Onkyo T-4555, T-4555/S, T-4555B, T-4555B/S Service Manual
SERVICE MANUAL
SERVICE MANUAL
MULTI-PLATFORM TUNER
MODEL T-4555(B)/(S)
(North American model)
T-4555
Ref. No. 4015
072007
Black and Silver models
BMDC
SMDC
120V AC, 60Hz
120V AC, 60Hz
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
RC-671T
SERVICE PROCEDURE
1. Replacing the fuse
This symbol located near the fuse indicates that the
fuse used is show operating type, For continued protection against
fire hazard, replace with same type fuse , For fuse rating, refer to
the marking adjacent to the symbol.
Ce symbole indique que le fusible utilise est e lent.
Pour une protection permanente, n'utiliser que des fusibles de meme
type. Ce demier est indique la qu le present symbol est apposre.
T-4555
REF. NO.
F901
F901 or
PART NAME
FUSE
FUSE
DESCRIPTION
1.25A-UL/T-233
1.25A-T/UL-ST2
PART NO. (SN)
252318GR
252251GR
2. Initialize the unit
(1) Connect the AC power cord into a wall outlet.
(2) Press the STANDBY/ON button to turn on the unit.
(3) Press and hold down the MEMORY button, then press the STANDBY/ON button.
FL display
Clear
(4) Disconnect the AC power cord from a wall outlet.
---> STANDBY
3. Check the version of microprocessor
(1) Connect the AC power cord into a wall outlet.
(2) Press the STANDBY/ON button to turn on the unit.
(3) Press and hold down the DISPLAY button, then press the STANDBY/ON button.
FL display
version
V.1.02/06823A-3
3 seconds
(4) Press the STANDBY/ON button to turn off the unit.
(5) Disconnect the AC power cord from a wall outlet.
REMARKS
P<MDD>
!
P<MDD>
!
4. Tuner board
North American model <MDC>
Comes with C-HDSAT tuner board installed.
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