Read Sony HCD-GZR333I / HCD-LCD77DI / LBT-LCD77DI / MHCGZR333I Service Manual online
POWER OUTPUT AND TOTAL
(North American model only)
With 6 ohm loads, both channels driven,
from 120 – 10,000 Hz; rated 85 watts per
channel minimum RMS power, with no
more than 1% total harmonic distortion
from 800 milliwatts to rated output.
RMS output power (reference):
The following measured at AC 240 V,
Power output (rated):
RMS output power (reference):
connector jack, rear panel):
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC-
TIONNEMENT. NE REMPLACER CES COMPOSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON-
NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
objective lens surface on the Optical
Pick-up Block with 7mm aperture.
FM tuner section
change without notice.
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
• Unleaded solder melts at a temperature about 40 °C higher
applied to the solder joint for a slightly longer time.
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
also be added to ordinary solder.
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Keep the temperature of soldering iron around 270 °C during
After correcting the original service problem, perform the follow-
ing 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.
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 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
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 2 V AC range are suitable. (See
Parts on Set
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
BLOCK OR BASE UNIT
static break-down because of the potential difference generated by
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
The fl exible board is easily damaged and should be handled with
The laser beam on this model is concentrated so as to be focused
on the disc refl ective surface by the objective lens in the optical
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
exceeding the limit for Class 1.
a CLASS 1 LASER product.
This marking is located on the
– Back Panel –
CND : Canadian model