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Sony HCD-GT22, Schematic Diagram

The Sony HCD-GT22 service manual is essential for troubleshooting and repairing this outstanding audio system. Explore its comprehensive guide filled with step-by-step instructions, diagrams, and insights to optimize your user experience. Download the manual for free at manualshive.com for a hassle-free solution to maintaining and enjoying this top-notch product.

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HCD-GT22/GT44/GT55

51

51

HCD-GT22/GT44/GT55

7-27. SCHEMATIC  DIAGRAM  – PANEL Section –

•

 See page 36 for Waveforms.    

•

 See page 58 for IC Block Diagrams.

R

BOARD

KEY RIGHT

S

BOARD

KEY LEFT

H

(1/4)

BOARD

MAIN

CN901

IC B/D

41

CN615

3.3

3.3

-24

-24

-25.5

-23.7

-20

-23.7

-25.5

-16.3

-21.8

-23.7

-23.8

-23.8

-26

3.3

1.7

1.7

3

2.7

2.6

3.2

-24

-24

-24

-24

-24

-24

-24

-24

-24

-24

-24

-24

-23.7

-16.4

-21.8

-25.5

-23.7

-18.2

-16.4

-20

-20

-16.4

-18.2

-25.5

0

7.6

0

7.6

0.7

0.1

0.1

0.7

0.1

0.7

0.1

0.7

7.6

0

-24.3

3.3

-23.9

3.3

-24.3

-23.9

3.3

-24.3

-23.9

3.3

-24.3

-23.9

3.3

-24.3

-23.9

3.3

-24.3

-23.9

3.3

-24.3

-23.9

3.3

-24.3

-23.9

3.3

-24.3

-23.9

3.3

-24.3

-23.9

3.3

-24.3

-23.9

3.3

-24.3

-23.9

-24.3

-24.3

1

2

3

4

5

6

7

8

9

10 11 12 13

15

16

17

18

19

20

21

22

23

24

25

26

29

30

31

32

33

34

35

36

37

38

39

43

44

45

46

47

48

49

50

51

52

14

28

41

42

40

27

NJU3427FA2

IC701

NC

DR0(T0)

DR1(T1)

DR2(T2)

DR3(T3)

DR4(T4)

DR5(T5)

DR6(T6)

DR7(T7)

DR8(T8)

DR9(T9)

DR10

(T10)

DR11

(T11)

DR12(T12)

DR13(T13)

DR14(T14)

DR15(T15)

DR16(S19)

DR17(S18)

DR18(S17)

DR19(S16)

DR20(S15)

DR21(S14)

DR22
(S13)

DR23
(S12)

DR24(S11)

DR26(S9)

DR27(S8)

DR28(S7)

DR29(S6)

DR30(S5)

DR31(S4)

DR32(S3)

DR33(S2)

DR34(S1)

DR35(S0)

NC

VFDP

NC

VSS

XT

XTb

NC

SCK

SI

NC

CSb

RSTb

NC

DR25(S10)

NC

VDD

∗

∗

∗

∗

∗

∗

2SC3052EF-T1-LEF

Q601

2SC3052EF-T1-LEF

Q602

2SC3052EF-T1-LEF

Q603

2SC3052EF-T1-LEF

Q604

2SC3052EF-T1-LEF

Q605

2SC3052EF-T1-LEF

Q606

4.7k

R705

100

R704

100

R703

100

R702

100

R701

1000p

C704

1000p

C703

1000p

C702

C701

1000p

100p

C705

10V

47

C707

0.1

C706

50V

2.2

C731

50V

2.2

C732

47k

R711

47k

R712

1.5k

R713

1.5k

R714

10k

R681

10k

R682

10k

R683

10k

R684

10k

R685

10k

R686

1k

R661

1k

R671

1k

R662

1k

R672

1k

R663

1k

R673

1k

R664

1k

R674

1k

R665

1k

R675

1k

R666

1k

R676

S611

S612

S613

S614

S615

S616

330

R611

470

R612

680

R613

1k

R614

1.5k

R615

S601

330

R601

2SC3052EF-T1-LEF

Q607

10k

R687

22

R715

22

R716

50V

22

C709

2SC3052EF-T1-LEF

Q701

47k

R721

47k

R722

47k

R723

47k

R724

47k

R725

47k

R726

47k

R727

47k

R728

47k

R729

47k

R730

47k

R731

47k

R732

2SC3052EF-T1-LEF

Q702

2SC3052EF-T1-LEF

Q703

2SC3052EF-T1-LEF

Q704

2SC3052EF-T1-LEF

Q705

2SC3052EF-T1-LEF

Q706

2SC3052EF-T1-LEF

Q707

2SC3052EF-T1-LEF

Q708

2SC3052EF-T1-LEF

Q709

2SC3052EF-T1-LEF

Q710

2SC3052EF-T1-LEF

Q711

2SC3052EF-T1-LEF

Q712

47k

R734

47k

R733

2SC3052EF-T1-LEF

Q713

2SC3052EF-T1-LEF

Q714

47k

R741

47k

R742

47k

R743

47k

R744

47k

R745

47k

R746

47k

R747

47k

R748

47k

R749

47k

R750

47k

R751

47k

R752

47k

R753

47k

R754

S626

S625

S622

S621

S623

S624

S627

2.2k

R626

1

7

8

9

10 11 12

5

6

14

19

18

17

13

16

20

15

23 24

21 22

42

44

43

40

37

39

38

41

46

48

47

45

53

49 50

54

2

FL701

1k

R624

680

R623

470

R622

330

R621

1.5k

R625

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

27P

CN601

LED-GND

LED+9V

VFD-CLK

VFD-DATA

SIRCS

STBY-LED

SW-LED

STREAM6

STREAM5

STREAM4

STREAM3

STREAM2

STREAM1

VFD-RESET

VFD-CS

VOL

JOG

KEY3

KEY2

KEY1

KEY0

VDD+3.3V

VREF

D-GND

-VFL

VF

VF

3.3k

R755

3.3k

R756

3.3k

R757

3.3k

R758

0.1

C708

1

2

3

CN605

D-GND

KEY3

KEY

P20

P19

P18

P17

P16

P15

P14

P1

P2

P3

P4

P5

P6

P7

P8

P9

P10

P11

P12

P11

P12

P14

P17

P18

P19

P20

ST1

CLK

DATA

CS

RESET

STBY

SIRCS

JOG

VOL

RESET

ST1

ST2

ST3

ST4

ST5

ST6

SW-LED

STBY

SIRCS

CLK

1G

2G

3G

4G

5G

6G

7G

8G

9G

10G

11G

12G

P13

SW-LED-OUT

P16

P15

P13

P10

P9

P8

P7

P6

P5

P4

P3

P2

P1

8G

9G

10G

11G

12G

13G

DATA

CS

KEY3

14G

ST4

ST2

ST3

SW-LED

ST6

VOL

13G

ST5

KEY0

LED+9V

1G

2G

3G

4G

5G

6G

7G

14G

D-GND

D-GND

AVREF

AVREF

KEY3

PANEL BOARD

FLUORESCENT

IC701

A

10

1

2

J

H

B

13

11

L

C

7

8

I

14

F

9

6

K

4

15

16

3

G

D

5

E

12

STBY-LED

SIRCS

INDICATOR TUBE DRIVER

Q701-714

GRID DRIVE

(STREME)

D601-604

1L434FV22DOTDF01(GT22/GT44)

∗

D601-606

1L434B22COCDT2(GT55)

LED DRIVE

Q601-607

ILLUMINATION

ERASE

PRESET

EG

GROOVE

SURROUND

EQ BAND

DISPLAY

ENTER

RETURN

JOG

VOL

1

4

(GT44/GT55)

1

7

-

+

TUNING-

FLUORESCENT INDICATOR TUBE

D601

D602

D603

D604

D605

D606

PLAY MODE/

TUNING MODE

(GT22/GT44)

(GT55)

18

17

0.01

C651

0.01

C652

0.01

C653

0.01

C654

22k

R761

22k

R762

47k

R766

47k

R768

100k

R765

22k

R764

22k

R763

100k

R767

S652

1

2

3

S651

1

2

3

VOLUME BOARD

OPERATION

DIAL

VOLUME

MASTER

ROTARY ENCODER

1

4

VOL

JOG

D-GND

AVREF

ROTARY ENCODER

3P

19

JOG

(Page 53)

(Page

38)

(Page 53)

Summary of Contents for HCD-GT22

Page 1: ...R104 C123 C122 C139 C150 R136 R135 R134 C112 C108 R119 R118 C136 C107 R130 R144 C144 C147 C140 C137 C141 C142 C106 R302 C306 C303 C302 R405 R402 R408 R414 C207 C152 C206 IC401 1M 1M 100 10V 2 2 0 10k 2 2 100 100 100 100 100 100 100 100 100k 100k 100k 100k 100k 100 0 100 2SA2119K 100k 100 10V 100 100 16P 220 220 10V 47k 10k 470k 1k 47k 22k 47k 10k 0 0 100k 0 TK63115SCL G GT 0 1 1 0 001 0 1 470p 470...

Page 2: ... 100 10 50V 1k 2P 4P 5P 5P 3P RPI 576 2P 2P 0 1 4 7k 3P DTC114ESA BA6956AN BA6956AN 12k 10k 13P 100 16V 390 R N F R N F TM 2 GND TM 1 SENS IN SENS OUT GND TM 1 TM 2 SENS IN SENS OUT GND SENS IN SENS OUT GND SENS IN SENS OUT GND GND OPEN SW OPEN SW LM 2 LM 1 LM 1 LM 2 GND E 1 E 2 E 3 VCC OUT2 GND VREF OUT1 VM FIN RIN VCC OUT2 GND VREF OUT1 VM FIN RIN LM R TM R E 1 E 2 E 3 TBL ADDRESS SENS OPEN SW L...

Page 3: ... D3 SRAM CS A11 A12 A13 A14 A15 LB UB RD A7 A8 A9 A10 A11 A12 A4 A5 A6 D12 D13 D14 D15 A4 A5 A6 D8 D9 D10 D11 D12 D13 D14 D15 BUS0 BUS1 BUS2 BUS3 BUCK CCE USB SI USB SO DO USB RST LRCK BCK REQ ST REQ A IN GATE LRCK CCE BUCK BUS3 BUS2 BUS1 BUS0 DO DI USB SO USB SI BCK A IN GATE REQ ST REQ USB RST DI A7 A16 A16 A1 A2 A3 A1 A2 A3 D11 D10 D9 D8 BOOT AMO TXD1 RXD1 RESET BOOT AM0 TXD1 RXD1 RESET EN FLG ...

Page 4: ...2k R438 100k R443 10k R444 50V 10 C356 1k R431 47k R433 4700p C466 10k R429 4700p C416 47k R434 1k R432 10k R430 0 R350 0 R441 4 7k R307 4 7k R308 0 01 C355 100 R315 100 R316 47k R303 47k R304 1000p C303 1000p C304 220k R306 NJM4558V TE2 IC401 1 3 3 2 1 NJM4558V TE2 IC401 2 3 5 6 7 NJM4558V TE2 IC401 3 3 8 POWER 4 GND 1000p C302 47k R301 47k R302 1000p C301 NJM14558V TE2 IC301 1 3 3 2 1 NJM14558V ...

Page 5: ...7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 O SYS MUTE O SWR O FRONT SP RELAY O CD POWER 0 POWER RELAY CD XRST CD M MUTE O USB POWER I USB CTS DI O USB RTS DO O USB...

Page 6: ...L MIX1 MIX2 VCC TAPE L CD L 0 022 C150 2SC3052EF T1 LEF Q114 C156 220k R214 50V 2 2 C211 50V 22 C111 4 7k R113 50V 1 C116 220 R216 47k R110 2SC3052EF T1 LEF Q111 100 R116 50V 0 47 C119 220 R217 50V 0 22 C212 100k R111 4 7k R213 470 R112 680 R114 50V 2 2 C118 2 2k R212 10k R108 470p C117 2SC3052EF T1 LEF Q112 1 2 3 4 5 6 7 8 9 10 R2S15208SP REFIN LIN RIN VCC DATA CLK GND ROUT LOUT REFOUT 1 C164 1 C...

Page 7: ...O I 2I O 2C 3C GND 3I O 3O I 4O I 4I O 4C 1C VCC 14 13 12 11 10 9 8 7 1 2 3 4 5 6 TC74HC4066AFT EL IC302 1I O 1O I 2O I 2I O 2C 3C GND 3I O 3O I 4O I 4I O 4C 1C VCC 100 R328 100 R330 100 R332 10k R334 KTA1271Y AT Q304 RT1N431C TP 1 Q303 470 R333 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 21P CN301 DATA CLK DO RST DI CTS USB SO TXD USB SI RXD BCK A IN GATE REQ ST REQ USB RST LRCK DVSS DV...

Page 8: ...4 1 2 3 3P CN041 FAN FAN FAN 4 7k R036 220k R049 10k R042 JW001 10 R061 2 2 R047 2 2k R055 KTA1266GR AT Q043 22k R053 1k R057 2 2k R051 1k R045 25V 47 C035 10EDB40 TB3 D021 10EDB40 TB3 D022 E EP031 22k R034 1k R032 22k R033 4 7k R037 8p C277 50V 10 C282 16V 47 100 R265 MA111 TX D031 D2SB60A F04 D001 1 2 3 4 0 1 C274 0 01 C273 120k R285 100k R277 MC2837 D008 1 2 3 3P CN002 USB MONI AC3 UNREG GND NJ...

Page 9: ...C813 4 7k R812 4 7k R813 220k R810 18k R842 C821 0 1 C822 0 1 1000p C823 1000p C824 470k R823 470k R824 1k R822 1k R821 E ET802 NJM4558V TE2 IC801 3 2 1 NJM4558V TE2 IC801 5 6 7 IC801 8 POWER 4 GND 18k R845 10k R846 10k R843 47k R844 100k R841 1k R831 1k R832 10V 220 C827 10 C828 L R J802 J803 4P CN803 1 2 3 4 50k RV801 1 2 3 4 5 5P CN802 VBUS D D GND SHIELD J801 0 022 C805 0 022 C804 SLR 342VC3F ...

Page 10: ...W 2 2k R468 TH441 5W 0 22 R449 5W 0 22 R450 0 1 C413 0 1 C414 0 1 C451 0 1 C452 0 1 C453 0 1 C454 2SC5625 Q441 2SC5625 Q442 1k R498 33k R469 1k R470 35V 22 C463 E EP401 UDZW TE17 16B D445 UDZW TE17 16B D446 1 7uH L441 1 7uH L442 RY441 1 2 1 3 4 5 6 7 CN443 7P VCC GND VCC PROTECT RELAY RELAY C411 1000p 1 2 3 4 5 6 7 8 9 10 11 12 13 13P CN441 GND AC 3_RELAY NC STK_MUTE POWER_GND UNREG 16V IN L AMP A...

Page 11: ...k R445 1k R446 1k R455 1k R456 1k R499 TH441 5W 0 22 R451 5W 0 22 R452 0 1 C451 0 1 C452 0 1 C453 0 1 C454 2SC5625 Q441 2SC5625 Q442 1k R498 R493 47k R492 1k C488 22 35V E EP401 1 7uH L441 1 7uH L442 RY441 1 2 1 3 4 5 6 7 CN443 7P VCC GND VCC PROTECT RELAY RELAY C411 1000p 1 2 3 4 5 6 7 8 9 10 11 12 13 13P CN441 GND AC 3_RELAY VFL STK_MUTE POWER_GND UNREG 16V IN L AMP A_GND IN R PROTECT RELAY_B HP...

Page 12: ...C3052EF T1 LEF Q503 2SC3052EF T1 LEF Q505 2SC3052EF T1 LEF Q507 7 6 5 4 3 2 1 13 12 11 10 9 8 STK404 130S IC501 POSI POSI SW IN SW NF SUB PRE PRE BIAS BIAS VCC VCC RE RE 1W 4 7k R507 1W 4 7k R508 2W 4 7k R505 2SC5625 Q501 2SC3052EF T1 LEF Q506 1 R534 1 2 3 4 4P CN503 SW OUT SW OUT SW SP_GND SW SP_GND ISA1235AC1TP 1EF Q502 MA111 TX D507 MA111 TX D502 MA111 TX D503 MA111 TX D504 RY501 1 2 UDZW TE17 ...

Page 13: ...LEF Q702 2SC3052EF T1 LEF Q703 2SC3052EF T1 LEF Q704 2SC3052EF T1 LEF Q705 2SC3052EF T1 LEF Q706 2SC3052EF T1 LEF Q707 2SC3052EF T1 LEF Q708 2SC3052EF T1 LEF Q709 2SC3052EF T1 LEF Q710 2SC3052EF T1 LEF Q711 2SC3052EF T1 LEF Q712 47k R734 47k R733 2SC3052EF T1 LEF Q713 2SC3052EF T1 LEF Q714 47k R741 47k R742 47k R743 47k R744 47k R745 47k R746 47k R747 47k R748 47k R749 47k R750 47k R751 47k R752 4...

Page 14: ...S648 A 1 2 J H B C 7 8 I F 9 6 K 4 3 G D 5 E S607 S606 S605 S604 S603 S602 SLR 325VCT31P D611 470 R655 470 R602 680 R603 1k R604 1 5k R605 2 2k R606 1k R688 1k R698 S608 4 7k R607 1k R657 100 R656 SLR 325MCT31 0 22 C601 VCC OUT GND NJL24H400B IC601 1 3 2 SW LED OUT STBY LED SIRCS KEY0 D GND AVREF LED 9V KEY LEFT BOARD IC601 REMOTE CONTROL STANDBY RECEIVER 1 7 GT44 GT55 SUBWOOFER SUBWOOFER USB AUDI...

Page 15: ...914 JL915 JL916 JL919 JL920 JL921 JL923 JL924 JL926 1 3 4 5 6 7 8 9 2 PT902 MC2838 T112 1 D910 1 2 3 4 5 5P CN903 AC VH AC VL GND AC VL AC VH 5 2 16 17 12 14 13 18 1 15 6 10 11 4 7 3 8 9 19 MAIN POWER PT901 FH915 FH917 FH909 FH916 FH918 FH908 FH911 FH912 FH914 FH913 FH907 FH910 MA111 TX D901 47k R913 12k R914 22k R912 50V C914 3 3 0 R911 1 R908 TRANS BOARD A 10 1 2 B 13 11 C 7 8 F 9 6 4 3 D 5 E 12...

Page 16: ...910 UDZSTE 1730B D906 RY901 2SB1238 PQR TV2 Q902 4 7k R915 2SC3052EF T1 LEF Q903 JW925 1 2 3 3P CN903 AC GND AC JL903 JL904 JL905 JL906 JL914 JL915 JL921 JL922 JL923 JL924 1 3 4 5 6 7 8 9 2 PT902 MC2838 T112 1 D910 S901 5 2 16 17 12 14 13 18 1 15 6 10 11 4 7 3 8 9 PT901 FH908 FH913 FH910 FH917 FH914 FH907 FH909 FH918 MA111 TX D901 47k R913 12k R914 22k R912 50V C914 3 3 1 R908 VOLTAGE SELECTOR TRA...

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