ORDER NO. MD0411549C3 CD Stereo System SA-AK330GC SA-AK330GN Colour (S)... Silver Type Specifications n AMPLIFIER SECTION 250 mV,14.7 kΩ RMS output power Phone jack THD 10%, both channels driven Terminal Stereo, 3.5 mm jack 1 kHz n CASSETTE DECK SECTION (Low channel) 90 W per channel (5 Ω)
SA-AK330GC / SA-AK330GN 44.1 kHz Dimensions (W x H x D) 250 x 330 x 341 mm Decoding 16 bit linear Mass 7.1 kg Digital filter 8 fs Operating temperature range +5 to +35°C D/A converter MASH (1 bit DAC)
Page 3
SA-AK330GC / SA-AK330GN 16.2. (B) Main (Tuner) Circuit 18 Wiring Connection Diagram 16.3. (B) Main Circuit 19 Illustration of IC 痴, Transistors and Diodes 16.4. (C) Panel Circuit 20 Terminal Function of IC 痴 16.5. (D) Transformer Circuit, (E) CD Detect Circuit, (F) Spindle 20.1.
SA-AK330GC / SA-AK330GN 1 Before Repair and Adjustment Disconnect AC power, discharge Power Supply Capacitors C5820 and C5840 through a 10Ω, 5W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
SA-AK330GC / SA-AK330GN 3 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip”...
SA-AK330GC / SA-AK330GN 5 Handling Precautions For Traverse Deck 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).
SA-AK330GC / SA-AK330GN 6 Precaution of Laser Diode Caution : This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick up lens. Wavelength : 780 nm Maximum output radiation power from pick up : 100 µW/VDE Laser radiation from pick up unit is safety level, but be sure the followings: 1.
SA-AK330GC / SA-AK330GN 9 Disassembly and Assembly of Main Component “ATTENTION SERVICER” Some chassis components may have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components.
SA-AK330GC / SA-AK330GN 9.2. Gear for servicing (jig) Information 1. This unit has a gear which is used for checking items (Open/Close of disc tray, up/down operation of traverse unit by manually) when servicing. 2. For preparation of gear (for servicing), perform the procedures as follows.
SA-AK330GC / SA-AK330GN 9.3. Disassembly of Top Cabinet Step 1 Remove 2 screws at each side and 5 screws at rear panel. Step 2 Lift up both sides of the top cabinet, push the top cabinet towards the rear and remove the top cabinet.
Page 14
SA-AK330GC / SA-AK330GN Step 2 Release the 2 claws, and then remove the CD lid cover. Step 6 Press the POWER button to turn the power off. · [Opening the disc tray manually (Using service tools)] Step 3 Repeat Step 2 but rotate the gear tools in anti-clockwise direction.
SA-AK330GC / SA-AK330GN 9.5. Disassembly of Rear Panel · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet Step 1 Remove 7 screws and disconnect wire CN2810 (Fan) at rear cabinet as shown. 9.6.
SA-AK330GC / SA-AK330GN 9.7. Disassembly of Main P.C.B. · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid ·...
SA-AK330GC / SA-AK330GN · Replacement of the Power Amplifier IC/ Voltage Regulator Step 1 Remove 2 screws fixed to the Power Amplifier IC and 1 Step 3 Unsolder the terminals of Power Amp IC, transistor and screw to Voltage Regulator.
SA-AK330GC / SA-AK330GN 9.10. Disassembly of Front Panel Unit · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid ·...
SA-AK330GC / SA-AK330GN Step 7 Unsolder the motor terminals. Step 8 Remove Deck Mechanism P.C.B. 9.12. CD Mechanism Main Component Replacement Procedures · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid ·...
Page 20
SA-AK330GC / SA-AK330GN Step 6 Lift up the traverse deck ass’y. Step 10 Remove the FFC board from the connector, and then remove the CD Servo P.C.B. Step 7 Remove the traverse deck ass’y from the timing lever. Caution: When removing or inserting the traverse deck avoid touching the OPU lens and pressing onto the turntable.
Page 21
SA-AK330GC / SA-AK330GN Note: Step 1 Install the traverse deck ass’y to the timing lever. Be careful not to lose the 3 floating spring because those will Step 2 Align the boss of traverse deck ass’y with the slot of also be removed on removal of the traverse deck ass’y.
Page 22
SA-AK330GC / SA-AK330GN Step 5 With pressing the claw (B) in the direction of arrow (1), force the connection lever in the direction of arrow (2). 9.12.2. Replacement for the Disc Tray Step 1 Remove 4 screws. Step 2 Remove the upper plate.
Page 23
SA-AK330GC / SA-AK330GN Step 2 Holding the drive rack not to move, install the disc tray. Step 8 Release the both claws, and then draw the disc tray. Step 3 Align the drive rack with the drive gear. Step 9 With forcing the left guide bar manually because the left NOTE: guide bar interfers with claw, draw the disc tray.
Page 24
SA-AK330GC / SA-AK330GN 9.12.3. Disassembly and reassembly for mechanism base drive unit Step 1 Remove 3 screws. Step 2 Release the claw, and then remove the gear holder. Step 3 Remove the belt and change gear spring. NOTE: Step 6 Install the tray lock spring to hook temporary.
Page 25
SA-AK330GC / SA-AK330GN Step 11 Lift up the left end of spindle base unit in the direction of arrow (1), and then remove the unit in the direction of arrow (2). Step 9 Pressing the claw (B) in the direction of arrow (1), force the connection lever in the direction of arrow (2).
Page 26
SA-AK330GC / SA-AK330GN Step 3 Rotate the disc lever in the direction of arrow (1), draw the disc lever. Step 13 Remove the traverse relay gear, traverse cam gear and drive gear. [Dissassembly/reassembly for the spindle base unit] Step 1 Draw the 5 disc spacers.
Page 27
SA-AK330GC / SA-AK330GN NOTE: Hold the loading stopper ass’y manually bacause it is flipped by spring. Step 8 Release the 2 claws, and then remove the relay gear A. Step 9 Release the 2 claws, and then remove the spindle shaft.
Page 28
SA-AK330GC / SA-AK330GN spread the hold bars of loading stopper and remove the UP/DOWN base. [Installation for loading stopper ass’y] Step 1 Align the claw of loading stoppers ass’y with the slot of spindle base. (Caution should be exercised when alignment of claw due to the size of claws.)
Page 29
SA-AK330GC / SA-AK330GN Step 1 Install the traverse cam gear. Step 2 Rotate the traverse cam gear to the direction of arrow. Step 4 Install the slide plate 2 to the mechanism base, and Step 3 Install the drive gear and traverse relay gear.
Page 30
SA-AK330GC / SA-AK330GN Step 7 Move the slide plate 1 to forward fully. Step 8 Install the rear lock. (The claw should be latched.) Step 9 Install the Spindle Position P.C.B.. (The claw should be latched.) Step 10 Install the tray lock. (The claw should be latched.) Step 11 Remove the tray lock spring from hook,and then latch to the tray lock.
Page 31
SA-AK330GC / SA-AK330GN Step 14 Install the tray base, traverse ass’y, mechanism cover and upper plate. [Operation check after servicing] Check the proper operation of following items with gear and hexagonal screwdriver. 1. Open/close of tray base. 2. Moving the tray base to the stock side.
SA-AK330GC / SA-AK330GN 9.13. Replacement for the pinch roller ass’y and head block · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 9.4 - Disassembly of CD Lid ·...
Page 33
SA-AK330GC / SA-AK330GN Step 5 Remove the flywheel R. Step 6 Release the claw of tape side, and then remove the winding lever and spring. Step 7 Remove the flywheel F. [Installation of the belt] Step 1 The boss and marking should be positioned horizontally.
Page 34
SA-AK330GC / SA-AK330GN Step 7 Put the capstan belt A temporarily as shown below. Step 10 Remove 3 screws. Step 11 Put the capstan belt B as shown below. Step 8 Put the capstan belt B on the motor ass’y pulley.
SA-AK330GC / SA-AK330GN 9.15. Replacement for the cassette lid ass’y · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet Step 1 Lift up the lever upward, open the cassette lid ass’y. (For DECK1 and DECK2) Step 2 Push up the cassette lid ass’y in the direction of arrow.
SA-AK330GC / SA-AK330GN 9.16. Rectification for tape jam problem · Follow the (Step 1) - (Step 2) of Item 9.3 - Disassembly of Top Cabinet Step 1 If a cassette tape cannot be removed from the deck (the tape is caught by the capstan or pinch roller during playback or recording), rotate the flywheel F in the direction of the arrow to remove it.
SA-AK330GC / SA-AK330GN 10 Checking for major P.C.B. Note: Checking of all major P.C.Bs (Main P.C.B., Panel P.C.B., Transformer P.C.B., Deck P.C.B., Deck Mechanism P.C.B. and Power P.C.B.) can be carried out using below procedures. For the disassembling procedure, refer Section 9.
SA-AK330GC / SA-AK330GN 10.2. Checking of Transformer P.C.B. 1. Remove Top Cabinet and Rear Panel. 2. Remove CD Lid. 3. Disassemble CD Mechanism Unit. 4. Connect FFC wires (CN2801 & CN2805) from CD Mechanism Unit.
SA-AK330GC / SA-AK330GN 10.3. Checking of Panel, Deck & Deck Mechanism P.C.B. 1. Remove Top Cabinet. 2. Remove CD Lid. 3. Disassemble CD Mechanism Unit. 4. Remove volume knob at Front Panel Unit. 5. Disassemble Panel P.C.B. 6. Disassemble Deck Mechanism Unit.
SA-AK330GC / SA-AK330GN 10.4. Checking of Power P.C.B. 1. Remove Top Cabinet and Rear Panel. 2. Remove CD Lid. 3. Disassemble CD Mechanism Unit. 4. Remove 3 screws at Transformer P.C.B.. 5. Remove 2 screws at heat sink and 1 screw at Power P.C.B.
SA-AK330GC / SA-AK330GN 11 Self-Diagnostic Function 11.1. Self-diagnostic display This unit is equipped with a self-diagnostic display function which, will display an error code corresponding to the problem occuring. Use this function when performing checking maintenance on the unit. 11.2. How to enter the Self-Diagnostic Function 11.3.
SA-AK330GC / SA-AK330GN 3. Press to close the tray. 4. Press “CD DIRECT PLAY (5)” and wait until the tray is open. 5. Press and remove the CD. 6. Press to close the tray. 7. Press “n/STOP” to indicate Error Code.
Page 43
SA-AK330GC / SA-AK330GN 11.8.3. Power supply related error detection Abnormal Items Error Display Method of Detection POWER AMP output abnormal During normal operation, if DCDET becomes ‘L’, normal POWER OFF process shall not be executed, PCNT shall be switched to ‘L’...
SA-AK330GC / SA-AK330GN 12 CD Test Mode Function This CD test mode is provided to check CD unit without connecting to changer loading mechanism. This mode shall operate CD PLAY with CD unit being connected only and CD Automatic Alignment result is shown on FL display.
SA-AK330GC / SA-AK330GN · It shall move up one counter when the above operations ends. The counter will reset to 00000 when 99999 is reached. · To exit CD aging test mode, press button, the tray will return to its PLAY position and power will be off.
SA-AK330GC / SA-AK330GN 13 Measurements and Adjustments 13.1. Cassette Deck Section standard value. Bias voltage for Deck 2 14±4mV (Normal) · Measurement Condition Erase voltage for Deck 2 80mV (Normal) − − − − Make sure head, capstan and press roller are clean.
SA-AK330GC / SA-AK330GN 9. Set AM-SG to 520kHz. 10. Receive 520kHz in the unit. 11. Adjust L2602 (OSC) so that the EVM-DC value is with 1.1±0.5V. Fig.6 13.2.2. AM RF Adjustment 1. Connect the instrument as shown in Fig. 7.
SA-AK330GC / SA-AK330GN 16 Schematic Diagram (All schematic diagrams may be modified at any time with the development of the new technology) Note: : Push switch : Push switch : Open switch : CD switch : Load switch S951 : Mode switch...
SA-AK330GC / SA-AK330GN 16.2. (B) Main (Tuner) Circuit SCHEMATIC DIAGRAM - 3 : +B SIGNAL LINE : FM SIGNAL LINE : AM SIGNAL LINE : FM/AM SIGNAL LINE : FM OSC SIGNAL LINE : AM OSC SIGNAL LINE MAIN (TUNER) CIRCUIT...
SA-AK330GC / SA-AK330GN 16.3. (B) Main Circuit SCHEMATIC DIAGRAM - 4 : PLAYBACK SIGNAL LINE : AUX SIGNAL LINE : +B SIGNAL LINE : RECORD SIGNAL LINE : MAIN SIGNAL LINE : -B SIGNAL LINE MAIN CIRCUIT Q2980 B1GDCFJJ0023 Q2978...
SA-AK330GC / SA-AK330GN SCHEMATIC DIAGRAM - 5 : CD SIGNAL LINE : +B SIGNAL LINE PANEL CIRCUIT : -B SIGNAL LINE (CN6601) ON : MAIN SIGNAL LINE SCHEMATIC DIAGRAM-10 MAIN CIRCUIT CN2806 30 29 28 27 26 25 15 14 13 12 11 10...
Page 63
SA-AK330GC / SA-AK330GN SCHEMATIC DIAGRAM - 6 : -B SIGNAL LINE : +B SIGNAL LINE TO FAN UNIT MAIN CIRCUIT CN2810 R2591 R2338 D2332 330K B0ADCC000002 R2337 C2334 R2333 C2332 470K 0.22 R2439 R2339 R2331 R2715 Q2706 R2592 C2331 2SD0601AHL...
Page 65
SA-AK330GC / SA-AK330GN SCHEMATIC DIAGRAM - 8 : +B SIGNAL LINE : AUX SIGNAL LINE : MAIN SIGNAL LINE : -B SIGNAL LINE : CD SIGNAL LINE : PLAYBACK SIGNAL LINE : RECORD SIGNAL LINE : FM/AM SIGNAL LINE MAIN CIRCUIT...
SA-AK330GC / SA-AK330GN 16.4. (C) Panel Circuit SCHEMATIC DIAGRAM - 9 : +B SIGNAL LINE : MAIN SIGNAL LINE : -B SIGNAL LINE PANEL CIRCUIT SYS6V S6210 R6458 DECK1 4.7K OPEN D6458 S6209 B3AAA00000583 POWER KEY3 S6301 R6399 S6208 OPEN/CLOSE...
SA-AK330GC / SA-AK330GN 16.6. (H) Power Circuit SCHEMATIC DIAGRAM - 12 : -B SIGNAL LINE : MAIN SIGNAL LINE : +B SIGNAL LINE POWER CIRCUIT IC5801 IC5801 RSN315H42C-P POWER HIC C5801 HIGH 0.01 C5445 CHANNEL C5245 R5855 R5857 R5452 R5252 0.047...
SA-AK330GC / SA-AK330GN 16.7. (I) Deck Circuit & (J) Deck Mechanism Circuit SCHEMATIC DIAGRAM -13 : +B SIGNAL LINE : PLAYBACK SIGNAL LINE : RECORD SIGNAL LINE DECK CIRCUIT C1038 R1055 C1057 220P C1034 2.2K 1000P 50V3.3 C1044 10V33 R1101...
Page 71
SA-AK330GC / SA-AK330GN SCHEMATIC DIAGRAM - 14 : PLAYBACK SIGNAL LINE : +B SIGNAL LINE : RECORD SIGNAL LINE MAIN CIRCUIT (CN2803) ON SCHEMATIC DIAGRAM-4 DECK CIRCUIT CN1001 14 13 12 11 10 C1064 R1098 R1060 R1057 2.2K R1097 R1091...
SA-AK330GC / SA-AK330GN 17 Printed Circuit Board Note: Circuit board diagrams may be modified at any time with the development of new technology. 17.1. (A) CD Servo P.C.B. CD SERVO P.C.B (REPX0443A) C7670 R7217 C7223 C7601 C7106 C7105 W7011 R7212...
SA-AK330GC / SA-AK330GN 18 Wiring Connection Diagram FM ANT AM ANT H5950/ W5950 JK2601 JK2801 To Fan CD LOADING P.C.B CN5801 CN2809 CN2810 TUNER PACK SOLDER SIDE P.C.B MAIN P.C.B SOLDER SIDE CN2805 TUNER PACK (REP1999B) CD DETECT P.C.B SOLDER SIDE 13 14 POWER P.C.B...
SA-AK330GC / SA-AK330GN 20 Terminal Function of IC’s 20.1. IC7002 (MN6627953HB) Servo Pin No. Mark Function AVDD2 Analog circuit power supply 2 processor/ Digital signal OUTL LCH output signal processor/ Digital filter/ D/A AVSS1 Audio output circuit GND 1 N.C.
SA-AK330GC / SA-AK330GN Pin No. Mark Function Pin No. Mark Function Motor driver (2) forward-action REG 1 Region Setting 1 (Tuner) output MUTE_H HIC Mute Motor driver (3) reverse-action MUTE_A Audio Mute output EE_CS/EFP_/EPM EEPROM Chip Select Crystal oscillating circuit input (f =...
Page 86
SA-AK330GC / SA-AK330GN Pin No. Mark Function PHOTO_1 Rotation Detection Signal (Deck 1) VREF Reference for A-D (5V) AVcc Analog Power Supply Input Demo (H= default demo on, L= default demo off.)
SA-AK330GC / SA-AK330GN 22 Parts Location and Replacement Parts List Notes: · Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardent (resistors), high-quality sound (capacitors), low noise (resistors), etc are used.
SA-AK330GC / SA-AK330GN 22.1.2. Deck Mechanism Parts List Ref. No. Part No. Part Name & Description Remarks CASSETTE DECK RED0069 R/P HEAD BLOCK UNIT RED0070 P/B HEAD BLOCK UNIT RDG0300 REEL BASE GEAR RDG0301 WINDING RELAY GEAR RDK0026 MAIN GEAR...
SA-AK330GC / SA-AK330GN 22.2.2. CD Loading Mechanism Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks TRAVERSE DECK XTN2+6G SCREW RMX0141 PUSH SPACER RML0517 TIMING LEVER RMQ0749 UPPER SPINDLE...
SA-AK330GC / SA-AK330GN 22.3.2. Cabinet Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks CABINET AND CHASSIS RKFX0126-S CASS LID R RKMX0105-S TOP CABINET L6FALEFH0030 RMBX0036 CASS OPEN SPRING...
Page 98
SA-AK330GC / SA-AK330GN Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks Q5953 B1AACF000064 TRANSISTOR Q6411 B1ACKD000004 TRANSISTOR SWITCHES Q6415 B1ACKD000004 TRANSISTOR Q6421 B1GACFLL0007 TRANSISTOR S951 K0J1BB000017 SW MODE Q6425 B1GACFLL0007...
Page 99
SA-AK330GC / SA-AK330GN Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks L2996 ERJ3GEY0R00V CHIP JUMPER W2904 ERJ3GEY0R00V CHIP JUMPER W2905 ERJ3GEY0R00V CHIP JUMPER T5950 ETP76VST62HB POWER TRANSFORMER W2906 ERJ3GEY0R00V CHIP JUMPER...
Page 100
SA-AK330GC / SA-AK330GN Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks ERDS2TJ564T 560K 1/4W R2149 ERJ3GEYJ222V 2.2K 1/16W ERDS2TJ391T 390 1/4W R2152 ERJ3GEY0R00V 0 1/16W ERDS2TJ272T 2.7K 1/4W R2154 ERJ3GEYJ104V...
Page 101
SA-AK330GC / SA-AK330GN Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2511 ERJ3GEYJ104V 100K 1/16W R2651 ERJ3GEYJ820V 82 1/16W R2512 ERJ3GEY0R00V 0 1/16W R2652 ERJ3GEY0R00V 0 1/16W R2513 ERJ3GEYJ102V 1K 1/16W...
Page 102
SA-AK330GC / SA-AK330GN Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2916 ERJ3GEYJ472V 4.7K 1/16W R5820 D0C18R2JA020 8.2 1W [M]GC R2917 ERJ3GEY0R00V 0 1/16W R5820 ERDS1FVJ8R2T 8.2 1/2W [M]GN R2918...
Page 103
SA-AK330GC / SA-AK330GN Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R6601 ERDS2TJ471T 470 1/4W C1027 ECJ1VB1H102K 1000P 50V R6602 ERDS2TJ471T 470 1/4W C1030 ECEA1AKA101B 100 10V R6603 ERDS2TJ221T 220 1/4W...
Page 104
SA-AK330GC / SA-AK330GN Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C2251 ECA1CM100B 10 16V C2642 ECEA1HKA010B 1 50V C2266 ECJ1VB1H102K 1000P 50V C2643 ECJ1VB1H682K 6800P 50V C2281 ECJ1VB1H822K 8200P 50V...