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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
DCVR-2700
PAL
SECAM
MAIN SECTION
DVD PLAYER & VIDEO CASSETTE RECORDER
DCVR-2700
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 Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1 IC Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1 Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
Manufatured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarks of Dolby Laboratories. "DTS" and "DTS Digital Out" are trademarks of Digital Theater Systems Inc.
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 -8 85 20 ~ 20K -4 SP Mode SP Mode SP Mode Vp-p dB dB dB 0.8 39 -10 40 1.0 42 -6 46 -2 1.2 E-E Mode E-E Mode E-E Mode E-E Mode dBV dBV dB % dB dB -11 -14 -9 -9 36 -6 -6 41 1.0 -4 -4 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
H9300SP
< DVD Section >
ITEM 1. Video Output 2. Optical Digital Out 3. Audio (PCM) 3-1. Output Level 3-2. S/N 3-3. Freq. Response DVD CD 3-4. THD+N fs=48kHz 20~22kHz fs=44.1kHz 20~20 kHz 1 kHz 0dB dB dB % ±2 ±2 0.005 1kHz 0dB Vrms dB 2.0 110 CONDITIONS 75 ohm load UNIT Vpp dBm NOMINAL 1.0 -18 LIMIT
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 : +25 °C
1-1-2
H9300SP
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
CAUTION - VISIBLE LASER RADIATION WHEN OPEN AND INTERLOCK DEFEATED. AVOID EXPOSURE TO BEAM.
Location: Inside Top of DVD mechanism.
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')
3mm(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
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
Fig. S-1-1
10
(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) (1) Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)
c. The 1st pin of every male connector is indicated as shown.
Pin 1
Caution:
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.
1. 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) 2. 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
FFC Cable
Connector CBA
* Be careful to avoid a short circuit.
Masking Tape Tweezers Flat Pack-IC
Fig. S-1-2
1-4-1
DVD_NOTE
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
(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
Soldering Iron
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)
or
Iron Wire
Soldering Iron To Solid Mounting Point
Fig. S-1-5
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
Flat Pack-IC Tweezers
CBA
Fine Tip Soldering Iron
Fig. S-1-6
1-4-2
DVD_NOTE
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 :
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
(4) 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 >
Pin 1 of the Flat Pack-IC is indicated by a " " mark.
Fig. S-1-7
Presolder
CBA
Flat Pack-IC CBA
Fig. S-1-8
< Correct >
Grounding Band
1M
CBA
1M Conductive Sheet or Copper Plate
1-4-3
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, 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.
Q503
About REC-Safety Switch Caution: The REC-Safety Switch is directly mounted on the Main CBA. When the Deck Mechanism Assembly is removed from the Main CBA for servicing, this switch does not work automatically. What to do for preparation In order to record, press the Rec button while pushing REC-SAFETY SW on the Main CBA. 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.
TP501 S-INH
Q504
SW506
(REC-SAFETY SW)
Fig. 1
1-5-1
H9300PFS
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
REMOVAL ID/ LOC. No. PART REMOVE/*UNHOOK/ Fig. UNLOCK/RELEASE/ Note No. UNPLUG/DESOLDER 3(S-5), *CN101, *CN401 2 2-1 2-2 2-3 3 -
[6]
DVD Main CBA Unit Rear Panel VCR Chassis Unit Deck Assembly Main CBA Function CBA AFV CBA Power Supply CBA
D5
[2] Front Assembly
[4] Jack CBA
[7]
D6
3(S-6), 3(S-7) *CN001, *CN002, 5(S-8), 5(S-9) Desolder, 2(S-10) ---------Desolder, *CN2002 Desolder 3(S-11), Bracket, *(L-3) 6(S-12), 3(W-1) (S-13) (S-14) ----------
[17] Insulator
[3] Top Bracket
[16] Side Bracket [6] DVD Main CBA Unit [15] Deck Pedestal-2 [9] Deck Assembly [14] Deck Pedestal-1
[8]
D7
-
[13] Power Supply CBA
[5] DVD Mecha Assembly [7] Rear Panel
[9] [10] [11] [12] [13]
D8 D8 D8 D8 D9
4,5 -
[12] AFV CBA
[10] Main CBA
[8] VCR Chasis Unit
[11] Function CBA
2. Disassembly Method
REMOVAL ID/ LOC. No. [1] PART REMOVE/*UNHOOK/ Fig. UNLOCK/RELEASE/ Note No. UNPLUG/DESOLDER 8(S-1) 1-1 1-2 1-3 *CN505, *2(L-1), Tray 1-4 1-5 Panel, *7(L-2) 1-6 1-7 1-8 4(S-2) 3(S-3) 3(S-4), *CN501, *CN701 -
[14] [15] [16] [17]
Deck D9 Pedestal-1 Deck D9 Pedestal-2 Side Bracket Insulator D9 D9
-
Top Cover D1
(1)
(2)
(3)
(4)
(5)
[2]
Front Assembly
D2
[3] [4] [5]
Top Bracket Jack CBA DVD Mecha Assembly
D2 D3 D4
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, W=Washer *=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."
1-6-1
H9300DC
Reference Notes
CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile. Be careful not to break them. 1-1. Connect the wall plug to an AC outlet and press the OPEN/CLOSE button to open the Tray. 1-2. Remove the Tray Panel by releasing two Locking Tabs (L-1). 1-3. Press the OPEN/CLOSE button again to close the Tray. 1-4. Press the POWER button to turn the power off. 1-5. Unplug an AC cord. 1-6. Disconnect connector CN505. 1-7. Remove Screw (S-1A). 1-8. Release seven Locking Tabs (L-2) (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. D5. 2-2. Short the three short lands of FPC cable with solder before removing the FFC cable (CN101) from it. If you disconnect the FFC cable (CN101), the laser diode of pickup will be destroyed. (Fig. D5) 2-3. Disconnect Connector (CN401). Remove three Screws (S-5) and lift the DVD Main CBA Unit. (Fig. D5) CAUTION 3: When reassembling, confirm the FFC cable (CN101) is connected completely. Then remove the solder from the three short lands of FPC cable. (Fig. D5) 4. When reassembling, solder wire jumpers as shown in Fig. D8. 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 LDSW, the shaft of Cam Gear with the hole of LD-SW as shown in Fig. D8.
[4] Jack CBA (S-3)
(L-2) (B) [2] Front Assembly (A) CN505 (A) (L-2) (S-2) Tray Panel (L-1) (L-2) (A) [3] Top Bracket (S-2) (S-2)
(S-1) (S-1) [1] Top Cover (S-1) (S-1)
Fig. D1
Fig. D2
Fig. D3
1-6-2
H9300DC
CN501 (S-4)
CN701
(S-4)
[7] Rear Panel
(S-7) (S-6) (S-6) (S-7)
[5] DVD Mecha Assembly
Fig. D6 Fig. D4
(S-8)
(S-5) CN101 (S-5) CN401 A
(S-5) [6] DVD Main CBA Unit
(S-9)
(S-8) (S-9) (S-8)
DVD Mecha Assembly B
Short the three short lands by soldering
[8] VCR Chassis Unit CN002
CN001
View for A OR
Short the three short lands by soldering Slide C
Fig. D7
Pickup Unit
View for B
View for C
Fig. D5 1-6-3 H9300DC
FE Head
Cylinder Assembly AC Head Assembly
Pin
SW507 LD-SW [9] Deck Assembly CN2002 [12] AFV CBA [10] Main CBA [9] Deck Assembly Cam Gear Shaft Desolder Hole [11] Function CBA (S-10) [10] Main CBA Desolder from bottom LD-SW Pin [10] Main CBA Hole
From AC Head Assembly
Desolder
From Cylinder Assembly Desolder From FE Head
Desolder Lead with blue stripe
Lead with blue stripe
From Capstan Motor Assembly
Desolder
BOTTOM VIEW Lead connections of Deck Assembly and Main CBA
Fig. D8
1-6-4
H9300DC
(S-11) [13] Power Supply CBA [15] Deck Pedestal-2 (S-13)
Bracket (S-11) (W-1) (L-3) (S-12)
[16] Side Bracket
[17] Insulator
(W-1)
(W-1) [14] Deck Pedestal-1
(S-14)
Fig. D9
HOW TO MANUAL EJECT
1. Remove the Top Case. 2. Make a tool from a paper clip, etc., (length = approximately 50 mm, maximum diameter = approximately 3 mm) as shown below. 3. Insert the tool into the manual eject hole on the DVD Mecha. Then, push it until the tray is ejected.
Top Cover 1
Eject Hole 2 Paper clip (Available Locally)
Tray
DVD Mecha 3
4
Straightened portion = approximately 35mm Deck Assembly Length = approximately 50mm
1-6-5
H9300DC
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 "L5? " or "K" button on the remote control unit first, then the "PLAY" button (Front Panel only).
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
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)
Spec. 6.5H±1H (412.7µs±60µs)
Connections of Measurement Equipment
Oscilloscope Main CBA TP751 GND TP502 CH1 CH2 Trig. (+)
Figure 1
EXT. Syncronize Trigger Point V-Sync CH1 1.0H CH2 6.5H 0.5H
Switching Pulse
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(412.7µs) delayed position from the rising edge of the CH2 head switching pulse waveform.
1-7-1
H9300EA
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.
Fig. d VFD in Programming Mode (Example)
The appearance shown in (*2) of Fig. c is described as follows:
No. Appearance Reading... Erasing... State Sending files into the memory Erasing previous version data
BE F/W VERSION UP MODE PLEASE INSERT A DISC FOR BE F/W VERSION UP.
1 2 3
Programming... Writing new version data
EXIT:
POWER
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)
Fig. a Version Up Mode Screen BE F/W VERSION UP MODE VERSION: ******** COMPLETED Fig. b VFD in Version Up Mode SUM:7abc(*3)
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. (For closing the tray, only the "OPEN/CLOSE" button is available.) 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.
Fig. e Completed Program Mode Screen
BE F/W VERSION UP MODE VERSION: ******** Reading...(*2)
Fig. f VFD upon Finishing the Programing Mode (Example)
At this time, no buttons are available. 6. For tray opening, plug the AC cord into the AC outlet. 7. Turn the power on by pressing the power button and the tray will close.
Fig. c Programming Mode Screen
1-8-1
H9300ROM
Servo/System Control Block Diagram
BLOCK DIAGRAMS
IC501 (SERVO/SYSTEM CONTROL) KEY- 2 8 POWER LED 23 CAS LED 24 TIMER LED 25 Q515 TIMER+5V
SW507 LD-SW
FRONT JACK CBA
CN505 2 6 4 5 CN651 2 6 4 5
MAIN CBA
Q507 Q501 Q502
KEY-2 POWER-LED CAS-LED TIMER-LED
KEY SWITCH AL+5V D651 D653 POWER CAS TIMER STAND-BY
(DECK ASSEMBLY)
RESET
34 RESET
D652 KEY SWITCH D654
AC HEAD ASSEMBLY
TO DVD SYSTEM CONTROL BLOCK
AL+5V
REMOTE1
KEY- 1 7
14 REMOCON-IN 9 95 94 10 4 80 79
CL287 CONTROL HEAD
5 6
CTL(+) CTL(-)
CL504 5 6
TP502 END-S Q504 ST-S
Q506 T-REEL
PS502 S-REEL Q510 TP503 CTL
LD-SW CTL(+) CTL(-) ST-S END-S T-REEL S-REEL REC LED 26 DVD LED 29
TP501 SENS-INH
AL+5V Q511 Q508 Q509 D508 D506 D507 REC DVD VCR
SENSOR CBA
Q503 END-S
D555 S-LED
AL+5V
97 CTL 84 FF/REW-L
VCR LED 30
IC502 (MEMORY)
5 SDA 6 SCL
AL+5V VR501 SW-POINT
2 PG-DELAY
SENSOR CBA
A-MUTE-H 83 AL+5V SW506 REC-SAFETY
12 11 10 9 8 7 6 5 4 3 2 1 31 REC-SAF-SW
IIC-BUS SDA IIC-BUS SCL A-MUTE-H IIC-BUS SDA IIC-BUS SCL Hi-Fi-H-SW A-MODE OUTPUT SELECT 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 TRICK-H SECAM-H
TO AUDIO BLOCK
CYLINDER ASSEMBLY
PG SENSOR
CAPSTAN MOTOR
CAPSTAN MOTOR
M
DRUM MOTOR
M
LOADING MOTOR
M
CL502 C-F/R AL+15V/+12V AL+12V(1) P-ON+5V GND C-FG C-CONT GND D-FG LM-FWD/REV D-CONT D-PG TO POWER SUPPLY BLOCK
Hi-Fi-H-SW 19 A-MODE 61
78 C-F/R
TO Hi-Fi AUDIO BLOCK
AL+15V/+12V AL+12V(1) P-ON+5V
87 C-FG 76 C-CONT 89 81 77 90
IIC-BUS SDA 72 IIC-BUS SCL 71 D-REC-H 65 RF-SW 18 C-ROTA 15 D-V SYNC 13 D-FG LM-FWD/REV H-A-SW 16 H-A-COMP 17 D-CONT V-ENV 6 D-PG OUTPUT SELECT 74 C-SYNC 58 C-POW-SW TRICK-H 33 P-ON-H SECAM-H 32 P-DOWN-L
TO VIDEO BLOCK
C-POW-SW P-ON-H P-DOWN-L
66 67 86
1-9-1
1-9-2
H9307BLS
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
DVD-R DVD-G DVD-B JK101 15 R 11 G 7 B
FROM DVD VIDEO BLOCK
50
52
OSD CHARACTER MIX
COLOR-IN 55 TU701 TU-VIDEO 24 IC301 (Y/C SIGNAL PROCESS)
65 68 69 46 43 78 79
FRONT JACK CBA
JK653 V-IN-F CN651 7 V-IN-F CN505 7
48 50 52 54 56
TUNER IN1 IN2 FRT IN2 FRT PB/EE MUTE BYPASS
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
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
FROM DVD VIDEO BLOCK
DVD-VIDEO
TUNER IN1 PB/EE MUTE
CHARA. INS. 1/2
Y
CCD 1H DELAY
C
+
REC FM AGC
EP HEAD AMP
90 89 88 87
WF2 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 JK102 V-OUT2 19 20 V-IN2
Q104
BUFFER
WF1 TP751 V-OUT
R
FBC
CHROMINANCE SIGNAL PROCESS
R P PR P
Q103
BUFFER
61 63
Y/C MIX VXO
AGC
D-REC-H RF-SW C-ROTA D-V-SYNC H-A-SW H-A-COMP V-ENV C-SYNC TRICK-H SECAM-H
TO SERVO/SYSTEM CONTROL BLOCK
IC751 (SW) DVD 3 VCR 4 5 SW CTL
9 10 11
PB-H OUT
58 59 28 29 25 21 44 28 1 29 17 14 18 2 16
IC370 (PAL/SECAM DECTECOTR)
X301 4.43MHz Q752 OUTPUT SELECT TO SERVO/SYSTEM CONTROL BLOCK
TP301 C-PB WF3
PAL/SECAM DETECTOR
1-9-3
1-9-4
H9307BLV
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 FE-H 4 3 1 2 4 3 1 2 CL504 A-PB/REC A-COM AE-H FE-H Q404 Q403 BIAS OSC 1 2 Q406
REC-ON
AUTO BIAS
3
100
REC AMP
Q401 (PB=ON)
FE HEAD
FULL ERASE HEAD CL501 2 FE-H 1 FE-H-GND Q402 (PB=ON)
SWITCHING Q405 D-REC-OFF +5V
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
H9307BLA
Hi-Fi Audio Block Diagram
PB-AUDIO SIGNAL REC-AUDIO SIGNAL DVD AUDIO SIGNAL Mode : SP/REC
JK101 A-IN1(R) A-IN1(L) A-OUT1(R) A-OUT1(L)
1 3 2 6
MAIN CBA
IC751 (SW) VCR 12 14 DVD 13 VCR 2 DVD 1 SW CTL
9 10 11
15
JK102 A-IN2(R) A-IN2(L) A-OUT2(R) A-OUT2(L)
2 6 1 3
Q752
OUTPUT SELECT DVD-A(R) DVD-A(L)
TO SYSTEM CONTROL BLOCK TO DVD AUDIO BLOCK
JK751 A-OUT(R)
REAR
A-OUT(L) IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
76 75
SW SW ALC D.C. ALC D.C. R-CH PNR P R LIM
69 73 71 51 65 47
SW NOISE
COMP
R-CH BPF
SERIAL DATA DECODER
38 39
IIC-BUS SDA IIC-BUS SCL
JK652 A-IN(L)-F JK651 A-IN(R)-F
CN651 CN505 9 A-IN(L)-F 9 10 A-IN(R)-F 10
R-CH INSEL
DEV
VCO
LPF
DO DET
ENV DET MUTE-ON
Q451
23
A-MODE
48
FRONT JACK CBA
OUTPUT SELECT MUTE-ON
1 80 78 77 40 79
TO SERVO/ SYSTEM CONTROL BLOCK
TU701
67 7 11 9 53
HOLD PULSE L-CH INSEL
13 14
Hi-Fi-H-SW
NOISE DET LIM DEV VCO
MIX
COMP
26
CN701 2 SIF SIF 22
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
L-CH PNR
R P SW NOISE L-CH BPF R LIM
31 30 24 27
CYLINDER ASSEMBLY
Hi-Fi AUDIO (R) HEAD Hi-Fi AUDIO (L) HEAD
COMP
TO AUDIO BLOCK
N-A-REC N-A-PB
L
6 4
1-9-7
1-9-8
H9307BLH
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 T1.6A L 250V FUSE. CAUTION ! Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F001) 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. T001 AC1001 F1001 L1003 T1.6A L 250V LINE FILTER D001 - D004 BRIDGE RECTIFIER
2 20
MAIN CBA
POWER SUPPLY CBA
Q053, Q054 SW+44V CN002 1 2 6 4 CN051 1 AL+44V 2 AL+12V 6 P-DOWN AL+5V(VCR) 4 CL051 1 2 6 4 P-ON+44V P-ON(H) AL+12V Q055 SW+9V AL+12V AL+9V AL+5V Q056 SW+5V Q057 P-DOWN-L AL-30V AL+15V/+12V C-POW-SW TIMER+5V P-ON+5V
19
4
18
JUNCTION -B CBA
17
Q1001
16
15
Q1003
14
Q051, Q052 SW+15.5V
7
13
IC1041
12
+3.3V REG.
8
11
CN001 1 3 6 7 9 11 13 14
CN050 1 3 AL+15.5V(VCR) 6 AL+15.5V(DVD) 7 AL+9V 9 AL+3.3V 11 F2 13 F1 14
AL+5V(DVD) AL-30V
CL050A 1 3 6 7 CL050B 9 11 13 14
IC1052 Q1054 IC1053
+1.8V REG.
IC1001 ERROR VOLTAGE DET
4 1
SHUNT REG.
JUNCTION -A CBA
Q1055
Q1008
Q1057
3 2
CN1001 1 2 3 4 16 17 18 19 14 15 5 6 20 Q1053
P-ON+1.8V P-ON+1.8V EV+2.5V EV+2.5V EV+3.3V P-ON+3.3V P-ON+3.3V P-ON+3.3V EV+9V EV+9V P-ON+5V P-ON+5V PWRCON
HOT
IC1002 REG (SHUNT REGULATOR)
Q1051, Q1052 SW+12V
DVD P-ON+3.3V DVD P-ON+5V DVD P-ON+12V EV+5V -FL F2 F1
1-9-9
1-9-10
H9307BLP
DVD System Control Block Diagram
BLOCK DIAGRAMS < DVD Section >
IC601 (DVD HOST PROCESSOR) IC301 (FRONT END PROCESSOR) TFWD TREV TIN TOUT SCK STDIO SEN MUTE PS 200 201 187 188 TFWD TREV TIN TOUT IC2001 (FRONT PANEL CONTROL)
FROM/TO RF SIGNAL PROCESS /SERVO BLOCK DIAGRAM
42 41 59 60 70 72 10 46 47
TFWD TREV TIN TOUT SCK STDIO SEN MUTE PS
FL2001 1G 23 ~ GRID
+3.3V
5
7G 17 IC605 RESET 4 Q701 124 RESET CN501 21 22 23 24 26 CN1001 21 22 23 24 26 CN2002 2 5 1 3 CN2001 2 2 FP-STB 5 28 FP-DIN 1 27 FP-DOUT 3 1 FP-CLK a/KEY-1 b/KEY-2 c/KEY-3 d/KEY-4 e f g h i
7 8 9 10 11 12 13 14 16
FIP
HANG 48
CD/DVD CFE CAS STANDBY
71 62 63 64
CD/DVD CFE CAS STANDBY
VFD-STB 3 VFD-DIN 1 VFD-DOUT 2 VFD-CLK 204 REMOTE 125
FP-STB FP-DIN FP-DOUT FP-CLK REMOTE2
FP-STB FP-DIN FP-DOUT FP-CLK
~
SEGMENT
READY 49 /FERS 82 OSCI 23 OSCO 24 X301 (16.9344MHz)
IC606 (INVERTER) 2 4
208 READY 186 /FERS
K2 4 K1 3 120 CLOCK
13 ~ 16 26 CPUADR0 33 CPUADR17 35 ~ 40 FROM/TO DVD SIGNAL PROCESS BLOCK DIAGRAM DATA BUS NINT1 NINT2 WAIT /RE /WEL CS1 RESET 84 CPUDT0 ~ ~ 91 CPUDT7 76 NINT1 77 NINT2 1 WAIT 2 /RE 3 /WEL 6 CS1 11 RESET ~
ADDRESS BUS
BUSCLR SDA SDA SCL SCL
53 52 51 50 79
X601
27MHz
22 BUSCLR 20 SDA 21 SCL
~
+3.3V
RM2001 REMOTE SENSOR
KEY OUT 44
127 IRQ2
IC102 (OP AMP)
FG-IN 80
14
12
KEY MATRIX
CL2003 8 10 6 5 3 2 1
REMOTE1 REMOTE2 K1 K2 KEY-1 KEY-2 KEY-4
CL2004 8 10 6 5 3 2 1
TO SERVO/SYSTEM CONTROL BLOCK
REMOTE1
FG SENSOR
CN401 10 FG-IN
FG CBA
RELAY CBA
DVD MAIN CBA UNIT
MAIN CBA
FUNCTION CBA
1-9-11
1-9-12
H9307BLSD
RF Signal Process/Servo Block Diagram
DATA(VIDEO/AUDIO) SIGNAL
FOCUS SERVO SIGNAL
TRACKING SERVO SIGNAL
SLIDE SERVO SIGNAL
DISK SERVO SIGNAL
PICK-UP UNIT
CN101 6 9 10 7 4 5 21 47 57 58 59 60 62 63
IC101 (RF SIGNAL PROCESS) HOLD A B C D F E CD/DVD 41 46 VGA INPUT MATRIX EQ VEL ADJ BDO DET OFTR DET 39 MIRROR DET TRACKING BALANCE TRACKING ERROR DET 18 6 FOCUS BALANCE CN101 Q102 CD-LD 20 AMP DVD-LD 12 AMP Q101 PD-MONI 11 GND(DVD-PD) 14 GND(LD) 13 GND(CD-PD) 19 IC103 (SW) 1 3 6 4 FS(+) FS(-) TS(+) TS(-) CN101 17 16 15 18 12 11 14 13 IC401 (SERVO DRIVE) FOCUS MOTOR DRIVE TRACKING MOTOR DRIVE MUTE LM(+) LM(-) SP(-) SP(+) SL(+) SL(-) TRAY-IN GND TRAY-OUT CN401 1 2 6 7 9 8 3 5 4 10 9 18 17 15 16 LOADING MOTOR DRIVE SPINDLE MOTOR DRIVE SLIDE MOTOR DRIVE + + POWER SAVE 6 IC201 (SERVO DSP) 115 DAC1 4 2 3 1 FOCUS ERROR DET 22 7 20 11 13 14 12 31 30 40
DVD MAIN CBA UNIT
TESTSG ARF NARF FROM/TO DVD SIGNAL PROCESS BLOCK DIAGRAM
DETECTOR
LPC AMP SERIAL I/F
STANDBY SCK STDIO SEN CD/DVD
TS
FS
5
114 DAC0
FBAL TBAL OFTR BDO AD1
66 65 51 52 118 IC102 (OP AMP)
RELAY CBA
LOADING MOTOR SPINDLE MOTOR SLIDE MOTOR M M M
21 1 2 24 23 22 27 26 25 4
FROM/TO DVD SYSTEM CONTROL BLOCK DIAGRAM 7 CFE
AD0 117 TRCRS 90
5 8
68 SPDRV V-REF 67 TRSDRV
10 CAS
AD2 119 AD3 120
3
1
TRAY -IN
+3.3V
TRAY-OUT
MUTE TFWD TREV TIN PS TOUT
SW CBA
1-9-13
1-9-14
H9307BLRF
DVD Signal Process Block Diagram
DATA(VIDEO/AUDIO) SIGNAL
DVD MAIN CBA UNIT
IC201 (DVD SIGNAL PROCESS)
PLL VCO PARA0 PARA1 PARA2 PARA3 PARA4 PARA5 PARA6 PARA7 172 168 166 164 160 158 151 149
FROM/TO RF SIGNAL PROCESS/SERVO BLOCK DIAGRAM
ARF NARF TESTSG
111 110 82
DATA SLICER
DVD DEMODULATOR
VIDEO/AUDIO INTERFACE
PARA0-PARA7
TO DVD VIDEO BLOCK DIAGRAM
BCA
MEMORY MANAGER
30 ~ ADDRESS BUS FROM/TO DVD SYSTEM CONTROL BLOCK DIAGRAM 22 17 ~ 9 44 CPUDT0 ~ 37 CPUDT7 2 NINT1 5 NINT2 6 WAIT 36 /RE 35 /WEL 34 CS1 47 RESET ~
CPU INTERFACE
CPUADR0 CPUADR17 ~
DATA BUS NINT1 NINT2 WAIT /RE /WEL CS1 RESET
X201 (16.9344MHz)
79 OSCI1 80 OSCO1
1-9-15
1-9-16
H9307BLD
DVD Video Block Diagram
DATA(VIDEO) SIGNAL
DATA(AUDIO) SIGNAL
VIDEO SIGNAL
DATA(VIDEO/AUDIO) SIGNAL
IC601 (DVD HOST PROCESSOR)
CPU
FROM DVD SIGNAL PROCESS BLOCK DIAGRAM
CACHE SUBSYSTEM FRONT-END & LINK INTERFACE
PCM-BCK PCM-DATA0 PCM-SCLK PCM-LRCLK SPDIF
PARA0-PARA7
13 PARA7
~
6 PARA0
INTERNAL PERIPHERALS PORTS
CENTRAL COMMAND PORT
AUDIO DECODER
ST20 ARBITER & MEMORY CONTROLLER A-MUTE
TO DVD AUDIO BLOCK DIAGRAM
51 52 55 56 57
~
TO DVD AUDIO BLOCK DIAGRAM
ADAC-MD ADAC-MC ADAC-ML
191 190 189 192
A-MUTE ADAC-MD ADAC-MC ADAC-ML
I/F
CD FIFO
SDRAM BLOCK MOVE
IC1402 (VIDEO DRIVER)
JK1401 S-VIDEO OUT
IC602 (8Mbit FLASH MEMORY)
PROGRAMMABLE CPU INTERFACE
Y
SDRAM ARBITER
32 33
WF1
CN701 8 DVD-VIDEO-Y 12 DVD-VIDEO-C CN1601 8 12 6 2
3 1 2
4
C
~
~
~
16 A18 8 1 48
~
~
A0
~
25
ADDR1-ADDR20
161 170 ADDR1 173 ADDR20 182 141 DATA0 158 DATA15
4dB AMP 4dB AMP 4dB AMP 4dB AMP 4dB AMP 4dB AMP
LPF
2dB AMP 2dB AMP 2dB AMP 2dB AMP 2dB AMP 2dB AMP
DRIVER
27
VIDEO DECODER
VIDEO FILTERING
OSD, SP DECODER & MIXING
WF3 DENC
34 25 27 26 CN701 10 6 4 2
WF2
CN1601 DVD-VIDEO-CVBS 10 DVD-VIDEO-B 6 DVD-VIDEO-R 4 DVD-VIDEO-G 2 4
LPF
DRIVER
33
JK1404 DVD-VIDEO
DQ15 45 WE 11 CE 26 OE 28
DATA0-DATA15
~
CAS RAS DQML DQMU WE CS
AD13
DQ15
66 ~ 73 58 ~ 63
20 ~ 26 29 ~ 35
AD13 AD0
IC604 (64Mbit SDRAM)
CAS RAS LDQM UDQM WE CS
DQ15
1-9-17
~
DQ0
~
AD0
84 ~ 93 97 ~ 102 77 76 79 80 78 74
2
~ 13 42 ~ 53
~
DQ0
128 DQM0 132 CS3 117 OE
~
DQ0
29
SHARED SDRAM INTERFACE
~
~
LPF
DRIVER
30
14
LPF
DRIVER
21
DVD-B TO VIDEO BLOCK
16
LPF
DRIVER
18
DVD-R
12
LPF
DRIVER
24
DVD-G
17 18 15 39 16 19
~
DVD MAIN CBA UNIT
MAIN CBA
1-9-18
H9307BLVD
DVD Audio Block Diagram
DATA(AUDIO) SIGNAL
AUDIO SIGNAL
IC1204 FIBER OPTIC TRANS MODULE
3
WF6
CN701 21 SPDIF CN1601 21 Q1351 BUFFER JK1202 DIGITAL AUDIO OUT
IC801 (AUDIO DAC)
WF4 SPDIF PCM-BCK PCM-DATA0 PCM-LRCLK
4X/8X OVERSAMPLING DIGITAL FILTER /FUNCTION CONTROLLER ENPHANCED MULTI-LEVEL DELTA-SIGMA MODULATOR DAC DAC LPF+AMP LPF+AMP L-CH R-CH 7 8 CN701 16 18 15 17 19 DVD-AUDIO-L DVD-AUDIO-R DVD-A-L-MUTE DVD-A-R-MUTE DVD-A-MUTE CN1601 16 18 15 17 19 3 2 6 5
IC1201 (AMP) 1 DVD-A(L) TO AUDIO BLOCK DIAGRAM
1 2 3
SERIAL PORT
WF5
7
DVD-A(R)
VREF ZERO DETECT 13 14 15 SERIAL CONTROL SYSTEM CLOCK +3.3V Q1203 Q1201 12 11 Q1202 Q1204
FROM DVD VIDEO BLOCK DIAGRAM
ADAC-MD ADAC-MC ADAC-ML
16
PCM-SCLK A-MUTE
+3.3V
DVD MAIN CBA UNIT
MAIN CBA
1-9-19
1-9-20
H9307BLAD
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.
Capacitor Temperature Markings
Mark (B) (F) (SR) (Z) Capacity change rate Standard temperature 20°C 20°C 20°C 20°C Temperature range -25~+85°C -25~+85°C -25~+85°C -10~+70°C
±10%
+30 - 80%
±15%
+30 - 80%
Capacitors and transistors are represented by the following symbols.
CBA Symbols
(Top View) (Bottom View) + Electrolytic Capacitor
Schematic Diagram Symbols
Digital Transistor
(Bottom View)
Transistor or Digital Transistor
E C B (Top View)
(Top View)
NPN Transistor
ECB ECB
PNP Transistor
(Top View)
(Top View)
NPN Digital Transistor
ECB ECB
PNP Digital Transistor
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. Mode: SP/REC 6. Voltage indications for PLAY and REC modes on the schematics are as shown below:
Unit: Volts
1 5.0
2
3 5.0 (2.5)
PLAY mode REC mode
The same voltage for both PLAY & REC modes
Indicates that the voltage is not consistent here.
7. 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
8. 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 1/8 Schematic Diagram < VCR Section >
* 1 Note: it is necessary to replace one or more of the following Diodes, When
all three should be replaced: D506, D507, D508.
1-10-3
1-10-4
1-10-5
H9307SCM1
Main 2/8 Schematic Diagram < VCR Section >
1-10-6
1-10-7
1-10-8
H9307SCM2
Main 3/8 Schematic Diagram < VCR Section >
1-10-9
1-10-10
1-10-11
H9307SCM3
Main 4/8 Schematic Diagram < VCR Section >
1-10-12
1-10-13
1-10-14
H9307SCM4
Main 5/8 Schematic Diagram < VCR Section >
1-10-15
1-10-16
H9307SCM5
Main 6/8 Schematic Diagram < VCR Section >
1-10-17
1-10-18
H9307SCM6
Main 7/8 Schematic Diagram < VCR Section >
1-10-19
1-10-20
H9307SCM7
Main 8/8 Schematic Diagram < VCR Section >
1-10-21
1-10-22
H9307SCM8
Power Supply Schematic Diagram < VCR Section >
CAUTION ! Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F001) 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. 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 FUSE.
1-10-23
1-10-24
H9307SCP
Function Schematic Diagram < VCR Section >
FL2001 MATRIX CHART
7G a b c d
7G 6G 5G 4G 3G 2G 1G
6G a b c d e f g
5G a b c d e f g
4G a b c d e f g
3G a b c d e f
2G a b c d e f
1G
STANDBY REPEAT
1 2 3 4 5
A -B
e
STANDBY REPEAT A-B
TITLE
CHP.
c f
TRK.
a d g b e
DVD VCD PBC
1 3 5
f
2 4
g h i
TITLE
DVD PBC CHP. TRK. CD V
g g
1-10-25
1-10-26
H9307SCF
Front Jack Schematic Diagram < VCR Section >
* 2 Note: it is necessary to replace one or more of the following Diodes, When
all four should be replaced: D652, D653, D654, D655.
H9307SCJ
1-10-27
1-10-28
AFV Schematic Diagram < VCR Section >
1-10-29
1-10-30
H9307SCAFV
Main CBA Top View Sensor CBA Top View ( End Sensor )
BHB300F01011-A
WF1 TP751 V-OUT
BHB300F01011-B
WF3 TP301 C-PB
Sensor CBA Top View ( Start Sensor )
BHB300F01011-A
BHB300F01011-B TP502 END-S VR501 SW-P
TP503 CTL WF2 TP504 RF-SW
TP501 S-INH
1-10-31
1-10-32
1-10-33
BH9311F01013-A
Main CBA Bottom View
1-10-34
1-10-35
1-10-36
BH9311F01013-A
Function CBA Top View
Function CBA Bottom View
BH9311F01013-B
1-10-37
1-10-38
Front Jack CBA Top View
Front Jack CBA Bottom View
BH9311F01013-C
1-10-39
1-10-40
Power Supply CBA Top View
Power Supply CBA Bottom View
CAUTION ! Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F001) 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.
NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal.
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.
CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.
1-10-41
1-10-42
BH9311F01023
AFV CBA Top View
AFV CBA Bottom View
Junction-A CBA Top View
Junction-A CBA Bottom View
BH9311F01013-E
Junction-B CBA Top View
Junction-B CBA Bottom View
BHC400F01091
BH9311F01013-F
1-10-43
1-10-44
DVD Main 1/4 Schematic Diagram < DVD Section >
1-10-45
1-10-46
1-10-47
H9307SCD1
DVD Main 2/4 Schematic Diagram < DVD Section >
1-10-48
1-10-49
1-10-50
H9307SCD2
DVD Main 3/4 Schematic Diagram < DVD Section >
1-10-51
1-10-52
1-10-53
H9307SCD3
DVD Main 4/4 Schematic Diagram < DVD Section >
1-10-54
1-10-55
1-10-56
H9307SCD4
WAVEFORMS
WF1
(TP751 of Main CBA)
V-OUT E-E 10usec
50mV x 10
WF1 UPPER
(TP751 of Main CBA) of Main CBA)
WF2 LOWER (TP302
V-OUT RF-SW
0.1V x 10 0.5V x 10 50usec
WF5 UPPER
(TP301 of Main CBA) of Main CBA)
WF2 LOWER (TP302
C-PB RF-SW
10mV x 10 0.5V x 10 5msec
1-11-1
H9307WFP
WAVEFORMS
NOTE:
Input CD: 1kHz PLAY (WF4~WF6) DVD: POWER ON (STOP) MODE (WF1~WF3)
WF1
Pin 5 of CN1601
WF4
Pin 13 of CN1601
VIDEO-Y
0.2V
20usec
AUDIO-L
1V
0.5msec
WF2
Pin 7 of CN1601
WF5
Pin 15 of CN1601
VIDEO-CVBS 0.5V
20usec
AUDIO-R
1V
0.5msec
WF3
Pin 9 of CN1601
WF6
Pin 18 of CN1601
VIDEO-C
0.2V
20usec
SPDIF
1V
0.2usec
1-11-2
H9307DWFP
WIRING DIAGRAM < VCR SECTION >
REAR OPTICAL AUDIO OUT S-VIDEO OUT DIGITAL AUDIO OUT AUDIO OUT (R) AUDIO OUT (L) ANT-IN ANT-OUT
VIDEO IN
FRONT
AUDIO IN (R)
AUDIO IN (L)
CN651 1 2 3 4 FRONT JACK CBA 5 (BH9311F01013C) 6 7 8 9 10
GND KEY-2 AL+5V CAS-LED TIMER-LED POWER-LED V-IN-F GND A-IN(L)-F A-IN(R)-F
CN505 1 2 3 4 5 6 7 8 9 10
AC CORD
JK101,102
1 3 2 4 6 8 10 12 14 16 18 20
CN002 1 2 3 4 5 6
AL+44V AL+12V GND AL+6V(VCR) GND AL+6V(P-DOWN)
CN051 1 2 3 4 JUNCTION 5 -B CBA 6
1 2 3 4 5 6
CL051 AL+44V AL+12V GND AL+6V(VCR) GND AL+6V(P-DOWN)
(BH9311F01013F)
(DECK ASSEMBLY)
AC HEAD ASSEMBLY
AUDIO ERASE HEAD AUDIO HEAD CONTROL HEAD CL287 AE-H FE-H A-COM A-PB/REC CTL(+) CTL(-) CL504 AE-H FE-H A-COM A-PB/REC CTL(+) CTL(-)
5 7 9 11 13 15 17
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
19 21
(BH9311F01023)
CN001 1 2 3 4 5 6 7 8 9 10 11 12 POWER 13 SUPPLY CBA 14
CN050 AL+6V(DVD) 1 GND 2 AL-30V 3 4 GND GND 5 AL+15.5V(VCR) 6 AL+15.5V(DVD) 7 GND 8 AL+9V 9 GND 10 AL+3.3V 11 GND 12 F2 13 14 F1
1 2 3 4 5 6 7 1 2 3 4 5 6 7
M
CYLINDER ASSEMBLY
PG SENSOR LOADING MOTOR
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
12 11 10 9 8 7 6 5 4 3 2 1
CL502 C-F/R AL+15V/+12V AL+12V(1) P-ON+5V GND C-FG C-CONT GND D-FG LM-FWD/REV D-CONT D-PG
JUNCTION -A CBA (BH9311F01013E)
CL050A AL+6V(DVD) GND AL-30V GND GND AL+15.5V(VCR) AL+15.5V(DVD) CL050B GND AL+9V GND AL+3.3V GND F2 F1
CN1001 P-ON+1.8V P-ON+1.8V EV+2.5V EV+2.5V P-ON+5V P-ON+5V GND GND GND GND GND GND GND EV+9V EV+9V EV+3.3V P-ON+3.3V P-ON+3.3V P-ON+3.3V PWRCON FP-STB FP-DIN FP-DOUT FP-CLK OC-KEY REMOTE2 CN1601 PAL DVD-VODEO-G GND DVD-VIDEO-R ASPECT DVD-VIDEO-B GND DVD-VIDEO-Y GND VIDEO-CVBS GND DVD-VIDEO-C GND GND DVD-A-L-MUTE DVD-AUDIO-L A-R-MUTE DVD-AUDIO-R DVD-A-MUTE AUDIO+5V SPDIF
1 2 3 4 5 6 7 8 9 10 11 12 TO DVD MAIN 13 CBA UNIT 14 CN501 15 16 17 18 19 20 21 22 23 24 TO WIRING 25 DIAGRAM 26
CN2002 1 2 3 4 5 6 7 8 9 10 CL2003 1 2 3 4 5 6 7 8 9 10 FP-DOUT FP-STB FP-CLK GND FP-DIN GND F2 -FL F1 EV+5V KEY-4 KEY-2 KEY-1 GND K2 K1 DVD POWER REMOTE1 OC-KEY REMOTE2
CN2001 1 2 3 4 5 6 7 8 9 10 CL2004 1 2 3 4 5 6 7 8 9 10 FUNCTION CBA
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)
AFV CBA (BHC400F01091)
CN1 1 2 3 4 5 6 7 8 9
TU-AUDIO 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
SENSOR CBA (BHB300F01011)
1 2 3 4 5 6 7 8 9 TO DVD MAIN 10 CBA UNIT 11 CN701 12 13 14 15 16 17 18 19 20 21
(BH9311F01013B)
SENSOR CBA (BHB300F01011)
MAIN CBA (BH9311F01013A)
1-12-1
1-12-2
H9307WI
WIRING DIAGRAM< DVD SECTION>
DVD MECHA
LOADING MOTOR M TRAY-OUT
RELAY CBA
SW CBA
SPINDLE MOTOR M SLIDE MOTOR M
TRAY-IN
FG CBA
FG SENSOR
CN3001 1 2 3 4 5 6 7 8 9 10 11
CN401 LM(+) 1 LM(-) 2 TRAY-IN 3 TRAY-OUT 4 GND 5 SP(-) 6 SP(+) 7 SL(-) 8 SL(+) 9 FG-IN 10 P-ON+3.3V(D) 11
1 2 3 4 5 6 7
CN302 /FERS GND RDY-HIF SCL SDA BUSCLR SENSJ
DVD MAIN CBA UNIT
CN501 P-ON+1.8V P-ON+1.8V EV+2.5V EV+2.5V P-ON+5V P-ON+5V GND GND GND GND GND GND GND EV+9V EV+9V EV+3.3V P-ON+3.3V P-ON+3.3V P-ON+3.3V PWRCON FP-STB FP-DIN FP-DOUT FP-CLK OC-KEY REMOTE2
1 2 3 4 5 6 7 8 9 10 11 12 13 TO MAIN CBA CN1001 14 (JW003) 15 16 17 18 19 20 21 22 23 TO WIRING 24 DIAGRAM 25 26
(NO CONNECTION)
PICK UP UNIT
DETECTOR
TS
FS
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
CN101 GND VREF P-ON+5V F E A D NU B C PD-MONI DVD-LD GND(LD) GND(DVD-PD) TS(+) FS(-) FS(+) TS(-) GND(CD-PD) CD-LD CD/DVD
CN701 PAL DVD-VODEO-G GND DVD-VIDEO-R ASPECT DVD-VIDEO-B GND DVD-VIDEO-Y GND DVD-VIDEO-CVBS GND DVD-VIDEO-C GND GND DVD-A-L-MUTE DVD-AUDIO-L DVD-A-R-MUTE DVD-AUDIO-R DVD-A-MUTE AUDIO+5V SPDIF
CN201 MONI0 MONI2 JITTER GND
1 2 3 4 5 6 7 8 9 TO MAIN CBA 10 CN1601 11 (JW004) 12 13 14 15 16 17 18 19 20 21
1 2 3 4
(NO CONNECTION)
1-12-3
1-12-4
H9307WID
IC PIN FUNCTION DESCRIPTIONS
[ VCR Section ]
IC501( SERVO / SYSTEM CONTROL IC )
Pin IN/ No. OUT 1 IN Signal Name SC2-IN PGDELAY POWSAF END-S AFC V-ENV KEY-1 KEY-2 LD-SW "H" 4.5V, "L" 1.0V Active Function Level 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 L/Hi-z 26 A/D 27 28 A/D 29 A/D A/D 31 A/D A/D A/D A/D A/D H/Hi-z L H/L H/L H/L 45 H/L 46 H/L L 47 48 49 50 IN IN NUB PG/LP OUT OSCOUT 32 33 34 35 36 37 38 39 40 41 42 43 44 30 Pin IN/ No. OUT 23 24 25 "POWER" LED Signal Output "CASSETTE" LED OUT CAS LED Signal Output TIMER "TIMER" LED Signal OUT LED Output "REC" LED Signal OUT REC LED Output N.U. Not Used SCART 2 RGB OUT RGBThrough Control THROUGH Signal OUT DVD LED "DVD" LED Signal Output OUT VCR LED "VCR" LED Signal Output Recoding Safety SW REC-SAF- Detect (With Record IN SW tab="L"/ With out Record tab="H") IN SECAMH SECAM Mode at High Signal Name POWER OUT LED Function Active Level H/L H/L H/L H/L L/Hi-z H/L H/L H/L
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
H/L H L H/L L -
Special Playback = OUT TRICK-H "H" in SECAM Mode IN IN IN IN IN RESET XCIN Vcc XIN Vss N.U. DVD8PIN-IN CLKSEL OSCIN System Reset Signal (Reset="L") Sub Clock Sub Clock Vcc Main Clock Input Main Clock Input Vss(GND) Not Used SCART 8Pin DVD Input Control Signal Clock Select (GND) Clock Input for letter size Clock Output for letter size Not Used PG/LP
OUT ST-S N.U. N.U.
OUT XCOUT
OUT D-VSYNC IN
OUT XOUT
REMOCO Remote N 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 VPS/PDC Data Receive = "L" Not Used Not Used
OUT C-ROTA OUT H-A-SW IN H-ACOMP
OUT RF-SW OUT Hi-Fi-HSW IN DAVN-L N.U. N.U.
FSC-IN 4.43MHz Clock Input [4.43MHz] OSDVss OSDVss OSD Video Signal OSD-V-IN Input
1-13-1
H9307PIN
Pin IN/ No. OUT 51 52 53 54 -
Signal Name N.U.
Function Not Used OSD Video Signal Output OSDVcc LPF Connected Terminal (Slicer) SECAM or MESECAM Chroma Video Input Signal at Super Impose Not Used Not Used Composite Synchronized Pulse
Active Level -
Pin IN/ No. OUT 79 80 IN IN
Signal Name S-REEL T-REEL
Function Supply Reel Rotation Signal Take Up Reel Rotation Signal
Active Level PULSE PULSE H/L/ Hi-z L H L L PULSE -
OUT OSD-VOUT OSDVcc HLF COLORIN N.U. N.U. C-SYNC
81 82 Z/L PULSE H/L H/L L 91 L 92 L/Hi-z H H/L H/L H/L H/L PWM PWM H/L 99 100 IN AVcc AGC 97 98 93 94 95 96 N.U. 83 84 85 86 87 88 89 90
OUT LM-FWD/ Loading Motor REV Control Signal DVDOUT POWER DVD Power Control Signal
55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
IN IN
OUT A-MUTE- Audio Mute Control H Signal (Mute = "H") CTL Amp Gain OUT FF/REW- Switching Signal (FF/ L REW="L") IN IN IN IN N.U. Not Used P-DOWN- Power Voltage Down L Detector Signal C-FG AMPVss D-FG D-PG Capstan Motor Rotation Detection Pulse AMPVss (GND)
OUT 8POUT-1 SCART 1 8Pin Output Control Signal OUT 8POUT-2 SCART 2 8Pin Output Control Signal IN A-MODE N.U. N.U. N.U. Hi-Fi Tape Detection Signal Not Used Not Used Not Used
Drum Motor Rotation PULSE Detection Pulse Drum Motor Pulse Generator Not Used PULSE H/L H/L PULSE H/L/ Hi-z
OUT D-REC-H Delayed Record Signal COUT POWER- Capstan Power Switching Pulse SW IN P-ON-H N.U. N.U. N.U. Power On Signal at High Not Used Not Used Not Used IIC BUS Control Clock IIC BUS Control Data Not Used Output Select DVD Power Monitor Signal (P-on="H", P-off="L") Capstan Motor Control Signal Drum Motor Control Signal Capstan Motor FWD/ REV Control Signal (FWD="L"/REV="H")
AMPVRE V-Ref for CTL AMP FIN C C Terminal Playback/Record Control Signal (-) Playback/Record Control Signal (+) CTL AMP Connected Terminal
OUT CTL (-) OUT CTL (+) AMPC
OUT IIC-BUSSCL IN/ IIC-BUSOUT SDA OUT N.U. OUTPUTSELECT DVDPOWERMONITOR
CTLAMP To Monitor for CTL out AMP Output AMPVcc AMPVcc A/D Converter Power Input/ Standard Voltage Input IF AGC Control Signal
OUT C-CONT OUT D-CONT OUT C-F/R
Notes: Abbreviation for Active Level: PWM -----Pulse Wide Modulation A/D--------Analog - Digital Converter
1-13-2
H9307PIN
IC2001 [ PT6315-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 In In In In Out Out Out Out Out In In Out Out Signal Name CLK STB K1 K2 VSS VDD Name Function Clock Input Serial Interface Strobe Key Data 1 Input Key Data 2 Input GND Power Supply
a / KEY-1 Segment Output / Key Souce-1 b / KEY-2 Segment Output / Key Souce-2 c Segment Output
d / KEY-4 Segment Output/ Key Souce-4 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
1-13-3
H9307PIN
LEAD IDENTIFICATIONS
BN1F4M-T BA1F4M-T KTA1266(GR) KTC3199(Y,GR,BL) 2SC2785(J,H,F,K) KRC103M KRA103M BN1L3Z(P) KRA110M KTA1273(Y) KTA1281(Y) KRA104M BN1L4M-T KRC110M-AT BA1L3Z-T 2SC1815-BL(TPE2) 2SC1815-Y(TPE2) 2SC1815-GR(TPE2) 2SC2120-Y(TPE2) KTC3203(Y) KTC3205 (Y) 2SA966(Y) 2SC2001(K,L) 2SA1020(Y) 2SB892(S) 2SC3266-Y(TPE2) 2SA1015-GR(TPE2)
E C B
FS2KM-18A KIA78R33PI PQ3RD13(1A) KIA78R33API
NJM4558D KIA4558P 8 5
1
4
E C B
G D S
LTV-817(B,C)-F PT6315-S(-TP) 28 15 34 MM1567AJ 18
K E
A
C
QSZAB0RMB131 LA71750AM-MTB
80 81 51 50
PQ018EF01SZ
1
14 1 17
100 31 1 30
0C-0805T-002 GP1FA512TZV
TC4053BF(N) BU4053BCF-E2 16 9
1234
MID-32A22 PT204-6B-12
LA70100M-TRM 30 16
BR24C02F-W AT24C02N-10SC M24C02-MN6T CAT24WC02JI
5
8
1 2 3
1
8
1 15
C E
1
4
LA72646M-A-MPB KIA431-AT
61 60 41
MSP3417G-QG-B8-V3 MSP3417G-QG-B8
33
40
23 22
34
R A K
80
21 1
44 1 11
12
Note: A: Anode K: Cathode E: Emitter C: Collector B: Base R: Reference S: Source G: Gate D: Drain
20
1-14-1
H9307LE
DECK MECHANISM SECTION
DVD PLAYER & VIDEO CASSETTE RECORDER
DCVR-2700
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 Fixtures and Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2-1 Mechanical Alignment Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3-1 Disassembly / Assembly Procedures of Deck Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4-1 Alignment Procedures of Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4-9
STANDARD MAINTENANCE
Service Schedule of Components
H: Hours Deck Ref.No. B2 B3 B8 B27 B31 B573,B574 B37 B52 *B73 B133 B410 B414 B416 B525 Part Name Cylinder Assembly Loading Motor Assembly Pulley Assembly Tension Lever Sub Assembly AC Head Assembly Reel S, Reel T Capstan Motor Cap Belt FE Head Idler Assembly Pinch Arm (A) Assembly M Brake S Assembly M Brake T Assembly LDG Belt 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
2-1-1
U25MEN
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.
A/C Head
Upper Cylinder Do Not !
Video Head
Cleaning Stick
2-1-2
U25MEN
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.
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
DUALPALMA
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.)
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
Not good
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
DUALPALMA
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