Sony HCD-VZ30AV Service manual

HCD-VZ30AV

SERVICE MANUAL

Ver 1.1 2001. 02

• This set is the Amplifier, CD player, Tape Deck and Tuner section in MHC-VZ30AV.

Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol ; are trade-marks of Dolby Laboratories Licensing Corporation.

CD CD Mechanism Type CDM53F-K2BD37A

Section Base Unit Name BU-K2BD37A

Tape deck Model Name Using Similar Mechanism HCD-ZX30AV

Section Tape Transport Mechanism Type TCM-230AWR12

E Model

Chinese Model

Model Name Using Similar Mechanism NEW

Optical Pick-up Name KSM-213DAP

SPECIFICATIONS

Amplifier section

The following measured at AC 120/220/240 V, 50/60 Hz

Front Speaker:

DIN power output (rated) 95 + 95 watts

Continuous RMS power output (reference)

Center Speaker:

DIN power output (rated) 30 watts

Continuous RMS power output (reference)

Rear Speaker:

DIN power output (rated) 30 + 30 watts

Continuous RMS power output (reference)

Inputs VIDEO (AUDIO) IN: voltage 250 mV, (phono jacks) impedance 47 kilohms MD IN: voltage 450 mV, (phono jacks) impedance 47 kilohms

(8 ohms at 1 kHz, DIN)

120 + 120 watts (8 ohms at 1 kHz, 10% THD)

(8 ohms at 1 kHz, DIN)

40 watts (8 ohms at 1 kHz, 10% THD)

(8 ohms at 1 kHz, DIN)

40 + 40 watts (8 ohms at 1 kHz, 10% THD)

DVD INPUT:

FRONT IN: voltage 450 mV, (phono jacks) impedance 47 kilohms REAR IN: voltage 450 mV, (phono jacks) impedance 47 kilohms CENTER IN: voltage 450 mV, (phono jacks) impedance 47 kilohms WOOFER IN: voltage 450 mV,

(phono jacks) impedance 47 kilohms MIC 1/2 Sensitivity 1 mV, (mini jack) impedance 10 kilohms

Outputs MD OUT: voltage 250 mV (phono jacks) impedance 1 kilohms VIDEO OUT: max. output level (phono jack) 1Vp-p, unbalanced,

S-VIDEO OUT: Y: 1Vp-p, unbalanced, (4-pin/mini-DIN jack) Sync negative,

PHONES: accepts headphones of (stereo mini jack) 8 ohms or more FRONT SPEAKER: accepts impedance of 8 to 16 ohms REAR SPEAKER: accepts impedance of 8 to 16 ohms CENTER SPEAKER: accepts impedance of 8 to 16 ohms SUPER WOOFER: Voltage 1 V, impedance 1 kilohms

Sync negative, load impedance 75 ohms

C: 0.286Vp-p, load impedance 75 ohms

— Continued on next page —

9-929-279-12

2001B1600-1

MINI Hi-Fi COMPONENT SYSTEM

Sony Corporation

Audio Entertainment Group

General Engineering Dept.

VIDEO CD/CD player section

System Compact disc and digital audio

Laser Semiconductor laser

Laser output Max. 44.6

Wavelength 780 — 790 nm Frequency response 2 Hz — 20 kHz (±0.5 dB) Signal-to-noise ratio More than 90 dB Dynamic range More than 90 dB Video color system format

CD OPTICAL DIGITAL OUT (Square optical connector jack, rear panel) Wavelength 660 nm Output Level —18 dBm

system

(λ=780nm) Emission duration: continuous

*This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture.

NTSC, PAL

Tape player section

Recording system 4-track 2-channel stereo Frequency response 40 — 13,000 Hz (±3 dB), (DOLBY NR OFF) using Sony TYPE I cassette

40 — 14,000 Hz (±3 dB), using Sony TYPE II cassette

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range 87.5 — 108.0 MHz (50 kHz step) Antenna FM lead antenna Antenna terminals 75 ohm unbalanced Intermediate frequency 10.7 MHz

AM tuner section

Tuning range Middle Eastern model: 531 — 1,602 kHz

Other models: 531 — 1,602 kHz

Antenna AM loop antenna Antenna terminals External antenna terminal Intermediate frequency 450 kHz

(with the interval set at 9 kHz)

530 — 1,710 kHz (with the interval set at

10 kHz)

General

Power requirements Thai and Chinese models: 220 V AC, 50/60 Hz Other models: 120 V, 220 V or

Power consumption 250 watts

Dimensions (w/h/d) Approx. 250 x 375 x 395 mm

Mass Approx. 13.2 kg

Supplied accessories: AM loop antenna (1)

230 — 240 V AC, 50/60 Hz Adjustable with voltage selector

FM lead antenna (1) Remote Commander (1) Batteries (2)

Video cable (1) Speaker cords (5) Front speaker pads (8)

Design and specifications are subject to change without notice.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

1. GENERAL ·········································································· 5

2. DISASSEMBLY ································································ 8

3. SERVICE MODE ···························································· 16

4. MECHANICAL ADJUSTMENTS ····························· 19

5. ELECTRICAL ADJUSTMENTS ······························· 19

6. DIAGRAMS

6-1. Circuit Boards Location ·············································· 24 6-2. Block Diagrams ··························································· 25 6-3. Schematic Diagram Video CD Section (1/2) ·········· 29 6-4. Schematic Diagram Video CD Section (2/2) ·········· 30 6-5. Printed Wiring Board Video CD Section ················ 31 6-6. Printed Wiring Board BD Board ···························· 32 6-7. Schematic Diagram BD Board ······························· 33 6-8. Printed Wiring Boards Sensor/Motor Section ········ 34 6-9. Schematic Diagram Sensor/Motor Section ············ 35 6-10. Printed Wiring Board Audio Board ························ 36 6-11. Schematic Diagram Audio Board·························· 37 6-12. Printed Wiring Board Leaf SW Board ··················· 38 6-13. Schematic Diagram Leaf SW Board ······················ 38 6-14. Printed Wiring Board Main Board ························· 39 6-15. Schematic Diagram Main Board (1/2) ··················· 40 6-16. Schematic Diagram Main Board (2/2) ··················· 41 6-17. Printed Wiring Board Panel Board ························· 42 6-18. Schematic Diagram Panel Board ···························· 43 6-19. Printed Wiring Board Sub Panel Board ·················· 44 6-20. Schematic Diagram Sub Panel Board ···················· 45 6-21. Waveforms ··································································· 46 6-22. Printed Wiring Board Mic Board ··························· 46 6-23. Schematic Diagram Mic Board ······························ 47 6-24. Printed Wiring Board Front AMP Board················ 48 6-25. Schematic Diagram Front AMP Board ·················· 49 6-26. Printed Wiring Board Surround AMP Board ········· 50 6-27. Schematic Diagram Surround AMP Board ············ 51 6-28. Printed Wiring Boards Trans Board ······················· 52 6-29. Schematic Diagram Trans Board···························· 53 6-30. IC Block Diagrams ······················································ 54 6-31. IC Pin Function Description ········································ 56

MODEL IDENTIFICATION — BACK PANEL —

PARTS No.

4-227-555-0s 4-227-555-1s 4-227-555-2s 4-227-555-3s 4-227-555-4s

• Abbreviation EA : Saudi Arabia model. SP : Singapore model. MY : Malaysia model. TH : Thai model. HK : Hong Kong model. CH : Chinese model.

MODEL

Parts No.

MY, SP

8. EXPLODED VIEWS ................................................... 61

9. ELECTRICAL PARTS LIST ................................... 68

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety checks before releasing the set to the customer.

1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and bridges.

2. Check the interboard wiring to ensure that no wires are "pinched" or contact high-wattage resistors.

3. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement.

4. Look for parts which, through functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.

5. Check the B+ voltage to see it is at the values specified.

6. Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.

Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.

The following caution label is located inside the unit.

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270 ˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

CAUTION

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

LOCATION OF CONTROLS – Front Panel –

SECTION 1

GENERAL

12 3 4 5 6 7 89

tg tf td

ts ta

t; rl rk

rj rh rg rf rd

rs ra r;

el ek ej

q; qa qs qd

qf qg

qh qj

qk ql w;

wa ws

wd wf wg

whwjwkwle;eaesedefeg

1 b button and indicator (TAPE A) 2 B button and indicator (TAPE A) 3 b button and indicator (TAPE B) 4 B button and indicator (TAPE B) 5 x button 6 u CD button and indicator 7 TUNER/BAND button 8 SET UP MODE indicator 9 SOUND indicator q; DSP button qa V-GROOVE button qs MODE SELECT button qd PUSH ENTER button qf M button (TUNER) qg m button (TUNER) qh VOLUME knob qj PRO LOGIC button and indicator qk GROOVE button and indicator ql GROOVE-EX button and indicator w; DVD 5.1 CH button and indicator

wa DISC 1 button and indicator ws DISC 2 button and indicator wd DISC 3 button and indicator wf DISC 4 button and indicator wg DISC 5 button and indicator wh Z indicator (DISC 5) wj Z indicator (DISC 4) wk Z indicator (DISC 3) wl Z indicator (DISC 2) e; Z indicator (DISC 1) ea DISC 5 button es DISC 4 button ed DISC 3 button ef DISC 2 button eg DISC 1 button eh MIC 2 jack ej MIC 1 jack ek MIC VOL land el ECHO VOL land r; Z B button

ra Z A button rs REC PAUSE/START button and indicator rd CD SYNC button rf HI-DUB button rg PHONE jack rh PREVIOUS button rj NEXT button rk RETURN button rl ENTER button t; > button ta . button ts FUNCTION button td DISPLAY button tf TIMER SELECT indicator tg ?/1 button and indicator

– Rear Panel –

3 4

9q;qa

Photo : Malaysia model

1 AM ANTENNA terminals 2 FM ANTENNA (75 Ω) terminals 3 VIDEO IN jacks 4 MD IN jacks 5 MD OUT jacks 6 DVD IN jacks 7 WOOFER OUT jacks 8 CD DIGITAL OUT connector 9 FRONT SPEAKER terminals q; REAR SPEAKER terminals qa CENTER SPEAKER terminals qs VOLTAGE SELECTOR switch

This section is extracted from instruction manual.

Step 3: Setting the time

You must set the time before using the timer functions.

The clock is on a 12-hour system.

?/1

(Power)

Move the multi stick toward v or V repeatedly to set the hour.

Move the multi stick toward B.

The minute indication flashes.

12,3,4,5,6

Move the multi stick toward v or V repeatedly to set the minute.

Press PUSH ENTER.

To cancel the menu operation

Press MODE SELECT.

Tips

• Refer to the illustration to use the multi stick. Place your finger on the center of the multi stick and move in the direction you want (up/down or left/ right shown v/V or b/B in this manual).

Up (v)

Press MODE SELECT when the system is turned off.

“Clock Set ?” appears.

Press PUSH ENTER.

The hour indication flashes.

PUSH

Left (b)

• If you’ve made a mistake, start over from step 1.

ENTER

Down (V)

Right (B)

SECTION 2

DISASSEMBLY

Note: Follow the disassembly procedure in the numerical order given.

2-1. UPPER CASE

4 Upper case

1 Four screws

(CASE3 TP2)

3 Five screws (BVTT 3 × 8)

2-2. FRONT PANEL SECTION

6 Connector

1 Connector

7 Screw

(P 3 × 8)

2 Wire (flat type) (15 core)

2 Four screws (CASE3 TP2)

5 Connector

4 Wire (flat type)

(17 core)

3 Wire (flat type) (11 core)

8 Three screws

(BVTT 3 × 6)

9 front panel

section

2-3. BACK PANEL SECTION

4 Remove the back panel to direction of the arrow.

1 Wire (flat type) (13 core)

2-4. MAIN BOARD

3 Nineteen screw (BVTP 3 × 8)

2 Connector

2 One connector

3 Wire (flat type) (17 core)

4 Wire (flat type) (13 core)

1 One connector

6 Remove the MAI

board to direction of the arrow.

5 Two screws (BVTP 3 × 8)

2-5. POWER TRANSFORMER (T902)

)

5 Four screws (BVTT 4 × 6)

1 Connector

2 Connector

3 Connector

4 Power cord

6 Power transforme (T902

2-6. FRONT AMP BOARD

6 Two screws (BVTP 3 × 8)

8 Front amp board

7 Two screws

(BVTP 3 × 16)

9 Two screws (BVTP 3 × 8)

3 Two screws (BVTP 3 × 16)

0 Heat sink

1 Connector

2 Two screws

(BVTP 3 × 8)

5 Surrund amp board

4 Bracket

2-7. CD MECHANISM DECK (CDM53F-K2BD37A)

)

5 Remove the CD mechanism

4 Four screws

(BVTP 3 × 8)

2 Two screws (BVTP 3 × 8)

deck section.

3 Chassis

2-8. TAPE MECHANISM DECK (TCM-230AWR12)

3 Remove the tape mechanism deck section.

1 Three screws (BVTP 3 × 8)

1 Two screws (BVTP 3 × 8)

2 Two screws (BVTP 3 × 8

2-9. CD BASE UNIT (BU-K2BD37A)

5 CD base unit (BU-K2BD38)

4 Compression spring (black)

3 Two screws (PTPWH M2.6)

2 Compression spring (sliver)

1 Two screws (PTPWH M2.6)

2-10. FITTING BASE (GUIDE) ASSY, BRACKET (CHASSIS) AND MAGNET ASSY

8 Four screws (BVTP M2.6)

6 Bracket

2 Four screws

(BVTP M2.6)

(chassis)

4 Screw (BVTP M2.6)

7 Connector (CN710)

9 Magnet ass

5 Screw

(BVTP M2.6)

3 Fitting base (guide) assy

1 Two connectors (CN709, 715)

5 Stocker section

4 Two step screws

3 Gear (eject)

2 Chassis (mold B) section

9 Compression

spring

7 Slider (selection)

8 Washer

6 Two screws

(PTPWH M2.6)

1 Three screws (BVTP M2.6)

Pully (LD)

Note: Rotating the pully (LD), shift the slider (selection) to the left.

2-11. TRAY (SUB)

Rotating the pulley (LD), shift the slider (selection) in the arrow A direction.

Rotating the pulley (mode) in the arrow direction, adjust the tray (sub) to be removed.

Rotating the pulley (LD), shift the slider (selection) in the arrow B direction.

Rotating the pulley (mode) in the arrow direction, remove the tray (sub) to be removed.

Pully (LD)

Slider (selection)

Stocker section

Tray (sub)

Pully (mode)

2-12. CHASSIS (MOLD B) SECTION, STOCKER SECTION AND SLIDER (SELECTION)

Note: In mounting the parts, refer to page 14 and 15.

2-13. GEARS INSTALLATION

3 Gear (gear B)

Portion A

Adjust the gear (gear B) with the portion A as shown.

1 Slide the slider (u/d) fully in the arrow direction.

Gear (U/D slider)

Slider (U/D) gear

Gear (gear A)

Gear (gear B)

Linearly

Adjust the gear so that it meshes with the bottom tooth of slider (U/D) gear, as shown.

2-14. SLIDER (SELECTION) INSTALLATION

Gear (chuking)

Rotary encoder

Align with the slot of rotary encoder.

Two screws

(PTPWH M2.6)

Washer

Compression spring

Insert the slider (selection)

into the portion A.

Adjust so as to be aligned with gear B linearly, as shown.

Portion A

Rotary encoder

Align marking

Convex portion of

slider (selection)

Gear (chuking)

Insert a convex portion into a groove of gear (chuking).

2-15. STOCKER SECTION INSTALLATION

Stocker section

Portion A of tray (sub)

Hook the portion A of tray (sub) to the slider (selection).

Two step screws

2-16. CHASSIS (MOLD B) SECTION INSTALLATION

3 Three screws (BVTP M2.6)

Portion A of tray (sub)

Sticking of slider (selection)

Two step screws

Insert the gear (eject0 under the gear (LD deceleration).

Gear (LD deceleration)

Portion A

Portion B of slider (selection)

Insert the portion A of chassis (mold B) section into the portion B of slider (selection).

SECTION 3

SERVICE MODE

[MC Cold Reset]

• The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer.

Procedure:

1. Press three buttons x , DISPLAY , and DISC 5 simultaneously.

2. The fluorescent indicator tube displays “COLD RESET” and

the set is reset.

[CD Ship Mode]

• This mode moves the pickup to the position durable to vibration. Use this mode when returning the set to the customer after repair.

Procedure:

1. Press ?/1 button to turn the set ON.

2. Press V-GROOVE button, and ?/1 button simultaneously.

3. After the "STANDBY" display blinks six times, a message

“LOCK” is displayed on the fluorescent indicator tube, and the CD ship mode is set.

[MC Hot Reset]

• This mode resets the set with the preset data kept stored in the memory. The hot reset mode functions same as if the power cord is plugged in and out.

Procedure:

1. Press three buttons x , DISPLAY , and DISC 1 simultaneously.

2. The fluorescent indicator tube becomes blank instantaneously,

and the set is reset.

[CD Service Mode]

• This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the pickup.

Procedure:

1. Press ?/1 button to turn the set ON.

2. Select the function “CD”.

3. Press three buttons x , DISPLAY , and Z 3 simultaneously.

4. The CD service mode is selected.

5. With the CD in stop status, turn the shuttle knob clockwise to

move the pickup to outside track, or turn the shuttle knob counter-clockwise to inside track.

6. To exit from this mode, perform as follows:

1) Move the pickup to the most inside track.

2) Press three buttons in the same manner as step 2.

Note: • Always move the pickup to most inside track when exiting from

this mode. Otherwise, a disc will not be unloaded.

• Do not run the sled motor excessively, otherwise the gear can be chipped.

[VACS ON/OFF Mode]

• This mode is used to switch ON and OFF the VACS (Variable Attenuation Control System).

[Change-over of AM Tuner Step between 9 kHz and 10 kHz]

• A step of AM channels can be changed over between 9 kHz and 10 kHz.

Procedure:

1. Press ?/1 button to turn the set ON.

2. Select the function “TUNER”, and press TUNER/BAND

button to select the BAND “AM”.

3. Press ?/1 button to turn the set OFF.

4. Press MODE SELECT and ?/1 buttons simultaneously, and

the display of fluorescent indicator tube changes to “AM 9 k STEP” or “AM 10 k STEP”, and thus the channel step is changed over.

[GC Test Mode]

• This mode is used to check the software version, FL tube, LED, keyboard and VACS.

Procedure:

1. Press three buttons x , ENTER , and DISC 2 simultaneously.

2. LEDs and fluorescent indicator tube are all turned on.

3. When you want to enter the software version display mode,

press DISC 1 . The model number and destination are displayed.

4. Each time DISC 1 is pressed, the display changes starting

from MC version, GC version, VC version, CD version, CM version, ST version, TC version, TA version, TM version and BR version in this order, and returns to the model number and destination display.

5. When DISC 3 is pressed while the version numbers are being

displayed except model number and destination, year, month and day of the software creation appear. When DISC 3 is pressed again, the display returns to the software version display. When DISC 1 is pressed while year, month and day of the software creation are being displayed, the year, month and day of creation of the software versions are displayed in the same order of version display.

6. Press DISC 2 button, and the key check mode is activated.

7. In the key check mode, the fluorescent indicator tube displays

“KEY0 VOL0”. Each time a button is pressed, “KEY” value increases. However, once a button is pressed, it is no longer taken into account. “VOL” value increases like 1, 2, 3 ... if rotating VOLUME knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “–” direction.

8. Flopping the PUSH ENTRY button to the up position shows

the indication “ R ”, the down position shows “ r ”, the left position shows “ T ” and the right position “ t ”.

9. Also when DISC 3 is pressed after lighting of all LEDs and FL

tubes, value of VACS appears.

10. To exit from this mode, press three buttons in the same manner

as step 1, or disconnect the power cord.

Procedure:

Press the ENTER and x buttons simultaneously. The message “VACS OFF” or “VACS ON” appears.

[MC Test Mode]

• This mode is used to check operations of the respective sections of Amplifier, Tuner, CD and Tape.

Procedure:

1. Press the three buttons of x , DISPLAY and DISC 3

simultaneously.

2. A message “TEST MODE” appears on the FL display tube.

3. When PUSH ENTRY (CURSOR UP) button is pressed, GEQ increases to its maximum and a message “GEQ MAX” appears.

4. When PUSH ENTRY (CURSOR DOWN) button is pressed, GEQ decreases to its minimum and a message “GEQ MIN” appears.

5. When PUSH ENTRY (CURSOR LEFT) or PUSH ENTRY (CURSOR RIGHT) button is pressed, GEQ is set to flat and a message “GEQ FLAT” appears.

6. When the VOLUME control knob is turned clockwise even slightly, the sound volume increases to its maximum and a message “VOLUME MAX” appears for two seconds, then the display returns to the original display.

7. When the VOLUME control knob is turned counter-clockwise even slightly, the sound volume decreases to its minimum and a message “VOLUME MIN” appears for two seconds, then the display returns to the original display.

8. In the test mode, the default-preset channel is called even when the TUNER is selected and an attempt is made to call the preset channel that has been stored in memory, by operating the Shuttle knob. (It means that the memory is cleared.)

9. When CD is selected. Press the MODE SELECT button and press the ENTER button in the “Setup Mode”. Move the PUSH ENTRY to the right or left and press the ENTER button in the “CD Edit Start” mode. The disc that is being chucked at this moment becomes the default setting. It means that the default disc only is accessed when any other discs are selected even though the display indication changes accordingly. At the same time, the DISC 1 button to DISC 5 button cannot be accepted. (It means that the tray motor and the turntable motor are disabled of their operation.)

10. When a tape is inserted in Deck B and recording is started, the input source function selects VIDEO automatically.

11. When x button is pressed to stop recording, the Tape (Deck) B is selected and tape is rewound using the m button, tape is rewound, tape is stops at around the record-starting position and playback of the recorded portion of the tape is started. If PAUSE is inserted even once during recording, tape is rewound to the position around the PAUSE position and is played back.

12. When the HI-DUB Button is press during playback of Deck B, either normal speed or high speed can be selected by this button.

13. Select the desired loop as follows. Press the MODE SELECT button and press the ENTER button in the “Setup Mode”. Move the PUSH ENTRY button to the right or left and press the ENTER button in the “Direction setup”. Move the PUSH ENTRY button to the right or left and press ENTER at “Cycle”. Insert a test tape AMS-110A or AMS-RO to Deck A.

14. Press the CD SYNC button to enter the AMS test mode.

15. After a tape is rewound first, the FF AMS is checked, and the mechanism is shut off after detecting the AMS signal twice.

16. Then the REW AMS is checked and the mechanism is shut off after detecting the AMS signal twice.

17. When the check is complete, a message of either OK or NG appears.

18. When you want to exit this mode, press the ?/1 button twice. The cold reset is enforced at the same time.

[Aging Mode]

During the aging mode, both the CD player and tape deck are executed together.

• If an error occurs:

Aging stops, and the error state is displayed on the fluorescent display tube.

• If no error occurs:

Aging is repeated.

Procedure:

1. Press the ?/1 button to turn the set ON.

2. Load 10 minute tapes with unbent rec-proof tabs in decks A and B.

3. Set CD on the DISC 1 table.

4. Set the CD mode REPEAT to OFF and PLAY MODE to ALL DISCS. (Press the MODE SELECT button and move the PUSH ENTRY button to set these modes.)

5. Press the FUNCTION button to switch the function to “CD”.

6. Press the three buttons x , DISPLAY , and DISC 4 button simultaneously.

7. Aging starts.

8. To end aging, press the ?/1 button to turn the set OFF.

Aging Sequence:

Aging is performed in the following sequence.

• Tape Deck

1. The tape in deck A is rewound. “TAPE A AG-1” is displayed.

2. The FWD side of deck A is played for two minutes. “TAPE A AG-2” is displayed.

3. The tape in deck A is fast forwarded. “TAPE A AG-3” is displayed. Fast forward is carried out for 20 seconds or to the tape end.

4. The RVS side of deck A is played for two minutes. “TAPE A AG-4” is displayed.

5. The tape in deck A is rewound. “TAPE A AG-5” is displayed.

6. The FWD side of deck B is played for two minutes. “TAPE B AG-2” is displayed.

7. The tape in deck B is fast forwarded. “TAPE B AG-3” is displayed. Fast forward is carried out for 20 seconds or to the tape end.

8. The RVS side of deck B is played for two minutes. “TAPE B AG-4” is displayed.

9. The tape in deck B is rewound. “TAPE B AG-5” is displayed.

10. Repeated from step 2.

• CD

1. DISC 1 is chucked.

2. The TOC is read.

3. The first track is played for 3 seconds.

4. The last track is played for 3 seconds.

5. DISC 1 tray open and close.

6. Repeated from step 1.

• Display when ended abnormally

When the tape deck is abnormal:

The state when ended abnormally is displayed. The contents of display are the same as that during aging.

When the CD player is abnormal:

A message indicating that errors such as “CD MEC ERR” have occurred. Check the error contents in the following error history display mode.

[Error History Display Mode]

Mode which enables the history of error occurring in the CD player to be checked. Execute this mode after ending the aging mode.

Procedure:

1. Press the ?/1 button to turn the set ON.

2. Press the three buttons x , DISPLAY , and Z1

simultaneously.

3. Select the desired display mode from the following modes by moving the PUSH ENTRY button to the right and left.

• Number of mechanism errors display mode

• Mechanism error display mode

• Number of times of NO DISC display mode

• NO DISC display mode

4. Press the ?/1 button to end and turn the set OFF.

5. To erase the error history, perform COLD reset. (Press the three buttons x , DISPLAY , and DISC 5 simultaneously.

[VIDEO CD Color-bars Mode]

On this mode, the data of the color-bars signal as a picture signal and the 1 kHz sine wave signal as a sound signal are output by the mechanism controller (IC502) for the video CD signal check. When measurement of the voltage and waveform on the VIDEO board, perform it in this mode. For reference, the color-bars signal can be observed at J302 (VIDEO OUT) using an oscilloscope.

Procedure:

1. Short the both ends of the land of SL503 of the VIDEO board.

2. Turn the power on. Press the FUNCTION button to select CD.

3. The color-bars appears when the CD is in stop status, and it disappears when the CD goes in play status.

4. After measuring, remove the lead wire connected.VIDEO board (SIDE B)

VIDEO board (SIDE A)

• Viewing the mechanical error history display (Switch the history by moving the PUSH ENTRY up and down)

Display CDM E@@D##$%!

@@ : Error number. 00 is the newest.

## : Mechanism error after initialization is complete.

$ : 1 or 2 : Mechanism error during the tray loading in between the

stocker position and the rear position behind the stocker position.

% : 2 : Mechanism error during up and down movement of stocker.

! : 2 : Mechanism error of clamper and that during mode switching.

• Viewing the NO DISC ERROR history display (Switch the history by moving the PUSH ENTRY up and down)

Display No E@@D##$$%

@@ : Error number. 00 is the newest

## : Error contents

01 : Focus error 02 : GFS error 03 : Setup error

CN501

J301

SL503

SL502

SL501

CHECK LED

J302

CN503

CN502

$$ : Retries

00 : NO DISC is determined without attempting chucking

retry

02 : NO DISC is determined after chucking retry.

% : State when determined as NO DISC 1 : When stopped 2 : At setup 3 : At TOC READ 4 : When accessing 5 : When playing 6 : When pausing 7 : When manual searching (during play) 8 : When manual searching (during pausing)

SECTION 4

MECHANICAL ADJUSTMENTS

SECTION 5

ELECTRICAL ADJUSTMENTS

Precaution

1. Clean the following parts with a denatured alcoholmoistened swab:

record/playback heads pinch rollers erase head rubber belts capstan idlers

2. Demagnetize the record/playback head with a head demagnetizer.

3. Do not use a magnetized screwdriver for the adjustments.

4. After the adjustments, apply suitable locking compound to the parts adjusted.

5. The adjustments should be performed with the rated power supply voltage unless otherwise noted.

Torque Measurement

Mode Torque meter

Meter reading

3.06 N • m to 6.96 N • m

FWD

CQ-102C

31 to 71 g • cm

(0.43 – 0.98 oz • inch)

FWD back tension

CQ-102C

0.19 N • m to 0.58 N • m 2 to 6 g • cm

(0.02 – 0.08 oz • inch)

3.06 N • m to 6.96 N • m

REV

CQ-102RC

31 to 71 g • cm

(0.43 – 0.98 oz • inch)

REV back tension

CQ-102RC

0.19 N • m to 0.58 N • m 2 to 6 g • cm

(0.02 – 0.08 oz • inch)

6.96 N • m to 14.02 N • m

FF/REW

CQ-201B

71 to 143 g • cm

(0.98 – 1.99 oz • inch)

9.80 N • m

FWD tension

CQ-403A

100 g or more

(3.53 oz or more)

9.80 N • m

REV tension

CQ-403R

100 g or more

(3.53 oz or more)

DECK SECTION 0 dB=0.775V

1. Demagnetize the record/playback head with a head demagnetizer.

2. Do not use a magnetized screwdriver for the adjustments.

3. After the adjustments, apply suitable locking compound to the parts adjusted.

4. The adjustments should be performed with the rated power supply voltage unless otherwise noted.

5. The adjustments should be performed in the order given in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.)

6. The adjustments should be performed for both L-CH and R-CH.

7. Switches and controls should be set as follows unless otherwise specified.

Tape Signal Used for

P-4-A100

WS-48B

P-4-L300

Record/Playback Head Azimuth Adjustment (Deck A, Deck B)

Note: Perform this adjustments for both decks.

Procedure:

1. Mode : Playback

Test tape P-4-A100 (10 kHz, –10 dB)

10 kHz, –10 dB

3 kHz, 0 dB

315 Hz, 0 dB

MAIN board CN301 Pin 3 (R-CH) Pin 1 (L-CH)

Set

MAIN board CN301 Pin 2 (GND)

Azimuth Adjustment

Tape Speed Adjustment

Level Adjustment

Level mete

+ –

2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw

L-CH peak

R-CH

Screw position

peak

so that outputs match within 1 dB of peak.

Output level

Within 1 dB

L-CH peak

R-CH peak

Within 1d

Screw position

3. Mode: Playback Tape Speed Adjustment (Deck A, Deck B)

Test tape P-4-A100 (10 kHz, –10 dB)

L-CH

MAIN board CN301 set

R-CH

Waveform of oscilloscope

In phase 45 ° 90° 135 ° 180°

Pin 1

Pin 2

Pin 3

Good

Oscilloscop

Wrong

4. After the adjustments, apply suitable locking compound to the parts adjusted.

Adjustment Location: Playback Head (Deck A)

Record/Playback/Erase Head (Deck B)

Note: Set the test mode using the following method and begin tape

speed adjustment. In the test mode, the speed will switch to double speed or normal speed each time the HI-DUB button is pressed.

Procedure:

With the ?/1 button ON, press the x button, DISPLAY button, and DISC 3 button simultaneously. (The “VOLUME” on the fluorescent display tube will blink while in the test mode.) To exit the test mode, press the ?/1 button.

1. Insert the WS-48B into deck B.

2. Press the H button of deck B.

3. Press the HI-DUB button and play the tape at double speed.

4. Adjust RV1001 of the LEAF SW board so that the reading of the frequency counter becomes 6000 ± 180 Hz.

5. Press the HI-DUB button and play the tape at normal speed.

6. Adjust RV1002 of the LEAF SW board so that the reading of the frequency counter becomes 3000 ± 90 Hz.

Adjustment Location: LEAF SW board

Sample Value of Wow and flutter

W.RMS (JIS) less than 0.3% (test tape: WS-48B)

Playback Level Adjustment (Deck A, Deck B)

Procedure:

Mode: Playback

Test tape P-4-L300 (315 Hz, 0 dB)

Set

FowardReverse

MAIN board CN301 (Pin 1 : L-CH)

(Pin 3 : R-CH)

Level meter

–

Deck A is RV311 (L-CH) and RV411 (R-CH), deck B is RV301 (L-CH) and RV401 (R-CH) so that adjustment within the following adjustment level.

Adjustment level:

CN301 playback level: 301.5 to 338.3 mV (–8.2 to –7.2 dB) level difference between the channels: within ± 0.5 dB Adjustment Location: AUDIO board

Adjustment Location [LEAF SW BOARD]

RV1001(High Speed) RV1002(Normal Speed)

RV1002 RV1001

Record Bias Adjustment (Deck B)

)

Record Level Adjustment (Deck B)

Procedure:

INTRODUCTION

When set to the test mode performed in Tape Speed

Adjustment,

when the tape is rewound after recording, the “REC memory mode” which rewinds only the recorded portion and playback is set. This “REC memory mode” is convenient for performing this adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO 1. (After recording, press the m button without stopping will return to the position where recording was started.)

1. Press FUNCTION button to select VIDEO. (This step is not necessary if the above test mode has already been set.)

2. Insert a tape into deck B, press the REC PAUSE/START button, and then press the H button to start recording.

3. Mode: Record

4. Mode: Playback

VIDEO (AUDIO) IN

1) 315 Hz

2) 10 kHz

AF OSC

Attenuator

} 50 mV (–23.8 dB)

600 Ω

Blank tape CS-123

Set

Procedure:

INTRODUCTION

When set to the test mode performed in Tape Speed Adjustment when the tape is rewound after recording, the “REC memory mode” which rewinds only the recorded portion and playback is set. This “REC memory mode” is convenient for performing this adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO 1. (After recording, press the m button without stopping will return to the position where recording was started.)

1. Press FUNCTION button to select VIDEO 1. (This step is not necessary if the above test mode has already been set.)

2. Insert a tape into deck B, press the REC PAUSE/START button, and then press the H button to start recording.

3. Mode: Record

4. Mode: Playback

VIDEO (AUDIO) IN 315Hz 50 mV (–23.8 dB)

AF OSC

600 Ω

Attenuator

Set

Blank tape CS-123

5. Confirm playback the signal recorded in step 2 become adjustment level as follows.

Recorded portion

Set

MAIN board CN301C (Pin 1 : L-CH)

(Pin 3 : R-CH

Level meter

–

If these levels do not adjustment level, adjust the RV341 (LCH) and RV441 (R-CH) on the AUDIO board to repeat steps 3 and 4.

Adjustment level: The playback output of 10 kHz level difference

against 315 Hz reference should be ± 1.0 dB.

Adjustment Location: AUDIO board

Adjustment Location:

[AUDIO BOARD] (Conductor Side)

RV341(Lch),RV441(Rch) Record Bias

RV311(Lch),RV411(Rch) Playback Level (Deck A)

5. Confirm playback the signal recorded in step 2 become adjustment level as follows.

Recorded portion

Set

MAIN board CN301C (Pin 1 : L-CH)

(Pin 3 : R-CH

Level meter

–

If these levels do not adjustment level, adjust the RV301 (LCH) and RV351 (R-CH) on the MAIN board to repeat steps 3 and 4.

Adjustment level:

CN403 playback level: 47.2 to 53.0 mV (–24.3 to –23.3 dB)

Adjustment Location: MAIN board

[MAIN BOARD] (Conductor Side)

CN301

IC301

RV301 Record level (L ch)

RV301 RV401

RV441 RV341

RV301(Lch),RV401(Rch) Playback Level (Deck B)

RV311

RV411

RV351 Record level (R ch)

CD SECTION

TP(TEO) TP(VC)

BD board

Oscilloscope

)

Note :

1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given.

2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.

3. Use an oscilloscope with more than 10MΩ impedance.

4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.

Note : Clear RF signal waveform means that the shape “ ◊ ” can be

clearly distinguished at the center of the waveform.

RF signal waveform

VOLT/DIV : 200mV TIME/DIV : 500ns

Level : 1.45 ± 0.3Vp-p

S-Curve Check

Oscilloscope

BD board

TP(FEO) TP(VC)

Procedure :

1. Connect oscilloscope to TP (FEO).

2. Connect between TP (FEI) and TP (VC) by lead wire.

3. Connect between TP (AGCCON) and TP (GND) by lead wire.

4. Turn ?/1 button on.

5. Load a disc (YEDS-18) and actuate the focus search. (In consequence of open and close the disc tray, actuate the focus search)

6. Confirm that the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 4 ±1 Vp-p.

S-curve waveform

Symmetry

Wthin 4 ±1Vp-p

E-F Balance (1 Track jump) Check

Procedure :

1. Connect oscilloscope to TP (TEO) and TP (VC).

2. Turned ?/1 button on.

3. Load a disc (YEDS-18) and playback the number five track.

4. Press the X button. (Becomes the 1 track jump mode.)

5. Confirm that the level B and A (DC voltage) on the oscilloscope waveform.

1 track jump waveform

0 V

Level=1.3 ±0.6 Vp-p

Specified level: —— × 100 = less than – 22 %

A B

Symmetry

Center of waveform

A (DC voltage

6. After check, remove the lead wire connected in step 1.

7. After check, remove the lead wire connected in step 2 and 3. Note : • Try to measure several times to make sure than the ratio

of A : B or B : A is more than 10 : 7.

• Take sweep time as long as possible and light up the brightness to obtain best waveform.

RF Level Check

Oscilloscop

BD board

TP(RF) TP(VC)

Procedure :

1. Connect oscilloscope to TP (RF).

2. Connect between TP (AGCCON) and TP (GND) by lead wire.

3. Turned ?/1 button on.

4. Load a disc (YEDS-18) and playback.

5. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not.

6. After check, remove the lead wire connected in step 2.

Adjustment Location:

[BD BOARD] (Conductor Side)

TP (RF)

TP (VC)

TP (AGCCON)

TP (FE0)

TP (GND)

IC103

TP (TEO)

IC101

SECTION 6

DIAGRAMS

VIDEO SECTION

Frequency Adjustment

Connection:

VIDEO board

(27 MHz)

Procedure:

1. Connect the frequency counter to check point of the VIDEO board.

2. Turned ?/1 button switch on.

3. Press the FUNCTION button to select the CD.

4. Adjust CT503 on the VIDEO board so that the frequency counter reading 27.0 MHz ± 80 Hz at stop status.

Adjustment Location:

[VIDEO BOARD] (SIDE A)

J301

frequency counte

J302

NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS (In addition to this, the necessary note is printed in each block)

Note on Printed Wiring Board:

• X : parts extracted from the component side.

•

• b : Pattern from the side which enables seeing.

Caution: Pattern face side: Parts on the pattern face side seen from (Side B) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Side A) the parts face are indicated.

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. pF: µµF

• All resistors are in Ω and 1/

•

• 2 : nonflammable resistor.

• 5 : fusible resistor.

• C : panel designation.

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

: internal component.

50 WV or less are not indicated except for electrolytics and tantalums.

specified.

: internal component.

W or less unless otherwise

CN501

SL503

SL502

SL501

CHECK LED

CN502

(27MHz)

IC507

(GND)

CT503 VIDEO Frequency Adjustment

CN503

• U : B+ Line.

• V : B– Line.

• H : adjustment for repair.

• Voltages are taken with a VOM (Input impedance 10 MΩ).

Voltage variations may be noted due to normal production tolerances.

• Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F : TUNER (FM/AM) E : PLAYBACK (DECK A) d : PLAYBACK (DECK B) G : RECORD J : CD PLAY (ANALOG OUT) c : CD PLAY (DIGITAL OUT) N : MIC INPUT

• Abbreviation EA : Saudi Arabia model. SP : Singapore model. MY : Malaysia model. TH : Thai model. HK : Hong Kong model. CH : Chinese model.

6-1. CIRCUIT BOARDS LOCATION

TRANS board

HP board

SUB PANEL board

MIC board

CD SW board

PANEL board

TUNER unit

SURR AMP board

FRONT AMP board

MAIN board

SENSOR 2 board

SENSOR board

LEAF SW board

CLAMP MOTOR board

AUDIO board

BD board

VIDEO board

IN SW board

INT/COUNT SW board

CONNECTOR board

LOAD MOTOR board

OUT SW board

HCD-VZ30AV

6-2. BLOCK DIAGRAMS

TUNER/CD/DECK SECTION

• R-CH is omitted

• Signal Path

TUNER UNIT

FM 75Ω

ANTENNA

OPTICAL PICK-UP

BLOCK

(KSM-213DAP)

FOCUS

COIL

TRACKING

COIL

GND

F+

F-

T+

T-

+5V

DRIVE

M102

SLED

MOTOR

M101

SPINDLE

MOTOR

Q101

RF AMP

IC103

IC102

MOTOR/COIL DRIVE

VO1(+)

VO1(-)

VO2(+)

VO2(-)

VO4(+)

VO4(-)

VO3(+)

VO3(-)

: FM

: CD

: DIGITAL OUT

: PB (DECK A)

: PB (DECK B)

: REC (DECK B)

ST-L

ST-R

ST DOUT

ST DIN

ST CLK

STCE

TUNED

STEREO

MUTE

RFO

RFI

LD ON

HOLD SW

OP1(+)

OP1(-)

OP2(+)

OP2(-)

OP4(+)

OP4(-)

OP3(-)

STBY1

STBY2

DECK-A

HP101

HEAD

DECK-B

HRPE101

REC/PB

HEAD

ERASE

HEAD

ST-L

R-CH

TUNED

STEREO

ST MUTE

14FE

13TE

MAIN

SECTION

(Page 26)

DIGITAL SIGNAL PROC.

DIGITAL SERVO

D/A CONV.

IC101

D OUT

PCMD

RFAC

RFDC

FFDR

FRDR

TFDR

TRDR

SFDR

SRDR

MDP

BCLK

DATA

CLOK

XLAT

MUTE

SQSO

SQCK

SENS

SCLK

SCOR

XTSL

XRST

IC551

OPTICAL

CD MECHA CONT

DSP DATA

DSP CLK

DSP LATCH

DSP MUTE

SUBQ DATA

SUBQ CLK

SENSE

SENSE CLK

SCOR

CTRL1

LDON

LPH

DIGITAL

OUT

IC502(1/2)

LEVEL SHIFT

S101

LIMIT

IN SW

IC501

IC104

A+5V

65LRCK

14C2PO

71XTAI

26SSTP

DIGITAL OUT

IIC DATA

IIC CLK

XRESET

CD DATA

CD BCK

CD LRCK

C2PO

384FS

IIC DATA

IIC CLK

DEVICE RST

R-CH

VIDEO

SECTION

(Page 28)

VIDEO

SECTION

(Page 28)

DISPLAY

SECTION

(Page 27)

VIDEO

SECTION

(Page 28)

PB EQ

AMP

IC611

PB EQ

AMP

IC601

RV341

REC

BIAS

S701

(MID OUT)

S702 (LID)

S708

(OUT)

S703

(MID IN)

S704

(IN)

S705

(INIT)

S706

(COUNT)

T621

L331,C331

BIAS TRAP

TUNED

STEREO

ST MUTE

RV311

RV301

BIAS

OSC

Q621,622

100

PB(L)

LEVEL

PB(L)

LEVEL

REC/PB SWITCH

IC602

+12V

Q623

SYSTEM CONTROL

IC401(1/3)

TC RELAY

ST DOUT

ST DIN

ST CLK

REC MUTE

ST CE

NR ON/OFF

R/PB PAS

TUNED

TC MUTE

STEREO

ST MUTE

IIC DATA

IIC CLK

XRST

MID OUT SW

LID SW

OUT SW

MID IN SW

IN SW

INIT SW

CNT SW

AMS IN

A PLAY

B PLAY

A HALF

B HALF

LOD ENG

LOD POS

A SHUT

B SHUT

A TRIG

B TRIG

CAP M H/L 67

CAP M CONT

CLP POS

CLP ENG

D SENS

ENCODE 0

ENCODE 1

R CH

PB A/B

EQ H/N

ALC

BIAS

REC

B NORM/CROM/METAL

LM ON/OFF

A120/70

MS OUT

Q395

Q393,394

A TRIG DRIVE

Q391,392

B TRIG DRIVE

RV1002

NORM S

RV1001 HIGH S

Q1001

MOTOR

CONT

DECK A/B SELECT

PB/REC EQ AMP

REC

NORM

IC702

83ENCODE 2

MOTOR

DRIVE

IC701

MOTOR

DRIVE

LEVEL SHIFT

Q701

S707

ROTARY ENCODER

DISC TRAY

ADDRESS DET

CROM

D704 DISC

BIAS

M702

MOTOR

ELEVATOR

UP/DOWN

MOTOR

Q703

DISC

SENSOR

M701

120

IC301

RV301

REC(L) LEVEL

REC

DOLBY

PB A/B

NORM/HIGH

ALC ON/OFF

DOL

PAS

BIAS ON/OFF

RM ON/OFF

NR ON/OFF

REC /PB/PASS

Q396,397

CAP MOTOR

SPEED CONT

+5V

TC REC-L

IC1001

A REEL

DET

IC1002

B REEL

DET

TC PB-L

+5V

A 120/70

B 120/70

A TRG M+

B TRG M+

M901

CAPSTAN

MOTOR

S1004

S1008

S1001

A PLAY

S1002

B PLAY

S1003

A HALF

S1006

B HALF

S1005 REC A

S1009 REC B

MAIN

SECTION

(Page 26)

MAIN

SECTION

(Page 26)

2525

HCD-VZ30AV

MAIN SECTION

VIDEO 1 IN

DVD

INPUT

(AUDIO)

MD IN

MD OUT

TUNER

SECTION

(Page 25)

SECTION

(Page 25)

SECTION

(Page 26)

VIDEO

SECTION

(Page 28)

FRONT

REAR

CENTER

WOOFER

R CH

MUTE Q821

INPUT SELECT/

GRAPHIC EQ CONT/

ELECTRICAL VOLUME

ST-L

TC REC-L

TC PB-L

CD-L

J101

DOLBY

SURROUND PROCESSOR

IC201

DATA

CLK

LAT

VR SW IN

LT IN

RT IN

SL IN

C IN

SW IN

DATA

SCK

REQ

SL OUT

C OUT

SW OUT

J703

DATA

CLOCK

LATCH

IC204

IC203

IC101

INA2

RECA2

INB2

INC2

INE2

IND2

RECB2

INF2

KEYIN1

KEYIN2

DATA

CLOCK

LATCH

OUT2

BB A2

BB B2

L+R

64MIC IN

Q101

MUTE CONT

Q181

MUTE Q102

MUTE

Q961-963

POWER AMP

IC801

PROTECT

Q893-897

AC DET

+VL

THP091

OVER HEAT

DETECT

Q1091,1092

MUTE Q202

MUTE Q203

RELAY

SURR AMP

IC1001(1/2)

IC1001(2/2)

DRIVE

Q881,883

D181

OVER LOAD

D802

DETECT

Q801

D1002

D871

Q891,892

MUTE CONT

DC DET

Q822

R-CH

MUTE CONT

Q184

OVER LOAD

DETECT

Q1001

OVER LOAD

DETECT

Q1081

MUTE Q130

MUTE CONT

Q182,183

RY881

RELAY

DRIVE

Q1061,1063

RELAY DRIVE

Q1062,1064

RY1061

RY1062

FAN DRIVE

Q941,942

R CH

SPA SIG

MIC SIG

TA MUTE

FAN

TM801

TM802

J102

SPEAKER

WOOFER

OUT

FRONT

REAR

CENTER

DISPLAY SECTION

(Page 27)

DISPLAY SECTION

(Page 27)

POWER

SECTION

(Page 27)

J1691 PHONS

LAT

CLK

DATA

PL LAT

PL CLK

PL DATA

DATA

CLOCK

CLK

LATCH

LAT

LINE MUTE

STK MUTE

PROTECT

SYSTEM CONTROL

IC401(2/3)

X401

32.768kHz

XC IN

XC OUT

X402

16MHz

X IN

X OUT

F RELAY

SURR RELAY

HP IN

• R-CH is omitted

• Signal Path

: FM

: CD

: PB (DECK B)

: REC (DECK B)

2626

DISPLAY/POWER SECTION

HCD-VZ30AV

J1601

MIC 1

J1601

MIC 1

MAIN

SECTION

(Page 26)

MAIN

SECTION

(Page 26)

SECTION

(Page 25)

MAIN

SECTION

(Page 26)

IC1601

RV1601

MIC VOL

IIC DATA

TA MUTE

SPA SIG

MIC SIG

IIC CLK

IC1651

ECHO

AMP

SYSTEM CONTROL

IC401(3/3)

WAKE UP

CD POWER

RV1651

ECHO

POWER

RESET

AC CUT

VOL

IC1601

RESET

SWITCH

Q501

+5V

DISPLAY CONTROL

IC701

IC702

REMOTE

CONTROL RECEIVER

IC501

RESET

SPEANA

BPF

IC704

S621-624

S627-636

FUCTION

KEY

S641-647

S649-652

FUCTION

KEY

S601-609

S611-614

FUCTION

KEY

S701

STICK

CONTROL

S751

VOLUME

D503

D506

100

A+5V(SW)

BPF1

BPF2

BPF3

BPF4

BPF5

BPF6

L+R

KEY0

KEY1

KEY2

STICK1

STICK2

VOL A

VOL B

SIRCS

IIC DATA

IICCLOCK

WAKE UP

RESET

P35

GRID EXT RESET

LED0

LED8

LED10

LED11

STANDBY LED

TIMER LED

LED SEL

XIN

VKK

F1 F2

33GRID EXT CLK

Q601,602,603,605 Q607,609,611,613 Q617,652,663-665

X701

12.5MHz

91XOUT

CLK

RESET

Q690

DRIVER

IC703

LED

DRIVER

FL701

FLOURESCENT

INDICATOR TUBE

18G

VKK

LED +B

SWITCH

Q691,692

LED+7V

D601-613,617,618

D652,661-665

+12V

+10V

TU+10V

+7V

LED+7V

AC DET

A+5V

A+5V(SW)

D+5V

-7V

UNREG -10V

T902

POWER

Q981

D991-994

D995-998

TRANSFORMER

240V

220V

120V

F913 F912

F911

EA,MY,SP,HK

MODEL

EA,MY,SP,HK

MODEL

TH,CH MODEL

JW922

EA,MY,SP,HK

MODEL

S901

VOLTAGE

SELECTOR

230-240V

220V

120V

AC IN

D911

+VH

-VH

POWER

AMP

+VL

-VL

IC905

+12V

REG

IC907

+10V

REG

Q922

IC906

+7V

REG

AC DET

+B SW

Q910,911

+B SW

Q912,913

Q905

Q901,902

-B SW

Q903,904

Q906

IC904

+5V

REG

Q921

D912

IC901

+5V

REG

IC903

+5V

REG

IC902

-7V

REG

D951

VG REG

2727

+ 61 hidden pages

Sony HCD-VZ30AV Service manual

TABLE OF CONTENTS

GENERAL

DISASSEMBLY

SERVICE MODE

MECHANICAL ADJUSTMENTS

ELECTRICAL ADJUSTMENTS

DIAGRAMS