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1、Table Of Contents COVER 1 Before Repair and Adjustment 2 Protection Circuitry 3 Accessories 4 Caution for AC Main Lead 5 Operation Procedures 6 Handling the Lead-free Solder 6.1 About lead free solder (PbF) 7 Handling Precautions For Traverse Deck 8 Operation Checks and Component Replacement Procedu
2、res 8.1 Checking for Main P.C.B. 8.2 Disassembly for the CD changer ass y 8.2.1 Disassembly for the CD Lid 8.2.2 Disassembly for CD changer unit 8.3 Checking for the unit operational condition 8.3.1 Initial setting of CD 8.3.2 Checking for the CD Servo P.C.B., Panel P.C.B., Deck P.C.B., Transformer
3、P.C.B. and Power P.C.B. 8.3.3 Replacement of the Power Amplifier IC RadioFans.CN 收音机爱 好者资料库 PV 8.4 Main Component Replacement Procedures 8.4.1 Replacement of the Traverse Deck 8.5 Replacement for the disc tray 8.6 Disassembly and reassembly for mechanism base drive unit 8.7 Replacement for the motor
4、 ass y 8.8 Replacement for the pinch roller ass y and head block 8.9 Replacement for the CD motor ass y, capstan belt A, capstan belt B and winding belt 8.10 Replacement for the CD motor ass y, capstan belt A, capstan belt B and winding belt 8.11 Replacement for the cassette lid ass y 8.12 Measure f
5、or tape trouble 9 Precaution of Laser Diode 10 Self-Diagnostic Function 10.1 Self-diagnostic display 10.2 How to enter the Self-Diagnostic Function 10.3 Cassette Mechanism Test (For error code H01, H02, H03, F01, F02) 10.4 CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29, H15) 10.5 To clear all
6、Error code 10.6 How to get out from Self-Diagnostic function 10.7 Power Amplifier Failure (F61) 11 Description of Error Code 11.1 Error detection for Cassette Mechanism block RadioFans.CN 收音机爱 好者资料库 11.2 Error detection for CD Changer block 11.3 Power Supply related error detection 12 CD Test Mode F
7、unction 12.1 How to set CD test mode 12.2 CD Automatically Adjustment result indication 13 Measurements and Adjustments 13.1 Cassette Deck Section 13.1.1 Tape Speed Adjustment (Deck 1 / 2) 13.1.2 Bias and Erase Voltage Check 13.1.3 Bias Frequency Adjustment (Deck 1 / 2) 13.2 Tuner Section 13.2.1 AM-
8、IF Alignment 13.2.2 AM RF Adjustment 13.3 Alignment Points 13.3.1 Cassette Deck Section 13.3.2 Adjustment Point 14 Schematic Diagram 15 Printed Circuit Board 16 Block Diagram 17 Wiring Connection Diagram RadioFans.CN 收音机爱 好者资料库 18 Illustration of IC s, Transistors and Diodes 19 Terminal Function of
9、IC s 19.1 IC701 (AN8885SBE1) Servo Amplifier 19.2 IC702 (MN6627911AC1) Servo processor / Digital signal processor / Digital filter / D / A converter 19.3 IC703 (AN8739SBTE2) Focus coil / Tracking coil / Traverse motor / Spindle motor driver 19.4 IC305 (C2CBJF000006) System Microprocessor 20 Troubles
10、hooting Guide 21 Parts Location and Replacement Parts List 21.1 Deck Mechanism (RAA4502-S) 21.1.1 Deck Mechanism Parts Location 21.1.2 Deck Mechanism Parts List 21.2 CD Loading Mechanism (RD-DAC026-S) 21.2.1 CD Loading Mechanism Parts Location 21.2.2 CD Loading Mechanism Parts List 21.3 Cabinet 21.3
11、.1 Cabinet Parts Location 21.3.2 Cabinet Parts List 21.4 Electrical Parts List 21.5 Packing Materials Typically the melting point is 50 - 70F (30 - 40C) higher. Please use a high temperature soldering iron. In case of soldering iron with temperature control,please set it to 700 20F (370 10C). G Pb f
12、ree solder will tend to splash when heated too high (about 1100F/600C). G When soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the soldering points with the Pb free solder until it melts enough. TOP PREVIOUS NEXT 7 Handling Precaut
13、ions For Traverse Deck TOP PREVIOUS NEXT The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup). G Handling o
14、f traverse deck (optical pickup) 1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock. 2. The short land between the No.4(LD) and No.5(GND) pins on the flexible board (FFC) is shorted with a solder build-up to prevent damage to t
15、he laser diode.To connect to the PC board, be sure to open by removing the solder build-up, and finishthe workquickly. 3. Take care not to apply excessive stress to the flexible board (FFC). 4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted. G Grounding for
16、electrostatic breakdown prevention 1. Human body grounding Use the anti-static wrist strap to discharge the static electricity from your body. 2. Work table grounding Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is placed, and ground the sheet
17、. Caution : The static electricity of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the traverse deck (optical pickup). Caution when Replacing the Traverse Deck : The traverse deck has a short point shorted with solder to protect the laer diod
18、e against electroststics breakdown. Be sure to remove the solder from the short point before making connections. TOP PREVIOUS NEXT 8 Operation Checks and Component Replacement Procedures TOP PREVIOUS NEXT “ATTENTION SERVICER” Some chassis components may have sharp edges. Be careful when disassemblin
19、g and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. 2. For reassembly after operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when re
20、quired. 3. Select items from the following index when checks or replacement are required. Warning: This product uses a laser diode. Refer to caution statement Precaution of Laser Diode. 8.1 Checking for Main P.C.B. 8.2 Disassembly for the CD changer ass y 8.2.1 Disassembly for the CD Lid 8.2.2 Disas
21、sembly for CD changer unit 8.3 Checking for the unit operational condition 8.3.1 Initial setting of CD 8.3.2 Checking for the CD Servo P.C.B., Panel P.C.B., Deck P.C.B., Transformer P.C.B. and Power P.C.B. 8.3.3 Replacement of the Power Amplifier IC 8.4 Main Component Replacement Procedures 8.4.1 Re
22、placement of the Traverse Deck 8.5 Replacement for the disc tray 8.6 Disassembly and reassembly for mechanism base drive unit 8.7 Replacement for the motor ass y 8.8 Replacement for the pinch roller ass y and head block 8.9 Replacement for the CD motor ass y, capstan belt A, capstan belt B and windi
23、ng belt 8.10 Replacement for the CD motor ass y, capstan belt A, capstan belt B and winding belt 8.11 Replacement for the cassette lid ass y 8.12 Measure for tape trouble TOP PREVIOUS NEXT 8.1 Checking for Main P.C.B. TOP PREVIOUS NEXT Step 1 Remove 3 screws each side and 5 screws at rear panel. Ste
24、p 2 Lift up both sides of cabinet assy, push the cabinet assy toward the rear and remove the cabinet assy. G Checking the Main P.C.B. as shown below. TOP PREVIOUS NEXT 8.2 Disassembly for the CD changer ass y TOP PREVIOUS NEXT (The CD changer unit can be removed after the CD Lid is removed) 8.2.1 Di
25、sassembly for the CD Lid 8.2.2 Disassembly for CD changer unit TOP PREVIOUS NEXT 8.2.1 Disassembly for the CD Lid TOP PREVIOUS NEXT G Follow the (Step 1) - (Step 2) of Item 8.1. When opening the disc tray automatically (Using Power Supply) Step 1 Connect the AC power cord. Step 2 Press the POWER but
26、ton to power up the main unit. Step 3 Press the OPEN/CLOSE button, the disc tray will be open automatically. Step 4 Release the 2 claws, and then remove the CD Lid. Step 5 Press the POWER button to turn the power on. Step 6 Press the OPEN/CLOSE button, the disc tray will be close. Open the disc tray
27、 manually (Using service tools) Step 1 Upset the unit as shown below. Step 2 Insert the gear tool into the hole on the underside of CD chasis and then rotate in the direction of arrow. The disc tray will be open. Step 3 Release the 2 claws, and then remove the CD lid cover. Step 4 Push the disc tray
28、. TOP PREVIOUS NEXT 8.2.2 Disassembly for CD changer unit TOP PREVIOUS NEXT G Follow the (Step 1) - (Step 2) of Item 8.1. G Follow the Disassembly for the CD Lid of Item 8.2.1. Step 1 Remove 2 screws at rear cabinet as show below. Step 2 Lift up the mechanism unit cover, and then push in the mechani
29、sm unit cover. Step 3 Release the claws of both ends, and then lift up the CD changer unit. Step 4 Upset the CD changer unit. Step 5 Place the CD changer unit on the unit. TOP PREVIOUS NEXT 8.3 Checking for the unit operational condition TOP PREVIOUS NEXT (Place the unit horizontally when loading th
30、e CD changer unit.) 8.3.1 Initial setting of CD 8.3.2 Checking for the CD Servo P.C.B., Panel P.C.B., Deck P.C.B., Transformer P.C.B. and Power P.C.B. 8.3.3 Replacement of the Power Amplifier IC TOP PREVIOUS NEXT 8.3.1 Initial setting of CD TOP PREVIOUS NEXT G Follow the (Step 1) - (Step 2) of Item
31、8.1. G Follow the Disassembly for the CD Lid of Item 8.2.1. Step 1 Connect the AC power cord. Step 2 Press POWER button to turn on power for main unit. Step 3 Select the input select button to “CD”. Step 4 Push the OPEN/CLOSE button, and then open the disc tray. Step 5 Put the CD into the disc tray.
32、 Step 6 Press the OPEN/CLOSE button 1, and then close the disc tray. (Then, the CD will load.) TOP PREVIOUS NEXT 8.3.2 Checking for the CD Servo P.C.B., Panel P. C.B., Deck P.C.B., Transformer P.C.B. and Power P.C.B. TOP PREVIOUS NEXT G Follow the (Step 1) - (Step 2) of Item 8.1. G Follow the Disass
33、embly for the CD Lid of Item 8.2.1. G The initial setting of CD unit must be completed. (Refer to the initial setting of CD unit in Item 8.3.1). G Check for CD Servo P.C.B. G The initial setting of CD unit must be completed. (Refer to the initial setting of CD unit in item 8.3.1.) Step 1 Push the po
34、wer button and the power turns OFF. Step 2 Remove the FFC boards. Step 3 Remove the CD changer unit. Step 4 Remove 4 screws. Step 5 Remove the mechanism unit cover. G Check the CD Servo P.C.B. as shown below Step 6 Lay the unit. Step 7 Connect the FFC board (19 pin) from CD servo P.C.B. Step 1 Press
35、 the POWER button and the power turns off. Step 2 Remove the connectors. Step 3 Pull out the FFCs. Step 4 Remove the CD changer unit. Step 5 Lay the unit as shown below. Step 6 Remove 2 screws. Step 7 Release the 2 claws, and then draw the front panel assy. G Check the Panel P.C.B., Deck P.C.B. and
36、Transformer P.C.B. as shown below Step 8 Release the 6 screws, and then remove the rear cover. G Checking the Power P.C.B. as shown below G Follow the (Step 1) - (Step 2) of Item 8.1. G Follow the (Step 1) - (Step 6) of Disassembly for the CD Lid of Item 8.2.1. G Follow the (Step 1) - (Step 8) of Ch
37、ecking for Panel P.C.B.,Deck P.C.B., Transformer P.C.B. and Power P.C.B. of Item 8.3.2. NOTE: Insulate Power P.C.B. with insulation material to avoid short circuit. TOP PREVIOUS NEXT 8.3.3 Replacement of the Power Amplifier IC TOP PREVIOUS NEXT G Checking the Power P.C.B. G Follow the (Step 1) - (St
38、ep 2) of Item 8.1. Step 1 Remove the 2 screws fixed to the Power Amplifier IC. Step 2 Remove 2 screws fixed to the Power Amplifier IC and Transistor Holders. Step 3 Break the joint with a metal cutter as shown below. Step 4 Unsolder the terminals of Power Amp IC, transistor and replace the component
39、. Step 5 Fix back the chasis with a screw as shown. TOP PREVIOUS NEXT 8.4 Main Component Replacement Procedures TOP PREVIOUS NEXT 8.4.1 Replacement of the Traverse Deck TOP PREVIOUS NEXT 8.4.1 Replacement of the Traverse Deck TOP PREVIOUS NEXT G Follow the (Step 1) - (Step 2) of Item 8.1. G Follow t
40、he (Step 1) - (Step 6) of Disassembly for the CD Lid of Item 8.2.1. G Follow the Disassembly instruction for the CD changer unit of Item 8.2.2. Step 1 Push the power button and the power turns OFF. Step 2 Remove the FFC boards. Step 3 Remove the CD changer unit. Step 4 Insert the gear with hexagonal
41、 wrench into the hole. Step 5 Rotate the hexagonal wrench in the direction of arrow (clockwise), and then open the disc tray fully. Step 6 With pressing the claw (A), rotate the hexagonal wrench clockwise. (The slide plate R moves for a little amount.) Step 7 Pressing the claw (B) in the direction o
42、f arrow (1), the connection lever moves in the direction of arrow (2). Step 8 Lift up the traverse deck assy. Step 9 Remove the traverse deck assy from the timing lever. Caution: When removing or inserting the traverse deck avoid touching the OPU lens and pressing onto the turntable. Step 10 Remove
43、3 screws. Step 11 Unsolder the motor terminals (4 points). Step 12 Remove the FFC board from the connector, and then remove the CD Servo P.C.B. Step 13 Remove the pin. Step 14 Release the claw, and then remove the traverse deck assy. Note: Be careful not to lose the 3 floating spring because those w
44、ill also be removed on removal of the traverse deck assy. G Installation of the CD Servo P.C.B. after replacement Step 1 Connect the FFC board. Step 2 Install the CD servo P.C.B. in the traverse deck assy. Step 3 Remove 3 screws. Step 4 Solder. G Note for installation of the CD servo P.C.B. G Instal
45、lation for traverse deck assy Step 1 Install the traverse deck assy to the timing lever. Step 2 Align the boss of traverse deck assy with the slot of traverse cam gear. Step 3 Force the claw of timing lever. Step 4 Force the disc tray fully. Step 5 With pressing the claw (B) in the direction of arro
46、w (1), force the connection lever in the direction of arrow (2). TOP PREVIOUS NEXT 8.5 Replacement for the disc tray TOP PREVIOUS NEXT G Follow the (Step 1) - (Step 2) of Item 8.1 G Follow the Disassembly for the CD Lid of Item 8.2.1. G Follow the Disassembly for the CD Changer Unit of Item 8.2.2. G
47、 Follow the (Step 1) - (Step 8) of Item 8.4 Step 1 Remove 4 screws. Step 2 Remove the upper plate. Step 3 Remove 3 screws. Step 4 With lifting the claw in the direction of (1), draw the clamp SW P.C.B. in the direction of arrow (2). Step 5 Remove the mechanism cover. Step 6 Insert the gear with hexa
48、gonal wrench into the hole. Step 7 Rotate the hexagonal wrench in the direction of arrow, and then open the disc tray fully. Step 8 Release the both claws, and then draw the disc tray. Step 9 With forcing the left guide bar manually because the left guide bar interfers with claw, draw the disc tray.
49、 Installation of the disc tray after replacement Step 1 Slide the drive rack fully in the direction of arrow. Step 2 Holding the drive rack not to move, install the disc tray. Step 3 Align the drive rack with the drive gear. NOTE: Force the right guide bar of tray base manually not to move upwards. Step 4 Holding the
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