Sony HCD-GTR88 Service Manual

SERVICE MANUAL

Sony Corporation

Audio & Video Business Group Published by Sony EMCS (Malaysia) PG Tec

HCD-GTR88

COMPACT DISC DECK RECEIVER

9-890-544-01

2010D08-1

©

2010.04

E Model

Australian Model

Ver. 1.0 2010.04

• HCD-GTR88 is the ampliﬁ er, USB, CD player, tuner and tape deck (only E4 Model) section in MHC-GTR88. Photo: HCD-GTR88 (E4 Model)

CD Section

Model Name Using Similar Mechanism HCD-GTZ4/GTZ4i/GTZ5 CD Mechanism Type CDM88BL-DVBU101 Optical Pick-up Name KHM-313CAB/C2NP

Tape Deck Section (only for E4 Model)

Model Name Using Similar Mechanism HCD-GT111/GT222/GT444/GT555 Tape Mechanism Type CS-21SC-900TP

SPECIFICATIONS

Ampliﬁ er section

The following are measured at Mexican model: AC 127 V, 60 Hz Other models: AC 120 V, 220 V, 240 V, 50/60 Hz Front/Satellite Speaker Power Output (rated): 200 W + 200 W (at 6 , 1 kHz, 1% THD) Front Speaker RMS output power (reference): 345 W + 345 W (per channel at 8 , 1 kHz) Satellite Speaker RMS output power (reference): 140 W + 140 W (per channel at 24 , 1 kHz) Subwoofer RMS output power (reference): 200 W + 200 W (per channel at 6 , 100 Hz)

Inputs

PC (AUDIO IN) L/R Voltage 700 mV, impedance 47 kilohms MIC Sensitivity 1 mV, impedance 10 kilohms

(USB) port: Type A

Outputs

PHONES Accepts headphones of 8  or more

USB section

Supported bit rate MP3 (MPEG 1 Audio Layer-3): 32 kbps – 320 kbps, VBR WMA: 48 kbps – 192 kbps AAC: 48 kbps – 320 kbps Sampling frequencies MP3 (MPEG 1 Audio Layer-3): 32 kHz/44.1 kHz/48 kHz WMA: 44.1 kHz AAC: 44.1 kHz Transfer speed Full-Speed Supported USB device Mass Storage Class Maximum current 500 mA

Disc player section

System Compact disc and digital audio system Laser Diode Properties Emission Duration: Continuous Laser Output*: Less than 44.6 W * This output is the value measurement

at a distance of 200 mm from the objective lens surface on the Optical

Pick-up Block with 7 mm aperture. Frequency response 20 Hz – 20 kHz Signal-to-noise ratio More than 90 dB Dynamic range More than 88 dB

Tape deck section (For African model only)

Recording system 4-track 2 channel, stereo

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range North American and Brazilian models:

87.5 MHz – 108.0 MHz (100 kHz step) Other models:

87.5 MHz – 108.0 MHz (50 kHz step) Antenna FM lead antenna Antenna terminals 75 ohms unbalanced Intermediate frequency

10.7 MHz

AM tuner section

Tuning range Pan American and Oceanian models: 530 kHz – 1,710 kHz (with 10 kHz tun-

ing interval)

531 kHz – 1,710 kHz (with 9 kHz tuning

interval) Other models: 530 kHz – 1,610 kHz (with 10 kHz tun-

ing interval) 531 kHz – 1,602 kHz (with 9 kHz tuning

interval) Antenna AM loop antenna, external antenna

terminal Intermediate frequency 450 kHz

General

Power requirements Oceanian model: AC 230 V – 240 V,

50/60 Hz Mexican model: AC 127 V, 60 Hz Argentina model: AC 220 V, 50/60 Hz Other models: AC 120 V, 220 V or 230 V – 240 V, 50/60 Hz, Adjustable

with voltage selector Power consumption: 460 W Dimensions (w/h/d) (excl. speakers) (Approx.) 231 mm × 361 mm × 518 mm Mass (excl. speakers) (Approx.) African and Pan Asian models: 16.2 kg Other models: 15.7 kg

Design and speciﬁ cations are subject to change without notice.

• Abbreviation

E4 : African model

HCD-GTR88

2

NOTES ON CHIP COMPONENT REPLACEMENT

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

FLEXIBLE CIRCUIT BOARD REPAIRING

• Keep the temperature of 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.

SAFETY-RELA TED COMPONENT W ARNING!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK

0

ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL T O SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

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

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes.). Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA WT-

540A. Follow the manufacturers’ instructions to use these instruments.

2. A battery-operated AC milliammeter. The Data Precision 245 digital

multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or

battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)

1.5 k0.15 F

AC voltmeter (0.75 V)

To Exposed Metal Parts on Set

Earth Ground

Fig. A. Using an AC voltmeter to check AC leakage.

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

T ABLE OF CONTENTS

1. SERVICING NOTES

.............................................. 3

2. DISASSEMBLY

2-1. Disassembly Flow ........................................................... 5

2-2. Case (Side-L/R) .............................................................. 6

2-3. Top Case.......................................................................... 6

2-4. Tape Mechanism Deck (For African Model only) .......... 7

2-5. Front Panel Block, HUB Board, DMB19 Board ............ 7

2-6. DC Fan (M101) ............................................................... 8

2-7. Back Panel, SUBTRANS Board ..................................... 8

2-8. MAIN Board .................................................................. 9

2-9. DC Fan (M101), PT SHIELD Board,

POWER AMP Board Section ......................................... 9

2-10. POWER AMP Board, SUBWOOFER Board ................. 10

2-11. Chassis Section ............................................................... 10

2-12. CD Mechanism Block (CDM88BL-DVBU101) ............ 11

2-13. Optical Pick-up Block (KHM-313CAB) ........................ 11

2-14. Belt (DLM3A) ................................................................ 12

3. TEST MODE

............................................................. 13

4. MECHANICAL ADJUSTMENTS

....................... 15

5. ELECTRICAL ADJUSTMENTS

......................... 16

6. DIAGRAMS

6-1. Block Diagram - RF SERVO, USB Section - ................. 17

6-2. Block Diagram - MAIN Section - ................................... 18

6-3. Block Diagram - AMP Section - ..................................... 19

6-4. Block Diagram - DISPLAY,

POWER SUPPLY Section - ............................................ 20

6-5. Printed Wiring Board - DISPLAY Board - ..................... 22

6-6. Schematic Diagram - DISPLAY Board - ........................ 23

6-7. Printed Wiring Board - DMB19 Board - ........................ 24

6-8. Schematic Diagram - DMB19 Board (1/3) - .................. 25

6-9. Schematic Diagram - DMB19 Board (2/3) - .................. 26

6-10. Schematic Diagram - DMB19 Board (3/3) - .................. 27

6-11. Printed Wiring Board - POWER AMP Board - .............. 28

6-12. Schematic Diagram - POWER AMP Board - ................. 29

6-13. Printed Wiring Board - MAIN Board - ........................... 30

6-14. Schematic Diagram - MAIN Board (1/3) - ..................... 31

6-15. Schematic Diagram - MAIN Board (2/3) - ..................... 32

6-16. Schematic Diagram - MAIN Board (3/3) - ..................... 33

6-17. Printed Wiring Board - MIC, VOL and USB Board - .... 34

6-18. Schematic Diagram - MIC, VOL and USB Boards - ...... 35

6-19. Printed Wiring Board - TC Board - ................................. 36

6-20. Schematic Diagram - TC Board - ................................... 36

6-21. Printed Wiring Board

- TRANS and SUBTRANS Board - ............................... 37

6-22. Schematic Diagram

- TRANS and SUBTRANS Boards - .............................. 38

6-23. Printed Wiring Board - SUBWOOFER Board - ............. 39

6-24. Schematic Diagram - SUBWOOFER Board - ................ 40

6-25. Printed Wiring Board - HUB Board - ............................. 41

6-26. Schematic Diagram - HUB Board - ................................ 42

7. EXPLODED VIEWS

7-1. Case Section .................................................................... 53

7-2. Top Panel Section ........................................................... 54

7-3. Loading Panel Section, HUB Board Section,

DMB19 Board Section .................................................... 55

7-4. DISPLAY Board Section ............................................... 56

7-5. Front Panel Section ......................................................... 57

7-6. Back Panel Section ......................................................... 58

7-7. MAIN Board Section ..................................................... 59

7-8. Chassis Section ............................................................... 60

7-9. CD Mechanism Section (CDM88BL-DVBU101) ......... 61

8. ELECTRICAL P ARTS LIST

............................... 62

HCD-GTR88

3

SECTION 1

SERVICING NOTES

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

ﬂ

exible board is easily damaged and should be handled with

care.

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (

Caution:

Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 °C higher than ordinary solder.

Ordinary soldering irons can be used but the iron tip has to be

applied to the solder joint for a slightly longer time.

Soldering irons using a temperature regulator should be set to

about 350 °C.

Caution:

The printed pattern (copper foil) may peel away if

the heated tip is applied for too long, so be careful!

• Strong viscosity

Unleaded solder is more viscous (sticky, less prone to

ﬂ

ow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may

also be added to ordinary solder.

NOTE OF REPLACING THE IC102 ON THE DMB19 BOARD

IC102 on the DMB19 board cannot exchange with single. When this part is damaged, exchange the entire mounted board.

RELEASING THE DISC TRA Y LOCK

The disc tray lock function for the antitheft of an demonstration disc in the store is equipped.

Releasing Procedure:

1. Press [I/1 STANDBY] button to turn the power on.

2. Press the [CD] button to select CD function.

3. While pressing the [

x

] button, press the [Z OPEN/CLOSE]

button for more 5 seconds).

4. The message “UNLOCKED” is displayed and the disc tray is unlocked.

Note:

When “LOCKED” is displayed, the slot lock is not released by

turning power on/off with the

[I/1 STANDBY] button.

MODEL IDENTIFICA TION – Back Panel –

• Abbreviation AR : Argentina model AUS : Australian model E2 : 120V AC area in E model E4 : African model E51 : Chilean and Peruvian models

MX : Mexican model

Model Part No.

HCD-GTR88: E2, E51

4-164-385-0[]

HCD-GTR88: AR

4-164-385-1[]

HCD-GTR88: MX

4-164-385-2[]

HCD-GTR88: E4

4-164-385-4[]

HCD-GTR88: AUS

4-164-385-5[]

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on the disc re

ﬂ

ective 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.

PART No.

HCD-GTR88

4

HOW TO DISTINGUISH T APE MECHANISM DECK

Two kinds of tape mechanism decks installed by this set exist.

Please do the repair exchange after con

ﬁ

rming which tape mechanism deck set of the repair according to how to distinguish the ﬁ gure below.

Tape Deck Name Tape Deck Part No. Belt Part No.

CS-21SC-900TP 1-797-575-11

2-688-621-01 BELT (R/F) 2-688-622-01 BELT (MAIN)

motor

Mold part: CS-21SC-900TP

tape deck

HOW TO OPEN THE TRA Y WHEN POWER SWITCH TURN OFF

Step:

1) Work after removing the case (side-R and side-L) referring to “2.2. CASE (SIDE-L/R)” on disassembly (page 6).

2) Work after removing the top case referring to “2-3. TOP CASE” on disassembly (page 6).

lever

state of opening the CD tray

gear

d

Turn a gear by a driver till a lever rises up to the position of the figure. (Try to push gear at the same time slowly pull Front panel away.)

a

c

b

e

HCD-GTR88

5

SECTION 2

DISASSEMBLY

• This set can be disassembled in the order shown below.

2-1. DISASSEMBLY FLOW

Note:

Follow the disassembly procedure in the numerical order given.

2-6. DC FAN (M101) (Page 8)

2-2. CASE (SIDE-L/R) (Page 6)

2-3. TOP CASE (Page 6)

2-5. FRONT PANEL BLOCK, HUB BOARD, DMB19 BOARD (Page 7)

2-7. BACK PANEL, SUBTRANS BOARD (Page 8)

2-8. MAIN BOARD (Page 9)

2-11. CHASSIS SECTION (Page 10)

2-9. DC FAN (M101), PT SHIELD BOARD, POWER AMP BOARD SECTION (Page 9)

2-10. POWER AMP BOARD, SUBWOOFER BOARD (Page 10)

2-12. CD MECHANISM BLOCK (CDM88BL-DVBU101) (Page 11)

2-13. OPTICAL PICK-UP BLOCK (KHM-313CAB) (Page 11)

SET

2-4. TAPE MECHANISM DECK (FOR AFRICAN MODEL ONLY) (Page 7)

2-14. BELT (DLM3A) (Page 12)

HCD-GTR88

6

2-2. CASE (SIDE-L/R)

2-3. TOP CASE

2 three screws (BVTP3 u 10)

4 case (side-R)

1 four screws

(case 3 TP2)

3

2 three screws

(BVTP3 u 10)

Tape deck section (For African model only)

4 case (side-L)

1 four screws

(case 3 TP2)

3

Tape deck section (For African model only)

1 one screw (BVTP3 u 10)

3 two claws

2 wire (flat type) (9 core)

(CN450)

4 Lift up the back side of top case.

5 top case

HCD-GTR88

7

2-4. TAPE MECHANISM DECK (FOR AFRICAN MODEL ONLY)

2-5. FRONT PANEL BLOCK, HUB BOARD, DMB19 BOARD

6 bracket (deck)

5 two screws

(BVTP2.6 u8)

7 two screws (BVTP2.6 u8)

9 tape mechanism deck

1 CN501 (8P)

3 two screws

(BVTP3 u 8)

2 Cut the clamp.

8 Open the cassette box.

4 TC board

top panel block

qd wire (flat type) (13 core) (CN410)

lever

1 Turn a gear by a driver till a lever rises up to the position of the figure.

state of opening the CD tray

gear

4 wire (flat type) (23 core) (CN405)

8 one screw (BVTP3 u 10)

q; front panel block

3 panel loading

9 five screws

(BVTP3 × 8)

8 one screw (BVTP3 × 10)

7 CN1501 (10P)

6 CN470 (7P)

5 wire (flat type) (11 core)

(CN403)

qk DMB19 board: CN1105 (4P)/ HUB board: CN1500 (4P)

qg two screws (BVTP3 u8)

qa CD block

qj HUB

board

wd two screws (BVTP3 u10)

wg four screws (BVTP3 u8)

wf wire (flat type) (9 core) (CN1106)

wh DMB19 board

ql bracket

(ground hub)

qh CN201 (6P)

w; CN650 (8P)

qs wire (flat type) (24 core)

(CN101)

wa CN601 (9P)

ws wire (flat type) (7 core)

(CN4602)

qf saranet cushion

2 Pull the tray by hand.

HCD-GTR88

8

2-6. DC FAN (M101)

2-7. BACK PANEL, SUBTRANS BOARD

2 cover fan (GVX7S)

1 four screws

(BVTP3 u 8)

3 two screws (BVTP3 u 8)

4 DC fan (M101)

5 CN600 (3P)

1 wire (flat type) (9 core)

(CN220)

qj binding band (taiton)

2 CN1200 (3P)

4 CN691 (4P)

3 CN1201 (4P)

qk clamp filter

(ferrite core)

qf Bracket (Subtrans)

qd SUBTRANS board

wa back panel

qh tuner (FM/AM)

qg two screws

(BVTT3 u 6)

5 one screw (BVTP3 u 8)

qs two screws (BVTP3 u 8)

6 one screw (BVTP3 u 8)

7 two screws (BVTP3 u 8)

w; power cord

8 one screw

(BVTP3 u 8) 9 one screw (BVTP3 u 8)

q; one screw (BVTP3 u 8)

ql cord bush

qa

HCD-GTR88

9

2-8. MAIN BOARD

2-9. DC FAN (M101), PT SHIELD BOARD, POWER AMP BOARD SECTION

4 CN550 (6P)

5 MAIN board

3 CN200 (12P)

1 three screws

(BVTP3

u 8)

2 CN100 (10P)

1 one screw

(BVTP3 u 8)

6 POWER AMP board section

5 CN1302 (3P)

q; DC Fan (M101)

8 DC Fan bracket

2 PT SHIELD board

3 three screws

(BVTP3 u 8)

9 two screws (BVTP3 u 8)

7 two screws (BVTP3 u 8)

qa one screw (BVTP3 u 8)

4 CN1250 (13P)

qs clamp

HCD-GTR88

10

2-10. POWER AMP BOARD, SUBWOOFER BOARD

2-11. CHASSIS SECTION

1 one screw (BVTP3 u 8)

6 two screws (BVTP3 u 8)

7 Bracket (PWB)

5 POWER AMP board

8 heat sink

q; SUBWOOFER board

2 one screw

(BVTP3 u 8)

3 two screws (transistor)

9 two screws (transistor)

4 CN803 (7P)

1 two screws

(BVTP3 u8)

1 two screws (BVTP3 u8)

3 chassis block

2

HCD-GTR88

11

2-12. CD MECHANISM BLOCK (CDM88BL-DVBU101)

2-13. OPTICAL PICK-UP BLOCK (KHM-313CAB)

qa sheets (CDM)

8 one screw

(BVTP3 u 8)

6 cover dust (CDM88-A-BTM)

5 cover (shutter)

1 wire (flat type) (13 core)

(MOTOR board)

7 three sheets (CDM)

q; CD mechanism block

(CDM88BL-DVBU101)

8 one screw (BVTP3 u8)

9 cover dust (CDM88-A-top)

2 one screw

(BVTP3 u8)

3 bracket (MTK)

4

CD mechanism block (CDM88BL-DVBU101)

4 two insulator screws

5 two insulators

4 two insulator screws

5 two insulators

7 optical pick-up block

(KHM-313CAB)

3 connector

6 holder BU

1 four screws

(BVTP2.6)

2 wire (flat type) (24 core)

HCD-GTR88

12

2-14. BELT (DLM3A)

2

four screws

3

cover

4

two belts (DLM3A)

belt

position of belt

gear

lever

1 Turn a gear till a lever rises up to the position of the figure.

state of opening the CD tray

HCD-GTR88

13

SECTION 3

TEST MODE

P ANEL TEST MODE

This mode is used to check the ﬂ uorescent indicator tube, LEDs, keys, [MASTER VOLUME] jog, [OPERATION DIAL] jog, model, destination and software version.

Procedure:

1. Press [x], button, [METER MODE] button and [DISC SKIP/ EX-CHANGE] button simultaneously.

2. All LEDs and segments in

ﬂ

uorescent indicator tube are light-

ed up.

3. When you want to enter to the software version display mode, press [DISC 1] button. The model information appears on the ﬂ

uorescent indicator tube.

• “GVX 7S” is shown for MHC-GTR88.

Press [DISC 1] button again to view the destination

information.

4. During the destination information display, press [DISC 1] button. Each time [DISC 1] button is pressed, the

ﬂ

uorescent indicator tube shows the version of each category software in the following sequence: SC, MTK (DMB Board

ﬁ

rmware version), GC, SYS, CD, CDMA, CDMB, ST, TC TA, TM, MTR (METER) and return back to model information display.

5. When [DISC 3] button is pressed while the version numbers are being displayed except model and destination, the date of the software creation appears. When [DISC 3] button is pressed again, the display returns to the software version display. When [DISC 1] button is pressed while the date of the software creation is being displayed, the date of the software creation is displayed in the same order of software version display.

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

7. In the key check mode, the

ﬂ

uorescent indicator tube displays

“K0 V0”.

Each time a button is pressed, “K” value increases. However,

once a button has been pressed, it is no longer taken into account.

“V” value increases in the manner of 0, 1, 2, 3 ... if [MASTER

VOLUME] knob is turned clockwise, or it decreases in the manner of 0, 9, 8, 7 ... if [MASTER VOLUME] knob is turned counterclockwise.

8. When [DISC SKIP/EX-CHANGE] button is pressed after all LEDs and segments in

ﬂ

uorescent indicator tube light up, al-

ternate segments in

ﬂ

uorescent indicator tube and LEDs would light up. If you press [DISC SKIP/EX-CHANGE] button again, another half of alternate segments in

ﬂ

uorescent indicator tube and LEDs would light up. Pressing [DISC SKIP/ EX-CHANGE] button again would cause all segments in

ﬂ

uo-

rescent indicator tube and LEDs light up.

9. To release from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.

COMMON TEST MODE

This mode is used to check operations of the Ampliﬁ er section.

To enter Common Test Mode Procedure:

1. Press [x], button, [METER MODE] button and [OPEN/ CLOSE] button simultaneously.

2. The CD ring indicators

ﬂ

ash on the ﬂ uorescent indicator tube. The function is changed to AUDIO and the volume is changed to VOLUME MIN.

Check of Ampliﬁ er Procedure:

1. Press [EQ BAND/SURROUND] button repeatedly until a message “GEQ MAX” appears on the

ﬂ

uorescent indicator

tube. GEQ increases to its maximum.

2. Press [EQ BAND/SURROUND] button repeatedly until a message “GEQ MIN” appears on the

ﬂ

uorescent indicator

tube. GEQ decreases to its minimum.

3. Press [EQ BAND/SURROUND] button repeatedly until a message “GEQ FLAT” appears on the

ﬂ

uorescent indicator

tube. GEQ is set to

ﬂ

at.

4. When the [MASTER VOLUME] knob is turned clockwise even slightly, the sound volume increases to its maximum and a message “VOLUME MAX” appears on the

ﬂ

uorescent indi-

cator tube.

5. When the [MASTER VOLUME] knob is turned counterclockwise even slightly, the sound volume decreases to its minimum and a message “VOLUME MIN” appears on the

ﬂ

uorescent

indicator tube.

To release from Common Test mode

1. To release from this mode, press [

?/1

STANDBY] button.

2. The cold reset is enforced at the same time.

COLD RESET

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

Procedure:

1. Press [

?/1

STANDBY] button to turn on the system.

2. Press [

x

] button, [ENTER] button, and [

?/1

ST ANDBY] but-

ton simultaneously.

3. “COLD RESET” appears on the

ﬂ

uorescent indicator tube.

After that, the

ﬂ

uorescent indicator tube becomes blank for a

while, and the system is reset.

V ACS ON/OFF

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

Procedure:

1. Press [

?/1

STANDBY] to turn on the system.

2. Press [

x

] button, [RETURN], and [DISPLAY] button simultaneously. The message “VACS OFF” or “VACS ON” appears on the

ﬂ

uorescent indicator tube.

TUNER STEP CHANGE

The step interval of AM channels can be toggled between 9 kHz and 10 kHz.

Procedure:

1. Press [

?/1

STANDBY] button to turn on the system.

2. Press [TUNER/BAND] button repeatedly to select the “AM”.

3. Press [

?/1

STANDBY] button to turn off the system.

4. Press [ENTER] button and [

?/1

STANDBY] button simultaneously. The system turns on automatically . The message “AM 9K STEP” or “AM 10K STEP” appears on the

ﬂ

uorescent in-

dicator tube and thus the channel step is changed.

CD SHIP MODE (WITH MEMORY CLEAR)

This mode moves the optical pick-up to the position durable to vibration and clears all data including preset data stored in the EEPROM to initial conditions during the next AC-In. Use this mode when returning the set to the customer after repair.

Procedure:

1. Press [

?/1

STANDBY] button to turn on the system.

2. Select CD function.

3. Press [

x

] button, [OPEN/CLOSE] button and [

?/1

STANDBY] button simultaneously. The system turns off automatically.

4. After the “STANDBY” blinking display ﬁ nishes, a message “MECHA LOCK” is displayed on the

ﬂ

uorescent indicator tube

and the CD ship mode is set.

HCD-GTR88

14

CD SHIP MODE (WITHOUT MEMORY CLEAR)

This mode moves the optical pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.

Procedure:

1. Press [

?/1

STANDBY] button to turn on the system.

2. Select CD function.

3. Press [DISC SKIP/EX-CHANGE] button and [

?/1

STANDBY] button simultaneously. The system turns off automatically.

4. After the “STANDBY” blinking display

ﬁ

nishes, a message “MECHA LOCK” is displayed on the ﬂ uorescent indicator tube and the CD ship mode is set.

CD TRA Y LOCK MODE

This mode let you lock the disc tray. When this mode is activated, the disc tray will not open when [

Z

OPEN/CLOSE] button or [DISC SKIP/EX-CHANGE] button is pressed. The message “LOCKED” will be displayed on the

ﬂ

uorescent indicator tube.

This mode only applied when there is disc(s) on the tray.

Procedure:

1. Press [

?/1

STANDBY] button to turn on the system.

2. Select CD function.

3. Press [

x

] button and [Z OPEN/CLOSE] button simultaneously and hold down until “LOCKED” or “UNLOCKED” displayed on the

ﬂ

uorescent indicator tube (around 5 seconds).

FACT OR Y PRESET

This mode is use to load all the factory use preset frequencies into FM 1-FM 20 and AM 1-AM 10. Originally, frequency of FM 1-FM 20 and AM 1-AM10 are set to the minimum frequency.

Procedure:

1. Press [

?/1

STANDBY] button to turn on the system.

2. Press [EQ BAND/SURROUND], [x] button, and [DISC 1] button simultaneously and the message “FACTORY” appears on the

ﬂ

uorescent indicator tube. The function is changed to

TUNER automatically.

V ACS DISPLAY

This mode is used to check the VACS level.

Procedure:

1. Press [

?/1

STANDBY] button to turn on the system.

2. Press [ERASE], [

x

] button and [ENTER] button simultane-

ously.

3. The

ﬂ

uorescent indicator tube displays “V0AP0”.

“V” represents Conventional VACS (Triggered by signal level)

“AP” represents AP VACS (Abuse Protection Variable Attenuation Control System)

• To release from VACS display mode

To release from this mode, do the step (2) again.

METER SWITCH TOUCH COUNT DISPLAY

This mode is used to display the total count of meter pointer touch initial switch and max switch.

Procedure:

1. Press [

?/1

STANDBY] button to turn on the system.

2. Press [x] button, [ENTER] button and [DISPLAY] button simultaneously.

3. The

ﬂ

uorescent indicator tube displays “IxxxxxMyyyyy”. “I” represents the Initial Switch touch. “xxxxx” represents the total count of Initial Switch touch. (Maximum Value of “xxxxx” = 65535) “M” represents the Max Switch touch. “yyyyy” represents the total count of Max Switch touch. (Maximum Value of “yyyyy” = 65535)

• To release from Meter Switch Touch Count Display Mode.

To release from this mode, do the step (2) again. The

ﬂ

uorescent indicator tube displays “MODE OUT”.

METER TEST MODE

This mode is used to check the meter device.

Procedure:

1. Press [

?/1

STANDBY] button to turn on the system.

2. Press [x] button, [ENTER] button and [METER MODE] button simultaneously.

3. Meter Backlight LEDs, Meter Pointer LEDs, Power Illuminator LEDs and

ﬂ

uorescent indicator tube are lighted up.

4. When you want to perform count total step from Initial Switch to Max Switch operation mode, press [

M/>/

TUNING +] button. The meter pointer will move from Initial Switch to Max Switch and

ﬁ

nally move back to the middle position. The

total step count information appears on the

ﬂ

uorescent indica-

tor tube. “xxx STP yy” is shown.

“xxx” represents the total step. (Value of “xxx” should between 430 steps to 470 steps) “yy” represents the status of total step count. (If total step between 430 steps to 470 steps, “yy” is OK, Else

“yy” is NG)

5. When you want to perform count total step from Max Switch to Initial Switch operation mode, press [

m/./

TUNING –] button. The meter pointer will move from Max Switch to Initial Switch and

ﬁ

nally move back to the middle position. The

total step count information appears on the

ﬂ

uorescent indica-

tor tube. “xxx STP yy” is shown.

“xxx” represents the total step. (Value of “xxx” should between 430 steps to 470 steps) “yy” represents the status of total step count. (If total step between 430 steps to 470 steps, “yy” is OK, else

“yy” is NG)

• To release from Meter Test Mode. To release from this mode, do the step (2) again. The ﬂ uorescent indicator tube displays “TST MODE OUT”.

CDM AGING MODE

This mode is used to display the total count of all disc playing.

Procedure:

1. Press [

?/1

STANDBY] button to turn on the system.

2. Select CD function and All DISC play mode.

3. Put discs on all trays and close the tray.

4. Press [GROOVE] button, [

x

] button and [RETURN] button

simultaneously.

5. The

ﬂ

uorescent indicator tube displays Aging Display “AG

xxxx/yyyy”.

“xxxx” represents the error counter (Maximum Value of “xxxx” = 9999) “yyyyy” represents the cycle counter (Maximum Value of “yyyy” = 9999)

6. Press [

m/./

TUNING –] or [

M/>/

TUNING +] to

search for Aging History Error Display

The

ﬂ

uorescent indicator tube displays “Mx E1E2E3E4”. x: error history number E1: Loading sequence JCP high E2: Loading sequence JCP low E3: Loading operation JCP E4: Cam position operation JCP

7. Press [RETURN] to Aging Display

• To release from CDM Aging Mode. To release from this mode, press [

?/1

ST ANDBY] button or

perform COLD RESET operation.

HCD-GTR88

15

SECTION 4

MECHANICAL ADJUSTMENTS

(For African model only) PRECAUTION

1. Clean the following parts with a denatured-alcohol-moistened swab :

record/playback head pinch roller erase head rubber belts capstan idlers

2. Demagnetize the record/playback head with a head demagnetizer. (Do not bring the head magnetizer close to the erase head.)

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.

• T orque Measurement

Mode Torque Meter Meter Reading

FWD CQ-102AS

2.0 – 8.0 mN • m (20 to 80 g • cm)

(0.28 – 1.12 oz • inch)

FWD Back T ension CQ-102C

0.15 – 0.6 mN • m (1.5 to 6 g • cm)

(0.021 – 0.083 oz • inch)

FF CQ-201AS

5 – 17.7 mN • m

(50 to 177 g • cm)

(0.7 – 2.48 oz • inch)

REV CQ-201B

5 – 17.7 mN • m

(50 to 177 g • cm)

(0.7 – 2.48 oz • inch)

• T ape Tension Measurement

Mode Torque Meter Meter Reading

FWD CQ-403A

more than 80 g

(more than 2.82 oz)

HCD-GTR88

16

SECTION 5

ELECTRICAL ADJUSTMENTS

FM TUNE LEVEL CHECK

Procedure:

1. Turn the power on.

2. Input the following signal from signal generator to FM antenna input directly.

* Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz Deviation : 75 kHz Modulation : 1 kHz ANT input : 35 dBu (EMF)

Note:

Use 75 ohm coaxial cable to connect signal generator and the set.

You cannot use video cable for checking.

Use signal generator whose output impedance is 75 ohm.

3. Set to FM tuner function and tune A, B and C signals.

4. Con

ﬁ

rm “TUNED” is lit on the display for A, B and C signals.

When mark of “TUNED” means “The selected station signal is received in good condition.”

(For African model only)

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

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

TEST TAPE

Tape Signal Used for

P-4-A063 6.3 kHz, -10 dB Azimuth Adjustment

RECORD/PLA YBACK HEAD AZIMUTH ADJUSTMENT Procedure:

1. Mode: Playback

set

MIC board PHONES jack (J702)

+ –

level meter

test tape P-4-A063 (6.3 kHz, 10 dB)

TUNER SECTION

FM signal generator

OUT (75 Ω)

SET

DECK SECTION

0dB = 0.775V

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 so that outputs match within 1dB of peak.

Screw position

L-CH peak

within 1 dB

Output level

L-CH peak

R-CH peak

within 1 dB

Screw position

R-CH peak

3. Mode: Playback

set

test tape P-4-A063 (6.3 kHz, 10 dB)

oscilloscope

V

H

waveform of oscilloscope

in phase 45q 90q 135q 180q

good

wrong

MIC board PHONES jack (J702)

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

Adjustment Location:

Record/Playback/Erase Head

HCD-GTR88

1717

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM - RF SERVO, USB Section -

REC/PLAY B

OPTICAL PICK-UP

BLOCK

(KHM-313CAB)

RF AMP, SERVO DSP,

AUDIO PROCESSOR

IC101

SYSTEM

CONTROLLER

IC401 (1/4)

FOCUS/TRACKING COIL DRIVE,

SPINDLE/SLED MOTOR DRIVE

IC201

AUTOMATIC POWER

CONTROL

Q102-1

RF_IP 125

RF_C 3

RF_B2RF_A1RF_D

4

RF

VOA/A

VOB/B

VOC/C

VOD/D

RF_F6VOE/E+G

RF_E5VOF/F+H

V2O12VC

LDO117LD (780)

AUTOMATIC POWER

CONTROL

Q102-2

LDO2 18LD (650)

FOO25

CD ON

SWITCH

Q101-1

CD ON

SWITCH

Q101-2

VR (780)

MSW

GPIO

23

118

VR (650)

FCS+

MSW

MDI115

MDI216

PD

LIMIT SW

Q103

SF_CS#CS_

SD-RAM

IC104

X101

27MHz

36

FCS– 37

1

TRO24

TRK+ 35

TRK– 34

4

FMO21

SL+ 29

SL– 30

10

DMO20

SP+ 27

SP– 28

31

32

41

46

47

13

SPFG/OPINN128

45

GPIO

120

DG0, DQ1 – DQ15

RD0 – RD15

A0 – A11

RA0 – RA11

2, 4, 5, 7, 8, 10, 11, 13, 42,

44, 45, 47, 48, 50, 51, 53

45 – 49, 51 – 53,

64 – 61, 56 – 59

82, 83, 85, 86,

74 – 69, 81, 67

23 – 26,

29 – 34, 22, 35

36

XTALI

9

1

SF_CKSCK

39

6

BA0 BA0

78

20

BA1 BA1

80

21

RCLK CLK

66

38

DQM0 LDQM

55

15

DQM1 UDQM

65

39

RAS# RAS

77

18

CAS# CAS

76

17

RWE# WE

75

16

: CD PLAY

: AUDIO

: USB

FOCUS

COIL DRIVE

TRACKING

COIL DRIVE

SLED

MOTOR DRIVE

SPINDLE

MOTOR DRIVE

REGULATOR

GPIOMUTE123 11619

6

7

MUTE4MUTE4 2220GPIOTSD-M 9422IOPMON/

OPINP

127

40

8

PS

21

BUFFER

RF +3.3V

REGO2

REGO1

REGO2

REGO1

FLASH ROM

IC102

XTALO

10

L-OUT

115

119

GPIO

114

GPIO19

106

VINL

14

13

VINR

BCK

7

LRCK

6

8

SCKI

A/D CONVERTER

IC4601

9

DOUT

R-CH

USB CONTROLLER

IC1501

31

USBUP_DP

30

USBUP_DM

AOUT-L

5

8

AOUT-R

D/A CONVERTER

IC4602

1

SDATA2SCLK3LRCK4ACLK

USB_DP 27

R-CH

USB_DM 28

SO

2

SI

5

SF_DO

37

SF_DI

38

PRST#

43

CD MECHANISM

DECK

M1-

M2+

M2-

M1+

23

M1- 25

M2+

24

M2- 26

MOTOR

DRIVE

Q645 - 648

MOTOR

DRIVE

Q640, 641,

Q643, 644

SW3

SW2

SW7-CHACK

SW1

21

SW3

22

SW2

18

SW-CHUCK

19

SW5-STOCK

SW8-OPEN

SW6-CLOSE

SW-STOCK

6

SW-CLOSE

7

SW-OPEN 5

2USBDN1_DP

1USBDN1_DM

50MTK-OC2

CN1001

3

2

1

D+

D–

47MTK-OC1

VBUS

VBUS OVER

CURRENT DETECT

IC1500

4USBDN2_DP

3USBDN2_DM

3

2

1

D+

D–

VBUS

MTK-RST38

MTK-TXD35MTK-RXD36MTK-CLOCK37MTK-XIFCS

34

MTK-BUSY 39

IFSDI

35

IFSOD

41

IFSCK

40

IFCS#

88

IFBSY

87

HUB_RST45

VBUS_DET 44

VBUS_DET27RESET_N

26

X1500

24MHz

XTAL1/

CLKIN

33

XTAL2

32

USB +5V

PLAY A

CN1000

SIGNAL PATH

R-CH is omitted due to same as L-CH.

OPOUT126

1

7

3

5

A

(Page 18)

B

(Page 18)

USB RECORD PREAMP

7 5

IC251

HCD-GTR88

1818

6-2. BLOCK DIAGRAM - MAIN Section -

R-CH

TUNER (FM/AM)

AM

FM ANT

AM ANT

ST-L

ST-R

ST-DOUT

R-CH

(E4)

R-CH

ST-DIN

ST-CLK

ST-CE

FM 75

:

COAXIAL

ANTENNA

TUNED

54 ST-TUNED

43 ST-L

56 ST-R

42 TAPE L

1 TAPE R

R-CH

3 CD-R

36 REC BL

7 REC BR

21

DATA

22

CLK

44

30

PC-L

46 MIC

29 VOLINLTONEOUTL 26

(SW OUTL)

R-CH

55 PC-R

40

CD-L

46 ST-DOUT

51 ST-CLK

53 ST-CE

R2A15216FP-DATA

58

TC REC MUTE

41

TC STATE

72

9

SA2

POWER ILLUMINATOR

69

VACS IN

70

R2A15216FP-CLK

57

HP/MIC DET

66

25

20

AGC OUTL

(SW OUTR)

AGC OUTR

OUTL

6

RECAR

28BB1L

37RECAL

BAND-PASS

FILTER

Q210

271917

18

BB2L

BB2R

BB1R

OUTR

BASS AGC

Q128

BASS AGC

Q178

D104

D201

D116

INPUT SELECTOR,

ELECTRICAL VOLUME

IC400

SYSTEM CONTROLLER

IC401 (2/4)

: AUDIO

SIGNAL PATH

R-CH is omitted due to same as L-CH.

: TUNER (FM/AM)

J700

MIC

RV700

MIC LEVEL

IC700 MIC AMP

52 ST-DIN

PC_R

PC_L

J020

PC IN

L-OUT

REC-L

HP DET

OUT

SW OUT

BASS AGC

: MIC

: TAPE (PLA Y)

: TAPE (REC)

R-CH

1375

R-CH

Q063

57

R-CH

L501

S501

IC502

IC501

OP AMP

MUTE

SW

Q062

MUTE

SW

BIAS OSC

Q501, 502

R-CH

EH

VREF

SW

L-CH

TAPE DECK

A

(Page 17)

13X-OUT

15X-IN

X402

8MHz

11XC-OUT

10XC-IN

X401

32.768kHz

Abbreviation

E4 : African model

C

(Page 19)

B

(Page 17)D(Page 19)

E

(Page 19)F(Page 19)

G

(Page 20)

75

HCD-GTR88

1919

6-3. BLOCK DIAGRAM - AMP Section -

R

L

SW PREAMP

IC255

75

SW PREAMP

IC254

75

SW PREAMP

IC253

75

FR PREAMP

IC252

POWER

AMP

IC1300

IC800

AMP

POWER

MUTING

Q270

OVER LOAD

DETECT

Q1301

OVER LOAD

DETECT

Q1300

OVER LOAD

DETECT

Q850

OVER LOAD

DETECT

Q800

R-CH

MUTING

Q245

MUTING

CONTROL

Q290

MUTE

Q1309, Q1308

LINE MUTE

63

STK MUTE

PROTECT

CONTROL

FAN HIGH SPEED

60

16

15

11

6

4

18 11

SW SPK RELAY

48

FAN MOTOR

DRIVE

Q602

RY1300

+

–

+

RY862

D1036

TH1301

M

M101

(DC FAN)

M

M101

(DC FAN)

PHONES

SUBWOOFER

RELAY

DRIVE

Q031

FR SPK RELAY

43

RELAY

DRIVER

Q032

FAN SW

Q600

R-CH

J702

SYSTEM CONTROLLER

IC401 (3/4)

: AUDIO

SIGNAL PATH

R-CH is omitted due to same as L-CH.

DC

DETECT

Q1302, Q1303

THERMAL

DETECTOR

Q1305, Q1307

R

L

FRONT

SPEAKER

TB1300

+

–

+

R

L

SATELLITE

SPEAKER

TB1301

59

BASS AGC

HP DET

OUT

SW OUT

RELAY

DRIVER

Q030

MUTING

Q220

14 8

C

(Page 18)

F

(Page 18)

D

(Page 18)

E

(Page 18)

+–+

–

TB801

H

61

13

MUTING

Q295

PROTECT

DETECT

Q1304, 1306

(Page 20)

R-CH

RELAY

DRIVER

Q033

HCD-GTR88

2020

6-4. BLOCK DIAGRAM - DISPLAY, POWER SUPPLY Section -

54

REMOTE CONTROL

RECEIVER

IC1100

FL1100

FLUORESCENT

INDICATOR

TUBE

94 SW/USB CTRL

FLUORESCENT INDICATOR

TUBE DRIVER

IC1101

SYSTEM CONTROLLER

IC401 (4/4)

RECT

D1201, 1202

LED-VOL1. 2

LED-VOL3. 4

LED-VOL5. 6

S1100 – 1109,

S1110 – 1119,

S1124 – 1133,

S1302

75STBY RELAY

RESET SWITCH

Q350, 351

D351

D571

D+3.3V

+1.8V

71OVERVOLTAGE

20AC CUT

12RESET

87 MASTER VOL

SG5/KS5 –

SG24/KS24

14 – 33

D1105 – 1107, SEL A

D1108 – 1110, SEL B

(STREAM)

LED DRIVE

Q1122

86 USB-LED CTRL

LED DRIVE

Q1121

D1104

SUBWOOFER

95 STBY LED

AD KEY0

4 SIRCS

D1011

I/

1

STANDBY

ROTARY

ENCODER

MASTER

VOLUME

S1301

DIN

FL-DRIVER-DATA2 2

CLK

FL-DRIVER-CLK1 1

STB

FL-DRIVER-CS3 100

889190

749789

85

POWER/DISPLAY-KEY

AD-KEY0

AD-KEY1

AD-KEY2

(AC IN)

RY1200

RELAY

DRIVE

Q1200

VOLTAGE

SELECTOR

S1200

FAN

+12V

D1250

M+9V

F1254

RECT

D600

F1252

F1253

F1250

F1251

RECT

D1300

LED+9V

+4V

REGULATOR

Q352-354

LED SEL A,

LED SEL B

CD MOTOR B+

REGULATOR

Q655 – 658

27

2 1

CDM-SD

JOG B+

3AD SUPPLY SW

B+ SWITCH

Q400, 500

–32V

REGULATOR

Q1250

AMP

SECTION

B+

FOR

FLUORESCENT

INDICATOR

TUBE

–VG

VF

PT1200

SUB POWER

TRANSFORMER

PT1250

MAIN POWER

TRANSFORMER

VCC +3.3V

EVER +3.3V

+VH

–VH

D1002, 1003

(E2, E51, E4)

(MX, AR, AUS)

AC DETECT

GR1 – GR14

34 – 47

LED DRIVE

Q1118 – 1120

USB B

D1000

USB A

+5V

REGULATOR

IC065

49MTK OE

USB +5V

M +5V

+5V

REGULATOR

Q360

B+ SWITCH

Q300 – 303

82

METER PTR

LED

METER

DISPLAY

BLOCK

AC CUT

DETECTOR

D1203

83 METER BL CTL

LED DRIVE

Q230

LED SEL A

LED SEL B

LED

LED DRIVE

Q582

81 METER SW

77 METER-IN4

78 METER-IN3

80 METER-IN2

METER-IN179

+9V

SWITCH

Q684

M+9V

(E4)

RECT

D1301

+VL

–VL

POWER

CONTROL

Q090

SW DRIVER

Q681

76TC_M+9V SW

+12V

REGULATOR

IC040

M+9V

UNREGULATE

H

Abbreviation

AR : Argentina model

E2 : 120V AC area in E model

E4 : African model

E51 : Chilean and Peruvian models

MX : Mexican model

AUS : Australian model

12

D623, 624

A+9V

AVDD +5V

DVDD +5V

RF+3.3V

+5V

REGULATOR

Q696

2

1

3.3V REGULATOR

IC107

F1255

(Page 19)

G

(Page 18)

+9V

REGULATOR

IC055

I

O

+3.3V

REGULATOR

IC075

+9V

REGULATOR

IC200

21

+1.8V

REGULATOR

IC111

81

HCD-GTR88

2121

• Circuit Boards Location

For Schematic Diagrams.

Note:

• All capacitors are in F unless otherwise noted. (p: pF) 50

WV or less are not indicated except for electrolytics and

tantalums.

• All resistors are in  and 1/4 W or less unless otherwise

speciﬁ ed.

•

f

: Internal component.

• 2 : Nonﬂ ammable resistor.

• 5 : Fusible resistor.

• C : Panel designation.

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMA TIC DIAGRAMS.

(In addition to this, the necessary note is printed in each block.)

• A : B+ Line.

• B : B– Line.

• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.

- TC Board -

no mark : TAPE PLAY

( ) : TAPE REC

- Other Boards -

no mark : TUNER (FM/AM)

( ) : CD PLAY

<< >> : TAPE PLAY

[ ] : TAPE REC

< > : USB

{ } : PC

*

: Impossible to measure

• Voltages are taken with 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 : AUDIO

f : TUNER (FM/AM)

E : TAPE PLAY

G : TAPE REC

N : MIC

J : CD PLAY

c : DIGITAL

I : USB

• Abbreviation

AR : Argentine model

AUS : Australian model

E2 : 120V AC area in E model

E4 : African model

E51 : Chilean and Peruvian models

MX : Mexican model

For Printed Wiring Boards.

Note:

• X : Parts extracted from the component side.

• Y : Parts extracted from the conductor side.

•

f

: Internal component.

•

: Pattern from the side which enables seeing.

(The other layers’ patterns are not indicated.)

• Indication of transistor.

C

B

These are omitted.

E

Q

CEB

These are omitted.

Caution:

Pattern face side:

(SIDE B)

Parts face side:

(SIDE A)

Parts on the pattern face side seen

from the pattern face are indicated.

Parts on the parts face side seen from

the parts face are indicated.

Note:

The components identiﬁ ed by mark 0 or dotted

line with mark 0 are critical for safety.

Replace only with part number speciﬁ ed.

Caution:

Pattern face side:

(Conductor Side)

Parts face side:

(Component Side)

Parts on the pattern face side seen

from the pattern face are indicated.

Parts on the parts face side seen from

the parts face are indicated.

• Abbreviation

AR : Argentine model

AUS : Australian model

E2 : 120V AC area in E model

E4 : African model

E51 : Chilean and Peruvian models

MX : Mexican model

• DMB19 board is multi-layer printed board.

However, the patterns of intermediate layers have not

been included in diagrams.

TRANS board

PT SHIELD board

POWER AMP board

MAIN board

SUBWOOFER board

SUBTRANS board

DMB19 board

HUB board

LED (GVX) board

included in METER DISPLAY ASSY

VOL board

USB board

MIC board

DISPLAY board

TUNER (FM/AM)

SW (GVX) board

included in METER DISPLAY ASSY

MOTOR DRIVE board

included in METER DISPLAY ASSY

TC board

(For African model only)

HCD-GTR88

2222

6-5. PRINTED WIRING BOARD - DISPLAY Board -

•

: Uses unleaded solder.

• See page 21 for Circuit Boards Location.

1 2 3 4 5 6 7 8 9 10 11 14 1512 13

A

B

C

D

E

F

G

H

I

J

2

22

1

23

CN1105

C1136

C1147

C1155

VCC

O

IC1100

1 3

CN1103

1 4

CN1102

S1100

S1101S1102

S1103

S1104

S1105

S1106 S1 107

S1108

S1110

S1111

S1112

S1113

S1114

S1115

S1116

S1117

S1118

S1119

S1124

S1125

S1126

S1127

S1128

S1129

S1130

S1131

S1132

S1133

D1104

D1101

D1107

D1106

D1105

D1110

D1109

D1108

C1137

12 54535 503118

DISPLAY BOARD

E

Q1118

E

Q1119

E

Q1120

E

Q1121

E

Q1122

D1102

1

52

13

14

26

27

39

40

IC1101

TP0001

TP0093

TP0070

TP0009

TP0105

TP0099

TP0081

TP0063

TP0033

TP0012

TP0108

TP0083

TP0075

TP0057

TP0023

TP0007

TP0103

TP0098

TP0080

TP0062

TP0019

TP0006

TP0102

TP0097

TP0072

TP0018

TP0014

TP0109

TP0084

TP0065

TP0058

TP0024

TP0008

TP0104

TP0073

TP0032

TP0002

FL1100

TP0094

TP0089

TP0060

TP0010

TP0106

TP0074

TP0034

TP0020

TP0092

TP0088

TP0079

TP0069

TP0026

TP0004

TP0100

TP0095

TP0071

TP0027

TP0016

TP0111

TP0091

TP0086

TP0077

TP0066

TP0015

TP0110

TP0085

TP0076

TP0059

TP0096

TP0005

TP0101

TP0061

TP0017

TP0112

TP0087

TP0078

TP0068

TP0011

TP0107

TP0090

TP0082

TP0064

TP0022

R1203

R1198

R1160

R1116

R1106

C1151

R1166 R1174

R1173

R1120

R1101

R1168

R1211

R1164

R1100

R1210

R1163

R1119

C1153

R1103

R1215

R1170

R1165

R1158

R1205

R1199

R1117

R1107

R1171

R1167

R1201

R1196

R1115

R1105

R1207

R1161

R1108

C1152

R1190

R1113

R1104

R1189

R1209

R1162

R1118

R1195

R1169

R1114

C1150

R1121

R1102

C1156

JR

JR1001

JR

JR1002

JR

JR1004

JR

JR1005

JR

JR1006

JR

JR1007

JR

JR1008

JR

JR1011

JR

JR1012

JR

JR1016

JR

JR1017

JR

JR1018

JR

JR1019

JR

JR1020

JR

JR1021

JR

JR1022

JR

JR1023

JR

JR1024

JR

JR1025

JR

JR1026

JR

JR1027

JR

JR1028

JR

JR1032

JR

JR1009

JR

JR1013

JR

JR1029

JR

JR1030

JR

JR1031

JR

JR1033

JR

JR1003

JR

JR1034

JR

JR1015

JR

JR1035

JR

JR1036

JR

JR1014

VOL BOARD

NO1103

(Page 34)

K

S1109

MAIN BOARD

CN405

(Page 30)

N

USB BOARD

NO1000

(Page 34)

L

DISC SKIP/

EX-CHANGE

ERASE

EQ BAND/

SURROUND

GROOVE

SUBWOOFER

PRESET EQ

1-881-085-

12

(12)

REC TIMER

DISC 3

USB A

USB B

RETURN

USB

CD

ENTER

TAPE/PC

TUNER

BAND

REC TO

USB B

DISC 2

DISC 1

OPTIONS

METER

MODE

DISPLAY

OPEN/CLOSE

TUNING +

TUNING -

STANDBY

+

-

"/1

HCD-GTR88

2323

• See page 43 for Waveforms. • See page 44 for IC Block Diagrams. • See page 48 for IC Pin Function Description.

6-6. SCHEMATIC DIAGRAM - DISPLAY Board -

1 2 3 4 5 6 7 8 9 10 11 14 1512 13

A

B

C

D

E

F

G

H

I

J

DISPLA Y BOARD

MAIN

BOARD

(1/3)

CN405

(Page 31)

N

VOL

BOARD

NO1103

(Page 35)

K

0.1

C1156

10V

47

C1155

10k

R1201

10k

R1203

10k

R1205

TP0075TP0074TP0073

680

R1195

680

R1199

680

R1196

680

R1198

100

R1210

TP0009

TP0010

TP0011

TP0012

TP0014

TP0015

TP0016

TP0017

TP0018

TP0019

TP0020

TP0022

TP0008

TP0007

TP0005

TP0006

TP0032

TP0034

2SC3052EF-T1-LEF

Q1120

2SC3052EF-T1-LEF

Q1118

2SC3052EF-T1-LEF

Q1119

TP0033

47k

R1160

TP0002

TP0004

1k

R1173

1k

R1174

10k

R1171

2SC3052EF-T1-LEF

Q1122

C1152

100p

123

3P

CN1103

DGND

DET SWITCH

VOL

47k

R1158

50V

2.2

C1136

2SC3052EF-T1-LEF

Q1121

TP0058

TP0060

TP0059

10k

R1207

680

R1162

4.7k

R1168

10k

R1170

1.5k

R1165

2.2k

R1166

1k

R1163

1.5k

R1164

3.3k

R1167

6.8k

R1169

123

4

4P

CN1102

SW/USB_LED

LED SEL B

LED SEL A

USB LED CTRL

TP0057

TP0062

TP0066 TP0065 TP0064 TP0063

100k

R1215

TP0061

C1151

100p

100

R1209

0.1

C1150

TP0068

100

R1211

C1153

100p

TP0069

TP0070

TP0023

TP0024

680

R1100

10k

R1108

680

R1113

1.5k

R1116

1.5k

R1115

1k

R1114

1.5k

R1103

1.5k

R1102

2.2k

R1104

4.7k

R1106

1k

R1101

6.8k

R1107

3.3k

R1105

SLR-325MCT31

D1104

4.7k

R1119

3.3k

R1118

6.8k

R1120

10k

R1121

2.2k

R1117

TP0001

VCC

OUT

GND

PNA4823M03S0

IC1100

FL1100

156789101112131415161718313233343536373839404142434445464748495054 253

12345678910111213

1516171819202122232425

26

2930313233343536373839

434445464748495051

52 14

28

414240

27

PT6324-Q

IC1101

CLK

DIN

STB

DOUT

K1

K2

OSC

GND

VDD

SG1/KS1

SG2/KS2

SG3/KS3

SG4/KS4

SG6/KS6

SG7/KS7

SG8/KS8

SG9/KS9

SG10/KS10

SG11/KS11

SG12/KS12

SG13/KS13

SG14/KS14

SG15/KS15

SG16/KS16

SG17/KS17

SG18/KS18

SG20/KS20 SG21/KS21 SG22/KS22 SG23/KS23

SG24/KS24 GR1 GR2 GR3 GR4 GR5 GR6

GR7

GR10

GR11

GR12

GR13

GR14

GR15

GR16

VEE

VDD

GND

SG5/KS5

SG19/KS19

GR8

GR9

123

13

12910

7

14

222320

648

15

1921181716

5

11

23P

CN1105

SEL B

SEL A

LED GND

EVER +3.3V

STBY LED

LED3

LED2

LED1

SIRCS

FL-CLK

FL-DATA

FL-CS

VOL

AD KEY2

AD KEY1

AD KEY0

FL+3.3V

DGND

VF

-VG

VF

USB LED CTRL

SW/USB_LED

TP0026

TP0027

D1107

50V

22

C1147

SLI-325URT31WR

D1101

1k

R1161

MAZ8082GMLS0

D1102

50V

2.2

C1137

D1110 D1109 D1108 D1106 D1105

S1

S2

S3

S4

S5

S6

S7

S8

S9

S10

S12

S13

S14

S15

S16

S17

S18

S19

S20

SW_LED

LED_VOL1.2

LED_VOL3.4

LED_VOL5.6

G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14

FL_CLK

S1

S2

S6

S7

S8

S9

S10

S11

S12

S13

S3S4S5

G2 G3 G4 G5 G6

G7G8G9

G10

G11

G12

G13

G14

S11

S14

S15

S16

S17

S18

S19

S20

AD_KEY1

AD_KEY0

AD_KEY1

AD_KEY2

VOL

FL_CS

FL_DATA

FL_CLK

SIRCS

LED_VOL5.6

LED_VOL3.4

LED_VOL1.2

SW_LED

G1

AD_KEY2

VOL

FL_DATA

FL_CS

SIRCS

AD_KEY0

S1110 S1111 S1112 S1113 S1114 S1115 S1116 S1117 S1118 S1119

IC1101

FLUORESCENT INDICATOR

IC1100

REMOTE CONTROL

FLUORESCENT INDICATOR TUBE

RECEIVER

LED DRIVELED DRIVELED DRIVE

LED DRIVELED DRIVE

D1105-1110

1L0351V22F0MIT01

STREAM

/

STANDBY

/

MODE

METER

DISPLAY OPTIONS GROOVE

OPEN/CLOSE

DISC SKIP/

EX-CHANGE

USB B

TUNER/

BAND

TAPE/PCCD

TUNING -

USB

TUNING +

SUBWOOFER

TUBE DRIVER

680

R1189

680

R1190

132

ENTER RETURNUSB A DISC 3 DISC 2 DISC 1

REC TO

USB B

S1124S1128 S1127 S1125S1126 S1130S1132 S1131 S1129S1133

PRESET

EQ

ERASE

SUBWOOFER

EQ BAND/

SURROUND

REC

TIMER

S1100 S1102 S1103S1101 S1109S1108 S1107 S1106 S1104S1105

USB

BOARD

NO1000

(Page 35)

L

2.9 0.8 2.6 1.8 3.3

-30.6

-26.4

-32.7

-26.3

-22.1

-24.2

-20.0

-24.3

-29.8

-32.7

-26.5

-31.0

-33.2

3.3

-24.4

-32.9

-30.8

-26.5

-22.3

-26.5

-24.4

-31.0

3.5

6.0

0.1

6.0(2.1)<<2.1>>

0.1(0.5)

<<0.5>>

7.4

0

7.5

0

8.3

0

IC B/D

- +

HCD-GTR88

2424

6-7. PRINTED WIRING BOARD - DMB19 Board -

Note:

When IC102 cannot exchange with single. When this part

is damaged, exchange the entire mounted board.

•

: Uses unleaded solder.

• See page 21 for Circuit Boards Location.

1 2 3 4 5 6 7 8 9 10 11 14 1512 13

A

B

C

D

E

F

G

H

I

J

DMB19 BOARD (COMPONENT SIDE) DMB19 BOARD (CONDUCTOR SIDE)

1-881-688-

21

(21)

1-881-688-

21

(21)

1

12

13

48

24

25

36

37

IC201

IC4601

IC4602

IC107

R1177

C144

C156

IC111

R4833

R4834

C4603

C4606

C4602

R4606

R4605

R4602

R4608

R4609

R4611

C4623

C4622

C502

C4626

R521

R606

IO

FL603

FB603

C215

R233

C212

C214

R226

C211

R220

C233

R212

R225

R221

C209

R223

C219

C224

R608

R234

R214

C205

R208

R215

C206

R209

C203

R204

R205

R213

R216

R207

R206

C208

R210

E1

E

E2

R115

R112

R113

R120

R121

R118

R109

R110

R123

R256

R124

Q103

Q102

S2

S1

Q101

R116

R117

R111

R108

R1129

C149

FB108

C179

C180

C191

C181

R122

C1505

R125

C155

C125

R1255

C111

C115

C116

C119

C168

C169

R1101

C172

R1150

C150

C175

C151

R1193

R1191

R1194

R1192

R1252

C102

R219

C213

R224

C210

R136

R1184

C195

C192

C193

C154

C145

C146

C127

C126

C108

C1506

C198

C183 R1178

C188

R4835

D005

R1261

R133

C197

R1250

FB1268 FB1267

R1262

R101

C1507

C199

C221

C222

C1512

C1513

R1256

R630

R1278

R1279

R1280

IC102

X101

IC101

1

5

1

9

CN601

CN101

CN4602

R103

C603

C1504

C604

RB105

R605

CN1105

CN105

C105

RB106

RB107

R107

RB108

C4608

C608

1

13

R1110

RB111

C112

R1114

C217

C118

R1121

R1123

C124

R142

R246

R247

R1248

R1249

C152

C153

R156

C160

R1168

C190

CN201

C623

D004

C622

D003

D002

C621

D001

C620

C611

R231

R230 R232

C216

C101

R102

C602

RB112

RB113

RB114

RB115

R1263

R1151

R1152

R1269

R114

C106

C113

CN1106

FB1264

R4837

R4838

IC104

R1277

R1276

ET004

FB1265 FB1266

ET001

ET002

ET003

R4601

C218

C220

C1514

C1515

C1516

R1281

R1282

R1283

MAIN BOARD

CN090

(Page 30)

S

MAIN BOARD

CN680

(Page 30)

R

DEVICE, OPTICAL

KHM-313CAB/C2RP

HUB BOARD

CN1500

(Page 41)

Q

DEVICE, OPTICAL

KHM-313CAB/C2RP

FOR TEST

MAIN BOARD

CN690

(Page 30)

T

FB607