Sony SRF-HM22 User manual

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

SERVICE MANUAL
(ECN-TR801624)
– 2 –
SRF-HM22
SUPPLEMENT-1
File this supplement with the service manual.
US Model
Canadian Model
Subject:
1. Correction
2. US Model Modification
(Serial No. 836,101 and later)
• NEW/FORMER TYPE DISCRIMINATION
– CABINET (REAR) (R) –
FormerType NewType
LABEL FCC (RADIO)
2000. 03

R16
C31
C10
C6
JR3
C7
C3
C5
C13
R5
C4
R13C17
R12
R108
R118
R114
C120
C115
C114
R112
C111
R105
C110
R106
C106
C103
C101
R102
C104
R119
R117R116
R115
C24
C9
JR1
JR10
JR11
C11
JR108
R109
R120
C108
JR105
JR4
R10
R4
R22
C32
L5
C18
C26
C25
R19
R18
C27
R17
C29
R11
C23
R8
R7
R6
C8 C14
R9
R5
R2
R1
C16
C1
C19
C33
R15
JR106
JR107
R21
R121
C105
C102
R104
C107
C121
R107
JR102
C109 C112
R113
JR104
R111 R110
C113
R101
C119
C20
D5
Q2
1
3
6
4
Q102
6
4
1
3
C28
RED/GRN
NATURAL
RED
RED
BLK
GRN
GRN/NATURAL
BRNBLK
SP1
L-CH
SPEAKER
+
C22
+
CF3
Q1
D6
D4
D3
L3
C300
12
1
13
24
C15
+
CT2
(US)
CT1 L4
S1
L1
FERRITE-ROD
ANTENNA
BPF1
S2
L2
Q3
CF1
CF2
D2
–1
–2
ANT1
FM
TELESCOPIC
ANTENNA
FM
ANT IN
VT
IC1
FM SENS DX
S1
POWER
S2
LOCAL
RADIO MAIN BOARD
KEY BOARD
1-650-258- (11)
11
1-650-259- (11)
11
42 29
43
56
114
15
28
IC101
S108
S108
S109
S109
1
LCD1
LIQUID CRYSTAL DISPLAY
(SHIELD CASE)
17
Q101
1
3
6
4
D101
IC102
1
2
3
IC103
1
4
8
5
X1
4
5
6
3
2
1
TUNE/TIME
SET
+
–
S107
ENTER/
CLOCK
5
S106
4
S105
3
S103
2
S102
1
S101
BAND
S104
C301
(US)
C226
+
C225
+
DRY BATTERY
SIZE “AAA”
(IEC DESIGNATION R03)
2PCS.3V
CONDUCTIVE
FOIL
B.P.F
789 10 11 12 13 14 15 16 17 18 19 20 21
*
T2
T1
–3 ––4 –
•PRINTED WIRING BOARDS
&: Corrected portion
!: Changed portion
Service Manual (See page 12, 13)
(Location: A –K, 7 –21)
SRF-HM22
+
#
%
* : Connect the C300 in the shortest way.

– 5 –
• 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)
SRF-HM22
#

–6 –
31 3-831-441-XX SPACER
ANT1 3-908-996-01 COIL (ANTENNA) (FM)
SRF-HM22
Sony Corporation
Personal Audio Division Company
9-959-254-81 2000C0520-1
Printed in Japan C2000. 3
Published by General Engineering Dept.
•CORRECTION
(1) EXPLODED VIEWS
!: Indicates added or changed portion
Page INCORRECT CORRECT
Ref. No. Part No. Description Remark
31 3-831-441-99 SPACER, KNOB
33 3-908-996-01 COIL (ANTENNA)
ANT1 X-3374-738-1 ANTENNA ASSY
Ref. No. Part No. Description Remark
16
13
12
ANT1
13
12
33
ANT1
not supplied
#
(2) ELECTRICAL PARTS LIST
• Items marked “*” are not stocked since they are seldom required for routine service.
Some delay should be anticipated when ordering these items.
Page FormerType NewType
Ref. No. Part No. Description Remark
*A-3679-551-A AUDIO BOARD, COMPLETE (Canadian)
*A-3683-142-A AUDIO BOARD, COMPLETE (US)
**********************
C214 1-126-514-11 ELECT 22µF 20% 16V
Q202 8-729-920-59 TRANSISTOR IMX2
*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)
Q101 8-729-920-59 TRANSISTOR IMX2
C300 1-162-282-31 CERAMIC 100PF 10% 50V
(US)
Q2 8-729-920-59 TRANSISTOR IMX2
Ref. No. Part No. Description Remark
*A-3679-551-A AUDIO BOARD, COMPLETE
**********************
C214 1-124-430-00 ELECT 22µF 20% 4V
Q202 8-729-402-19 TRANSISTOR XN6501
*A-3679-550-A KEY BOARD, COMPLETE
********************
Q101 8-729-402-19 TRANSISTOR XN6501
Q2 8-729-402-19 TRANSISTOR XN6501
17
18
19
$
@
*9 A-3679-550-A KEY BOARD, COMPLETE
*23 A-3679-551-A AUDIO BOARD, COMPLETE
•DIFFERENCE PARTS LIST
(1) EXPLODED VIEWS
Page FormerType NewType
Ref. No. Part No. Description Remark
*9 A-3679-550-A KEY BOARD, COMPLETE (Canadian)
*9 A-3683-141-A KEY BOARD, COMPLETE (US)
*23 A-3679-551-A AUDIO BOARD, COMPLETE (Canadian)
*23 A-3683-142-A AUDIO BOARD, COMPLETE (US)
Ref. No. Part No. Description Remark
16