Sony FH-B7CD - Page 4

| HCD-H7/H1500
SECTION 1
SERVICING NOTES
MODEL IDENTIFICATION
— Specification Labels —
IT model only: FH-B7CD
Except for IT model: HCD-H7
HCD-H1500
SONY? move. no LZ
COMPACT DISC DECK RECEIVER
MMMM blll
SERIAL NO.
MADE IN JAPAN
US model: AC: 120V~60Hz 80W
Canadian model: AC: 120V~60Hz 110W
AEP, WG model: AC: 220V~50/60Hz 90W
IT model: AC: 220V~50Hz 90W
UK model: AC: 240V~50Hz 160W
EF, EA, AUS model: AC: 110—-120/220—240V~50/60Hz 90W
On operating voltage
Before operating the stereo system, check
that the operating voltage of your system is
identical with the voltage of your local power
supply. @
US, Canadian model 120V AC, 60Hz
AEP, WG, IT model 220V AC, 50/60Hz
UK model 240V AC, 50Hz
110-120,
220—240V AC
adjustable, 50/60Hz
E, EA, AUS model
On operation
e If the system do not operate due to power
noise, press the system reset button at
the rear. The system will resume
operation. @)
At this time, the system returns to the
factory-set mode. Please set the clock,
timer, or store stations again.
VOLTAGE SELECTOR
110v-120V4 = L220 v - 240 v
SAFETY CHECK-OUT
After correcting the original service problem,
perform the following safety check before releasing
the set to the customer:
Check the antenna terminals, metal trim, ‘‘metallized’’
knobs, screws, and all other exposed metal parts for
AC leakage. Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to
earth ground and from all exposed metal parts to any
exposed metal part having a return to chassis, must
not exceed 0.5mA (500 microampers). Leakage
current can be measured by any one of three
methods.
1. A commercial leakage tester, such as the
Simpson 229 or RCA WT-540A. Follow the
manufacturers’ instructions to use these instru-
ments.
2. <A battery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for
this job.
3. Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC volt-
meter. The “limit” indication is 0.75 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM that
is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are
suitable. (See Fig. A)
To Exposed Metal
Parts on Set
AC
voltmeter
ae (0.75 V)
= Earth Ground
Using an AC voltmeter to check AC leakage.