Related Manuals for Orion MD17
Summary of Contents for Orion MD17
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Page 1: Service Manual
MD17 SERVICE MANUAL COLOR TELEVISION/VIDEO CASSETTE RECORDER ORIGINAL MFR’S VERSION A Design and specifications are subject to change without notice. -
Page 2: Servicing Notices On Checking
SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, Safety is secured against an X-ray by consider- they are indicated with the labels or seals on the ing about the cathode-ray tube and the high cabinet, chassis and parts. -
Page 3: Table Of Contents
CONTENTS SERVICING NOTICES ON CHECKING ..................A1-1 HOW TO ORDER PARTS ......................A1-1 CONTENTS ..........................A2-1 GENERAL SPECIFICATIONS ....................A3-1~A3-5 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS ..........B1-1, B1-2 2. REMOVAL OF DECK PARTS .................... B2-1~B2-5 3. -
Page 4: General Specifications
GENERAL SPECIFICATIONS CRT Size / Visual Size 14 inch / 335.4mmV System CRT Type Normal Deflection degree Magnetic Field BV/BH +0.45G/0.18G Color System PAL/SECAM orMonochroma signal Speaker 1Speaker Position Front Size 1.5 x 2.5 Inch Impedance 8 ohm Sound Output 1.5W 10%(Typical) System... - Page 5 GENERAL SPECIFICATIONS On Screen Menu Display Menu Type Character Timer Rec Set Channel Setup Auto Tuning Ch Mapping Ch Tuning Ch Allocation TV Setup On/Off Timer Set Picture Audio VCR Setup Auto Repeat On/Off Scene Repeat System Setup Clock Set Yes (Calendar 24h) Language System Select...
- Page 6 GENERAL SPECIFICATIONS G-12 Remote Unit RC-CH Control Glow in Dark Remocon Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys Keys Keys Power 0/AV CH/Tr Up CH/Tr Up/Page Up CH/Tr Down CH/Tr Down /Page Down Volume Up Volume Down Play/Up Play/Up/Slow...
- Page 7 GENERAL SPECIFICATIONS G-13 Features Auto Head Cleaning Auto Tracking HQ (VHS Standard High Quality) Auto Power On, Auto Play, Auto Rewind, Auto Eject Auto Shut Off Auto Repeat VIDEO PLUS+(SHOWVIEW,G-CODE) CH Auto Set-Up/Auto Clock Forward / Reverse Picture Search One Touch Playback Auto Tuning Anti-Theft End Call...
- Page 8 GENERAL SPECIFICATIONS G-15 Interface Switch Front Power Play Pause/Still System Select One Touch Playback Channel Up Channel Down F.FWD/Cue Eject/Stop Main Power SW Volume Up Volume Down Rew/Rev Rec/OTR Rear Main Power SW Indicator Standby Rec/OTR T-Rec On Timer Key Light up Rec/OTR One Touch Playback Play...
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Page 9: Disassembly Instructions
DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS 1-3: TV/VCR BLOCK (Refer to Fig. 1-3) Remove the 2 screws 1. AND P.C. BOARDS Disconnect the following connectors: 1-1: BACK CABINET (Refer to Fig. 1-1) (CP755, CP351, CP401, CP501, CP502 and CP354). Remove the 4 screws 1. - Page 10 DISASSEMBLY INSTRUCTIONS 1-5: DECK SHIELD PLATE (Refer to Fig. 1-5) Remove the 2 screws 1. Remove the 4 screws 2. Remove the screw 3. Remove the Deck Shield Plate in the direction of arrow (A). Remove the screw 4. Remove the Shield Plate Bottom in the direction of arrow (B). Deck Chassis Deck Shield Plate Syscon PCB...
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Page 11: Removal Of Deck Parts
DISASSEMBLY INSTRUCTIONS 2. REMOVAL OF DECK PARTS NOTE When you install the Tape Guide L, install as shown in the 2-1: TOP BRACKET (Refer to Fig. 2-1) circle of Fig. 2-3-B. (Refer to Fig. 2-3-B) Remove the 2 screws 1. Slide the 2 supports 2 and remove the Top Bracket. - Page 12 DISASSEMBLY INSTRUCTIONS 2-6: LINK ASS'Y (Refer to Fig. 2-6) 2-9: TENSION ASS'Y (Refer to Fig. 2-9-A) Set the Link Ass'y to the Eject position. Move the Inclined S Ass'y to the back side. Remove the (A) side of the Link Ass'y first, then remove Remove the Tension Spring.
- Page 13 DISASSEMBLY INSTRUCTIONS 2-11: S REEL/T REEL (Refer to Fig. 2-11) NOTE Remove the S Reel and T Reel. Do not touch the Pinch Roller. (Use gloves.) Remove the 2 Polyslider Washers 1. When you install the Pinch Roller Block, install as shown in the circle of Fig.
- Page 14 DISASSEMBLY INSTRUCTIONS 2-15: AHC ASS'Y/CYLINDER UNIT ASS'Y (Refer to Fig. 2-15) Middle Gear Unlock the support 1 and remove the AHC Ass'y. E-Ring Remove the 3 screws 2. Remove the Cylinder Unit Ass'y. Main Cam NOTE Pinch Roller Cam When you install the Cylinder Unit Ass'y, tighten the screws from (1) to (3) in order while pulling the Ass'y Joint Gear toward the left front direction.
- Page 15 DISASSEMBLY INSTRUCTIONS 2-19: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-19-A) 2. When you install the Clutch Actuator, install as shown in the circle of Fig. 2-19-C. (Refer to Fig. 2-19-C) Remove the E-Ring 1 and remove the Main Loading Gear.
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Page 16: Removal Of Anode Cap
DISASSEMBLY INSTRUCTIONS 3. REMOVAL OF ANODE CAP 3. After one side is removed, pull in the opposite direction to remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap. -
Page 17: Key To Abbreviations
KEY TO ABBREVIATIONS Audio/Control H.SW Head Switch Automatic Color Control Hertz Audio Erase Integrated Circuit Automatic Frequency Control Intermediate Frequency Automatic Fine Tuning Indicator AFT DET Automatic Fine Tuning Detect Inverter Automatic Gain Control Killer Amplifier Left Antenna Light Emitting Diode A.PB Audio Playback LIMIT AMP... - Page 18 KEY TO ABBREVIATIONS SYNC Synchronization SYNC SEP Sync Separator, Separation Transistor TRAC Tracking TRICK PB Trick Playback Test Point UNREG Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse, Voltage Display V.PB Video Playback Variable Resistor V.REC Video Recording Visual Search Fast Forward Visual Search Rewind Voltage Super Source...
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Page 19: Service Mode List
SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter SERVICE MODE, unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and remocon key for more than 2 seconds. -
Page 20: Preventive Checks And Service Intervals
PREVENTIVE CHECKS AND SERVICE INTERVALS The following standard table depends on environmental conditions and usage. Unless maintenance is properly carried out, the following service intervals may be quite shortened as harmful effects may be had on other parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. Time 1,000 1,500... - Page 21 PREVENTIVE CHECKS AND SERVICE INTERVALS CLEANING NOTE 2. TAPE RUNNING SYSTEM After cleaning the heads with isopropyl alcohol, do not When cleaning the tape transport system, use the run a tape until the heads dry completely. If the heads gauze moistened with isopropyl alcohol. are not completely dry and alcohol gets on the tape, 3.
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Page 22: Note For The Replacing Of Memory Ic
NOTE FOR THE REPLACING OF MEMORY IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. NOTE: Initial Data setting will not be possible if clock has been set. -
Page 23: Servicing Fixtures And Tools
SERVICING FIXTURES AND TOOLS (For 2 head 1 speed model, (For 2 head 2 speed model) JG002B Adapter JG005 Post Adjustment 4 head model) VHS Alignment Tape JG002E Dial Torque Gauge Screwdriver VHS Alignment Tape JG001C (VP S-LI6 ) (10~90gf•cm) Part No. -
Page 24: Preparation For Servicing
PREPARATION FOR SERVICING How to use the Servicing Fixture Unplug the connector CP351, CP755 and CP354 then remove the TV/VCR Block from the set. Unplug the connector CP810, CP820 and CP850, then remove the Main PCB from the VCR Block. Connect as shown in the below figure using the Service Fixture. -
Page 25: Mechanical Adjustments
MECHANICAL ADJUSTMENTS 1-2: CONFIRMATION AND ADJUSTMENT OF TENSION 1. CONFIRMATION AND ADJUSTMENT POST POSITION Read the following NOTES before starting work. Set to the PLAY mode. • Place an object which weighs between 450g~500g on Adjust the Tension Adjust until the edge of the Tension the Cassette Tape to keep it steady when you want to Arºm is positioning within 0.5mm range from the make the tape run without the Cassette Holder. - Page 26 MECHANICAL ADJUSTMENTS 1-4: CONFIRMATION OF VSR TORQUE 2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM Operate within 4~5 seconds after the reel disk begins to turn. Tape Running Mechanism is adjusted precisely at the Install the Torque Gauge (JG002F) and Adapter (JG002B) factory.
- Page 27 MECHANICAL ADJUSTMENTS 2-2: CONFIRMATION AND ADJUSTMENT OF AUDIO/ 2-3: TAPE RUNNING ADJUSTMENT CONTROL HEAD (X VALUE ADJUSTMENT) When the Tape Running Mechanism does not work well, Confirm and adjust the height of the Reel Disk. adjust the following items. (Refer to item 1-1) Confirm and adjust the position of the Tension Post.
- Page 28 MECHANICAL ADJUSTMENTS 3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE 1. Tension Adjust X value adjustment driver hole 2. Tension Arm P4 Post 3. Guide Roller T Brake Spring 4. P1 Post T Reel 5. Audio/Control Head S Reel D1-4...
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Page 29: Electrical Adjustments
ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE Read and perform these adjustments when repairing the CH-2 circuits or replacing electrical parts or PCB assemblies. CAUTION When replacing IC's or transistors, use only specified 6.5H silicon grease (YG6260M). CH-1 (To prevent the damage to IC's and transistors.) Fig. - Page 30 ELECTRICAL ADJUSTMENTS 1. RF AGC DELAY 2. VIDEO LEVEL 2. R. BIAS 3. FM LEVEL 3. G. BIAS 4. OSD H 4. B. BIAS 5. CUT OFF 5. R. DRIVE 6. AFT 7. REC AGC DELAY 7. B. DRIVE 8. VCO 0.
- Page 31 ELECTRICAL ADJUSTMENTS 2-11: VERTICAL SIZE 60 Receive the monoscope pattern. (Audio Video Input) [ TV ] Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (1) on the remote control to select "H/V".
- Page 32 ELECTRICAL ADJUSTMENTS 2-17: SUB CONTRAST (PAL) 2-20: SUB COLOR (SECAM) Receive the SECAM color bar pattern. (RF Input) Receive the PAL color bar pattern. (RF Input) Connect the synchro scope to TP801. Using the remote control, set the brightness and Using the remote control, set the brightness, contrast, contrast to normal position.
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Page 33: Syscon
ELECTRICAL ADJUSTMENTS 3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (VCR SECTION) TP1001 TP4002 TP4001 TP602 TU601 TP4501 J4501 CP603 SYSCON PCB D2-5... - Page 34 ELECTRICAL ADJUSTMENTS (TV SECTION) TP801 J801 CRT PCB VR502 TP401 T501 FOCUS VOLUME FB401 SCREEN VOLUME MAIN PCB D2-6...
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Page 35: Purity And Convergence
ELECTRICAL ADJUSTMENTS 4. PURITY AND CONVERGENCE 4-3: STATIC CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 4-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator. -
Page 36: Y/C/Audio/Head Amp
Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM R4044_1 (SYSCON PCB) L4002 FROM/TO SECAM CHROMA/HI-FI C4112 100uH 0305 BUFFER SECAM_SW 0.01 B Q4006 Q4008 Y/C_VIDEO_OUT SEC_PB_C 2SA1037AK 2SC2412K V.ENV R4040 LOW_C TP4002 L4017 EE/VV S820Y JWF-50K-1 FROM POWER 22uH C4008 V.SYNC Q4007 R4055 2SC2412K LOW_C2 Y/C_AUDIO_OUT TO SOUND AMP... -
Page 37: Micon
MICON SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO POWER D1006 TO CHROMA D1010 SB140-EIC AT+5.6V AT+5V SB140-EIC R1109 TO T’TEXT C1075 VCR_POWER_H 100P CH TEXT_Y C1076 POWER_FAIL[DC] C1030 100P CAP_VCO X1002 0.1 F X1001 32.768 10MHz FROM/TO Y/C/AUDIO/HEAD AMP R1034 VV_H P.CON+5V_B SECAM_L P.CON+5V_C 5.0 5.1 0.1... -
Page 38: Power
POWER SCHEMATIC DIAGRAM (SYSCON PCB) TO Y/C/AUDIO/HEAD AMP P.CON+5V DRIVER P.CON+5V DRIVER Q1019 Q1008 P.CON+5V_B (REC TURNE) KTA1281_Y KTA1281_Y W947 P.CON+5V_D (W385) P.CON+9V R1057 R1065 W946 P.CON+5V_C R1104 (W144) FROM/TO MICON P.CON SW Q1007 2SC2412K AT+5.6V R1069 P.CON SW VCR_POWER_H Q1006 AT+12V 2SC2412K... -
Page 39: 21Pin/In/Out
21PIN/IN/OUT SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO MICON FROM/TO SOUND AMP KEY_B REC_LED SOUND_L+ SP_OUT_L T-REC_LED KEY_A FROM POWER REMOCON_IN D4202 AT+5.6V 11ES1N-TA1B2 P.CON+5V_C W855 TUNER_ON/OFF P.CON+9V P.CON+5V_A POWER ON SW EXT_IN_L Q4201 KRC102RTK TU_AUDIO_MUTE_H VIDEO OUT TP4501 JWF-50K-1 P.CON+5V_D C4510 0.0022 P.CON+5V_D 21PIN JACK... -
Page 40: Chroma
CHROMA SCHEMATIC DIAGRAM FROM/TO MICON SVL_M (SYSCON PCB) VCR_POWER_H TV_POWER_H R.OUT G.OUT B.OUT D604 TEXT_Y 11ES1N-TA1B2 R648 L613 W919 AGC_M 47uH 0305 IIC_OFF AFT_M R640 SECAM_MO-H S101X S101Y R672 R638 100K AT+5V BUFFER 3.3K TEST POINT 6.8K Q613 2SC2412K CP603 8283_0912_00_000 TO SOUND AMP B.OUT... -
Page 41: Sound Amp
SOUND AMP SCHEMATIC DIAGRAM (SYSCON PCB) SOUND AMP IC IC352 AN7523 HS352 763WAA0014 FROM CHROMA W813 SOUND+B FROM/TO 21PIN/IN/OUT C353 SOUND_GND SOUND_L+ 1000 FROM Y/C/AUDIO/HEAD AMP SP_OUT_L C356_1 R313 Y/C_AUDIO_OUT KANP C354_1 W810 2200 C368 1000 TO SPEAKER W834 CP354 SPEAKER B2B-EH-A SP351_1... -
Page 42: T'text
T’TEXT SCHEMATIC DIAGRAM (SYSCON PCB) FROM Y/C/AUDIO/HEAD AMP W875 Y/C_VIDEO_OUT FROM POWER W876 MONITOR_V TO CHROMA W877 TEXT_SYNC W893 W815 W854 TO CHROMA TEXT_B TEXT_R TEXT_G TEXT_Y FROM 21PIN/IN/OUT 21_Y 21_R 21_G 21_B PCB010 VM9171 NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME NOTE: THE DC VOLTAGE AT EACH PART WAS OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE... -
Page 43: Secam Chroma/Hi-Fi
SECAM CHROMA/HI-FI SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO MICON SEC_REC_L BUFFER Q3001 SECAM_L 2SC2412K R3012 SECAM_SW BUFFER D_V_SYNC Q3005 2SA1037AK FROM/TO Y/C/AUDIO/HEAD AMP LOW_C2 EE/VV SEC_PB_C LOW_C SECAM SW Q3003 V.SYNC KRC103RTK SECAM_SW R1153 ATT1 SYSTEM compress 4.3M sync 1.1M W934 Gate SYNC Gate... -
Page 44: Tv Power
TV POWER SCHEMATIC DIAGRAM (MAIN PCB) TV.POWER_H P.CON+125V 127.0 127.5 FROM/TO DEFLECTION 127.0 +B 130V DRIVE Q503 130V DRIVE 6V POWER REG. IC P.CON+125V 2SC4160 Q502 IC505 -OEC-YAC1 2SA1371(D,E)-AE SOUND+B 127.5 KIA7806API D516 RELAY DRIVE TV.POWER_H Q504 126.8 VCR.POWER_H 1SS133 KTC3203_Y-AT 127.0 10.5... -
Page 45: Deflection
DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) V.OUTPUT IC IC401 LA7840 THERMAL PUMP UP PROTECTION 14.2 23.5 22.8 C412 TO DY CP401 500V 390P B05B-DVS C409 0.0022 M R404 R413 R416 FROM/TO CHROMA CP820 (CD820) 8283_1112_00_000 SOUND_GND SOUND+B CC004 HS401 TP-1S-05 VCR_POWER_H 763WSA0004 TV_POWER_H C431... -
Page 46: Crt
CRT SCHEMATIC DIAGRAM (CRT PCB) 132.9 104.1 132.8 132.5 TP801 FROM CHROMA J801 R802 CP850 (CD850) HPS3200-010501 8283_0512_00_000 12K 2W W803 CUT_OFF 132.5 G.OUT R807 W845 RED AMP R.OUT Q804 (W042) 2.7K 1/4W B.OUT 2SC4217 R811 4.7K TP802 R805 12K 2W 132.1 W804 W843... -
Page 47: Operation
OPERATION SCHEMATIC DIAGRAM (OPERATION PCB) OS753 PIC-37143TH5 Vout R771 R772 R773 R774 1.5K 2.7K 5.6K L757 W5T18.4X10X9.6 R776 R777 1.5K FROM/TO 21PIN/IN/OUT CD757 (CP755) CH2A014A REMOCON_OUT HEADPHONE JACK AT+5V J351 POWER_ON_L HSJ2630-010070 KEY_A T-REC_LED R350 REC_LED KEY_B R351 1/2W B702 33 1/2W BL02RN2-R62T2 B701... -
Page 48: Deck
DECK SCHEMATIC DIAGRAM (DECK PCB) LOADING MOTOR M101 S105 BOT SENSOR S106 Q101 RPT-38PB113 S101 S102 S103 S104 FROM/TO MICON CP101 52044-0445 LDM+ LDM- FROM/TO MICON CP102 173979-2 EOT SENSOR Q102 RPT-38PB113 PCB550 VE8851 CAUTION: SINCE THESE PARTS MARKED BY ATTENTION: LES PIECES REPAREES PAR UN ETANT... -
Page 49: Interconnection Diagram
INTERCONNECTION DIAGRAM HEADPHONE_JACK J351 TM101 OS753 OPERATION PCB PCB030 OS753 TE9962 VIDEO AUDIO L FROM FRONT AV JACK Vout J701 TM101 HALL MAIN ROTOR SENSOR COIL MAGNET FG SENSOR L757 HALL HALL L351 SWITCH LOGIC CP1004 MOTOR_GND SPEAKER CP354 I LIMIT SP_OUT SOUND_GND SP351_1...