MT1336 Yes
No
Check connections between MT1336 and pick-up head.
Proper FEO signal on MT1336? Yes
No
Check the related circuit on MT1336 FEO sugnal .
Check FEO connection between MT1336 and MT1379
Track On OK?
No
Proper FEO signal on MT1336? Yes
No
Check the related circuit on MT1336
Yes
Properly TRSO signal on MT1379? Yes
No
Check the TRSO connection on MT1379 and motor dirver.
T+ & T- output properly? Yes
No
Check the tracking control amp circuit on motor driver.
Check cable connection on pick-up head.
Disc is play?
No Check RF signal waveform.
Yes
E
37
AVD-K150B/K150E/K150G/K150N/K150R
E
Normal Audio output when disc playback? YES
NO
Audio DAC received correct data stream? YES Normal Audio DAC out? (IC206) YES
NO
Check connection between MT1379 & Audio DAC. (Check ARCK, ALRCK ACKL, ASDAT3)
NO
Check the related circuit of Audio DAC. (Check Audio out Pins 8, 5)
Check Audio filter, amplify, mute circuit. (IC205 Application circuit)?
TEST END
38
AVD-K150B/K150E/K150G/K150N/K150R
3. AUDIO -COM Circuit(DVD & AMP)
POWER ON
Does CD/DVD appear at FLT? YES Does Loading appear at FLD? YES Does no Dise or Time appear at FLD? YES Check if DVD an Audio Micom Insert is OK. YES
NO
Does CD/DVD appear at FLT? YES
NO OK
NO
Does it appear DVD Error at FLD? YES
NO
NO
Check Connector (DVV01) if is normally. YES Check power part of Main B/D. YES
NO Reconnet it.
NO Refer to SMPS.
NO Check Power. YES Check oscillator of X101. YES
NO Refer to oscillator Circuit.
NO Check DVD Module. Check if PN102 is high. YES Check if IC101 Pin53 is high. YES Check if IC101 Pin9, 36, 59 is high(5V). YES Check if IC101 Pin49 is high. YES NO NO NO
Check DVD Reset Waveform.
Check SMPS.
Check IC101 Reset Waveform.
Check 3.3V line.
Check Power dection Circuit.
Replace IC101.
39
AVD-K150B/K150E/K150G/K150N/K150R SECTION 4 MECHANICAL ADJUSTMENTS
· Tools and Fixfures for Service
1. Cassette Torque meter SRK-VHT-303(Not SVC part) 2. Alignment tape (See figure below) 3. Torque gauge 600g.Cm ATG
SR K
-V
HT
-S
300
250 200 150
0 50
VID CAS EO S TOR ETTE Q MET UE VHT ER -303
SR K
K - V H T 0T SR 50 100 150
200
300
250
4. Torque gauge adaptor
5. Post height adjusting driver 6. + Type driver ( 5) Parts No. : SV-TGO-030-000(SMALL) : SV-TGO-030-000(LARGE)
· Alignment Tapes for Adjustment
Derivation No. Mechanism SP/LP 2/4 Head TTV-P2L A A SP 2 Head TTV-P2 BC BC SP/LP/EP 2/4 Head TTV-N1 (TTV-N12) D D SP 2 Head TTV-N2
Adjustment Items FM Envelope Slantness A/C Head
A commecially available tape TTV-P1 (TTV-P1L) TTV-P1 TTV-P2 (TTV-P2L) TTV-N1 (TTV-N12) (TTV-N1E) TTV-N2 TTV-N2 TTV-N2E TTV-N12 TTV-N1 (TTV-N12) TTV-N2
Height
TTV-P1
Azimuth
TTV -P2
X-value
TTV-P2
TTV-N2
RG Post Inclination Tape Back Tension
A commecially available tape SRK-VHT-303
The numbers in ( ) parenthesis can be used as the substiture.
40
AVD-K150B/K150E/K150G/K150N/K150R
1. Mechanism Alignment Position Check
Purpose:To determine if the Mechanism is in the correct position, when a Tape is ejected.
Test Equipment/ Fixture · Blank tape Test Conditions (Mechanism Condition) · Eject Mode (with Cassette ejected) Check Point · Mechanism and Mode Switch Position
1) Turn the Power S/W on and eject the Cassette by pressing the Eject Button. 2) Remove the Top Cover and Plate Assembly Top, visually check if the Gear Cam Hole is aligned with the Chassis Hole as below Fig. C-2. 3) IF not, rotate the Shaft of the Loading Motor to either clockwise or counterclockwise until the alignment is as below Fig. C-2.
4) Remove the Screw which fixes the Deck Mechanism and Main Frame and confirm if the Gear Cam is aligned with the Gear Drive as below Fig. C-1(A). 5) Confirm if the Mode S/W on the Main P.C.Board is aligned as below Fig. C-1(B). 6) Remount the Deck Mechanism on the Main P.C.Board and check each operation.
CHECK DIAGRAM
Gear Cam
Mode S/W
(A)
(B)
Gear Drive Gear Cam (o) and Gear Drive (o) groove alignment
BOTTOM VIEW Fig. C-1
L/D Motor Assembly
Gear Cam (A') (B) (A)
(B') Chassis Hole Gear Cam Hole Gear Drive Hole
TOP VIEW Fig. C-2
41
AVD-K150B/K150E/K150G/K150N/K150R
2. Preparation for Adjustment (To set the Deck Mechanism of the loading state without inserting a cassette tape).
1) 2) 3) 4) Unplug the power cord from the AC outlet. Disassemble the Top Cover and Plate Assembly Top. Plug the power cord into the AC outlet. Turn the power S/W on and push the Lever Stopper of the Holder Assembly CST to the back for loading the
cassette without tape. Cover the holes of the End Sensors at the both sides of the Chassis to prevent a light leak. Then the Deck Mechanism drives to the Stop Mode. In this case, the Deck Mechanism can accept inputs of each mode, however the Rewind and Review operation can not be performed for more than a few seconds because the Take-up Reel Table is in the Stop State and can not be detected the Reel Pulses.
3. Checking Torque
Purpose: To insure smooth transport of the tape during each mode of operation. If the tape transport is abnormal, then check the torque as indicated by the chart below.
Test Equipment/ Fixture
· Torque Gauge(600g/cm ATG) · Torque Gauge Adaptor · Cassette Torque Meter SRK-VHT-303
Test Conditions (Mechanism Condition)
Checking Method
· Play (FF) or Review (REW) Mode · Perform each Deck Mechanism mode without inserting a cassette tape(Refer to above No.2 Preparation for Adjustment). · Read the measurement of the Take-up or Supply Reels on the Cassette Torque Meter(Fig. C-3-2). · Attach the Torque Gauge Adaptor to the Torque Gauge and then read the value of it(Fig. C-3-1). Mode Test Equipment Cassette Torque Gauge Measurement Reel Take-Up Reel Measurement Values More than 400g/cm More than 400g/cm 40~100g/cm 120~210g/cm
Item Fast Forward Torque Rewind Torque Play Take-Up Torque Review Torque
Fast Forward Rewind Play Review
Cassette Torque Gauge Supply Reel Cassette Torque Meter Cassette Torque Meter Take-Up Reel Supply Reel
NOTE:
The values are measured by using a Torque Gauge and Torque Gauge Adaptor with the Torque Gauge affixed.
NOTE:
The torque reading to measure occurs when the tape abruptly changes direction from Fast Forward to Rewind Mode, when quick braking is applied to both Reels.
· Torque Gauge (600g.cm ATG)
· Cassette Torque Meter (SRK-VHT-303)
Torque Gauge
SR K
-V
HT
-S
300
250 200 150
Torque Gauge Adaptor
0 50
VID CAS EO S TOR ETTE Q MET UE ER VHT -303
SR K
K - V H T 0T SR 50 100 150
200
300
250
Reel Table
Fig. C-3-1
Fig. C-3-2
42
AVD-K150B/K150E/K150G/K150N/K150R
4.Guide Roller Height Adjustment
Purpose: To regulate the height of the tape so that the bottom of the tape runs along the tape guide line on the Lower Drum.
4-1. Preliminary Adjustment Test Equipment/ Fixture
· Post Height Adjusting Driver
Test Conditions (Mechanism Condition)
· Play or Review Mode
Adjustment Point
· Guide Roller Height Adjustment screws on the Supply and Take-Up Guide Rollers.
Guide Roller Height Adjustment screw Upper Flange Guide Roller Retaining Screw
Adjustment Procedure
1) Confirm if the tape runs along the tape guide line of the Lower Drum. 2) If the tape runs the bottom of the guide line, turn the Guide Roller Height Adjustment Screw to clockwise direction. 3) If it runs the top, turn to counterclockwise direction. 4) Adjust the height of the Guide Roller to be guided to the guide line of the Lower Drum from the starting and ending point of the Drum.
ADJUSTMENT DIAGRAM
Fig. C-4-1
4-2. Precise Adjustment Test Equipment/Fixture
· Oscilloscope · Alignment Tape · Post Height Adjusting Driver
Test Equipment Connection Points Test Conditions VCR(VCP) State
· CH-1:PB RF Envelope · CH-2:NTSC: SW 30Hz PAL: SW 25Hz · Head Switching Output Point · RF Envelope Output Point · Play an Alignment Tape
Adjustment Point
· Guide Roller Height Adjustment Screws
Waveform Diagrams
P2 POST ADJUSTMENT
Adjustment Procedure
1) Play an Alignment Tape after connecting the probe of the Oscilloscope to the RF Envelope Output Test Point and Head Switching Output Test Point. 2) Tracking Control(in PB Mode) : Center Position(When this adjustment is performed after the Drum Assembly has been replaced, set the Tracking Control so that the RF Output is Maximum). 3) Height Adjustment Screw : Flatten the RF waveform. (Fig. C-4-2) 4) Turn(Move) the Tracking Control(in PB Mode) clockwise and counterclockwise.(Fig. C-4-3) 5) Check that any drop of RF Output is uniform at the start and end of the waveform.
P3 POST ADJUSTMENT
Turn the Roller Guide Height Adjustment Screw slightly to flatten the waveform.
Fig. C-4-2
Tracking Control at center
Turn(Move) the Tracking Control to both directions
Fig. C-4-3 Connection Diagram
OSCILLOSCOPE
NOTE
If the adjustment is excessive or insufficient the tape will jam or fold.
RF ENVELOPE OUTPUT TEST POINT HEAD SWITCHING OUTPUT TEST POINT
43
AVD-K150B/K150E/K150G/K150N/K150R
5. Audio/Control (A/C) Head Adjustment
Purpose: To insure that the tape passes accurately over the Audio and Control Tracks in exact alignment of the both Record and Playback Modes.
5-1. Preliminary Adjustment (Height and Tilt Adjustment) Perform the Preliminary Adjustment, when there is no Audio Output Signal with the Alignment Tape. Test Equipment/ Fixture
· Blank Tape · Screw Driver(+) Type 5mm
Test Conditions (Mechanism Condition)
· Play the blank tape
Adjustment Point
· Tilt Adjustment Screw(C) · Height Adjustment Screw(B) · Azimuth Adjustment Screw(A)
Adjustment Procedure/Diagrams
1) Initially adjust the Base Assembly A/C Head as shown Fig. C-5-1 by using the Height Adjustment Screw(B). 2) Play a blank tape and observe if the tape passes accurately over the A/C Head without tape curling or folding. 3) If folding or curling is occured then adjust the Tilt Adjustment Screw(C) while the tape is running to resemble Fig. C-5-3. 4) Reconfirm the tape path after Playback about 4~5 seconds.
NOTE
Ideal A/C head height occurs when the tape runs between 0.2~0.25mm above the bottom edge of the A/C Head core.
A/C Head P4 Tape
10.9
Tape
0.2~0.25mm
A/C Head Base Fig. C-5-1
X-Value Adjustment Hole
Fig. C-5-3
Fixed Screw
Azimuth Adjustment Screw(A)
Tilt Adjustment Screw(C) Height Adjustment Screw(B)
A/C Head Assembly Fig. C-5-2
44
AVD-K150B/K150E/K150G/K150N/K150R
5-2. Confirm that the tape passes smoothly between the Take-up Guide and Pinch Roller(using a mirror or the naked eye).
1) After completing Step 5-1.(Preliminary Adjustment), check that the tape passes around the Take-up Guide and Pinch Roller without folding or curling at the top or bottom. (1) If folding or curling is observed at the bottom of the Take-up Guide then slowly turn the Tilt Adjustment Screw(C) in the clockwise direction.
(2) If folding or curling is observed at the top of it then slowly turn the Tilt Adjustment Screw(C) in the counterclockwise direction.
NOTE:
Check the RF envelope after adjusting the A/C Head, if the RF waveform differs from Fig. C-5-4, performs Precise Adjustment to flat the RF waveform.
5-3. Precise Adjustment (Azimuth adjustment)
Test Equipment/ Fixture · Oscilloscope · Alignment Tape(SP) · Screw Driver(+) Type 5mm Connection Point · Audio output jack Test Conditions (Mechanism Condition) · Play an Alignment Tape 1kHz, 7kHz Sections Adjustment Point · Azimuth Adjustment Screw(A) · Height Adjustment Screw(B)
Adjustment Procedure
1) Connect the probe of the oscilloscope to Audio Output Jack. 2) Alternately adjust the Azimuth Adjustment Screw(A) and the Tilt Adjustment Screw(C) for maximum output of the 1kHz and 7kHz segments, while maintaining the flattest envelope differential between the two frequencies.
1kHz
7kHz
A:Maximum
B:Maximum
Fig. C-5-4
6. X-Value Adjustment
Purpose: To obtain compatibility with the other VCR(VCP) Models.
Test Equipment/ Fixture · Oscilloscope · Alignment Tape(SP only) · Screw Driver(+) Type 5mm Connection Point · CH-1: PB RF Envelope · CH-2: NTSC: SW 30Hz PAL: SW 25Hz · Head Switching Output Test Point · RF Envelope Output Test Point Test Conditions (Mechanism Condition) · Play an Alignment Tape
Left
Adjustment Point
Groove at the Base A/C
Right
Adjustment Procedure
1) Release the Automatic Tracking to run long enough for tracking to complete it's cycle. 2) Loosen the Fixed Mounting Screw and move the Base Assembly A/C Head in the direction as shown in the diagram to find the center of the peak that allows for the maximum waveform envelope. This method should allow the 31m Head to be centrally located over the 58m tape track. 3) Tighten the Base Assembly A/C Head mounting Screw.
Adjustment Diagram
X-Value Adjustment Hole
Fixed Screw
Azimuth Adjustment Screw(A) Tilt Adjustment Screw(C) Height Adjustment Screw(B)
OSCILLOSCOPE
Connection Diagram
RF ENVELOPE OUTPUT TEST POINT
CH-1 CH-2
HEAD SWITCHING OUTPUT TEST POINT
45
AVD-K150B/K150E/K150G/K150N/K150R
7. Adjustment after Replacing Drum Assembly (Video Heads)
Purpose: To correct for shift in the Roller Guide and X value after replacing the Drum.
Test Equipment/ Fixture Connection Point Test Conditions (Mechanism Condition) Adjustment Points · Guide Roller Precise Adjustment · Switching Point · Tracking Preset · X-Value
· CH-1: PB RF Envelope · Oscilloscope · Play the Blank Tape · CH-2: NTSC: SW 30Hz · Alignment Tapes · Play an Alignment Tape PAL: SW 25Hz · Blank Tape · Post Height Adjusting Driver · Head Switching Output Test Point · Screw Driver(+) Type 5mm · RF Envelope Output Test Point
Checking/Adjustment Procedure
Connection Diagram
OSCILLOSCOPE
Play a blank tape and check for tape curling or creasing around the Roller Guide. If there is a problem then follow the procedure RF ENVELOPE OUTPUT TEST POINT 4. "Guide Roller Height" and 5. "Audio Control(A/C) Head HEAD SWITCHING OUTPUT TEST Adjustment".
POINT
CH1 CH2
Waveform
V1/V MAX 0.7 V2/V MAX 0.8 RF ENVELOPE OUTPUT
V1 V V2
Fig. C-7
8. Check the Tape Travel after Reassembling Deck Assembly.
8-1. Checking Audio and RF Locking Time during playback and after CUE or REV (FF/REW)
Test Equipment/ Fixture · Oscilloscope · Alignment Tapes(with 6H 3KHz Color Bar Signal) · Stop Watch Specification · RF Locking Time: Less than 5 sec. · Audio Locking Time:Less than 10sec Test Equipment Connection Points Connection Points · CH-1: PB RF Envelope · CH-2: Audio Output · RF Envelope Output Point · Audio Output Jack Test Conditions (Mechanism Condition) · Play an Alignment Tape (with 6H 3kHz Color Bar Signal)
Checking Procedure
Play an Alignment Tape then change the operating mode to CUE or REV and confirm if the unit meets the above listed specifications.
NOTES:
1) CUE is the forward search mode (FF) 2) REV is the backward search mode (REW) 3) Refer to the Play mede
8-2. Checking for tape curling or jamming
Test Equipment/ Fixture · T-160 Tape · T-120 Tape Specification Test Conditions (Mechanism Condition) VCR(VCP) State
· Be sure there is no tape jamming or curling at · Run the CUE, REV, Play mode at the the begining, middle or end of the tape. beginning and the end of the tape.
Checking Procedure
1) Confirm that the tape runs smoothly around the roller guides, Drum and A/C Head Assemblies while abruptly changing operating modes from Play to CUE or REV. This is to be checked at the begining, middle and end sections of the tape. 2) Confirm that the tape passes over the A/C Head Assembly as indicated by proper audio reproduction and proper tape counter performance.
46
AVD-K150B/K150E/K150G/K150N/K150R
1. Check before starting repairs
The following faults can be remedied by cleaning and oiling. Check the needed lubrication and the conditions of cleanliness in the unit. Check with the customer to find out how often the unit is used, and then determine that the unit is ready for inspection and maintenance. Check the following parts.
Phenomenon Inspection Replacement a a a a a a
A/C Head Pinch Roller F/E Head
Color beats
Dirt on Full-Erase Head
Poor S/N, no color Vertical or Horizontal jitter Low volume, Sound distorted Tape does not run. Tape is slack In Review and Unloading (off mode), the tape is rolled up loosely.
Dirt on Video Head Dirt on Video Head Dirt on tape transport system Dirt on Audio/Control Head
Video Head
Fig. C-9-1 Top View
Dirt on Pinch Roller Clutch Assembly D35 torque reduced Cleaning Drum and transport system
Belt Capston
Clutch Assembly D35
Fig. C-9-3
NOTE
If locations marked with a do not operate normally after cleaning, check for wear and replace. See the EXPLODED VIEWS at the end of this manual as well as the above illustrations and see the Greasing (Page 45, 46) for the sections to be lubricated and greased.
Fig. C-9-2 Bottom View
* No. (1)~(12) Indicates the Tape Path to be traveled from Supply Reel to Take-up Reel.
(3) F/E Head (6) Base Assembly P3 (7) A/C Head (8) P4 Post (5) Drum Assembly (Video Head) (4) Base Assembly P2 (2) Tension Post (1) Supply Reel (12) Take-up Reel (10) Pinch Roller (11) Take-up Guide Post
(9) Capstan Shaft
Fig. C-9-3 Tape Transport System
47
AVD-K150B/K150E/K150G/K150N/K150R
2. Required Maintenance
The recording density of a VCR(VCP) is much higher than that of an audio tape recorder. VCR(VCP) components must be very precise, at tolerances of 1/1000mm, to ensure compatibility with the other VCRs. If any of these components are worn or dirty, the symptoms will be the same as if the part is defective. To ensure a good picture, periodic inspection and maintenance, including replacement of worn out parts and lubrication, is necessary.
4. Supplies Required for Inspection and Maintence
(1) (2) (3) (4) Grease : Kanto G-311G (Blue) or equivalent Isopropyl Alcohol or equivalent Cleaning Patches Grease : Kanto G-381(Yellow)
5. Maintenance Procedure
5-1) Cleaning
(1) Cleaning video head First use a cleaning tape. If the dirt on the head is too stubborn to remove by tape, use the cleaning patch. Coat the cleaning patch with Isopropyl Alcohol. Touch the cleaning patch to the head tip and gently turn the head(rotating cylinder) right and left. (Do not move the cleaning patch vertically. Make sure that only the buckskin on the cleaning patch comes into contact with the head. Otherwise, the head may be damaged.) Thoroughly dry the head. Then run the test tape. If lsopropyl Alcohol remains on the video head, the tape may be damaged when it comes into contact with the head surface. (2) Clean the tape transport system and drive system, etc, by wiping with a cleaning patch wetted with Isopropyl Alcohol.
3. Scheduled Maintenance
Schedules for maintenance and inspection are not fixed because they vary greatly according to the way in which the customer uses the VCR(VCP), and the environment in which the VCR(VCP) is used. But, in general home use, a good picture will be maintained if inspection and maintenance is made every 1,000 hours. The table below shows the relation between time used and inspection period. Table 1
When inspection is necessary Average hours used per day One hour About 1 year About 18 months About 3 years
NOTES:
1 It is the tape transport system which comes into contact with the running tape. The drive system consists of those parts which moves the tape. 2 Make sure that during cleaning you do not touch the tape transport system with excessive force that would cause deformation or damage to the system.
Two hours
Three hours
Drum (Rotating Cylinder)
Cleaning Patch Head Tip Touch this section of cleaning patch to the head tip and gently turn the Drum (Rotating Cylinder)
Coat With Isopropyl Alcohol
Fig. C-9-4
48
AVD-K150B/K150E/K150G/K150N/K150R
5-2) Greasing
(1) Greasing guidelines Apply grease, with a cleaning patch. Do not use excessive grease. It may come into contact with the tape transport or drive system. Wipe excessive grease and clean with cleaning patch wetted in Isopropyl Alcohol.
(2) Periodic greasing Grease specified locations every 5,000 hours.
1) 2) 3) 4) 5) Loading Path Inside & Top side Base Assembly P2,P3 stopper Shaft Shaft Clutch Assembly D35 Shaft 6) Plate Slider Guide Sections 7) Plate Slider Guide Sections 8) Gear Assembly P2, P2 Rubbing Sections
NOTE:Greasing Points
1) Loading Path Inside & Top side 2) Base Assembly P2, P3 stopper 3) Shaft 4) L/D Motor Gear Wheel Part 5) Arm Take-up Rubbing Sections 6)Reel S,T shaft(G381:Yellow) 7) Arm Assembly F/L Rotating Sections
2
1 2 3 4 1 3 8
4
5
6
7 5
Slider Guide
Slider Guide
Chassis (Bottom)
7 6 7
Chassis (Top)
Gear Part
Gear Sector
Gear Cam
Gear Rack F/L
Base Loading
Gear Drive
Guide Rail
Chassis (Left Side)
Chassis (Right Side)
Plate Slider
49
AVD-K150B/K150E/K150G/K150N/K150R
Lever, F/R, Base, Tension
GEAR AY, P2 & P3
Lever, F/R
Base, Tension
Boss
Cam
Clutch (G-754. Yellow) Arm Tension Guide Hole
50
AVD-K150B/K150E/K150G/K150N/K150R
SECTION 5 DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)
· Circuit Boards Location
DVD & AMP board
SMPS board
For schematic diagrams. Note: · All capacitors are in F unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. · f : internal component. · C : panel designation. For printed wiring boards. Note: · X : parts extracted from the component side. a : Through hole. · · b : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. · Indication of transistor. Caution: Pattern face side: (Conductor Side) Parts face side: (Component Side)
Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.
KEY board
DISPLAY board VCR board
C Q These are omitted
BC E These are omitted
B E
· A : B+ Line. · B : B Line. · Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. · Voltages and waveforms are dc with respect to ground in service mode. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. no mark : STOP · Circled numbers refer to waveforms. · Signal path. F : AUDIO J : CD c : DVD d : TUNER L : VIDEO E :Y a : CHROMA q : R, G, B
· Abbreviation AED : North European model RU : Russian model
AVD-K150B/K150E/K150G/K150N/K150R
51
51
AVD-K150B/K150E/K150G/K150N/K150R
5-1. BLOCK DIAGRAM DVD (OVERALL) SECTION
DISC
DV33 SD33 SD33
SPINDLE MOTOR
M
PICK UP
DVD:RF0,A,B,C,D CD:RF0,A,B,C,D,E,F MDI1 LD01,LD02, IOA, V2.0
IC5A1 SDRAM
IC502 HY57V161610DTC-7 SDRAM
IC503 HY57V161610DTC-7 SDRAM
APC
AVD-K150B/K150E/K150G/K150N/K150R
DECK MECHANISM
SLED LOADING (FEEDING) MOTOR MOTOR
Jc
A[00:19] PCE# AD[0:7] PRD# PWR#
Signal Path K : AUDIO J : CD c : DVD E :Y a : CHROMA
DQM[2:3]
DQM[0:1]
DQ[00:15]
DQ[16:31]
M
M
MA[00:10] BA0 DCLK DCKE CS# RAS# CAS# WE# TXD RXD
AV33/DV33/V25
DV33 J501 RS232 DV33
SCL
F+,F-,T+,T-
SP+,SP-
SL+,SL-
VCC/+8V
AC 90V~240V 50HZ/60Hz
LOAD+,LOADRFON,RFOP,FEO,RFL,CSO TEO,BDO,RFRP,HTRC,V2P8
RVCC
LIMIT
SDA
TROUT,TRIN SCLK,SDEN,SDATA PWMOUT2
STBY,TRCLOSE
Jc
IC505 S524A40X21-SCTO DAC
V1P4
<
IC402 LA6560 MOTOR CONT
IC401 MT1336E RF & SERVO IC501 (1/2) MT1379DEC MPEG & VIDEO
ACLK ABCLK ALRCK
REG_5VA
TROPEN,TRSO,FOSO,DMSO,FMSO
ADIN
IC206 CS4334 DAC
Y[1:6]
DVD_ENA DVD_CLK DVD_DATA_IN 27MHz X-TAL ASDAT3 L/R
DVD_ESET
PWRCTL
ASPECT
VF+
DVD_DATA_OUT
K
VF-
Ea
-27VA
VCC
5V2A
5V
VCC
IC505 RESET IC
VCC
+9V
RVCC
AVCC
VCR
POWER BOARD
12V DV33
+12V
RC601 REMOCON RECEIVER
IC507 MM1623XFBE BUFFER
CVBS
Pr/R Y/G Pb/B Y C
IC205 4560M AMP
L/R
AV33
3V3M
E E E
V25
K
+P8V
Ea
KEY Input
SYS
52
52
AVD-K150B/K150E/K150G/K150N/K150R
5-2. BLOCK DIAGRAM DVD (AMP) SECTION
12.288MHz 3.3V 5V SDA SCL RESET 505_PDN 505_TH_WAR IC301 PS9702B PWM CONT
26 22 60 25
2,3/8,9 REAR R 53/54 70/71 67/68 63/64 60/61 92 80 FRONT L REAR L CENTER
IC710 29/30 STA505 DIGITAL AMP
10,11/16,17
K K
S/WOOFER
K
K
Speaker jack IC101 LC875747B-52AS SYSTEM CONTROLLER
FRONT R+-
SURROUND R+-
2,3/8,9
CENTER 3
ABCK ALRCK AMCLK
K
WOOFER
K
CLK
IC750 2,3/8,9 STA505 31/32 DIGITAL AMP 2.5V
DI
ADATA 0, 1, 2
20 32V 19 19 7 8 9 10
IC501 (2/2) MT1379DEC MPEG & VIDEO
180 183 184 181 AMCLK ALRCK ABCK ADATA 3
18 17 16 14
DO INT0 INT1
15
RST
K
7 36
CS
30
7
5
d d
12.288MHz 4.5~5.5V
. Signal Path
K d
IC104 NJM4560M AMP
7
1
K
Tuner or radio tuner
AVD-K150B/K150E/K150G/K150N/K150R
53
53
d
: AUDIO : TUNER
L R
d
6
2
K
Analog_L Analog_R
K K
K K
K
SURROUND L+-
K
FRONT L+IC102 KIA703IP +5V REG 33
IC730 31/32 STA505 29/30 DIGITAL AMP 1231_CTRL
10,11/16,17
2,3,8,9/ 10,11, 16,17 31,32/ 29.30
IC770 STA505 DIGITAL AMP
K K
56/57 79
31/32
FRONT R
RESET
IC103 KIA703IP +5V REG
K
PWRSNS
32 43 42 41 23 52
34
44 43 41
SPDIF
IC202 AK4586VQ CODEC
31 32 33 Analog_L 1 Analog_R
IC204 NJM4580M AMP 2
IC203 MM1231XFBE SELECTOR 7 11 8 9 14
AVD-K150B/K150E/K150G/K150N/K150R
5-3. BLOCK DIAGRAM VCR/PANEL SECTION
DVD
VCR DATA IN
LD(+) LD(-)
OTPB LED 'H'
VCR DATA OUT DVD CLK
DAV
CANAL DET 'H'
L/M CONTROL R525, R526
R/C IN(2W)
IC501 HD6432197SA SYSTEM CONTROLLER
NC
FLDRIVER
CST SW
BUFFER
IC601 uPD16315 IC506 MM74HCT244
A.ENV
2fsc R524, R514, R518, R516, R589, C577, C576, L501, Q504
AVD-K150B/K150E/K150G/K150N/K150R
54
54
AVD-K150B/K150E/K150G/K150N/K150R
5-4. BLOCK DIAGRAM VCR (Y/C) SECTION
(PB MODE)
REC'H' V.H.SW C.ROTARY DATA V.OUT (MICOM) S2 V.OUT S1 V.OUT CLOCK V.OUT MICOM C SYNC V.IN4 FRONT V.IN3 DEC
(REC MODE)
V.H.SW
C.ROTAR