Aiwa XR-HG7MD Service Manual Download

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IC BLOCK DIAGRAM-1

SCHEMATIC DIAGRAM-5 (MAIN 3/3 SECTION)

IC, LA1844L-A

IC, LC72131D

IC, BU1920FS

GND

MAIN C. B 3/3(TUNER SECTION)

L801

DC BALANCE/MONO

DISTORTION ADJ.

L802

AM IF ADJ.

L941,TC942

LW TRACKING ADJ.

L942

LW VT ADJ.

SIGNAL

: FM/PB
: AM

TU-ON

VCC

TUNER VM

TUNER-R

TUNER-L

STBY

10C

11C

12C

13C

14C

15C

16C

17C

11.1

11.7

ON:8.7
OFF:0

7.8

BUFFR

TU-ON

R986

2.2k 1/8W

1/8W

5.5

1/8W

TUNER

TUNER VM

ON:8
OFF:0

TUNER-L

TUNER-R

TP4

1/8W

TP3

TP3,4

DC BALANCE

DECODER

FM DET-N

FM IF AMP

FM BAND SW

7.8

TP1

AM PACK2

L951(1/3)

MW TRACKING

ADJ.

Ω

(COAXIAL)

MW/LW

LOOP

L941

ANT-LW

252K

TC942

30p

LW BAND

L951(2/3)

AM PACK2

L951(3/3)

AM PACK2

L942

OSC LW

856k

Q953

2SK360 E

MW RF AMP

ON:8
OFF:0

ON:8,OFF:0

MW BAND SW

Q952

CSD1306 E

LW BAND SW

TO MAIN C.B 1/3(FUNCTION/POWER SUPPLY SECTION)1C-17C

100k

8TH SWITCHED
CAPACITOR FILTER

PLL
57kHz
RDS/ARI

PLL

1187.5HZ

REFERENCE
CLOCK

BI-PHASE
DECODER

TEST CIRCUIT

DIFFERENTIAL
DECODER

CMP

ARI

RCLK

QUAR

RDATA

T57

VSS

VDD

Vref

MUX

RESET

Summary of Contents for XR-HG7MD

Page 1: ...SM AZG TD XR HG7MD EZ K S M Code No 09 008 349 4R1 If requiring information about the CD mechanism see Service Manual of AZG 1 S M Code No 09 001 335 3NE If requiring information about the MD mechanism see Service Manual of AZG T S M Code No 09 007 348 1N2 SPEAKER SX WNH81 R E V I S I O N This Service Manual is the Revision Publishing and replaces Simple Manual S M Code No 09 008 349 4T1 ...

Page 2: ...d flutter Unmeasurable MD recorder section Scanningmethod Non contact optical scanner Semiconductor laser application Recording system Magnetic polarity modulation overwrite system Rotation speed Approx 400 900 rpm CLV Sampling frequency 44 1 kHz No of channels Stereo 2 channels Monaural 1 channel A D D A converter 1 bit Frequency 20 to 20000 Hz 0 5 1 5 dB Wow Flutter Unmeasurable Cassette deck se...

Page 3: ...ue ceux spécifiés peut entraîner une dangereuse exposition aux radiations ADVARSEL Usynlig laserståling ved åbning når sikkerhedsafbrydereer ude af funktion Undgå udsættelse for stråling This Compact Disc player is classified as a CLASS 1 LASER product The CLASS 1 LASER PRODUCT label is located on the rear exterior This set employs laser Therefore be sure to follow carefully the instructions below...

Page 4: ...ws BVT2 3 10 A Turn over the unit and remove the CABI BOTTOM Remove the two FFCs 13P and 6P the CD block from the hook of the CABI BOTTOM Loosen the two screws QT2 3 12 B of the AZG 1 CABI FR The screws are used at the both sides NOTE ON BEFORE STARTING REPAIR A A B ...

Page 5: ... arrow The hooks are used at the both sides Pull the CABI BOTTOM up to the diagonally top right and remove it Lay down the unit and remove the 3ZG 2 mechanism Extend the 3ZG 2 mechanism using the respective extension jigs Service position HOOK ...

Page 6: ...6 TEST MODE CD ...

Page 7: ...ion ALL SVoFF Change from the this mode to other modes When the STOP button is pressed in each mode the display returns to ALL SVoFF 4 1 Audio System Output Check The signal of 1 kHz 17 dBV 140 mV can be checked using the MD board AOUTL AOUTR in the test mode 5 Checking the Sled Feed Operation 1 Press the CD 1MD REC button to load the mechanism 2 Press the F SKIP button in the ALL SVoFF state to m...

Page 8: ...press the STOP button to return the display to ALL SVoFF 9 2 Checking the Focus Search and Spindle Kick 2 1 When the PLAY button is pressed in the ALL SVoFF state without inserting a disk the search and spindle kick are performed at the same time Then FOCUS SCH is displayed 2 After checking press the STOP button to return the display to ALL SVoFF 9 3 Checking the Focus Servo 1 Insert a disk 2 Pres...

Page 9: ... LASER 3 Adjust LASER 11 using the B SKIP and F SKIP buttons and press the ENTER button 4 Measure the pickup laser output using the laser power meter and check that it is about 0 68mW 5 After adjustment press the STOP button to change the display to ALL SVoFF 2 2 Record Laser Power Adjustment 1 Press the EDIT button three times in the ALL SVoFF state to change the display to LA WRITE 2 Press the P...

Page 10: ...e within the range shown below hexadecimal I 14 to 19 E 09 to 15 5 Press the DISPLAY button once again Confirm that the values of f t s33 are within the range shown below hexadecimal f 1A to 45 t 0C to 3F s 33 0C to 3F 6 After adjustment press the STOP button to return the display to ALL SVoFF 4 Playback Error Rate Check PIT DISC Test point Check the test point on the display Test disk TSYS 1 or e...

Page 11: ...enter the ALL SV ON state the display is in the state of the address indication Press the DISPLAY button in or after cluster 600 Then confirm that the values of underlined portion is 0030 or lower 6 After checking press the STOP button to return the display to ALL SVoFF 6 How to Initialize the EEP ROM Do the following procedure to set the adjustment value of the EEP ROM to the default standard val...

Page 12: ...ZG 26 1 2 DISASSEMBLY INSTRUCTION Removing the MD Block 1 Remove the PANEL REAR in advance 2 Remove the two screws 3 Remove the two screws 4 Release the hook 1 and remove the AZG 26 in the order of 2 3 5 Remove the four screws and remove the AZG 21 from the HLDR MD ...

Page 13: ...D D from the PLATE SHLD REAR Remove the PLATE SHLD REAR 2 Remove the four screws U 2 2 6 6 E from the PLATE SHLD TOP Remove the PLATE SHLD TOP PLATE SHLD REAR PLATE SHLD TOP E E E D D E PLATE SHLD BOTTOM F F F F 3 Remove the four screws UT2 2 6 6 GLD F and remove the PLATE SHLD BOTTOM ...

Page 14: ...he MD block in the service position as follows Connect the MD block with the interface board using the extension FFC as shown to place the MD block into the service position FFC 8P 1 0 SV J00 043 010 FFC 14P 1 0 SV J00 044 010 FFC 14P 1 0 FFC 8P 1 0 ...

Page 15: ...WHL JT the gear shown by the arrow below counterclockwise to move the elevator to the top position Note If the PANEL SHLD BOTTOM is not removed the elevator cannot be removed WORM WHL JT FF CABLE 9P 1 0 2 Remove the FF CABLE 9P 1 0 from the LOAD C B ...

Page 16: ...the elevator from the guide hole of the CHAS ASSY SHLD Remove the other end of the shaft and tilt the elevator as shown below While tilting the elevator short the shorting land SHAFT CHAS ASSY SHLD 4 Remove the PICK UP FFC and the MECHA C B FFC then remove the elevator block ...

Page 17: ... block 1 Remove the screw UT2 2 6 6 GLD G and the screw VTT 2 4 H Then remove the HLDR MECHA SUB G H HLDR MECHA SUB I I I I ZZG 1 HLDR ASSY MECHA 2 Remove the four screws S SCREW MD T I and remove the ZZG 1 from the HLDR ASSY MECHA ...

Page 18: ... MFZN2C B Remove the HEAD OWH RF325 74A Re assembling Align the axis of the PLATE ASSY SLIDE L with the arrow mark of the CAM LOAD HEAD OWH RF325 74A PLATE ASSY SLIDE L PLATE SLIDE R CAM LOAD A A B a b b c BOSS 7ZG 3 A1 4 Move the 7ZG 3 A1 in the direction of a While pressing the BOSS in the direction of b remove the 7ZG 3 A1 in the direction of c ...

Page 19: ...e the CAM LOAD in the direction of the arrow Re assembling Move the LEVER ASSY CAM in the direction of the arrow mark as much as it can be moved Move the reference hole of the CAM LOAD closer to the axis of the LEVER SW H as close as possible Align the CAM LOAD with the gear of the GEAR IDLER2 ...

Page 20: ...g the DECK Block 1 Remove the MD block and PANEL DECK in advance 2 Remove the four screws and remove the PT PT CLOSE OPEN 3 Remove the four screws and remove the AZM 1 To open or close the tray rotate the PULLEY ...

Page 21: ...2012 C0060 87 010 403 080 CAP E 3 3 50 M 11L SME C0080 87 010 401 080 CAP E 1 50 M 11L SME C0081 87 010 374 080 CAP E 47 10 M 11L SME C0082 87 010 260 080 CAP E 47 25 M 11L SME C0104 87 010 196 080 C CAP S 0 1 25 Z F C2012 C0105 87 010 196 080 C CAP S 0 1 25 Z F C2012 C0111 87 010 545 080 CAP E 0 22 50 M 11L SME C0112 87 010 545 080 CAP E 0 22 50 M 11L SME C0113 87 010 545 080 CAP E 0 22 50 M 11L ...

Page 22: ... 11L SME C0808 87 010 401 080 CAP E 1 50 M 11L SME C0809 87 010 401 080 CAP E 1 50 M 11L SME C0810 87 010 196 080 C CAP S 0 1 25 Z F C2012 C0811 87 010 403 080 CAP E 3 3 50 M 11L SME C0812 87 010 403 080 CAP E 3 3 50 M 11L SME C0814 87 010 197 080 C CAP S 0 01 25 K B C2012 C0815 87 010 403 080 CAP E 3 3 50 M 11L SME C0816 87 010 403 080 CAP E 3 3 50 M 11L SME C0818 87 010 180 080 C CAP S 1500P 50 ...

Page 23: ...81 87 010 197 080 C CAP S 0 01 25 K B C2012 C0184 87 010 197 080 C CAP S 0 01 25 K B C2012 C0185 87 010 182 080 C CAP S 2200P 50 K B C2012 C0186 87 010 197 080 C CAP S 0 01 25 K B C2012 C0187 87 010 182 080 C CAP S 2200P 50 K B C2012 C0191 87 012 368 080 C CAP S 0 1 50 Z F C0281 87 010 060 040 CAP E 100 16 M 7L SRA C0401 87 010 560 040 CAP E 10 50 M 5L MA C0402 87 010 196 080 C CAP S 0 1 25 Z F C2...

Page 24: ...1 011 010 CONN 13P H BLK TAC L13P A3 CNA0101 8A NF8 656 010 CONN ASSY 5P TID A 400 J0201 87 A61 148 010 JACK PIN 4P R W BLUE L0251 87 A50 610 010 COIL 1UH K MDEC L0252 87 A50 610 010 COIL 1UH K MDEC R0129 87 A00 257 080 RES M F 0 15 1W J R0130 87 A00 257 080 RES M F 0 15 1W J R0231 87 A00 258 080 RES M F 0 22 1W J R0232 87 A00 258 080 RES M F 0 22 1W J WH0101 87 A90 459 010 HLDR WIRE 2 5 5P Q SURR...

Page 25: ...R1 87 024 581 010 SFR 3 3K DIA6V K0A SOL2 82 ZM1 634 010 SOL ASSY 23K SW2 87 A90 248 010 SW MICRO ESE11SH2CXQ SW3 87 A90 248 010 SW MICRO ESE11SH2CXQ REF NO PART NO KANRI DESCRIPTION NO TRANSISTOR ILLUSTRATION B E C 2SA1235 2SC2714 2SC3052 CMBT5401 CMBT5551 CSD1306 KRA102S RT1N141C RT1N144C RT1P141C RT1P144C RT1P441C D G S 2SK360 G S D 2SJ461 2SK2158 E C B CD1585 CSA952 CSA1585 CSC4115 CSD655 KTA1...

Page 26: ...26 1 2 3 4 5 6 7 A B C D E F G H I J WIRING 1 AMP 1F C B JW141 JW142 ...

Page 27: ...OWER SUPPLY SECTION CN001 TP PT C B CN002 21 3 22 7 VCC VCC GND 11 1 POWER AMP POWER AMP 28 5 28 5 Q401 402 DC DET 43 6 28 5 28 5 43 6 11 1 AMP 1F C B 21 3 22 7 THERMAL PROTECTOR OVERLOAD DET M F M F 43 6 21 3 22 7 43 6 Q101 102 OVERLOAD DET Q151 OVERLOAD CUT OFF H H 1 8 Q204 THERMAL PROTECTOR L L R R SPEAKERS HIGH FREQ SURROUND SPEAKERS SIGNAL PB ...

Page 28: ...9 OFF 0 ON 0 OFF 3 8 ON 4 5 OFF 4 2 AC33 7 21 3 6131 50 50 22 7 Q005 006 CONST VOLT REG Q003 004 VM REG 12 2SC3052 F Q008 2SA1235 F Q061 2SA1235 F Q060 2SC3052 F HOLD SW Q001 002 VF REG 39 1 2 9 12 4 7 4 8 22 7 12 Q062 2SC3052 F Q008 POWER REG Q009 VCC VOLTAGE REG Q113 2SA1235 F MUTE DRIVER Q607 609 VDD REG Q064 2SC3052 F Q063 2SA1235 F Q061 062 AC DET Q063 064 DC DET Q081 084 FAN DRIVER TP9 TP8 Q...

Page 29: ... 1 8W 1 8W 1B 2B 3B 4B 5B 7B 6B 8B 9B 10B 11B 12B 13B 14B 15B TO MAIN C B 1 3 FUNCTION POWER SUPPLY SECTION 1B 15B 11 1 5 5 5 5 BEAT SW 5 5 ON AC27 9 OFF 0 ON 4 5 OFF 0 1 8 ON 0 OFF 10 5 Q358 359 BIAS OSC Q357 361 BIAS OSC SW 12 RPH MAIN C B 2 3 DECK SECTION TAPE MECHANISM AZM 1 GND Q SURROUND C B SIGNAL PB W W 11 1 9 4 4 7 TO MAIN C B 1 3 FUNCTION POWER SUPPLY SECTION CN607 ...

Page 30: ...FF 0 12 TUNER L TUNER R TP4 1 8W TP3 TP3 4 DC BALANCE DECODER FM DET N FM IF AMP FM BAND SW 7 8 TP1 AM PACK2 L951 1 3 MW TRACKING ADJ FM 75Ω COAXIAL MW LW LOOP L941 ANT LW 252K TC942 30p 1 2 3 6 5 4 LW BAND SW D G L951 2 3 AM PACK2 L951 3 3 AM PACK2 L942 OSC LW 856k Q953 2SK360 E MW RF AMP ON 8 OFF 0 ON 8 OFF 0 MW BAND SW Q952 CSD1306 E LW BAND SW TO MAIN C B 1 3 FUNCTION POWER SUPPLY SECTION 1C 1...

Page 31: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J 36 35 WIRING 2 MAIN C B R991 R993 R995 JR835 JR808 1 3 6 4 TC942 16 9 11 13 1 3 5 8 FB301 JW620 JW046 JR614 JR613 ...

Page 32: ...SC ADJ 5 2 5 2 33k 1 8W 5 SPECTRUM ANALYZER 7 S348 352 371 383 EVQ11G04M S301 310 321 330 341 347 EVQ11G04M CD3 CD2 CD1 FF REW F PLAY R PLAY STOP PAUSE MD DOOR MOTOR MD DOOR MD DOOR C B ON 0 OFF 4 7 12 CLOSE 4 1 OPEN 1 1 CLOSE 1 1 OPEN 4 5 Q411 414 MD WINDOW DRIVER 12 12 LED DRIVER LED DRIVER LED DRIVER 5 2 5 2 5 2 5 2 1 2 3 4 5 6 7 TUNE FL G13 FL P28 M JOG V JOG VDD GND W1 MD3 MD2 MD1 EX TAPE TAP...

Page 33: ... B C D E F G H I J WIRING 3 DECK C B TUNER C B Q004 005 CIRCUIT CANCEL SW 5 Q001 003 TUNE SW GND W1 TO FRONT C B W1 CN351 251 GRN RED 8 RELAY C B DECK C B 1 3 5 2 4 1 5 4 M BRN BLK S1 CN1 S2 M1 LOADING MOTOR FC252 FROM FRONT C B CN252 MOTOR 1 C B SWITCH C B ...

Page 34: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J 42 41 WIRING 4 FRONT C B Top View 1 A B C D E F G H I J K S T U V 2 3 4 5 6 7 8 9 10 11 12 13 14 15 W1 1 2 3 4 5 6 7 TP7 ...

Page 35: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J 44 43 WIRING 5 FRONT C B Bottom View A B C D E F G H I J K S T U V 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 ...

Page 36: ...ER SUPPLY SECTION CNA001 WH001 TO AMP 1F C B CNA101 WH101 GND PT C B AC230V 50Hz C014 0 1 3 3 50 470 25 1SS133 Q001 002 RESET 120k 120k PT SUB ANF 8 E AC10 3 5 6k 3 9k ON 11 2 SDT S 112LMR PT ANF 8EZ 82k 82k 2200 50 2200 50 11 7 AC5 AC43 1 AC33 7 AC65 2 68k 68k 1 4w 3300 65 3300 65 1 4w 43 6 43 6 28 5 28 5 G5SBA60L ...

Page 37: ...ndow sw input CD DSP control serial CLOCK output During CD FUNC SENS serial data input During TUNER FUNC RDS serial clock input CD control SUBQ serial clock output MD control ARDY input MD control SREQ output MD control MREQ input DECK MECHA plunger control output System mute control output DECK MECHA FRAME sw input FRONT MAIN IC control DATA output FRONT MAIN IC control CLK output FRONT IC contro...

Page 38: ... FL segment P31 output FL segment P30 output FL segment P29 output FL segment P28 output FL segment P27 output FL segment P26 output FL segment P25 output FL segment P24 output DECK cam operation detection SW input L ON FL segment P23 output DECK reel rotation detection signal input FL segment P22 output DECK cassette existence detection FL segment P21 output DECK side A recording able enable dete...

Page 39: ...um analyser BPF switching control A output FL segment P5 output Spectrum analyser BPF switching control B output FL segment P4 output Spectrum analyser BPF switching control C output FL segment P3 output FL segment P2 output FL segment P1 output FL grid G13 output FL grid G12 output FL grid G11 output FL grid G10 output FL grid G9 output FL grid G8 output FL grid G7 output FL grid G6 output FL gri...

Page 40: ...50 IC BLOCK DIAGRAM 2 IC BD3876KS2 ...

Page 41: ...51 IC BA7762AFS IC M61506FP ...

Page 42: ...52 IC BU2099FV IC MM1454XFBE 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 BIAS VCC RIN PNR B Q DET QF6 ROUT LOUT GND LIN VREF QF1 QF2 QF3 QF4 QF5 QSurround ...

Page 43: ... SFR1 so that the frequency counter reads 3000Hz 5Hz and 45Hz REV with respect to forward speed 11 Head Azimuth Adjustment Settings Test tape TTA 330 Test point TP8 Lch TP9 Rch Adjustment location Head azimuth adjustment screw Method Play back FWD the 8kHz signal of the test tape and adjust screw so that the output becomes maximum Next perform on REV PLAY mode 12 PB Frequency Response Check Settin...

Page 44: ... B B B B A G G B B B B B A B B B FL 1 2 3 4 5 5 6 6 8 7 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 34 31 35 36 37 39 40 41 42 43 44 45 47 PLATE SHLD 85 58 2T 46 49 50 51 52 53 38 PLATE PT 56 55 54 51 48 32 33 30 HT SINK AZG 1 AZG T AZM 1 CHAS MAIN PWB PWB PWB PWB PWB PWB PWB PWB ...

Page 45: ...DB6 009 010 WINDOW PLAY 26 8A DB6 226 010 HLDR PLAY 27 8A DB6 028 010 KEY ASSY PLAY 28 8Z NB6 213 010 GEAR RELAY 29 8Z NB6 215 110 LEVER SW 30 8Z NB6 212 010 GEAR WINDOW 31 8A DB6 215 010 HLDR MECHA MD 32 84 ZG1 267 010 PULLEY LOAD MO 8 33 8Z NB6 216 010 BELT SQ1 4 99 2 34 8Z NB6 214 010 PULLEY RELAY 35 8A DB6 225 010 GUIDE CD 36 8A DB6 224 010 GUIDE PLAY 37 87 NF5 203 110 GUIDE FL 38 8A DB6 051 0...

Page 46: ... ZM1 344 210 0E LVR ASSY PINCH R2 28 82 ZM1 259 210 0E SPR T PINCH R 29 82 ZM1 240 110 0E LVR REC 30 82 ZM1 634 010 1B SOL ASSY 23K 31 82 ZM1 255 310 0E SPR E LVR DIR 32 82 ZM1 221 310 0E GEAR CAM 33 82 ZM1 227 310 0E LVR TRIG 34 82 ZM1 224 410 0E LVR FR 35 82 ZM1 305 210 0E SPR E TRIG 2 36 80 ZM6 243 010 0E SH 1 75 3 6 0 5 SLT 37 82 ZM1 223 010 0E GEAR PLAY 38 82 ZM1 322 010 0E SPR T FR 60 39 82 ...

Page 47: ...7 7 9 19 4 6 20 5 21 21 24 25 26 29 29 27 28 3 2 RELAY C B HLDR WIRE 3 SHAFT REEL 18 B B A a b a b 31 38 39 40 32 34 33 35 43 45 41 41 37 44 HLDR IC HLDR MOTOR L DECK C B 30 49 47 48 46 c c E 52 51 CUSH G DIA 3 7 9 3 2 PLATE SHLD 36 SH 1 63 3 2 0 5 SLT 50 42 22 8 22 8 C C C D D G H F ...

Page 48: ...ATE ASSY CLAMP 12 8A ZM1 204 010 1C TRAY CASSETTE 13 87 045 305 010 1F MOTOR RF 500TB DC 5V 2MA 14 86 ZL1 210 010 0E PULLEY MOT 15 8Z ZG4 614 010 1A F CABLE 2P 130MM LED 16 8A ZM1 202 010 1E BASE 17 86 ZL1 214 010 0E SPR P CASS 18 8A ZM1 207 010 0E GEAR FRAME 19 8A ZM1 213 010 0E GEAR PULLEY A 87 067 660 010 0E TAPPING SCREW BVT2 3 8 B 88 ZG5 302 010 0E S SCREW 8ZG5 2 4 W O C 88 ZG5 317 010 0E S S...

Page 49: ...ype 1 Insert a flat bladed screwdriver into the position indicated by the arrows and remove the panel Remove the screws of each speaker unit and then remove the speaker units Type 2 Remove the grill frame and four pieces of rubber caps by pulling out with a flat bladed screwdriver Remove the screws from hole where installed rubber caps Insert a flat bladed screwdriver into the position indicated b...

Page 50: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 8710 JAPAN TEL 03 3827 3111 92004 Printed in Singapore ...

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