Aiwa 4ZG-1 Service Manual
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Aiwa 4ZG-1 Service Manual

Aiwa 4ZG-1 Service Manual

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4ZG-1
CD MECHANISM
•
:
•
:
TYPE
English
BASIC CD MECHANISM
3ZG-2 E1
CORRECTION
Wong : S/M Code No.09-983-249-8OT
Correct : S/M Code No.09-985-249-8OT
BASIC NAME
DERIVATION NAME
4ZG-1
V
O
S1
D
SH
This Service Manual has various derivation.Derivation name is indicated
by the Service Manual for each model.
.
S/M Code No
09-985-249-80T

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Summary of Contents for Aiwa 4ZG-1

  • Page 1 4ZG-1 CD MECHANISM • • TYPE English BASIC CD MECHANISM 3ZG-2 E1 CORRECTION Wong : S/M Code No.09-983-249-8OT Correct : S/M Code No.09-985-249-8OT BASIC NAME DERIVATION NAME 4ZG-1 This Service Manual has various derivation.Derivation name is indicated by the Service Manual for each model.

  • Page 2: Protection Of Eyes From Laser Beam During Servicing

    PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs laser. Therefore, be sure to follow carefully the CAUTION instructions below when servicing. Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous WARNING! radiation exposure.
  • Page 3 This is the SERVICE MANUAL for the BASIC CD MECHANISM of BASIC NAME: 4ZG-1. This BASIC NAME includes the following models as shown under the SUFFIX name: DERIVATION NAME. Please use this manual with the separate SERVICE MANUAL for DERIVATION NAME.
  • Page 4 How to Adjust the Rotating Phase of the Gear, Main Cam 1) Push down the hooking catch of the CHAS. MECH, and remove the TRAY. 2) Align the arrow mark of the Gear, Main Cam with the black round mark of the CHAS, MECHA as shown below. 3) Confirm that the Slide, Mech Cam is located in the right position, then insert the TRAY gently.

  • Page 5: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C135 87-010-196-080 CHIP CAPACITOR,0.1-25 C136 87-010-196-080 CHIP CAPACITOR,0.1-25 87-A20-547-010 C-IC,CXA1992AR C137 87-010-196-080 CHIP CAPACITOR,0.1-25 87-A20-919-040 C-IC,BA5915FP C138 87-010-182-080 C-CAP,S 2200P-50 B 87-A20-917-010 C-IC,CXD2540Q-1/2 C139 87-010-197-080 CAP, CHIP 0.01 DM 84-ZG1-697-010...
  • Page 6 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C527 87-010-197-080 CAP, CHIP 0.01 DM L506 87-005-204-080 COIL,47UH C528 87-010-197-080 CAP, CHIP 0.01 DM L507 87-005-204-080 COIL,47UH C529 87-010-197-080 CAP, CHIP 0.01 DM L508 87-005-817-080 C-COIL, 33UH J FLC32 C530 87-010-197-080 CAP, CHIP 0.01 DM...

  • Page 7: Transistor Illustration

    • Regarding connectors, they are not stocked as they are not the initial order items. The connectors are available after they are supplied from connector manufacturers upon the order is received. / CHIP RESISTOR PART CODE Chip Resistor Part Coding Figure Resistor Code Value of resistor...
  • Page 8 BLOCK DIAGRAM...
  • Page 9 WIRING-1...
  • Page 10 WIRING-2...
  • Page 11 WIRING-3...
  • Page 12 SCHEMATIC DIAGRAM-1...
  • Page 13 SCHEMATIC DIAGRAM-2 C560 0.01...

  • Page 14: Wave Form

    WAVE FORM IC101 Pin (RF-O) VOLT/DIV: 200mV IC504 Pin UCAS VOLT/DIV: 1V TIME/DIV: 0.5µS (Pin LCAS) TIME/DIV: 2µS 1.2±0.1Vp-p EYE PATTERN must be CLEAR and MAX IC501 Pin DA XCK VOLT/DIV: 1V 16.93MHz TIME/DIV: 20nS IC501 Pin VSync VOLT/DIV: 1V NTSC TIME/DIV: 5mS IC501 Pin...
  • Page 15 IC DESCRIPTION IC, CXA1992AR Pin No. Pin Name Description Output terminal for focus error amplifier. Internally connected to window comparator input for bias condition. Input terminal for focus error. FDFCT Capacitor connection terminal for time constant used when there is defect. This pin is connected to GND via capacitor when high frequency gain of the focus servo is attenuated.
  • Page 16 Pin No. Pin Name Description RF_I Input terminal by capacity combination of RF summing amplifier. RF_O Output terminal of RF summing amplifier. Checkpoint of Eye pattern. Anti-reverse input terminal for RF summing amplifier. RF_M The gain of RF amplifier is decided by the connection resistance between RF_M and RFO terminals.
  • Page 17 IC, CXD2540Q Pin No. Pin Name Description Focus OK input. Used for SENS output and the servo auto sequencer. Spindle motor output filter switching output. Spindle motor on/off control output. Spindle motor servo control. High, when sampled value of GFS at 460Hz is high. LOCK Low, when sampled value of GFS at 460Hz is low by 8 times successively.
  • Page 18 Pin No. Pin Name Description DA11 DA11 output when PSSL=1. GTOP output when PSSL=0. DA10 DA10 output when PSSL=1. XUGF output when PSSL=0. DA09 DA09 output when PSSL=1. XPLCK output when PSSL=0. DA08 DA08 output when PSSL=1. GFS output when PSSL=0. DA07 DA07 output when PSSL=1.
  • Page 19 Pin No. Pin Name Description DATO Serial data output to SSP. XLTO Serial data latch output to SSP. Latched at the falling edge. CLKO Serial data transfer clock output to SSP. Mirror signal input. Used when the number of tracks is 128 or more for the 2N-track MIRR jump and M track move of the auto sequencer.
  • Page 20 IC, CL680 Pin No. Pin Name Description — No connection. — GND. CD BCK Bit clock input from CD DSP. CD DATA Data input from CD DSP. CD LRCK LRCK input from CD DSP. CD C2PO C2 pointer input from CD DSP. —...
  • Page 21 Pin No. Pin Name Description Y OUT Video signal “Y” OUT. AVDD DAC — Analog power supply (DAC) 3.3V. AGND DAC — Analog ground. R REF Reference resistor input. V REF Voltage reference input. AVDD DAC — Analog power supply (DAC) : 3.3V. C OUT Video signal “C”...
  • Page 22 Pin No. Pin Name Description __________ HINT Micon interface. (Host interrupt) CDG SCK CD-G serial clock input. — Ground. Micon interface. (Host clock) VDD3 — Power supply 3.3V. HD IN Micon interface. (Host data in) VDD3 — Power supply 3.3V. HSEL Micon interface.
  • Page 23 IC, LC74781M Pin No. Pin Name Description VSS1 — GND connection terminal. (Digital ground terminal). Xtal IN External X’tal and capacitor for internal sync generator, or the external clock are Xtal OUT connected to this terminal. (2fsc or 4fsc). Either the external clock input mode or the X’tal generator mode is selected by this CTRL1 selector terminal.
  • Page 24 Pin No. Pin Name Description ______________ Controls whether or not to input the VSYNC signal to the SEPIN input. L: to input the CTRL3 ______________ ______________ VSYNC signal. H: not to input the VSYNC signal. ________ System reset input terminal. Pull-up resistor is built-in. (Hysteresis input). VDD1 —...
  • Page 25 IC, µPD78016FGC Pin No. Pin Name Description RBPLS RADIAL BALANCE PLUS. AMUTE AUDIO ANALOG MUTE (H=MUTE ON). GFS. XVCDMD AUDIO/VIDEO CD MODE (L=VCD=SPINDLE GAIN UP). DOUT MUTE CONT. EMPH EMPHASIS. SQSO SQDATA FROM CD. SQCK SQCLK TO CD. — GND. SWNT SW TV OUT MODE (L=NTSC).
  • Page 26 Pin No. Pin Name Description 8.0MHz CERALOCK. — GND. — Nou used. 5.0VDD. AVSS — GND. XMPGRST MPEG BLOCK IC RESET. HSEL ADDRESS/DATA SEL TO CL680. INLSW INSIDE LIMIT SW . — Nou used. OSDXCS OSD CHIP SELECT. ABSEL CXA1992A/B SELECT (L=CXA1992A). CLVSEL CLV MODE SELECT (H=CLV-N).
  • Page 27 IC, SM5878M Pin No. Pin Name Description MODE = H: Soft mute ON/OFF terminal. (Mute at H). MUTE MODE = L: Attenuator level DOWN/UP terminal. (DOWN at H). DEEM De-emphasis ON/OFF terminal. (De-emphasis ON at H). Oscillator clock output. (16.9344 MHz). DVSS —...

  • Page 28: Ic Block Diagram

    IC BLOCK DIAGRAM IC, BA5915FP 6.65K 6.65K 6.65K 6.65K MUTE T.S.D: Thermal shut-down Resistors are in units of Ω. IC, M5291FP Switch collector Driver Peak currect Switch emitter detection External capacitance Power supply 1.17V for oscillation REF. VOL Ground Comparator input IC, LB1644...

  • Page 29: Test Mode

    TEST MODE 1. How to Activate CD Test Mode 2. How to Cancel CD Test Mode Insert the AC plug while pressing the function CD button. Either one of the following operations will cancel the CD test All FL display tubes will light up, and the test mode will be mode.
  • Page 30 MECHANICAL EXPLODED VIEW 1/1 P.C.B CHAS,MECHA P.C.B HLDR,MECHA P.C.B 3ZG-2 E1 CUSH CD A...
  • Page 31 MECHANICAL PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 84-ZG1-239-210 PULLY,WORM N 21 84-ZG1-207-010 PULLEY,RELAY 2 84-ZG1-267-010 PULLEY,LOAD MO 8 22 84-ZG1-221-010 GEAR,MAIN TT 3 81-ZG1-239-010 S-SCREW,TT 23 84-ZG1-238-010 GEAR,WORM N 4 81-ZG1-291-110 GEAR,TRAY RELAY NO3 24 84-ZG1-224-010 LEVER,TT...
  • Page 32 CD MECHANISM EXPLODED VIEW 1/1 (3ZG-2 E1) P.C.B CD MECHANISM PARTS LIST 1/1 (3ZG-2 E1) REF. NO PART NO. KANRI DESCRIPTION 1 83-ZG2-243-110 CHAS ASSY,SHT 2 83-ZG2-235-010 GEAR,A3 3 83-ZG2-205-210 GEAR,B 4 83-ZG2-236-010 GEAR MOTOR 3 5 83-ZG2-240-010 SHAFT,SLIDE 3 6 87-A90-836-010 PICKUP,KSS-213F 8 83-ZG2-233-010...
  • Page 33 USE MODEL LIST CX-NAK572 CX-NK270 CX-NK290 CX-NK370 CX-NK570 CX-NK765 CX-NK770 CX-NK970 DX-SNKH100...
  • Page 34 REFERENCE NAME LIST ELECTRICAL SECTION MECHANICAL SECTION DESCRIPTION REFERENCE NAME DESCRIPTION REFERENCE NAME ANTENNAS ADHESHIVE SHEET ADHESHIVE CHIP AZIMUTH C-CAP CAP, CHIP BAR-ANT BAR-ANTENNA C-CAP TN CAP, CHIP TANTALUM BATTERY C-COIL COIL, CHIP BATT BATTERY C-DI DIODE, CHIP BEARING C-DIODE DIODE, CHIP BUTTON C-FET...

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