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Ver 1.0 2000. 03 With SUPPLEMENT-1 (9-959-254-81)

SRF-HM22
US Model Canadian Model

SERVICE MANUAL
2000. 03

SUPPLEMENT-1
File this supplement with the service manual.

Subject: 1. Correction 2. US Model Modification (Serial No. 836,101 and later)
(ECN-TR801624)

· NEW/FORMER TYPE DISCRIMINATION
­ CABINET (REAR) (R) ­ Former Type New Type
LABEL FCC (RADIO)

­2­

SRF-HM22
· PRINTED WIRING BOARDS

& : Corrected portion ! : Changed portion
7

Service Manual (See page 12, 13) (Location: A ­ K, 7 ­ 21)

8

9

10

11

12

13

14

15

16

17

18

19

20

21

RADIO MAIN BOARD
ANT1 FM TELESCOPIC ANTENNA

S105 4

C226
RED

2 DRY BATTERY SIZE "AAA" (IEC DESIGNATION R03) 2PCS.3V 1 S101 1 R108 S107 ENTER/ CLOCK VT

C1

C225

IC102

3

R118

R2

C24 T1
R120 C16 R101

C5
R5

JR4 C11 S2 JR11 S2 POWER

C115

R114

1

8

C114

C120 R112 4

IC103
5 JR108

R9

R12

JR10

R110

R111

JR104

S104 BAND

C113

JR102

R113

C112

C109

R121

C119

CONDUCTIVE FOIL

+
R21

CF2 CF1 C9

R109

Q3

C17

R13

JR1 C4

X1

C111
C108

R1

Q101 D101
3 2 1 (US) 4 5 6 42 43 29 28 R106
C107

C33

C20

C19

C121

R107

GRN/NATURAL
JR106 R15

IC1
GRN L5

C300

C14

C105

C301

#

S108

+
TUNE/TIME SET 56 1 15 14
C102

C106 C22 C32
R104

R6

C8

S108

IC101

*

(US)

JR3

C6 L3

D4
R4

+

24

1
R11

JR107

C103

BLK

Q1
R7

CF3

C10

­
S109 S109 C101

R102
C23

C104 LCD1 LIQUID CRYSTAL DISPLAY 17 1
R17 JR105 C29

R115

R119 RED/GRN 6 4
R18 C27

C25

(SHIELD CASE) 6 4

R116

R117

Q102
1 3

R16

R19

1-650-259-

11 (11)
BLK BRN

SP1 L-CH SPEAKER

­3­

+

NATURAL

C28

T2

R8

RED

R22

Q2
1 3 C31 C26

D5

1-650-258-

11 (11)

* : Connect the C300 in the shortest way.

­4­

+

+

+

S106 5 CT1

KEY BOARD
S103 3

L4 S1 FM SENS DX FM ANT IN C13

L1 FERRITE-ROD ANTENNA S102

S1

LOCAL

D2
­1 ­2

B.

BPF1

P.

F

2

13

C110 6 4 1 3

12

R10

L2

C18 R105 C3

R5

%

CT2

D3

C7

C15

D6

SRF-HM22

· SCHEMATIC DIAGRAM

! : Changed portion

Service Manual (See page 9, 10) (Location: A ­ F, 5 ­ 11)

# !

#

#
Service Manual (See page 9) (Location: G ­ J, 1 ­ 6)

#

@

­5­

SRF-HM22

· CORRECTION (1) EXPLODED VIEWS
Page
Ref. No. Part No. 31

! : Indicates added or changed portion
INCORRECT
Description Remark Ref. No. Part No. 31 3-831-441-XX SPACER

CORRECT
Description Remark 3-831-441-99 SPACER, KNOB

ANT1 3-908-996-01 COIL (ANTENNA) (FM)

33 3-908-996-01 COIL (ANTENNA) ANT1 X-3374-738-1 ANTENNA ASSY

not supplied

16

13

13

$

12

12

ANT1

#

ANT1

33

@

· DIFFERENCE PARTS LIST (1) EXPLODED VIEWS
Page
Ref. No. Part No. * 9 * 23

Former Type
Description Remark Ref. No. Part No. * * * * 9 9 23 23 A-3679-550-A A-3683-141-A A-3679-551-A A-3683-142-A A-3679-550-A KEY BOARD, COMPLETE A-3679-551-A AUDIO BOARD, COMPLETE

New Type
Description Remark KEY BOARD, COMPLETE (Canadian) KEY BOARD, COMPLETE (US) AUDIO BOARD, COMPLETE (Canadian) AUDIO BOARD, COMPLETE (US)

16

(2)

ELECTRICAL PARTS LIST
Former Type
Ref. No. Part No. * Description Remark Ref. No. Part No. * * A-3679-551-A AUDIO BOARD, COMPLETE ********************** C214 Q202 * 1-124-430-00 ELECT 22µF 8-729-402-19 TRANSISTOR XN6501 A-3679-550-A KEY BOARD, COMPLETE ******************** 20% 4V C214 Q202 * *

Page

New Type
Description Remark A-3679-551-A AUDIO BOARD, COMPLETE (Canadian) A-3683-142-A AUDIO BOARD, COMPLETE (US) ********************** 1-126-514-11 ELECT 22µF 8-729-920-59 TRANSISTOR IMX2 20% 16V

17

A-3679-550-A KEY BOARD, COMPLETE (Canadian) A-3683-141-A KEY BOARD, COMPLETE (US) ******************** C301 1-162-282-31 CERAMIC 100PF 10% 50V (US)

18
Q101 8-729-402-19 TRANSISTOR XN6501 Q101 C300 8-729-920-59 TRANSISTOR IMX2 1-162-282-31 CERAMIC 100PF 10% 50V (US)

19
Q2 8-729-402-19 TRANSISTOR XN6501 Q2 8-729-920-59 TRANSISTOR IMX2 · Items marked "*" are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items.

Sony Corporation
9-959-254-81
Personal Audio Division Company

­6­

2000C0520-1 Printed in Japan C 2000. 3 Published by General Engineering Dept.