Sony SRFH-5 Service manual
SRF-H5
SERVICE MANUAL
Ver 1.0 1998.05
SPECIFICATIONS
US, Canadian Model :
FM : 87.5 – 108 MHz
AM :530 – 1,710 kHz
AEP, Australian Model :
FM : 87.5 – 108 MHz
AM :530 – 1,605 kHz
Power output
6 mW + 6mW (at 10% harmonic distortion)
Headphone type
Dynamic
Power requirements :
1.5V DC, one R03 (size AAA) battery
Mass
Approx. 129g (4.5 oz) incl. a battery
US Model
Canadian Model
AEP Model
Australian Model
Design and specifications are subject to change without notice.
FM STEREO / AM HEADPHONE RADIO
MICROFILM
TABLE OF CONTENTS
Specifications ........................................................................... 1
1. SERVICING NOTE....................................................... 3
2. GENERAL
Location and Function of Controls .................................... 4
3. DISASSEMBLY
3-1. Neck Band Removal ................................................... 5
3-2. Driver (Headphone) (R) Removal .............................. 5
3-3. Driver (Headphone) (L) Removal .............................. 5
3-4. Main Board Removal ................................................. 6
3-5. Audio Board Removal ................................................ 6
4. GEAR (TUNING CAPACITOR)
INSTALLATION ........................................................... 7
5. ELECTRICAL ADJUSTMENTS.............................. 8
6. DIAGRAMS
6-1. Printed Wiring Boards ...............................................11
6-2. Schematic Diagram................................................... 13
7. EXPLODED VIEW..................................................... 17
8. ELECTRICAL PARTS LIST.................................... 18
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.
– 2 –
SECTION 1
SERVICE NOTE
(Caution on Service)
Drip-proof freatment
Be sure to execute the following, when the cabinet is removed
during service.
Applicator SONY Grease SGL-601 (7-651-000-10) and apply
Silicone KE-490RTV (7-322-065-19) to the hatched portion
shown in figure using an applicator, etc.
KE-490RTV
Cabinet (rear) R
Lever
Cabinet (rear) R
Poly-slider W asher
SGL-601
Knob
(power)
Knob
(tune)
Cabinet (rear) L
KE-490RTV
Knob
(power)
Knob (VOL)
SGL-601
Lever
Cabinet (rear) L
– 3 –
LOCATION AND FUNCTION OF CONTROLS
SECTION 2
GENERAL
This section is extracted from
instruction manual.
– 4 –
SECTION 3
)
2
1
Boss
Boss
Driver (Headphone) (L)
3
Remove solder
Main L assy
DISASSEMBLY
r
The equipment can be removed using the following procedure.
Set
Note : Follow the disassembly procedure in the numerical order given.
3-1. NECK BAND REMOVAL
Neck band
DRIVER (Headphone) (R) Main board
DRIVER (Headphone) (L)
1
Claws
4
5
(+P 2x4)
Audio board
2
Screws
Neck band
Ear hook (R)
2
Ear hook (L
Main R assy
3-2. DRIVER (HEADPHONE) (R) REMOVAL
Main R assy
1
Claws
5
3
Read wire
Main L assy
3-3. DRIVER (HEADPHONE) (L) REMOVAL
Boss
2
Driver (Headphone) (R)
1
3
Remove solder
Boss
– 5 –
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