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JVC HR-S5900U/C Video cassette recorder
Manufacturer:
Model:
HR-S5900U/C
Date:
2001
Class:
Type:
SubType:
Service Manual
Manual type:
Service Manual
Pages:
144
Size:
6.02 Mbytes (6307840 Bytes)
Language:
english
Revision:
Manual-ID:
82848
Date:
unknown
Quality:
Electronic document, no scan, very well readable.
Upload date:
2012 01 10
MD5:
ab382987f8bb6275e8d8de9a54489d05
Downloads:
3876

Information

1. DISASSEMBLY 1.1 Disassembly flow chart ... 1-1 1.2 How to read the disassembly and assembly ... 1-1 1.3 Disassembly/assembly method ... 1-1 1.4 Service position ... 1-4 1.4.1 How to set the “Service position” ... 1-4 1.5 Mechanism service mode ... 1-4 1.5.1 How to set the “Mechanism service mode” ... 1-4 1.6 Jig RCU mode ... 1-4 1.6.1 Setting the Jig RCU mode ... 1-4 1.6.2 Setting the User RCU mode ... 1-4 1.7 Emergency display function ... 1-5 1.7.1 Displaying the EMG information ... 1-5 1.7.2 Clearing the EMG history ... 1-5 1.7.3 EMG content description ... 1-6 1.7.4 EMG detail information <1> ... 1-7 1.7.5 EMG detail information <2> ... 1-8 2. MECHANISM ADJUSTMENT 2.1 Before starting repair and adjustment ... 2-1 2.1.1 Precautions ... 2-1 2.1.2 Checking for proper mechanical operations ... 2-1 2.1.3 Manually removing the cassette tape ... 2-1 2.1.4 Jigs and tools required for adjustment ... 2-2 2.1.5 Maintenance and inspection ... 2-3 2.2 Replacement of major parts ... 2-6 2.2.1 Before starting disassembling (Phase matching between mechanical parts) ... 2-6 2.2.2 How to set the “Mechanism assembling mode” ... 2-6 2.2.3 Cassette holder assembly ... 2-6 2.2.4 Pinch roller arm assembly ... 2-8 2.2.5 Guide arm assembly and press lever assembly ... 2-8 2.2.6 A/C head ... 2-8 2.2.7 Loading motor ... 2-8 2.2.8 Capstan motor ... 2-9 2.2.9 Pole base assembly (supply or take-up side) ... 2-9 2.2.10 Rotary encoder ... 2-10 2.2.11 Clutch unit ... 2-10 2.2.12 Change lever assembly, direct gear, clutch gear and coupling gear ... 2-10 2.2.13 Link lever ... 2-11 2.2.14 Cassette gear, control cam and worm gear ... 2-11 2.2.15 Control plate ... 2-11 2.2.16 Loading arm gear (supply or take-up side) and loading arm gear shaft ... 2-13 2.2.18 Capstan brake assembly ... 2-13 2.2.19 Sub brake assembly (take-up side) ... 2-13 2.2.20 Main brake assembly (take-up side), reel disk (take-up side) and main brake assembly (supply side) ... 2-13 2.2.21 Tension brake assembly, reel disk (supply side) and tension arm assembly ... 2-14 2.2.22 Idler lever, idler arm assembly ... 2-14 2.2.23 Stator assembly ... 2-14 2.2.24 Rotor assembly ... 2-14 2.2.25 Upper drum assembly ... 2-15 2.3 Compatibility adjustment ... 2-16 2.3.1 FM waveform linearity ... 2-16 2.3.2 Height and tilt of the A/C head ... 2-17 2.3.3 A/C head phase (X-value) ... 2-17 2.3.4 Standard tracking preset ... 2-18 2.3.5 Tension pole position ... 2-18 3. ELECTRICAL ADJUSTMENT 3.1 Precaution ... 3-1 3.1.1 Required test equipments ... 3-1 3.1.2 Required adjustment tools ... 3-1 3.1.3 Color (colour) bar signal,Color (colour) bar pattern ... 3-1 3.1.4 Switch settings and standard precautions ... 3-1 3.1.5 EVR Adjustment ... 3-1 3.2 Servo circuit ... 3-2 3.2.1 Switching point ... 3-2 3.2.2 Slow tracking preset ... 3-2 3.3 Video circuit ... 3-2 3.3.1 D/A level ... 3-2 3.3.2 EE Y/PB Y (S-VHS/VHS) level ... 3-2 3.3.3 REC color (colour) level ... 3-3 3.3.4 Video EQ (Frequency response) ... 3-3 3.3.5 Auto picture initial setting ... 3-4 3.4 Audio circuit ... 3-4 3.4.1 Audio REC FM ... 3-4 3.5 Demodulator circuit ... 3-4 3.5.1 Input level ... 3-4 3.5.2 Stereo VCO ... 3-5 3.5.3 Stereo filter ... 3-5 3.5.4 Separation - 1 ... 3-5 3.5.5 Separation - 2 ... 3-5 3.5.6 SAP VCO ... 3-6 4. CHARTS AND DIAGRAMS NOTES OF SCHEMATIC DIAGRAM ... 4-1 CIRCUIT BOARD NOTES ... 4-2 4.1 BOARD INTERCONNECTIONS ... 4-3 4.2 MAIN (VIDEO/AUDIO) SCHEMATIC DIAGRAM ... 4-5 4.3 MAIN (S-SUB) SCHEMATIC DIAGRAM ... 4-7 4.4 MAIN (SYSCON) SCHEMATIC DIAGAM ... 4-9 4.5 MAIN (SW.REG) SCHEMATIC DIAGRAM ... 4-11 4.6 MAIN (TUNER/DEMOD) SCHEMATIC DIAGRAM ... 4-13 4.7 MAIN (FRONT) AND ADV. JOG SCHEMATIC DIAGRAMS 4-15 4.8 MAIN (TERMINAL) SCHEMATIC DIAGRAM ... 4-17 4.9 MAIN (BS CONNECTION), S-JACK, R.PAUSE AND C.BOX CTL SCHEMATIC DIAGRAMS ... 4-19 4.10 2D DIGITAL SCHEMATIC DIAGRAM ... 4-21 4.11 DEMODULATOR SCHEMATIC DIAGRAM ... 4-23 4.12 MAIN, R.PAUSE AND C.BOX CTL CIRCUIT BOARDS ... 4-25 4.13 2D DIGITAL AND DEMODULATOR CIRCUIT BOARDS .. 4-28 4.14 REMOTE CONTROLLER SCHEMATIC DIAGRAM ... 4-29 4.15 FDP GRID ASSIGNMENT AND ANODE CONNECTION .. 4-30 4.16 WAVEFORMS ... 4-31 4.17 VOLTAGE CHARTS ... 4-33 4.18 CPU PIN FUNCTION ... 4-34 4.19 SYSTEM CONTROL BLOCK DIAGRAM ... 4-35 4.20 VIDEO BLOCK DIAGRAM ... 4-37 4.21 AUDIO BLOCK DIAGRAM ... 4-41 5. PARTS LIST 5.1 PACKING AND ACCESSORY ASSEMBLY ... 5-1 5.2 FINAL ASSEMBLY ... 5-2 5.3 MECHANISM ASSEMBLY ... 5-4 5.4 ELECTRICAL PARTS LIST ... 5-6 MAIN BOARD ASSEMBLY <03> ... 5-6 2D DIGITAL BOARD ASSEMBLY <05> ... 5-12 A/C HEAD BOARD ASSEMBLY <12> ... 5-13 DEMOD BOARD ASSEMBLY <14> ... 5-13 S JACK BOARD ASSEMBLY(S5900U/U(C))<36> ... 5-13 ADV.JOG BOARD ASSEMBLY <38> ... 5-13 LOADING MOTOR BOARD ASSEMBLY <55> ... 5-14 R.PAUSE BOARD ASSEMBLY <91> ... 5-14 C.BOX BOARD ASSEMBLY <92> ... 5-14

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