Page 1
FILE NO. Service Manual DVD Player + HV-DX300A Video Cassette (Product Code: 1 682 339 26) Recorder (Australia) HV-DX300A/NZ (Product Code: 1 682 339 27) (New Zealand) P AL REFERENCE No. SM0905001...
SPECIFICATIONS Power 200-240V~, 50/60Hz Consumed electricity Weight 4.6kg Dimension (W x H x D) 435mmx93mmx255mm(Without Foot), 435mmx98mmx255mm(With Foot) Operative temperature +5°C~40°C Installation condition Horizontal / Relative humidity under 80% Laser output 5mW (continuous wave max.) Wave length 635nm (DVD), 730nm (CD) Signal type PAL COLOR Antenna Input/output...
ADVANTAGES OF THIS PRODUCT • DVD, VCD, CD, CD-R(MP3), CD-RW, VHS • Watching DVD for recording broadcast • Integrated remote control (VCR, DVD) • VISS function • Multiplex sound playback/record • High Sound Quality of 6 head Hi-Fi • Simple record function •...
Page 5
ADVANTAGES OF THIS PRODUCT • Multi Subtitle function (DVD) The subtitle can be seem in up to 32 languages. In the case of SVCD or VCD, it depends on the disc. (The number of subtitle languages depends on the software.) •...
TROUBLESHOOTING 1. POWER CIRCUIT CAUTION You must use insulated transformer during the first part test of POWER circuit. No power Exchange POWER CORD POWER cord is ok? Is 400V~200V voltage Check F801. obtained at C804 +? Output voltage of 2 Check IC501, IC701 parts is normal? Check...
Page 7
TROUBLESHOOTING 2. SYSTEM CIRCUIT A. LED DISPLAY No LED display. Is 5V obtained at IC701 Check R588, D857, L503, L860 pin #9, 25? Oscillation at IC701pin #1? Exchange IC701. Specific GRID/SEG doesn t function. Check IC 701 pin #22~24, 27, GRID output at PORT of IC701? 28, 30, 31.
Page 8
TROUBLESHOOTING B-1. Bad playback quality (1) Noise appears on the playback screen. Is noise diminished by tracking Re-adjust PATH. adjustment. Noise band is trembled up and Noise appears on the screen even Re-adjust PATH. down? though changing tape. Is there CTL pulse at IC501 Re-adjust the height of AC HEAD.
Page 9
TROUBLESHOOTING C. No broadcasting signal received No broadcasting signal received Is the output at IC501 pin# 61(CLK), Check IC 501. 60 (DATA) normal? Is SIF,Video output at TMI(RF101) Check TMI (RF101) Block. pin#16,19 normal? Is Video Signal input at IC501 Check IC301.
Page 10
TROUBLESHOOTING D. No CASSETTE Loading Cassette tape isn t inserted. Is 5V voltage obtained at Loading Check at EVER 14V parts IC501 pin#2? Check Q850. Is 14V voltage obtained at Check D851 and POWER circuit. Capstan Motor P501 pin#2? Connect Capstan and Loading Motor. Is 13V voltage obtained at Each Check connector and Capstan Motor.
Page 11
TROUBLESHOOTING F. DRUM Motor stops DRUM Motor stops. Is 14V voltage obtained at P501 Check EVER 14V pin#8? (Q850). Is DRUM PWM fit to IC 501 Check DRUM PG/FG pin#76? (IC 501 pin# 90). Is 2.6V voltage obtained at Check R534,R535,C519,C520. P501 pin#12? Check Capstan Motor and DRUM Motor.
TROUBLESHOOTING 3. VIDEO circuit A. EE screen doesn t appear EE MODE Picture NG Is Video signal input at Check IF and LINE IN JACK. IC301 pin#48,50,52,54? Is 5V supplied at Check POWER circuit. pin#42,55,72,91of IC301? Check IC501 Is C.S, DATA, CLOCK signal pin #58,71,72.
Page 13
TROUBLESHOOTING B. Playback picture doesn t appear PB video signal missing. Is Envelope output from IC301 Is 5V supplied at IC301 pin#91? Check POWER 5V. pin#79? Is SW Pulse input at IC301 Check IC501 pin#18. pin#70? Clean head or Replace head. Is Y SIGNAL output at IC301 Is 5V obtained at IC301 pin#24, Check POWER 5V.
Page 14
TROUBLESHOOTING C. No recording Record video signal poor. Check EE MODE. Is luminance and color signal Is signal input into IC301 output from IC301 pin#78? pin# 48,50,52,54,56? Check POWER circuit. Is +5V supplied at IC301 pin#91? Check IC501 pin#45. Is IC301 pin#80 REC(H) HIGH? Is VIDEO SW Pulse input at IC301 Check IC501 pin#18.
Page 15
TROUBLESHOOTING D. No OSD(On Screen Display) appears No OSD appears. Is 5V obtained at IC501 pin# 53, Check POWER circuit. 98, 99? Is Video signal output at IC501 Is Video signal input at IC501 Replace IC501. pin#52? pin#50? Check IC 501. Check IC 501.
Page 16
TROUBLESHOOTING 4. AUDIO (Hi-Fi MODEL) A. No sound in E-E mode a. RF E-E No sound in RF E-E mode Is 5V obtained at IC051 pin#1? Check Power circuit. Is there SIF signal at IC051 pin#2 Check RF101. in RF mode? Is there SIF signal out at IC051 Check IC051.
Page 17
TROUBLESHOOTING b. AV E-E No sound in AV E-E mode. Is 12V obtained at IC251 pin#34? Check POWER circuit. Is 5V obtained at IC251 pin#40? Check Input AV JACK Is Audio signal at IC251 pin#6, 7? Is Audio signal output at IC251 Are CLK and DATA obtained at Replace IC251.
Page 18
TROUBLESHOOTING c. DVD E-E No sound in DVD E-E mode. Is there DVD Audio at ICD01 Check ICD01, DVD board pin#7,8? Is 12V obtained at ICD03 pin#8? Check POWER circuit. Is DVD Audio signaloutput at Check ICD03. ICD03 pin#1,7? Is Audio(DVD) signal at IC601 Check ICD03.
Page 19
TROUBLESHOOTING d. FRONT E-E No sound in Front E-E mode. Is Audio signal at IC601 pin#1, Check Input Front JACK. Is Audio signal output at IC601 pin Comparing with switching table, are SWA, B CTL SIGNAL #3, 13? right at IC601 pin #9,10? Check IC501.
Page 20
TROUBLESHOOTING B. No Hi-Fi Playback audio(PLAY MODE) Is 12V obtained at IC251 pin#34? Check POWER circuit. Is 5V obtained at IC251 pin#40? Check A.SW at IC501 Is Audio signal at IC251 pin#41? pin#19. Is Audio signal output at IC251 Are CLK and DATA obtained at Replace IC251.
Page 21
C. No Hi-Fi playback in record/playback mode (REC MODE) Are there Audio signal Check input LINE JACK. at IC251 pin#4~7? Is FM OSC signal at IC251 Replace IC251 pin#36? Is FM OSC signal at P401 pin#2? Replace DRUM. HEAD CLEANING.
Page 22
D. No NORMAL AUDIO playback (PLAY MODE) Voltage at IC251 pin#34 is 12V? Is there normal Audio signal at Voltage at IC251 pin#40 and at Check power circuit. IC251 pin#17, 18? IC301 pin#18 is 5V? Is Playback Audio signal at Check A/C HEAD and IC301 IC301 pin#11? Is there Playback Normal Audio...
Page 23
TROUBLESHOOTING E. No NORMAL AUDIO playback in record/playback mode(Check in REC mode) No Normal Audio playback in record/playback mode Are there Audio signal at IC251 Check input LINE JACK. pin#4~7? Is there recording signal at Check IC251. IC251 pin#21? Signal at IC251 pin#21 is transferred to Check signal flow circuit.
ELECTRICAL ADJUSTMENT PLAYBACK PHASE ADJUSTMENT TEST TEST INPUT ITEM MODE CHECK POINT POINT EQUIPMENT TAPE SIGNAL 6.5H PIN 3 & PIN 4 PLAY [REC] BUTTON OSCILLOSCOPE DP-2 NO SIGNAL ADJUSTMENT OF PT01 ADJUSTMENT PARTS MEASURING POINT PCB : MAIN - TOP VIEW PT01 OSCILLOSCOPE BLOC...
INSTRUMENT DISASSEMBLY 1. DECK DISASSEMBLY Perform all disassembly procedures in the order presented. When reassembling, use the reverse procedure. Make sure that all leads/ wiring are routed correctly when reassembling. A. TOP COVER REMOVAL @ Remove a screws ! Remove three screws # Remove a screws FIG.
Page 42
INSTRUMENT DISASSEMBLY B. PANEL FRONT DISASSEMBLY @ Remove 2 Hooks at left and right sides, Simultaneously, remove panel. ! Remove 3 Hooks at bottom FIG.2 C. LOGIC PCB DISASSEMBLY Remove 2 screws, then remove Logic FIG.3...
Page 43
INSTRUMENT DISASSEMBLY D. DECK AND MAIN PARTS DISASSEMBLY ! Remove 5 screws, then remove DECK @ Remove 4 screws, then remove LOADER # Remove 2 screws, then remove POWER PCB FIG. 4...
Page 44
INSTRUMENT DISASSEMBLY E. MAIN PCB DISASSEMBLY @ Remove 2 screws, then remove MAIN PCB ! Remove 3 screws FIG. 5...
Page 45
INSTRUMENT DISASSEMBLY F. MAIN CHASSIS DISASSEMBLY ! Remove 4 screws, then remove MAIN CHASSIS FIG. 6...
ADJUSTMENT OF THE TAPE TRANSPORT SECTION. Generally, tape transporting section has been precisely adjusted in the factory and does not require the ordinary readjustment. But there is the case that tape noise or impact on the deck mechanism, tape transporting section readjustment is required. In adjustment of the tape transmission section refer to the following flow chart.
Page 47
CLEANING S/T GUIDE ROLLER HEIGHT • DRUM TOTAL AS ADJUSTMENT S/T GUIDE ROLLER FLUNGE • A/C HEAD AS • PINCH LEVER TOTAL A/C HEAD AS ADJUSTMENT (TILT ADJUSTMENT) AUDIO AZIMUTH ADJUSTMENT A/C HEAD ADJUSTMENT X-POSITION ADJUSTMENT PLAYBACK PHASE ADJUSTMENT LINEARITY ADJUSTMENT •...
Page 48
A. Adjustment of the S/T GUIDE ROLLER D.Adjustment of the AUDIO AZIMUTH(Fig. 5.4) A. Adjustment of the S/T GUIDE ROLLER a. Play back the ALIGNMENT TAPE a. Check the Playing back with a T-120 TAPE. b. Make sure that excessive tape wrinkle does not occure b.
Page 49
G.Adjustment of the LINEARITY(Fig. 5.7) S/W PULSE TEST PIN PATH ADJ. FIXTURE Test Point ENVELOPE TEST PIN PATH ADJ.FIXTURE Measurement Equipment OSILLOSCOPE VR CONTROL PATH ADJ.FIXTURE Adjustment S/T GUIDE ROLLER TAPE TRANSPORT SECTION a. Connect the PT01 on the MAIN CIRCUIT BOARD with a PATH ADJ.
Page 50
H. Adjustment of the Wave Form of DRUM BOARD with a CHANNEL-2 SCOPE PROBE (1V/div). Entrance / Exit (Fig. 5.8) e. Make the VR CONTROL on the PATH ADJ. FIXTURE to the center to maximize the ENVELOPE signal. S/W PULSE TEST PIN PATH ADJ.
Page 51
K.Adjustment of the AUDIO AZIMUTH L. X-POSITION S/W PULSE TEST PIN PATH ADJ. FIXTURE Test Point AUDIO OUTPUT AUDIO OUTPUT JACK Test Point ENVELOPE TEST PIN PATH ADJ.FIXTURE Measurement Equipment AUDIO LEVEL METER Measurement Equipment OSILLOSCOPE VR CONTROL PATH ADJ.FIXTURE a.
Page 52
INSTRUMENT DISASSEMBLY G. Explode view PAR T NAME PAR T NO. Q'TY MATE R IAL R E MAR K 1 C OVE R TOP S E C C T0.5+P AINT(HOLE 2 E A) DW-97P 0483501 2 S C R E W TAP P TITE TT2 BIN 3X8 BK C OVE R TOP FIX DW-7173300812...