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SERVICE MANUAL
Sec. 1: Main Section
I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA's
Sec. 2: Deck Mechanism Section
I Standard Maintenance I Alignment for Mechanism I Disassembly/Assembly of Mechanism I Alignment Procedures of Mechanism
Sec. 3: Exploded views and Parts List Section
I Exploded views I Parts List
DVD PLAYER & VIDEO CASSETTE RECORDER
H9531ED
PAL
MAIN SECTION
DVD PLAYER & VIDEO CASSETTE RECORDER
H9531ED
Sec. 1: Main Section
I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA's
TABLE OF CONTENTS
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1 Laser Beam Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2-1 Important Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-1 Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1 Preparation for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1 Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1 Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1 FIRMWARE Renewal Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1 Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1 Schematic Diagrams / CBA's and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1 Wiring Diagram < VCR Section > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1 Wiring Diagram < DVD Section >. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-3 IC Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1 Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarks of Dolby Laboratories.
SPECIFICATIONS
< VCR Section >
Description 1. Video 1-1. Video Output (PB) 1-2. Video Output (R/P) 1-3. Video S/N Y (R/P) 1-4. Video Color S/N AM (R/P) 1-5. Video Color S/N PM (R/P) 1-6. Resolution (PB) 2. Servo 2-1. Jitter Low 2-2. Wow & Flutter 3. Normal Audio 3-1. Output (PB) 3-2. Output (R/P) 3-3. S/N (R/P) 3-4. Distortion (R/P) 3-5. Freq. resp (R/P) at 200Hz (-20dB ref. 1kHz) at 8kHz 4. Tuner 4-1. Video output 4-2. Video S/N 4-3. Audio output 4-4. Audio S/N 5. Hi-Fi Audio 5-1. Output 5-2. Dynamic Range 5-3. Freq. resp (6dB B.W) dBV dB Hz -12 70 -9 85 20 ~ 20K -4 SP Mode SP Mode SP Mode Vp-p dB dB dB 0.8 39 -10 40 1.0 44 -6 46 -2 1.2 E-E Mode E-E Mode E-E Mode E-E Mode dBV dBV dB % dB dB -6 -8 -9 -9 36 -4 -4 41 1.0 -2 -2 4.0 -3 -1.5 SP Mode SP Mode SP Mode SP Mode SP Mode SP Mode µsec % 0.07 0.3 0.12 0.5 SP Mode SP Mode Vp-p Vp-p dB dB dB Line 0.8 0.8 40 37 30 230 1.0 1.0 45 41 36 245 1.2 1.2 SP Mode, W/O Burst SP Mode SP Mode SP Mode SP Mode Unit Minimum Nominal Maximum Remark
Note: Nominal specs represent the design specs. All units should be able to approximate these some will exceed and some may drop slightly below these specs. Limit specs represent the absolute worst condition that still might be considered acceptable; In no case should a unit fail to meet limit specs.
1-1-1
H9531SP
< DVD Section >
ITEM 1. Video Output 2. Coaxial Digital Out 3. Audio (PCM) 3-1. Output Level 3-2. S/N 3-3. Freq. Response DVD CD 3-4. THD+N DVD CD 1 kHz 0dB 1 kHz 0dB % % 0.02 0.03 fs=48kHz 20~20kHz fs=44.1kHz 20~20 kHz dB dB ± 0.5 ± 0.5 1kHz 0dB Vrms dB 2.0 100 CONDITIONS 75 ohm load 75 ohm load UNIT Vpp mVpp NOMINAL 1.0 500 LIMIT ± 0.1 ± 100
NOTES: 1. All Items are measured without pre-emphasis unless otherwise specified. 2. Power supply : AC230 V 60 Hz 3. Load imp. : 100 K ohm 4. Room ambient : 5 °C ~ 40 °C
1-1-2
H9531SP
LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin.
The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 30cm away from the pickup lens when the diode is turned on. Do not look directly at the laser beam.
Caution: Use of controls and adjustments, or doing procedures other than those specified herein, may result in hazardous radiation exposure.
Drive Mecha Assembly
Laser Beam Radiation
Laser Pickup Turntable
1-2-1
DVD_LASER
IMPORTANT SAFETY PRECAUTIONS
Product Safety Notice
Some electrical and mechanical parts have special safety-related characteristics which are often not evident from visual inspection, nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage, wattage, etc. Parts that have special safety characteristics are identified by a ! on schematics and in parts lists. Use of a substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire, and/or other hazards. The Product's Safety is under review continuously and new instructions are issued whenever appropriate. Prior to shipment from the factory, our products are carefully inspected to confirm with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced. I. Also check areas surrounding repaired locations. J. Be careful that foreign objects (screws, solder droplets, etc.) do not remain inside the set. K. Crimp type wire connector The power transformer uses crimp type connectors which connect the power cord and the primary side of the transformer. When replacing the transformer, follow these steps carefully and precisely to prevent shock hazards. Replacement procedure 1)Remove the old connector by cutting the wires at a point close to the connector. Important: Do not re-use a connector. (Discard it.) 2)Strip about 15 mm of the insulation from the ends of the wires. If the wires are stranded, twist the strands to avoid frayed conductors. 3)Align the lengths of the wires to be connected. Insert the wires fully into the connector. 4)Use a crimping tool to crimp the metal sleeve at its center. Be sure to crimp fully to the complete closure of the tool. L. When connecting or disconnecting the internal connectors, first, disconnect the AC plug from the AC outlet.
Precautions during Servicing
A. Parts identified by the ! symbol are critical for safety. Replace only with part number specified. B. In addition to safety, other parts and assemblies are specified for conformance with regulations applying to spurious radiation. These must also be replaced only with specified replacements. Examples: RF converters, RF cables, noise blocking capacitors, and noise blocking filters, etc. C. Use specified internal wiring. Note especially: 1)Wires covered with PVC tubing 2)Double insulated wires 3)High voltage leads D. Use specified insulating materials for hazardous live parts. Note especially: 1)Insulation tape 2)PVC tubing 3)Spacers 4)Insulators for transistors E. When replacing AC primary side components (transformers, power cord, etc.), wrap ends of wires securely about the terminals before soldering. F. Observe that the wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.). G. Check that replaced wires do not contact sharp edges or pointed parts. H. When a power cord has been replaced, check that 5 - 6 kg of force in any direction will not loosen it.
1-3-1
DVD_SFNP
Safety Check after Servicing
Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and wires have been returned to their original positions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety standards.
Chassis or Secondary Conductor Primary Circuit Terminals d' d
1. Clearance Distance
When replacing primary circuit components, confirm specified clearance distance (d) and (d') between soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1) Table 1 : Ratings for selected area AC Line Voltage 230 V Clearance Distance (d) (d')
3 mm(d) 6 mm(d')
Exposed Accessible Part
Fig. 1
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
2. Leakage Current Test
Confirm the specified (or lower) leakage current between B (earth ground, power cord plug prongs) and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.) is lower than or equal to the specified value in the table below. Measuring Method (Power ON) : Insert load Z between B (earth ground, power cord plug prongs) and exposed accessible parts. Use an AC voltmeter to measure across the terminals of load Z. See Fig. 2 and the following table.
Z
AC Voltmeter (High Impedance)
B
One side of Power Cord Plug Prongs
Fig. 2
Table 2: Leakage current ratings for selected areas AC Line Voltage Load Z 2k RES. Connected in parallel 50k RES. Connected in parallel Leakage Current (i) i0.7mA AC Peak i2mA DC i0.7mA AC Peak i2mA DC One side of power cord plug prongs (B) to: RF or Antenna terminals A/V Input, Output
230 V
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
1-3-2
DVD_SFNP
STANDARD NOTES FOR SERVICING
Circuit Board Indications
a. The output pin of the 3 pin Regulator ICs is indicated as shown.
Top View Out In Input Bottom View
Pb Free Solder (PbF)
When soldering, be sure to use the Pb free solder.
How to Remove / Install Flat Pack-IC
1. Removal
With Hot-Air Flat Pack-IC Desoldering Machine:. (1) Prepare the hot-air flat pack-IC desoldering machine, then apply hot air to the Flat Pack-IC (about 5 to 6 seconds). (Fig. S-1-1)
b. For other ICs, pin 1 and every fifth pin are indicated as shown.
5 Pin 1
10
Fig. S-1-1
c. The 1st pin of every male connector is indicated as shown.
Pin 1
(2) Remove the flat pack-IC with tweezers while applying the hot air. (3) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) (4) Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)
Instructions for Connectors
1. When you connect or disconnect the FFC (Flexible Foil Connector) cable, be sure to first disconnect the AC cord. 2. FFC (Flexible Foil Connector) cable should be inserted parallel into the connector, not at an angle.
Caution:
1. The Flat Pack-IC shape may differ by models. Use an appropriate hot-air flat pack-IC desoldering machine, whose shape matches that of the Flat Pack-IC. 2. Do not supply hot air to the chip parts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put masking tape around the flat pack-IC to protect other parts from damage. (Fig. S-1-2)
FFC Cable
Connector CBA
* Be careful to avoid a short circuit.
1-4-1
DVD_NOTE
3. The flat pack-IC on the CBA is affixed with glue, so be careful not to break or damage the foil of each pin or the solder lands under the IC when removing it.
Hot-air Flat Pack-IC Desoldering Machine CBA
With Soldering Iron: (1) Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3)
Flat Pack-IC Desoldering Braid
Masking Tape Tweezers
Flat Pack-IC
Soldering Iron
Fig. S-1-2
Fig. S-1-3 (2) Lift each lead of the flat pack-IC upward one by one, using a sharp pin or wire to which solder will not adhere (iron wire). When heating the pins, use a fine tip soldering iron or a hot air desoldering machine. (Fig. S-1-4)
Sharp Pin Fine Tip Soldering Iron
Fig. S-1-4 (3) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) (4) Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6) With Iron Wire: (1) Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3) (2) Affix the wire to a workbench or solid mounting point, as shown in Fig. S-1-5. (3) While heating the pins using a fine tip soldering iron or hot air blower, pull up the wire as the solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5
1-4-2
DVD_NOTE
(4) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) (5) Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6) Note: When using a soldering iron, care must be taken to ensure that the flat pack-IC is not being held by glue. When the flat pack-IC is removed from the CBA, handle it gently because it may be damaged if force is applied.
Hot Air Blower
2. Installation
(1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA so you can install a replacement flat pack-IC more easily. (2) The "I" mark on the flat pack-IC indicates pin 1. (See Fig. S-1-7.) Be sure this mark matches the 1 on the PCB when positioning for installation. Then presolder the four corners of the flat pack-IC. (See Fig. S-1-8.) (3) Solder all pins of the flat pack-IC. Be sure that none of the pins have solder bridges.
Example :
or
Iron Wire
Pin 1 of the Flat Pack-IC is indicated by a " " mark.
Soldering Iron To Solid Mounting Point
Presolder
Fig. S-1-7
Fig. S-1-5
CBA
Fine Tip Soldering Iron
Flat Pack-IC CBA
Fig. S-1-8
Flat Pack-IC Tweezers
Fig. S-1-6
1-4-3
DVD_NOTE
Instructions for Handling Semi-conductors
Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1M) that is properly grounded to remove any static electricity that may be charged on the body.
2. Ground for Workbench
(1) Be sure to place a conductive sheet or copper plate with proper grounding (1M) on the workbench or other surface, where the semi-conductors are to be placed. Because the static electricity charge on clothing will not escape through the body grounding band, be careful to avoid contacting semi-conductors with your clothing. < Incorrect >
CBA
< Correct >
Grounding Band
1M
CBA
1M Conductive Sheet or Copper Plate
1-4-4
DVD_NOTE
PREPARATION FOR SERVICING
How to Enter the Service Mode
About Optical Sensors Caution: An optical sensor system is used for the Tape Start and End Sensors on this equipment. Carefully read and follow the instructions below. Otherwise the unit may operate erratically. What to do for preparation Insert a tape into the Deck Mechanism Assembly and press the PLAY button. The tape will be loaded into the Deck Mechanism Assembly. Make sure the power is on, connect TP501 (SENSOR INHIBITION) to GND. This will stop the function of Tape Start Sensor, Tape End Sensor and Reel Sensors. (If these TPs are connected before plugging in the unit, the function of the sensors will stay valid.) See Fig. 1. Note: Because the Tape End Sensors are inactive, do not run a tape all the way to the start or the end of the tape to avoid tape damage.
Q503
Q504 TP501 S-INH
Fig. 1
1-5-1
H9500PFS
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart
This flowchart indicates the disassembly steps to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route, and dress the cables as they were originally.
[1] Top Cover
ID/ LOC. No. [8] [9] [10] [11]
REMOVAL PART REMOVE/*UNHOOK/ Fig. UNLOCK/RELEASE/ Note No. UNPLUG/DESOLDER D6 3(S-9) ---------5(S-10), 2(S-11), 2(S-11A) Desolder, (S-12), (S-12A) ---------Desolder 4,5 -
PCB Bracket VCR Chassis Unit Deck Assembly DVD OPEN/ CLOSE CBA Function CBA Jack CBA Deck Pedestal Side Bracket
Rear Panel D6 D7 D8
[2] Front Assembly [17] Side Bracket [5] DVD Main CBA [13] DVD OPEN/ CLOSE CBA [12] Main CBA
[3] Top Bracket
[9] Rear Panel
[12]
[4] DVD Mecha Assembly [6] Rear Unit [8] PCB Bracket
Main CBA D8 D8
[13]
[7] Power Supply CBA [11] Deck Assembly [16] Deck Pedestal
[14] [15] [16]
D8 D8 D9 D9
Desolder Desolder 7(S-13) (S-14)
-
[10] VCR Chassis Unit
[14] Function CBA
[15] Jack CBA
[17]
2. Disassembly Method
ID/ LOC. No. [1] [2] [3] [4] REMOVAL PART REMOVE/*UNHOOK/ Fig. UNLOCK/RELEASE/ Note No. UNPLUG/DESOLDER 7(S-1) (S-2), *7(L-1) 2(S-3), 2(S-3A) 3(S-4), *CN302, *CN401, *CN601 1 1-1 1-2 2 2-1 2-2 2-3 3 -
(1)
(2)
(3)
(4)
(5)
Top Cover D1 Front Assembly Top Bracket DVD Mecha Assembly D2 D2 D3
Note: (1): Identification (location) No. of parts in the figures (2): Name of the part (3): Figure Number for reference (4): Identification of parts to be removed, unhooked, unlocked, released, unplugged, unclamped, or desoldered. P=Spring, L=Locking Tab, S=Screw, CN=Connector *=Unhook, Unlock, Release, Unplug, or Desolder e.g. 2(S-2) = two Screws (S-2), 2(L-2) = two Locking Tabs (L-2) (5): Refer to "Reference Notes."
[5]
DVD Main D4 CBA
2(S-5), *CN201, *CN301 4(S-6), 4(S-7), *CN003 2(S-8), 2(S-8A)
[6] [7]
Rear Unit Power Supply CBA
D5 D6
1-6-1
H9531DC
Reference Notes
CAUTION 1: Locking Tabs (L-1) are fragile. Be careful not to break them. 1-1. Remove Screw (S-2). 1-2. Release seven Locking Tabs (L-1) (to do this, first release five Locking Tabs (A) at the side and top, and then release two Locking Tabs (B) at the bottom.) CAUTION 2: Electrostatic breakdown of the laser diode in the optical system block may occur as a potential difference caused by electrostatic charge accumulated on cloth, human body etc., during unpacking or repair work. To avoid damage of pickup follow next procedures. 2-1. Slide the pickup unit as shown in Fig. D4. 2-2. Short the three short lands of FPC cable with solder before removing the FFC cable (CN201) from it. If you disconnect the FFC cable (CN201), the laser diode of pickup will be destroyed. (Fig. D4) 2-3. Disconnect Connector (CN301). Remove two Screws (S-5) and lift the DVD Main CBA. (Fig. D4) CAUTION 3: When reassembling, confirm the FFC cable (CN301) is connected completely. Then remove the solder from the three short lands of FPC cable. (Fig. D4) CAUTION 4: When reassembling, solder wire jumpers as shown in Fig. D8. CAUTION 5: Before installing the Deck Assembly, be sure to place the pin of LD-SW on Main CBA as shown in Fig. D8. Then, install the Deck Assembly while aligning the hole of Cam Gear with the pin of LD-SW, the shaft of Cam Gear with the hole of LD-SW as shown in Fig. D8.
CN401 (S-4)
(S-3) (S-3A) [3] Top Bracket
(S-3A) (L-1) (A) (L-1)
(A) (L-1) (S-2) (B) [2] Front Assembly (A)
Fig. D2
CN601 CN302
(S-4) (S-4)
[4] DVD Mecha Assembly
[1] Top Cover (S-1) (S-1)
Fig. D3
(S-1)
Fig. D1
1-6-2
H9531DC
(S-5)
CN201
(S-5) [5] DVD Main CBA
(S-8A)
(S-9)
CN301
[9] Rear Panel (S-8)
[8] PCB Bracket [7] Power Supply CBA
DVD Mecha
(S-8) (S-8A)
Fig. D6
A B Slide Short the three short lands by soldering
(S-11) (S-10)
(S-10) (S-11) (S-10)
(S-11A)
Pickup Unit
View for A
View for B
[10] VCR Chassis Unit (S-11A)
Fig. D4
[6] Rear Unit
(S-7) (S-6) (S-7)
Fig. D7
CN003 (S-7)
Fig. D5
1-6-3
H9531DC
FE Head [11] Deck Assembly
Cylinder Assembly ACE Head Assembly
Pin
SW507 LD-SW
Desolder Lead with blue stripe
[15] Jack CBA
[11] Deck Assembly
[12] Main CBA Cam Gear
Shaft Hole LD-SW
Hole
Pin [12] Main CBA
[13] DVD OPEN/ CLOSE CBA (S-12) [12] Main CBA [14] Function CBA (S-12A)
Lead with blue stripe Desolder from bottom Desolder Lead with blue stripe
From ACE Head Assembly
Lead with blue stripe
From Cylinder Assembly
From FE Head
Lead with white stripe Printing side Desolder From Capstan Motor Assembly
Desolder
BOTTOM VIEW Lead connections of Deck Assembly and Main CBA
Fig. D8 1-6-4 H9531DC
[16] Deck Pedestal
(S-13)
(S-13) (S-14)
[17] Side Bracket
Fig. D9
To Remove the Disc Manually
1. Remove the Top Cover. 2. Rotate this roulette in the direction of the arrow as shown below.
Top Cover 1 DVD Mecha Tray Deck Assembly
Rotate this roulette in the direction of the arrow
3 2 2
1-6-5
H9531DC
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note: "CBA" is an abbreviation for "Circuit Board Assembly." NOTE: 1.Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to do these adjustments only after all repairs and replacements have been completed. Also, do not attempt these adjustments unless the proper equipment is available. 2.To perform these alignment / confirmation procedures, make sure that the tracking control is set in the center position: Press either "CHANNEL L5? " or "CHANNEL K" button on the front panel first, then the "PLAY" button on the front panel. Figure 1
EXT. Syncronize Trigger Point
CH1 CH2 0.5H 1.0H 6.5H±1H (416.0µs±60µs) Switching Pulse V-Sync
Test Equipment Required
1.Oscilloscope: Dual-trace with 10:1 probe, V-Range: 0.001~50V/Div., F-Range: DC~AC-20MHz 2.Alignment Tape (FL6A)
Reference Notes: Playback the Alignment tape and adjust VR501 so that the V-sync front edge of the CH1 video output waveform is at the 6.5H(416.0µs) delayed position from the rising edge of the CH2 head switching pulse waveform.
Head Switching Position Adjustment
Purpose: To determine the Head Switching point during playback. Symptom of Misadjustment: May cause Head Switching noise or vertical jitter in the picture. Test point Adj.Point Mode PLAY (SP) Input -----
VR501 TP751(V-OUT) TP504(RF-SW) (Switching Point) (MAIN CBA) GND Tape FL6A Measurement Equipment Oscilloscope
Spec. 6.5H±1H (416.0µs±60µs)
Connections of Measurement Equipment
Oscilloscope Main CBA TP751 GND TP504 CH1 CH2 Trig. (+)
1-7-1
H9500EA
FIRMWARE RENEWAL MODE
1. Turn the power on and remove the disc on the tray. 2. To put the DVD player into version up mode, press [9], [8], [7], [6], and [SEARCH MODE] buttons on the remote control unit in that order. The tray will open automatically. Fig. a appears on the screen and Fig. b appears on the VFD.
F/W Version Up Mode Please insert a DISC for F/W Version Up.
5. After programming is finished, the tray opens automatically. Fig. e appears on the screen and the checksum in (*3) of Fig. e appears on the VFD. (Fig. f)
F/W Version Up Mode VERSION : ******** Completed SUM : 7abc (*3)
Fig. e Completed Program Mode Screen
EXIT: POWER
Fig. a Version Up Mode Screen Fig. f VFD upon Finishing the Programming Mode (Example)
Fig. b VFD in Version Up Mode
The DVD player can also enter the version up mode with the tray open. In this case, Fig. a will be shown on the screen while the tray is open. 3. Load the disc for version up. 4. The DVD player enters the F/W version up mode automatically. Fig. c appears on the screen and Fig. d appears on the VFD.
F/W Version Up Mode VERSION : Reading...(*2) ********
At this time, no buttons are available. 6. Unplug the AC cord from the AC outlet. Then plug it again. 7. Turn the power on by pressing the power button and the tray will close. 8. Press [1], [2], [3], [4], and [DISPLAY] buttons on the remote control unit in that order. Fig. g appears on the screen.
model: ****** 1: 2: 3: 4: 5: 6: 7: 8: Ver: **** Region: **
VFD TEST TT REPEAT PLAY EEPROM CLEAR MEASUREMENT SERVO DISC READ CHECK MECHA CHECK DISC INFO ERROR RATE EXIT: POWER
RETURN: ----EXIT: POWER
Fig. g
Fig. c Programming Mode Screen
9. Press [3] button on the remote control unit. Fig. h appears on the screen.
model: ****** Ver: **** Region: **
Fig. d VFD in Programming Mode (Example)
TEST 3: EEPROM CLEAR EEPROM CLEAR: OK
The appearance shown in (*2) of Fig. c is described as follows:
No. 1 2 3 Appearance Reading... Erasing... State Sending files into the memory Erasing previous version data
RETURN: ----EXIT: POWER
Fig. h
Programming... Writing new version data
10.To finish this mode, press [POWER] button.
1-8-1
H9500TEST
Servo/System Control Block Diagram
(DECK ASSEMBLY)
AL+5V
BLOCK DIAGRAMS
IC501 (SERVO/SYSTEM CONTROL) KEY- 2 8 KEY- 1 7 POWER-LED 23
9 95 94 10 4 80 79
MAIN CBA
TP501 S-INH KEY SWITCH Q507 CL505 CL591 2 KEY-1 2 4 POWER-LED 4
FUNCTION CBA
KEY SWITCH AL+5V
AC HEAD ASSEMBLY
SW507 LD-SW
D555 S-LED AL+5V
CL287 CONTROL HEAD
5 6
CTL(+) CTL(-)
CL504 5 6
TP502 END-S Q506 T-REEL PS502 S-REEL Q515 Q504 ST-S TIMER+5V RESET
LD-SW CTL(+) CTL(-) ST-S END-S T-REEL S-REEL
TIMER-LED 25 DVD-LED 29 VCR-LED 30 REC-LED 26
Q502 Q508 Q509 Q511
D501
TIMER
D502 D503 D504
DVD VCR REC
D591 POWER
34 RESET
AL+5V
SENSOR CBA
TO DVD SYSTEM CONTROL BLOCK Q503 END-S REMOTE-VIDEO TP503 CTL
97 CTL 84 FF/REW-L
DRV-DATA DRV-STB DRV-CLK DVD-POWER
14 REMOTE-VIDEO
68 69 70 21
DRV-DATA DRV-STB DRV-CLK DVD-POWER
TO DVD SYSTEM CONTROL BLOCK
Q510
IC502 (MEMORY)
5 SDA 6 SCL
SENSOR CBA
AL+5V VR501 SW-POINT
2 PG-DELAY
AL+5V SW506 REC-SAFETY
1 2 3 4 5 6 7 8 9 10 11 12
31 REC-SAF-SW A-MUTE-H 83
IIC-BUS SDA IIC-BUS SCL A-MUTE-H IIC-BUS SDA IIC-BUS SCL Hi-Fi-H-SW A-MODE OUTPUT-SELECT LINE-MUTE IIC-BUS SDA IIC-BUS SCL D-REC-H RF-SW C-ROTA D-V-SYNC H-A-SW H-A-COMP V-ENV OUTPUT-SELECT C-SYNC INPUT-SELECT
TO AUDIO BLOCK
CYLINDER ASSEMBLY
PG SENSOR
CAPSTAN MOTOR
CAPSTAN MOTOR
M
DRUM MOTOR
M
LOADING MOTOR
M
CL502 AL+20.5V/+12V P-ON+5V C-FG C-F/R C-CONT GND LM-FWD/REV D-CONT D-PFG GND AL+12V(2) P-ON+15V TO POWER SUPPLY BLOCK
AL+20.5V/+12V P-ON+5V
87 C-FG 78 C-F/R 76 C-CONT 81 77 90
Hi-Fi-H-SW 19 A-MODE 32 LINE-MUTE 82
72 71 33 18 15 13 16 17 6 74 58 41
TO Hi-Fi AUDIO BLOCK
AL+12V(2) P-ON+15V C-POW-SW P-ON-H P-DOWN-L P-OFF-H
66 67 86 73
IIC-BUS SDA IIC-BUS SCL LM-FWD/REV D-REC-H RF-SW D-CONT C-ROTA D-PFG D-V-SYNC H-A-SW H-A-COMP V-ENV C-POW OUTPUT-SELECT -SW P-ON-H C-SYNC INPUT P-DOWN-L -SELECT P-OFF-H
TO VIDEO BLOCK
1-9-1
1-9-2
H9531BLS
Video Block Diagram
REC-VIDEO SIGNAL PB-VIDEO SIGNAL DVD VIDEO SIGNAL MODE: SP/REC
MAIN CBA
IIC-BUS SDA IIC-BUS SCL
IC501 (OSD) Q301
BUFFER
TO SERVO/SYSTEM CONTROL BLOCK
52
TU701 VIDEO 6 TU-VIDEO 24
OSD CHARACTER MIX
50
IC301 (Y/C SIGNAL PROCESS)
65
68 69
46
43
78
79
IC1404 (SW) JK752 V-IN-F
5 3 4
SERIAL DECORDER
(DECK ASSEMBLY)
Y. DELAY
CL251 V(R)-1 V-COM V(L)-1 V(L)-2 V-COM V(R)-2
CYLINDER ASSEMBLY
1 2 3 4 5 6
SW CTL
9
TO SERVO /SYSTEM CONTROL BLOCK TO DVD VIDEO BLOCK
48 50 52 54 56
TUNER IN1 IN2 FRT IN2 FRT PB/EE MUTE
BYPASS
AGC
LUMINANCE SIGNAL PROCESS
R
P
SP EP
SP HEAD AMP
96 95 94 93
VIDEO (R)-1 HEAD VIDEO (L)-1 HEAD VIDEO (L)-2 HEAD VIDEO (R)-2 HEAD
INPUT SELECT
DVD-VIDEO
TUNER IN1 PB/EE
CHARA. INS. 1/2
CCD 1H DELAY
Y
+
C
REC FM AGC
EP HEAD AMP
90 89 88 87
WF1 TP504 RF-SW
D-REC-H 80 RF-SW/C-ROTA D-V-SYNC H-A-SW H-A-COMP V-ENV C-SYNC
70 62 71 83 84 67
JK101 V-OUT1 19 20 V-IN1
MUTE
FBC
CHROMINANCE SIGNAL PROCESS
R PR P
R
P
JK1402 V-OUT2 19 V-IN2 20
CL2018
8 V-OUT2 10 V-IN2
BUFFER
Q103
CL2017 8 10 Q104
BUFFER
61 63
Y/C MIX VXO
D-REC-H RF-SW C-ROTA D-V-SYNC H-A-SW H-A-COMP V-ENV C-SYNC
TO SERVO/SYSTEM CONTROL BLOCK
AGC
58
59
28
29
21
JACK CBA
IC751 (SW) DVD 5 VCR 4 3 SW CTL
9 10 11
X301 4.43MHz TP751 V-OUT WF3
TP301 TP302 C-PB C-PB WF2
Q752
OUTPUT-SELECT
TO SERVO/SYSTEM CONTROL BLOCK
1-9-3
1-9-4
H9531BLV
Audio Block Diagram
PB-AUDIO SIGNAL
REC-AUDIO SIGNAL
Mode : SP/REC
MAIN CBA
TO Hi-Fi AUDIO BLOCK
N-A-PB N-A-REC
IC301 (AUDIO SIGNAL PROCESS)
13 TUNER
15 IN1
17 IN2 ALC DET
12 LINE AMP MUTE 11
PB-ON 5 6 EQ AMP SP/LP-ON +5V 7 8 9
INV R ATT P
ALC
(DECK ASSEMBLY)
ACE HEAD ASSEMBLY
AUDIO HEAD AUDIO ERASE HEAD CL287 A-PB/REC A-COM AE-H AE-H/FE-H 4 3 1 2 4 3 1 2 CL504 A-PB/REC A-COM AE-H AE-H/FE-H Q404 Q403 BIAS OSC 1 2 Q406
REC-ON
AUTO BIAS
3
100
REC AMP
FE HEAD
FULL ERASE HEAD CL501 2 FE-H 1 FE-H-GND
SWITCHING Q405 D-REC-OFF +5V Q401 (PB=ON)
AUDIO HD-SW CONTROL 16
SERIAL DECODER
68 69
71
A-MUTE-H IIC-BUS SDA IIC-BUS SCL
TO SERVO/SYSTEM CONTROL BLOCK
1-9-5
1-9-6
H9531BLA
Hi-Fi Audio Block Diagram
PB-AUDIO SIGNAL REC-AUDIO SIGNAL DVD AUDIO SIGNAL Mode : SP/REC
JACK CBA
JK1402 A-IN2(R) A-IN2(L) A-OUT2(R) A-OUT2(L)
2 6 1 3
MAIN CBA
A-IN2(R) A-IN2(L) A-OUT2(R) A-OUT2(L)
CL2018 4 5 1 2
CL2017 4 5 1 2
Q107 BUFFER Q108 BUFFER
IC751 (SW) VCR 13 14 DVD 12 VCR 1 DVD 2 SW CTL
9 10 11
15
JK101 A-OUT1(R) A-OUT1(L) A-IN1(R) A-IN1(L)
1 3 2 6
Q752
OUTPUT-SELECT DVD-A(R) DVD-A(L)
TO SERVO /SYSTEM CONTROL BLOCK TO DVD AUDIO BLOCK
JK751 A-OUT(R)
67 65
IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
REAR
A-OUT(L)
SW SW ALC
62 61
ALC
70 71
R-CH PNR
P R
SW NOISE
COMP
R-CH BPF
SERIAL DATA DECODER
37 38
IIC-BUS SDA IIC-BUS SCL
JK753 A-IN(L)-F
52 56 54 50 58 60 2 6 10 8 4 12 47
LIM
DEV
VCO
LPF
DO DET
ENV DET MUTE-ON
Q451
21
A-MODE
JK754 A-IN(R)-F
R-CH INSEL
48
OUTPUT SELECT MUTE-ON HOLD PULSE L-CH INSEL
14 15
77 76 74 73 39 75 53 26
TO SERVO/ SYSTEM CONTROL BLOCK
Hi-Fi-H-SW LINE-MUTE
TU701 AUDIO 2
NOISE DET LIM L-CH PNR R P SW NOISE DEV VCO
MIX
COMP
(DECK ASSEMBLY)
CYLINDER ASSEMBLY
CN701 SIF 22 2 SIF
CN1 CN1 CN701 2 4 TU-AUDIO(R) 4 IF SINAL PROCESS 5 TU-AUDIO(L) 5
AFV CBA
LPF
CL251 Hi-Fi-A(R) 7 Hi-Fi-COM 8 Hi-Fi-A(L) 9
NOR SW
COMP
L-CH BPF
R LIM
34 33
24 27
TO AUDIO BLOCK
N-A-REC N-A-PB
L
Hi-Fi AUDIO (R) HEAD Hi-Fi AUDIO (L) HEAD
78 80
1-9-7
1-9-8
H9531BLH
Power Supply Block Diagram
NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal. CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE T1.6AL/250V FUSE. CAUTION ! Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F1001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.
HOT CIRCUIT. BE CAREFUL. Q053,Q054 SW+44V T001 AC1001 F1001 L1003 T1.6AL/250V LINE FILTER D1001 - D1004 BRIDGE RECTIFIER
2 20
P-ON+44V P-ON+15V
19
CL001 1 3 5 6 8
AL+44V AL+12V AL+5V AL+5V AL+20.5V
CL001 1 3 5 6 8
4
18
17
Q1001
16
CN003 1 3 5 6 8 10 12 14 18 17 16
CN050 1 3 5 6 8 10 12 14 18 17 16
P-ON-H AL+12V Q055 SW+9V AL+12V AL+9V AL+5V P-ON+5V Q058 SW+5V Q057 Q059 TIMER+5V
Q056 SW+5V
15
Q1003
14
IC1051
+1.5V REG. +3.3V REG.
IC1052
Q051,Q052 SW+20.5V
P-DOWN-L AL+20.5V/+12V C-POW-SW
7
13
12
8
11
CL002 1 3 5 9 8 7
AL-30V AL+1.5V AL+3.3V F1 F2 P-OFF-H
CL002 1 3 5 9 8 7
AL-30V CN1051 1 2 3 4 5 13 14 15 17 19
EV+1.5V EV+1.5V EV+1.5V EV+3.3V EV+3.3V P-ON+5V EV+9V EV+9V P-ON+3.3V PWRCON
IC1001 ERROR VOLTAGE DET
4 1
JUNCTION CBA
Q1055 SW+5V Q1052 SW+3.3V
Q1008
EV+5V
3 2
DVD P-ON+5V DVD P-ON+3.3V SW+12V Q1053, Q1054 DVD P-ON+12V -FL F1 F2 P-OFF-H
HOT
Q1009 (VOLTAGE DETECTION)
POWER SUPPLY CBA
COLD
MAIN CBA
1-9-9
1-9-10
H9531BLP
DVD System Control/Servo Block Diagram
FOCUS SERVO SIGNAL
TRACKING SERVO SIGNAL
SLED SERVO SIGNAL
SPINDLE SERVO SIGNAL
IC101 (MICRO CONTROLLER) 172 EXT CLOCK 92 CLK33M 170 BE CLOCK IC451 (CLOCK GENERATOR)
3 15 10 14 1/4 1/4 MULTI PLL PLL2 X'TAL OSC 7 8 X451 36.864MHz OSC
DVD OPEN/CLOSE CBA
CL2015 CL2016 2 2 GND 1 OPEN/CLOSE 1 SW2020 OPEN/CLOSE
EV+3.3V
TO DVD VIDEO/ AUDIO BLOCK DIAGRAM
PCM-SCLK A-MUTE ADAC-MD ADAC-MC ADAC-ML IC301 (SERVO DRIVE)
17 FSEL 95 51 50 96 A-MUTE ADAC-MD ADAC-MC ADAC-ML PLAY STOP POWER OPEN/CLOSE
SW2022 PLAY SW2021 STOP
TS
FS FS(+) FS(-) TS(+) TS(-)
PICK-UP UNIT
CN201 18 19 20 17
15 16
FOCUS ACTUATOR DRIVE
+
-
+
-
27 26 25 24
48 47 61 94
CN302 1 2 3 4
CN2014 PLAY 1 STOP 2 POWER 3 OPEN/CLOSE 4
152 FOCUS DRIVE
Q1505
TO SERVO/SYSTEM DVD-POWER CONTROL BLOCK DIAGRAM
14 13
TRACKING ACTUATOR DRIVE
+
-
+
-
IC612 (FIP DRIVER) ~ 150 TRACKING DRIVE 1G 23 7G 17 a b c d e f g h i
7 8 9 10 11 12 13 14 16
IC611 GRID FIP ~
1 2 3
TRAY-OUT
12 11 SPINDLE MOTOR DRIVE
+
-
TRAY-IN
+
-
4 5 6
71 SPDL
SPINDLE MOTOR
M
SLED MOTOR
CN3002
SP(+) SP(-) TRAY-OUT TRAY-IN GND SL(-) SL(+) FG-IN
M
FG CBA
FG SENSOR
CN301 3 4 5 6 7 8 9 1
12
17 18
SLED MOTOR DRIVE
+
-
23
70 SLD
+3.3V
5 IC202 (OP AMP) 14
FP-STB FP-DIN FP-CLK REMOTE-DVD
59 54 53 61
CN401 16 18 21 22
CN1001 FP-STB 16 FP-DIN 18 FP-CLK 21 REMOTE-DVD 22
SEGMENT
2 FP-STB 28 FP-DIN 1 FP-CLK
IC461 RESET 4 68 RESET
RM2001 REMOTE SENSOR
97 TRAY-OUT 60 TRAY-IN 66 FG-IN
REMOTE-VIDEO DRV-CLK DRV-DATA DRV-STB
TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
DRIVE CBA
DVD MAIN CBA UNIT
MAIN CBA
1-9-11
1-9-12
H9531BLSD
Digital Signal Process Block Diagram
DATA(VIDEO/AUDIO) SIGNAL IC102 (SDRAM) IC101 (MICRO CONTROLLER) DVD VIDEO SIGNAL DATA(AUDIO) SIGNAL
SDRAM
24 210 27 SDRAM ADDRESS(0-10) SDRAM ADDRESS(0-10) 60 235 66 ~ 2 13 31 56 74 85 2 13 184 205 247 256
124 125 122 123 128 129 126 127 131 130
~
~
EXTERNAL MEMORY I/F ECC DECODER I/F STREAM I/F
DSP DECODER
DATA ROM INST. ROM DATA ROM INST. ROM DATA ROM INST. ROM AUDIO I/F
~
SDRAM DATA(0-31)
~ ~ ~
SDRAM DATA(0-31)
~
~
PIXEL OPERATION
DETECTOR
C D A B F E CD/DVD
CN201 6 7 8 5 10 2 9 Q253,Q254 CN201 12 AMP 14 AMP Q251,Q252 13 15 16 11
DMA RF SIGNAL PROCESS CIRCUIT DVD/CD FORMATTER I/O PROCESSOR
BCU
UMAC SERIAL
SPDIF 181 PCM-BCK 175 PCM-DATA0 176 PCM-LRCLK 174
TO DVD VIDEO /AUDIO BLOCK DIAGRAM
CD-LD DVD-LD PD-MONI GND(DVD-PD) GND(CD-PD) GND(LD)
135 133 132 134
INST. ROM DATA ROM
32BIT CPU
READ MEMORY
CPU I/F
GENERAL I/O INTERRUPT CONTROLLER TIMER WATCH DOG TIMER VIDEO I/F NTSC/PAL ENCODER D/A D/A D/A D/A Y C R G B 163 164 161 158 160 VIDEO-Y VIDEO-C VIDEO-R VIDEO-G VIDEO-B TO DVD VIDEO /AUDIO BLOCK DIAGRAM
INTERRUPT CONTROLLER 1 3 CD 4 DVD
TIMER
WATCH DOG TIMER
CPU I/F
BCU 6 78 CD/DVD
32BIT CPU D/A
IC201 (SW)
DEBUG
INST CACHE
DATA CACHE IC103 (FLASH ROM)
EXT ADT (0-15), EXT ADR (16-19) EXT ADT (0-15), EXT ADR (16-19)
IC105 (LATCH)
EXT ADT (0-15)
29 36 38 45
~ ~
EXT ADT (0-7)
2 ~ 9
D TYPE LATCH
12 ~ 19
EXT ADR (0-7) EXT ADR (16-19)
FLASH ROM
IC104 (LATCH)
PICK-UP UNIT
EXT ADT (8-15)
2 ~ 9
DVD MAIN CBA UNIT
D TYPE LATCH
12 ~ 19
EXT ADR (8-15)
EXT ADR (0-15)
1 9 16 25 48
1-9-13
1-9-14
~
~
H9531BLD
DVD Video / Audio Block Diagram
DVD VIDEO SIGNAL DATA(AUDIO) SIGNAL DVD AUDIO SIGNAL
WF4
6
IC1402 (VIDEO DRIVER)
4dB AMP
LPF
2dB AMP 2dB AMP
DRIVER DRIVER DRIVER
28 31 33
Y WF6
3 1 2
4
C
JK1401 S-VIDEO OUT
WF5
VIDEO-Y VIDEO-C VIDEO-R VIDEO-G VIDEO-B CN601 1 9 3 7 5 CN1601 1 9 3 7 5 2
TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM
VIDEO-Y VIDEO-C VIDEO-R VIDEO-G VIDEO-B
4dB AMP 4dB AMP 4dB AMP 4dB AMP
LPF
2dB AMP 2dB AMP 2dB AMP 2dB AMP
14
LPF
DRIVER
22
DVD-VIDEO TO VIDEO BLOCK DIAGRAM
16
LPF
DRIVER
19
12
LPF
DRIVER
25
JK101
15 11 7
DVD-R DVD-G DVD-B
IC601 (AUDIO DAC) TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM
SPDIF PCM-BCK PCM-DATA0 PCM-LRCLK
1 2 3 SERIAL PORT
4X/8X OVERSAMPLING DIGITAL FILTER /FUNCTION CONTROLLER
ENPHANCED MULTI-LEVEL DELTA-SIGMA MODULATOR
DAC
LPF+AMP
L-CH
7
Q1351 BUFFER
JK1202 DIGITAL AUDIO OUT IC1201 (AMP) 3 2 6 5 1 DVD-A(L) TO AUDIO BLOCK DIAGRAM
DAC
LPF+AMP
R-CH
8
WF9
CN601 18 13 15 14 16 12 CN1601 18 SPDIF DVD-A(L) 13 DVD-A(R) 15 DVD-A(L)-MUTE 14 DVD-A(R)-MUTE 16 DVD-A-MUTE 12
WF7
ADAC-MD ADAC-MC ADAC-ML
TO DVD SYSTEM CONTROL /SERVO BLOCK DIAGRAM
ZERO DETECT 13 14 15 SERIAL CONTROL SYSTEM CLOCK
12 11
WF8
7
VREF Q1202
16
Q1204 Q1201 +3.3V Q1203
PCM-SCLK A-MUTE
DVD MAIN CBA UNIT
+3.3V
MAIN CBA
1-9-15
1-9-16
H9531BLVD
SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS
Standard Notes WARNING
Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by the mark " ! " in the schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire, or other hazards.
Notes:
1. Do not use the part number shown on these drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since these drawings were prepared. 2. All resistance values are indicated in ohms (K=103, M=106). 3. Resistor wattages are 1/4W or 1/6W unless otherwise specified. 4. All capacitance values are indicated in µF (P=10-6 µF). 5. All voltages are DC voltages unless otherwise specified. 6. Electrical parts such as capacitors, connectors, diodes, IC's, transistors, resistors, switches, and fuses are identified by four digits. The first two digits are not shown for each component. In each block of the diagram, there is a note such as shown below to indicate these abbreviated two digits.
1-10-1
SCPA1
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. 2. CAUTION: Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F1001) is blown, first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. 3. Note: (1) Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since the drawings were prepared. (2) To maintain original function and reliability of repaired units, use only original replacement parts which are listed with their part numbers in the parts list section of the service manual. 4. Wire Connectors (1) Prefix symbol "CN" means "connector" (can disconnect and reconnect). (2) Prefix symbol "CL" means "wire-solder holes of the PCB" (wire is soldered directly). 5. Voltage indications for PLAY and REC modes on the schematics are as shown below:
< DVD Section >
1 5.0 2 3 5.0 (2.5) PLAY mode STOP mode
< VCR Section >
1 5.0 The same voltage for both PLAY, REC & DVD modes 2 3 5.0 (2.5) < > Indicates that the voltage is not consistent here. PLAY mode REC mode DVD mode
Unit: Volts
The same voltage for both PLAY & STOP modes Indicates that the voltage is not consistent here.
6. How to read converged lines
1-D3 Distinction Area Line Number (1 to 3 digits) Examples: 1. "1-D3" means that line number "1" goes to area "D3". 2. "1-B1" means that line number "1" goes to area "B1".
3 AREA D3 2 1 A
1-B1
AREA B1 1-D3 B C D
7. Test Point Information
: Indicates a test point with a jumper wire across a hole in the PCB. : Used to indicate a test point with a component lead on foil side. : Used to indicate a test point with no test pin. : Used to indicate a test point with a test pin.
1-10-2
SCRK05
Main 1/9 Schematic Diagram < VCR Section >
1-10-3
1-10-4
H9531SCM1
Main 2/9 & Sensor Schematic Diagram < VCR Section >
* 1 Note: it is necessary to replace one or more of the following Diodes, When
all one should be replaced: D501, D502, D503, D504.
1-10-5
1-10-6
H9531SCM2
Main 3/9 Schematic Diagram < VCR Section >
1-10-7
1-10-8
H9531SCM3
Main 4/9 Schematic Diagram < VCR Section >
1-10-9
1-10-10
H9531SCM4
Main 5/9 Schematic Diagram < VCR Section >
1-10-11
1-10-12
H9531SCM5
Main 6/9 Schematic Diagram < VCR Section >
1-10-13
1-10-14
H9531SCM6
Main 7/9 Schematic Diagram < VCR Section >
1-10-15
1-10-16
H9531SCM7
Main 8/9 & DVD Open/ Close Schematic Diagram < VCR Section >
1-10-17
1-10-18
H9531SCM8
Main 9/9 Schematic Diagram < VCR Section >
1-10-19
1-10-20
H9531SCM9
Power Supply & Junction Schematic Diagram < VCR Section >
CAUTION ! For continued protection against fire hazard, replace only with the same type fuse. NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal. CAUTION ! Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F1001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.
1-10-21
1-10-22
H9531SCP
Jack Schematic Diagram < VCR Section >
1-10-23
1-10-24
H9531SCJ
Function Schematic Diagram < VCR Section >
1-10-25
1-10-26
H9531SCF
AFV Schematic Diagram < VCR Section >
1-10-27
1-10-28
H9531SCAFV
Main CBA Top View & Sensor CBA Top View Sensor CBA Top View
BHB300F01014-A WF2 TP301 C-PB WF3 TP751 V-OUT
BHB300F01014-B
VR501 SW-P WF1 TP504 RF-SW TP503 CTL TP501 S-INH
1-10-29
1-10-30
BH9510F01014A
Main CBA Bottom View
1-10-31
1-10-32
BH9510F01014A
Function CBA Top View
Function CBA Bottom View
BH9510F01014B
DVD OPEN/CLOSE CBA Top View
DVD OPEN /CLOSE CBA Bottom View
BH9510F01014C
1-10-33
1-10-34
Power Supply CBA Top View
CAUTION ! For continued protection against fire hazard, replace only with the same type fuse. NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal.
Power Supply CBA Bottom View
CAUTION ! Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F1001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. ALSO , IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWLY , WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT , A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
BH9510F01022A
Junction CBA Top View
Junction CBA Bottom View
BH9510F01022B 1-10-35 1-10-36
Jack CBA Top View
Jack CBA Bottom View
BH9510F01022C
AFV CBA Top View
AFV CBA Bottom View
BHC400F01092 1-10-37 1-10-38
DVD Main 1/3 Schematic Diagram < DVD Section >
1-10-39
1-10-40
H9531SCD1
DVD Main 2/3 Schematic Diagram < DVD Section >
1-10-41
1-10-42
H9531SCD2
IC101 VOLTAGE CHART
PIN.NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 PLAY 3.3 ~ ~ 0 ~ ~ 3.3 ~ ~ ~ 0 ~ ~ 3.3 1.5 0 3.4 3.4 ~ ~ ~ ~ 3.3 0 0.4 0.9 ~ ~ 3.3 0 ~ ~ STOP 3.3 ~ ~ 0 ~ ~ 3.3 ~ ~ ~ 0 ~ ~ 3.3 1.5 0 3.4 3.4 ~ ~ ~ ~ 3.3 0 0.4 0.6 ~ ~ 3.3 0 ~ ~ PIN.NO 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 PLAY 2.2 ~ ~ ~ ~ 0.3 0.1 ~ ~ 3.3 0 ~ ~ 2.0 3.3 3.2 ----3.4 3.4 ----3.4 3.4 3.3 3.3 0 0 3.3 3.4 3.1 3.2 3.4 0.8 STOP 2.9 ~ ~ ~ ~ 0.5 0.1 ~ ~ 3.3 0 ~ ~ 2.6 3.4 3.4 ----3.4 3.4 ----3.4 3.4 3.3 3.3 0 0 3.3 3.4 3.1 3.4 3.4 0.8 PIN.NO 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 PLAY 0.1 1.2 1.6 3.4 0 1.7 2.4 ------------3.4 --------0.1 3.3 0 ----------------------------------------3.3 1.7 0 2.0 3.4 3.4 STOP 0.1 2.5 1.6 3.4 0 1.7 1.7 ------------3.4 --------0.1 3.3 0 ----------------------------------------3.3 1.5 0 2.0 0.1 3.4 PIN.NO 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 PLAY 3.4 1.6 0 ----------------3.3 0.9 0 0.8 1.6 2.1 2.6 2.0 0.7 0 1.8 1.4 0.3 1.6 3.3 0 1.9 1.9 2.4 2.4 2.4 2.4 2.0 2.0 2.0 STOP 3.4 1.6 0 ----------------3.3 0.9 0 0.8 1.6 2.1 2.6 2.0 0.9 0 1.8 1.4 0.3 1.6 3.3 0 1.9 1.9 2.4 2.4 2.4 2.4 2.0 2.0 2.0 PIN.NO 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 PLAY 2.0 2.2 2.3 0.4 1.2 0.4 0.2 2.3 1.7 0 1.7 1.7 1.7 1.7 0.5 1.6 3.3 0 --------3.3 1.7 0 1.7 3.3 1.4 0 2.2 3.3 0.7 0 0.5 STOP 2.0 2.2 2.3 0.1 0.4 0.1 0.2 2.3 1.7 0 1.7 1.7 1.7 1.7 0.5 1.6 3.3 0 --------3.3 1.7 0 1.7 3.3 1.4 0 2.2 3.3 0.7 0 0.5 PIN.NO 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 PLAY 0.5 1.4 0.5 0.9 3.3 1.5 0 2.1 0 0.8 3.3 1.6 ----1.8 1.7 1.4 0 ------------1.7 3.3 0 ~ ~ 1.5 ~ ~ 3.3 ~ ~ ~ STOP 0.5 1.4 0.5 0.9 3.3 1.5 0 2.1 0 0.8 3.3 1.6 ----1.8 1.7 0.1 0 ------------1.7 3.3 0 ~ ~ 1.5 ~ ~ 3.3 ~ ~ ~ PIN.NO 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 PLAY ~ 0 3.3 ~ ~ 0 ~ ~ ~ 3.3 ~ ~ ~ 0 2.4 2.4 3.3 ~ 0 ~ 1.5 ~ 0 ~ ~ 3.3 ~ ~ 0 1.5 1.9 0 STOP ~ 0 3.3 ~ ~ 0 ~ ~ ~ 3.3 ~ ~ ~ 0 3.5 2.1 3.3 ~ 0 ~ 1.5 ~ 0 ~ ~ 3.3 ~ ~ 0 1.5 1.9 0 PIN.NO 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 PLAY 1.9 3.3 ~ ~ ~ 0 ----3.3 3.3 1.6 ~ 0 1.7 3.0 3.3 3.3 0 3.2 2.4 1.5 0 2.4 ~ 0 ~ 3.3 ~ ~ ~ 0 ~ ~ STOP 1.9 3.3 ~ ~ ~ 0 ----3.3 3.3 1.6 ~ 0 1.7 3.0 3.3 3.3 0 3.2 2.1 1.5 0 2.1 ~ 0 ~ 3.3 ~ ~ ~ 0 ~ ~
1-10-43
1-10-44
DVD Main 3/3 Schematic Diagram < DVD Section >
1-10-45
1-10-46
H9531SCD3
WAVEFORMS
WF2 UPPER
(TP301 of Main CBA) of Main CBA)
WF1 LOWER (TP504
C-PB RF-SW
10mV x 10 0.5V x 10 5msec
WF3 UPPER
(TP751 of Main CBA) of Main CBA)
WF1 LOWER (TP504
V-OUT RF-SW
0.1V x 10 0.5V x 10 50usec
WF3
(TP751 of Main CBA)
V-OUT E-E 10usec
50mV x 10
1-11-1
H9531WFPAL
WAVEFORMS
NOTE:
Input CD: 1kHz PLAY (WF7~WF9) DVD: POWER ON (STOP) MODE (WF4~WF6)
WF4
Pin 1 of CN1601
WF7
Pin 13 of CN1601
VIDEO-Y
0.2V
20µsec
AUDIO-L
1V
0.5msec
WF5
Pin 9 of CN1601
WF8
Pin 15 of CN1601
VIDEO-C
0.2V
20µsec
AUDIO-R
1V
WF6
Pin 31 of IC1402
WF9
Pin 18 of CN1601
VIDEO-CVBS
0.5V
20µsec
SPDIF
1V
0.1µsec
1-11-2
H9531WFPAL
WIRING DIAGRAM < VCR SECTION >
FRONT VIDEO IN AUDIO OUT(R) AUDIO OUT (L) S-VIDEO OUT REAR DIGITAL AUDIO OUT AUDIO OUT (R) AUDIO OUT (L) ANT-IN ANT-OUT
CL591 1 FUNCTION CBA 2 (BH9510F01014B) 3 4
GND KEY-1 AL+5V(1) POWER-LED
CL505 1 2 3 4
JK101
(DECK ASSEMBLY)
AC HEAD ASSEMBLY
AUDIO ERASE HEAD AUDIO HEAD CONTROL HEAD CL287 AE-H AE-H/FE-H A-COM A-PB/REC CTL(+) CTL(-) CL504 AE-H AE-H/FE-H A-COM A-PB/REC CTL(+) CTL(-)
1 3 5 7 9 11 13 15 17
2 4 6 8 10 12 14 16 18 20
1 2 3 4 5 6
1 2 3 4 5 6
FE HEAD
FULL ERASE HEAD
CL501 2 FE-H 1 FE-H GND
1 2 3 4 AL+5V(P-DOWN) 5 AL+5V 6 GND 7 AL+20.5V 8 GND 9 CL002 AL-30V 1 GND 2 AL+1.5V 3 GND 4 AL+3.3V 5 GND 6 P-OFF-H 7 F2 8 F1 9
CL001 AL+44V GND AL+12V GND
CL001 1 2 3 4 5 6 7 8 9 CL002 1 2 3 4 5 6 7 8 9
CN003 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1 2 3 4
5
CN050 AL+44V GND AL+12V GND
AL+5V(P-DOWN)
6 7 8 9 10 11 12 13 14 15 16 17 18
AL+5V GND AL+20.5V GND AL-30V GND AL+1.5V GND AL+3.3V GND P-OFF-H F2 F1
CN1051 EV+1.5V EV+1.5V EV+1.5V EV+3.3V EV+3.3V GND GND GND GND GND GND GND P-ON+5V EV+9V EV+9V FP-STB P-ON+3.3V FP-DIN PWRCON OUT-SEL FP-CLK REMOTE-DVD
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
TO DVD MAIN CBA UNIT CN401 (JW001)
19 21
POWER SUPPLY CBA (BH9510F01022A)
JUNCTION CBA (BH9510F01022B)
CN1601 VIDEO-Y ASPECT VIDEO-R GND VIDEO-B GND VIDEO-G GND VIDEO-C GND GND DVD-A-MUTE DVD-A(L) DVD-A(L)-MUTE DVD-A(R) DVD-A(R)-MUTE AUDIO+5V SPDIF CN2014 PLAY STOP POWER OPEN/CLOSE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
TO WIRING DIAGRAM
M
CYLINDER ASSEMBLY
PG SENSOR LOADING MOTOR
CAPSTAN MOTOR
M
DRUM MOTOR VIDEO (R)1 HEAD VIDEO (L)1 HEAD VIDEO (L)2 HEAD VIDEO (R)2 HEAD Hi-Fi AUDIO (R) HEAD Hi-Fi AUDIO (L) HEAD
M
CAPSTAN MOTOR
1 2 3 4 5 6 7 8 9 10 11 12
CL502 AL+20.5V/+12V P-ON+5V C-FG C-F/R C-CONT GND LM-FWD/REV D-CONT D-PFG GND AL+12V(2) P-ON+15V
AC CORD
DVD OPEN/ CLOSE 1 OPEN/CLOSE 2 GND CBA (BH9510F01014C)
CL2016
CL2015 1 2
JACK CBA (BH9510F01022C)
CL2017 1 2 3 4 5 6 7 8 9 10 A-OUT2(R) A-OUT2(L) GND A-IN2(R) A-IN2(L) SC2-IN AL+12V V-OUT2 GND V-IN2 CL2018 1 2 3 4 5 6 7 8 9 10
JK1402
1 3 5 7 9 11 13 15 17 19 21 2 4 6 8 10 12 14 16 18 20
1 2 3 4 5 6 7 8 9
CL251 V(R)-1 V-COM V(L)-1 V(L)-2 V-COM V(R)-2 Hi-Fi-A(R) Hi-Fi-COM Hi-Fi-A(L)
CN1 1 2 3 4 AFV CBA 5 (BHC400F01092) 6 7 8 9
NU SIF GND TU-AUDIO(R) TU-AUDIO(L) P-ON+5V P-ON+5V IIC-BUS SCL IIC-BUS SDA
CN701 1 2 3 4 5 6 7 8 9
TO DVD MAIN CBA UNIT CN601 (JW002)
SENSOR CBA (BHB300F01014A)
4 3 2 1
TO DVD MAIN CBA UNIT CN302 (JW003)
SENSOR CBA (BHB300F01014B)
MAIN CBA (BH9510F01014A)
1-12-1
1-12-2
H9531WI
WIRING DIAGRAM < DVD SECTION >
DVD MECHA
FG SENSOR TRAY-OUT
FG CBA
TRAY-IN 1 2 3 4 5 6 7 8 9
SPINDLE MOTOR SLED MOTOR
M M
CN301 FG-IN P-ON+3.3V(D) SP(+) SP(-) TRAY-OUT TRAY-IN GND SL(-) SL(+)
DRIVE CBA
CN401 EV+1.5V EV+1.5V EV+1.5V EV+3.3V EV+3.3V GND GND GND GND GND GND GND P-ON+5V EV+9V EV+9V FP-STB P-ON+3.3V FP-DIN PWRCON OUT-SEL FP-CLK REMOTE-DVD
1 2 3 4 5 6 7 8 9 10 11 TO MAIN CBA 12 CN1051 13 (JW001) 14 15 16 17 18 19 20 21 22 TO WIRING DIAGRAM 1 2 3 4 5 6 7 8 9 TO MAIN CBA 10 CN1601 (JW002) 11 12 13 14 15 16 17 18
DVD MAIN CBA UNIT
CN601 VODEO-Y ASPECT VIDEO-R GND VIDEO-B GND VIDEO-G GND VIDEO-C GND GND DVD-A-MUTE DVD-A(L) DVD-A(L)-MUTE DVD-A(R) DVD-A(R)-MUTE AUDIO+5V SPDIF
11 2 3 DETECTOR 5 6 4 7
TS
FS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
CN201 GND E P-ON+5V VREF B C D A CD/DVD F GND(LD) CD-LD PD-MONI DVD-LD GND(DVD-PD) GND(CD-PD) TS(-) FS(+) FS(-) TS(+)
CN302 PLAY STOP POWER OPEN/CLOSE
1 2 3 4
TO MAIN CBA CN2014 (JW003)
PICK UP UNIT
1-12-3
1-12-4
H9531WID
IC PIN FUNCTION DESCRIPTIONS
[ VCR Section ]
IC501( SERVO / SYSTEM CONTROL IC )
"H" 4.5V, "L" 1.0V Pin IN/ No. OUT 1 IN Signal Name SC2-IN PGDELAY POWSAF END-S AFC V-ENV KEY-1 KEY-2 LD-SW ST-S NU NU Function Input Signal from Pin 8 of SCART2 Video Head Switching Pulse Signal Adjusted Voltage P-ON Power Detection Input Signal Tape End Position Detect Signal Automatic Frequency Control Signal Video Envelope Comparator Signal Key Scan Input Signal 1 Key Scan Input Signal 2 Deck Mode Position Detector Signal Tape Start Position Detector Signal Not Used Not Used Dummy V-sync Output Active Level A/D Pin IN/ No. OUT 23 24 25 26 27 A/D 28 29 A/D A/D A/D A/D A/D A/D A/D A/D H/Hi-z L H/L 44 H/L 45 H/L H/L H/L 49 50 H 51 IN 46 47 48 OUT OSCout IN NU NU IN OSCin 30 31 Signal Function Name POWER- "POWER" LED OUT LED Signal Output NU Not Used OUT TIMERLED Active Level H/L H/L H/L H/L H/L H/L
"TIMER" LED Signal Output OUT REC-LED "REC" LED Signal Output NU NU Not Used Not Used
2
IN
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
IN IN IN IN IN IN IN IN -
OUT DVD-LED "DVD" LED Signal Output "VCR" LED Signal OUT VCR-LED Output Recording Safety SW REC-SAF- Detect (With Record IN SW tab="L"/ With out Record tab="H") IN A-MODE Hi-Fi Tape Detection Signal
32 33 34 35 36 37 38 39 40 41 42 43
L H L H/L H/L L -
OUT D-REC-H Delayed Record Signal IN IN IN RESET XCin Vcc Xin Vss System Reset Signal (Reset="L") Sub Clock Sub Clock Vcc Main Clock Input Main Clock Input Vss(GND) Input Select SCART 8Pin DVD Input Control Signal Clock Select (GND) Clock Input for letter size Clock Output for letter size Not Used Not Used
OUT XCOUT
OUT Xout OUT INPUT SELECT IN IN DVD8PIN-IN CLKSEL
OUT D-VSYNC IN
REMOTE Remote -VIDEO Control Sensor Color Phase Rotary Changeover SIgnal Video Head Amp Switching Pulse Head Amp Comparator Signal Video Head Switching Pulse HiFi Audio Head Switching Pulse Not Used DVD Power Control Signal Not Used
OUT C-ROTA OUT H-A-SW IN H-ACOMP
OUT RF-SW OUT Hi-Fi-HSW NU OUT DVDPOWER NU
FSC-IN 4.43MHz Clock Input [4.43MHz] OSDVss OSDVss OSD-V-IN OSD Video Signal Input NU Not Used
1-13-1
H9531PIN
Pin IN/ No. OUT 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
Signal Name
Function OSD Video Signal Output OSDVcc Not Used Not Used Not Used Not Used Composite Synchronized Pulse
Active Level PULSE
Pin IN/ No. OUT 81 82 83
Signal Name
Function
OUT OSD-VOUT IN OSDVcc NU NU NU NU C-SYNC
OUT LM-FWD/ Loading Motor REV Control Signal OUT LINEMUTE Audio Mute Control Signal
Active Level H/L/ Hi-z H H
OUT A-MUTE- Audio Mute Control H Signal (Mute = "H") CTL Frequency OUT FF/REW- Characteristics Switching Signal (FF/ L REW="L") IN IN IN NU Not Used P-DOWN- Power Voltage Down L Detector Signal C-FG NU NU D-PFG Capstan Motor Rotation Detection Pulse Not Used Not Used
84 85
L L PULSE -
OUT 8POUT-1 Control SCART 1 8Pin Level by using OUT 8POUT-2 8POUT-1 and 8POUT-2 NU NU NU NU NU Not Used Not Used Not Used Not Used Not Used Capstan Power Switching Signal Power On Signal at High VFD Driver IC Control Data
H/L H/L H H/L H/L
86 87 88 89 90 91 92 93 94 95
Drum Motor Phase/ Frequency Generator PULSE H/L H/L PULSE A/D
OUT C-POWSW OUT P-ON-H OUT DRVDATA
AMPVRE V-Ref for CTL AMP F OUT AMPVRE V-Ref for CTL AMP F in NU Not Used Playback/Record Control Signal (-) Playback/Record Control Signal (+) CTL AMP Connected Terminal
OUT DRV-STB VFD Driver IC Chip Select Signal OUT DRV-CLK VFD Driver IC Control Clock OUT IIC-BUSSCL IN/ IIC-BUSOUT SDA IIC BUS Control Clock IIC BUS Control Data
IN/ CTL (-) OUT IN/ CTL (+) OUT IN AMPC
H/L 96 H/L 97 H/L 98 H H/L H/L PWM PWM H/L PULSE PULSE 99 100
CTLAMP To Monitor for CTL out AMP Output AMPVcc AVcc AGC AMPVcc A/D Converter Power Input/ Standard Voltage Input IF AGC Control Signal
OUT P-OFF-H Power Off at High OUT OUTPUT- Output Select SELECT DVDDVD Power Monitor IN POWER- Signal (P-off="L", MONITOR P-on="H") OUT C-CONT OUT D-CONT OUT C-F/R IN IN S-REEL T-REEL Capstan Motor Control Signal Drum Motor Control Signal Capstan Motor FWD/ REV Control Signal (FWD="L"/REV="H") Supply Reel Rotation Signal Take Up Reel Rotation Signal
Notes: Abbreviation for Active Level: PWM -----Pulse Wide Modulation A/D--------Analog - Digital Converter
1-13-2
H9531PIN
IC612 [ PT6313-S-TP ]
Pin In/Out No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 In Out In Out Out Out In In In In Signal Name CLK STB K1 K2 VSS VDD a b c d e f g h VEE i 7G 6G 5G 4G 3G 2G 1G VDD VSS OSC DOUT DIN Power Supply GND Oscillator Input Serial Data Output Serial Data Input Grid Output Pull Down Level Segment Output Segment Output Name Function Clock Input Serial Interface Strobe Key Data 1 Input Key Data 2 Input GND Power Supply
1-13-3
H9531PIN
LEAD IDENTIFICATIONS
2SA1175(F,H,J) 2SC2785(F,H,J,K) BA1F4M-T BN1F4M-T BN1L4M-T KRA103M KRA104M KRC103M KTA1266(GR) KTA1267(GR,Y) KTC3199(BL,GR,Y)
E C B E C B
2SA1015-GR(TPE2) 2SA1020(Y) 2SC1815-BL(TPE2) 2SC1815-GR(TPE2) 2SC1815-Y(TPE2) 2SC2120-Y(TPE2) 2SC3266-Y(TPE2) KTA1281(Y) KTC3203(Y) KTC3205(Y)
PQ070XF01SZ
MID-32A22F PT204-6B-12
1234
C E
KIA4558P NJM4558D 8 5
A K
EL817A EL817B EL817C LTV-817B-F LTV-817C-F
C E
FMG4A T148 RN1511(TE85R) C1 C2
PT6313-S-TP 15 28
FA1F4M-T1B KRC103S RTK KTC3875Y-RTK C
2SK3566
B1 E B2 LA70100M-TRM 16 30 1 LC74793JM-TRM 14 B E
G D S
1
4
7-BT-292GN
24 1 13
60
LA72648M-MPB-E
41
12
61 40
1
35
1
15 BR24C02F-W BR24L02F-WE2 CAT24WC02JI
MM1567AJBE 18 34
BU4053BCF-E2 TC4053BF(N) 9 16
8
5 80 21 1
1
4
1
17
20
1
8
LA71750EM-MPB-E QSZAC0RMB159
80 81
51 50
MSP3407G-QG-B8 MSP3407G-QG-B8-V3 Note: A: Anode K: Cathode E: Emitter C: Collector B: Base R: Reference S: Source G: Gate D: Drain
100 1 30
31
1
11
1-14-1
H9531LE
DECK MECHANISM SECTION
DVD PLAYER & VIDEO CASSETTE RECORDER
H9531ED
Sec. 2: Deck Mechanism Section
I Standard Maintenance I Alignment for Mechanism I Disassembly/Assembly of Mechanism I Alignment Procedures of Mechanism
TABLE OF CONTENTS
Standard Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1-1 Service Fixture and Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2-1 Mechanical Alignment Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3-1 Disassembly / Assembly Procedures of Deck Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4-1 Alignment Procedures of Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4-8
STANDARD MAINTENANCE
Service Schedule of Components
H: Hours Deck Ref.No. B2 B3 B8 B587 B31 B573,B574 B37 B52 *B73 *B86 B133 B410 B414 B416 B525 Part Name Cylinder Assembly Loading Motor Assembly Pulley Assembly Tension Lever Assembly AC Head Assembly Reel S, Reel T Capstan Motor Cap Belt FE Head Assembly F Brake Assembly (HI) Idler Assembly (HI) Pinch Arm Assembly M Brake (SP) Assembly (HI) M Brake (TU) Assembly (HI) LDG Belt I I I I I I I I I I I I I I I I I I I I I 1,000 H : Check I: Change
Periodic Service Schedule 2,000 H I I I I 3,000 H 4,000 H I
Notes: 1.Clean all parts for the tape transport (Upper Drum with Video Head / Pinch Roller / Audio Control Head / Full Erase Head) using 90% lsopropyl Alcohol. 2.After cleaning the parts, do all DECK ADJUSTMENTS. 3.For the reference numbers listed above, refer to Deck Exploded Views. * B73 ------ Recording model only * B86 ------ Not used in 2 head model.
2-1-1
U27MENHS
Cleaning
Cleaning of Video Head
Clean the head with a head cleaning stick or chamois cloth. Procedure 1.Remove the top cabinet. 2.Put on a glove (thin type) to avoid touching the upper and lower drum with your bare hand. 3.Put a few drops of 90% Isopropyl alcohol on the head cleaning stick or on the chamois cloth and, by slightly pressing it against the head tip, turn the upper drum to the right and to the left. Notes: 1.The video head surface is made of very hard material, but since it is very thin, avoid cleaning it vertically. 2.Wait for the cleaned part to dry thoroughly before operating the unit. 3.Do not reuse a stained head cleaning stick or a stained chamois cloth.
Cleaning of Audio Control Head
Clean the head with a cotton swab. Procedure 1.Remove the top cabinet. 2.Dip the cotton swab in 90% isopropyl alcohol and clean the audio control head. Be careful not to damage the upper drum and other tape running parts. Notes: 1.Avoid cleaning the audio control head vertically. 2.Wait for the cleaned part to dry thoroughly before operating the unit or damage may occur.
ACE Head
Upper Cylinder
Do Not !
Video Head Cleaning Stick
2-1-2
U27MENHS
SERVICE FIXTURE AND TOOLS
J-1-1, J-1-2
J-2
J-3
J-4
J-5
Ref. No. Name J-1-1 J-1-2 Alignment Tape Alignment Tape
Part No. FL6A FL6N8 (1 speed only) FL6NS8 (2 speed only) Available Locally Available Locally Available Locally Available Locally
Adjustment Head Adjustment of Audio Control Head Azimuth and X Value Adjustment of Audio Control Head / Adjustment of Envelope Waveform
J-2 J-3 J-4 J-5
Guide Roller Adj.Screwdriver Mirror Azimuth Adj.Screwdriver + X Value Adj.Screwdriver -
Guide Roller Tape Transportation Check A/C Head Height X Value
2-2-1
U25PFIX
MECHANICAL ALIGNMENT PROCEDURES
Explanation of alignment for the tape to correctly run starts on the next page. Refer to the information below on this page if a tape gets stuck, for example, in the mechanism due to some electrical trouble of the unit. B. Method to place the Cassette Holder in the tapeloaded position without a cassette tape 1. Disconnect the AC Plug. 2. Remove the Top Case and Front Assembly. 3. Turn the LDG Belt in the appropriate direction shown in Fig. M1. Release the locking tabs shown in Fig. M1 and continue turning the LDG Belt until the Cassette Holder comes to the tape-loaded position. Allow a minute or two to complete this task.
4-4-1 Service Information
A. Method for Manual Tape Loading/Unloading To load a cassette tape manually: 1. Disconnect the AC plug. 2. Remove the Top Case and Front Assembly. 3. Insert a cassette tape. Though the tape will not be automatically loaded, make sure that the cassette tape is all the way in at the inlet of the Cassette Holder. To confirm this, lightly push the cassette tape further in and see if the tape comes back out, by a spring motion, just as much as you have pushed in. 4. Turn the LDG Belt in the appropriate direction shown in Fig. M1 for a minute or two to complete this task. To unload a cassette tape manually: 1. Disconnect the AC plug. 2. Remove the Top Case and Front Assembly. 3. Make sure that the Moving guide preparations are in the Eject Position. 4. Turn the LDG Belt in the appropriate direction shown in Fig. M1 until the Moving guide preparations come to the Eject Position. Stop turning when the preparations begin clicking or can not be moved further. However, the tape will be left wound around the cylinder. 5. Turn the LDG Belt in the appropriate direction continuously, and the cassette tape will be ejected. Allow a minute or two to complete this task.
Top View
Moving guide T preparation (Eject Position) Moving guide S preparation (Eject Position) LOAD UNLOAD /EJECT Side View
LDG Belt
Push the tape to load it. Push the locking tab gently to unlock when loading without a cassette.
Fig. M1
Bottom View
LDG Belt (B)
UNLOAD /EJECT
Cam Gear
Fig. M2
2-3-1
H9500MA
1.Tape Interchangeability Alignment
Note: To do these alignment procedures, make sure that the Tracking Control Circuit is set to the center position every time a tape is loaded or unloaded. (Refer to page 2-3-4, procedure 1-C, step 2.) Equipment required: Dual Trace Oscilloscope VHS Alignment Tape (FL6NS8) Guide Roller Adj. Screwdriver X-Value Adj. Screwdriver Note: Before starting this Mechanical Alignment, do all Electrical Adjustment procedures.
Flowchart of Alignment for tape traveling Loading (Use a blank tape.) Not good Adjust the height of the Guide Rollers (Supply side and take-up side). (Use a blank tape.) (pg. 2-3-3) 1-A Check to see that the tape is not creasing and that there is no slack on the supply and take-up side Guide Rollers. (Use a blank tape.) 1-A Adjust the X Value for maximum envelope. (pg. 2-3-3) (Use Alignment Tape.) 1-B
Adjust the envelope. (pg. 2-3-4)
1-C
Not good
Check the envelope. OK Adjust the Audio Section. (Azimuth Alignment) (pg. 2-3-4) Check the audio output. OK Check the following: 1. X Value (pg. 2-3-3) 2. Envelope (pg. 2-3-4) OK
1-C
Do the final tape-traveling test to see that the tape runs normally in play mode without creasing or slacking. 1-A OK
1-D
Not good
Completion
1-D
Not good
Adjust the X value and envelope. 1-B, 1-C
1-B, 1-C
2-3-2
H9500MA
1-A. Preliminary/Final Checking and Alignment of Tape Path
Purpose: To make sure that the tape path is well stabilized. Symptom of Misalignment: If the tape path is unstable, the tape will be damaged. Note: Do not use an Alignment Tape for this procedure. If the unit is not correctly aligned, the tape may be damaged. 1. Playback a blank cassette tape and check to see that the tape runs without creasing at Guide Rollers [2] and [3], and at points A and B on the lead surface. (Refer to Fig M3 and M4.) 2. If creasing is apparent, align the height of the guide rollers by turning the top of Guide Rollers [2] and [3] with a Guide Roller Adj. Screwdriver. (Refer to Fig. M3 and M5.)
Guide Roller [2] Guide Roller [3]
3. Check to see that the tape runs without creasing at Take-up Guide Post [4] or without snaking between Guide Roller [3] and AC Head. (Fig. M3 and M5) 4. If creasing or snaking is apparent, adjust the Tilt Adj. Screw of the AC Head. (Fig. M6)
Azimuth Adj. Screw
AC Head X-Value Adj. Screwdriver
Tilt Adj. Screw
Fig. M6
1-B. X Value Alignment
Purpose: To align the Horizontal Position of the Audio/Control/ Erase Head. Symptom of Misalignment: If the Horizo