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..		HCD-H550, HCD-H550M, HCD-H771, HCD-H881, HCD-H991AV, HCD-RX70, HCD-RX100AV, HCDW55 Sony (Bulletin) Service Bulletin - Symptom:The customer may complain of high wow & flutter when playing tapes. - pag. 1
HCD-H550, HCD-H550M, HCD-H771,		DXA-C70, DXA-H2750, DXA-H3750, HCD-541, HCD-551, HCD-C50, HCD-H61, HCD-H61M, HCD-H170, HCD-H650, HCD Sony (Bulletin) Service Bulletin - Symptom:The original Base Assembly, Head p/n A-2003-757-A or A-2003-838-F has been replaced. - pag. 1
DXA-C70, DXA-H2750, DXA-H3750,		CDP-XA7ES Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: When a CD is inserted and the drawer is closed the CD will intermittently not play.
CDP-XA7ES Sony (Bulletin)
HCD-H331, HCD-H331D, HCD-H551, HCD-H771, HCD-H771D, HCD-H881, HCD-H991AV. Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: Sound might be distorted when recording certain Cds. This may occur if the low frequency components on the disc exceed the capacity of the deck.
HCD-H331, HCD-H331D, HCD-H551,		GENERAL Sony (Bulletin) Service Bulletin - Symptom:The CD mechanism alignment procedure for the MHC-C305 ,MHC-C33 and the CFD-606/616/and 626 is not available in the Service manual - pag. 1
GENERAL Sony (Bulletin)		HCD-H305, HCD-H405, HCD-H605, MHC-C305, MHC-C405, MHC-C605. Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The disc tray may stop during operation.
HCD-H305, HCD-H405, HCD-H605, 		MHC-C33, MHC-C55 Sony (Bulletin) Service Bulletin - Symptom:Discs Jam, or the Unit May Fail to Identify Discs Properly - pag. 2
MHC-C33, MHC-C55 Sony (Bulleti
GEN-MDS Sony (Bulletin) Service Bulletin - Symptom:Laser power measurements made with the LPM-8001 laser power meter (part number J-2501-046-A) will actually be somewhat lower than the actual laser power, and therefore must be corrected to reflect the true power level. The amount of correction is dependant upon which which laser mode is being measured at the time - pag. 1
GEN-MDS Sony (Bulletin)		FH-209W, FH-211W, HST-190, HST-750W, TC-FX170, TC-FX211, TC-V33W, TC-W255, TC-W285, TC-W285, TC-W300 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The original Tape transport motor for the listed models is no longer available. Replacement motors are available under the following part numbers: X-3390-801-1, X-3390-802-1, 1-541-427-11, and 1-541-745-11. The negative (minus) side of the replacement motors are internally connected to the motor case. The case ground may damage the negative power supply in a symmetrical +,- power supply configuration.
FH-209W, FH-211W, HST-190, HST		STR-GX700ES Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The unit will go into protection when it is powered on.
STR-GX700ES Sony (Bulletin)		STR-D965 Sony (Bulletin) Service Bulletin - Symptom:The customer complaint may state, when the surround level is set to maximum and the unit is powered off, all memory is erased. - pag. 1
STR-D965 Sony (Bulletin)
CDP-C235, CDP-C335, CDP-C435, CDP-C535 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The Optical Block KSS-390A is no longer available and KSS-240A is supplied as the substitution. As the two parts have some electrical and mechanical differences, please perform the following changes according to the model being serviced.
CDP-C235, CDP-C335, CDP-C435, 		MHC-C33, TC-WR445 Sony (Bulletin) Confidential Service Bulletin - Sympton:The Capstan belt slips due to the excessive load exerted by Cam (A). - pag 1
MHC-C33, TC-WR445 Sony (Bullet		STR-DE305 Sony (Bulletin) Service Bulletin - Symptom:When the unit is initially powered ON or has not been used for several weeks the FM frequency range may be incorrect - pag. 1
STR-DE305 Sony (Bulletin)		MDS-101, MDS-501, MDS-302, MDS-JA3ES Sony (Bulletin) Service Bulletin - Symptom: Unable to Syncro record when connected to an MDP Player. This is due to different SIRCS codes used in MDP Players and CD Players - pag. 1
MDS-101, MDS-501, MDS-302, MDS
CDP-XA3ES Sony (Bulletin) Service Bulletin - Symptom:When the EDIT FADE TIME is set and the power is switched OFF and ON the FADE TIME entered may not be held in memory. - pag. 1
CDP-XA3ES Sony (Bulletin)		MDS-501 Sony (Bulletin) Service Bulletin - Symptom:The MDS501 won
MDS-501 Sony (Bulletin)		TC-WR445 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: A loud mechanical noise may be heard while in the play mode. This is due to a lack of oil on the FR gear.
TC-WR445 Sony (Bulletin)		MDS-101, MDS-501, MDS-302, MDS-JA3ES, MDS-S35 Sony (Bulletin) Service Bulletin - Symptom:When replacing the Digital Board misoperation may occur when the unit is powered ON - pag. 1
MDS-101, MDS-501, MDS-302, MDS
STR-D565, STR-D665 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The customer may complain of noise or distorted sound from the rear channel when the volume level is increased.
STR-D565, STR-D665 Sony (Bulle		MDS-JE500 Sony (Bulletin) Service Bulletin - Symptom:In early production units it is not possible to enter the test mode as outlined in the Service Manual - pag. 1
MDS-JE500 Sony (Bulletin)		MDS-302, MDS-S35, MDS-JA3ES, MDS-503 Sony (Bulletin) Service Bulletin - Symptom:When recording using a Sony MO disc MDW-60 with stamper No. “J2-0304”, “RETRY ERROR” is displayed and sound skips during playback. To view the stamper number open the shutter of the disc. Look for the number at the area closest to the spindle hole. Rotating the disc may be necessary to align the number with the shutter opening - pag. 1
MDS-302, MDS-S35, MDS-JA3ES, M		GEN-MDS Sony (Bulletin) Service Bulletin - Symptom:The part number listed on page 27 (Schematic) & page 99 (Parts List) of the Service Manual for Ref # F1903, Fuse (3.15A, 125V), is incorrect - pag. 1
GEN-MDS Sony (Bulletin)
STR-GA8ES, STR-GA9ESG Sony (Bulletin) Service Bulletin - Symptom:If the customer complaint is excessive noise in the rear channels perform the following procedure. - pag. 1
STR-GA8ES, STR-GA9ESG Sony (Bu		MDS-501 Sony (Bulletin) Service Bulletin - Symptom:On a recordable disc one or more of the following problems may occur: 1.) Recording is not possible. 2.) Sound will skip during Playback. 3.) "DISC ERROR" appears in the display 4.) "RETRY ERROR" appears in the display 5.) A disc cannot be ejected 6.) TOC information cannot be read. 7.) The unit will stop during playback - pag. 2(?)
MDS-501 Sony (Bulletin)		D-131 Sony (Bulletin) Service Bulletin - Symptom:Unit has a KSS-411A optics as identified in supplement-3 and does not play disc, read or rotate. - pag. 2
D-131 Sony (Bulletin)		HCD-H100 Sony (Bulletin) Service Bulletin - Symptom:The unit does not detect a CD in the disc tray. - pag. 1
HCD-H100 Sony (Bulletin)
SDP-505ES, SDP-777ES Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: IC NE657N (8-759-927-57), referenced IC504 (SDP-505ES) and IC503 (SDP-777ES) is no longer available, it is necessary to perform the following modification when this part needs servicing.
SDP-505ES, SDP-777ES Sony (Bul		CDP-X779ES Sony (Bulletin) Service Bulletin - Symptom:The unit will intermittantly not operate when using the front panel function buttons or the remote commander - pag. 3 (?)
CDP-X779ES Sony (Bulletin)		CDP-XA7ES Sony (Bulletin) The unit exhibits an unstable display - pag. 1
CDP-XA7ES Sony (Bulletin)		STR-D665 Sony (Bulletin) Service Bulletin - Symptom:The display will disappear shortly after the unit is powered on. - pag. 2 (?)
STR-D665 Sony (Bulletin)
STR-D311 Sony (Bulletin) Service Bulletin - Symptom:Output Transistors fail, sometimes repeatedly, after replacement - pag. 2 (?)
STR-D311 Sony (Bulletin)		MDS-S35 Sony (Bulletin) Service Bulletin - Symptom:The MD will not eject due to the DOOR LEVER (ref.#119) having disengaged from the LID LEVER (ref.#11) - pag. 1
MDS-S35 Sony (Bulletin)		D-151, D-151C, D-242CK, D-242SK, D-242CKT, D-245, D-247, ICF-CD1000 Sony (Bulletin) Service Bulletin - Symptom:No Sound. Unit does not read TOC and gives a “NO Disc” Indication. - pag. 1
D-151, D-151C, D-242CK, D-242S		LBT-D220 Sony (Bulletin) Service Bulletin - Symptom:The tuners preset memory may be lost when the power is turned off after turning the volume up and down several times with the remote commander. - pag. 3 (?)
LBT-D220 Sony (Bulletin)
CDP-XA7ES Sony (Bulletin) Service Bulletin - Symptom:If the customer complaint is any of the following - pag. 1
CDP-XA7ES Sony (Bulletin)		HCD-D260, HCD-D560 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The unit may become inoperative or may behave erratically.
HCD-D260, HCD-D560 Sony (Bulle		CDP-CX250 Sony (Bulletin) Confidential Service Bulletin - Sympton: The customer states the display is too dark to read or it does not light at all. - pag 1
CDP-CX250 Sony (Bulletin)		HCD-C33, C55 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The unit will not load, unload, locate or play a disc.
HCD-C33, C55 Sony (Bulletin)


STR-D159 Sony (Bulletin) Service Bulletin - Symptom:The tuners preset memory may be lost when the power is turned off after turning the volume up and down several times with the remote commander. - pag. 3 (?)
STR-D159 Sony (Bulletin)		HCD-D270, HCD-G3100 Sony (Bulletin) Service Bulletin - Symptom: The unit dead and/or IC1201 shorted. Main fuse could be open. - pag. 1
HCD-D270, HCD-G3100 Sony (Bull		MDS-S35, MDS-302, MDS-JA3ES Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: There are several types of optical block assemblies and it is sometimes necessary to remove a mounted component when installing a new optical block assembly. In instances where component removal is required, a notice is packed with the replacement part outlining the specific component to remove. In addition to the component outlined in the notice remove the capacitor listed below.
MDS-S35, MDS-302, MDS-JA3ES So		TA-E90ES Sony (Bulletin) Service Bulletin - Symptom:The customer complaint may state the sound cannot be heard several minutes after the unit is powered ON - pag. 1
TA-E90ES Sony (Bulletin)
D-141, D-142CK, D-143, D-242CK, D-245, D-247 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: Unable to playback or power on.
D-141, D-142CK, D-143, D-242CK		CDP-C265 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The disc table (B) rotation speed is too fast and will not stop rotating.
CDP-C265 Sony (Bulletin)		SDP-EP9ES Sony (Bulletin) Service Bulletin - Symptom:The customer may complain of noise when raising or lowering the volume control. - pag. 1
SDP-EP9ES Sony (Bulletin)		CDP-CX90ES, CDP-CX270 Sony (Bulletin) Service Bulletin - Symptom:The customer may complain of a “beep” noise on the audio. - pag. 1
CDP-CX90ES, CDP-CX270 Sony (Bu
STR-G3 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The customer may complain of noise or distorted sound from the rear channel when the volume level is increased.
STR-G3 Sony (Bulletin)		CDP-X779ES Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The customer will complain that the unit will intermittantly not operate.
CDP-X779ES Sony (Bulletin)		HCD-C33/C55 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: Sequence of events during Initialization.
HCD-C33/C55 Sony (Bulletin)		D-311 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: Battery is not able to operate unit for more than two hours even though battery was fully charged (charged for more than 4 hours)
D-311 Sony (Bulletin)
STR-G3 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The customer complaint states that the unit loses memory when it is unplugged, after a power failure, or when using an external timer.
STR-G3 Sony (Bulletin)		D-151, D-340, D-152, D-153, D-345 Sony (Bulletin) Service Bulletin - Symptom:Sound Skipping - pag. 1
D-151, D-340, D-152, D-153, D-		MDS-501 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The original optical device KMS-140B, (Ref. #21) P/N 8-583-003-21, has been replaced by the KMS-140C (P/N 8-583-005-11).
MDS-501 Sony (Bulletin)		MDS-501 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: When selecting the last track by quickly rotating the Jog dial, the name of the last track does not appear and "No Name" is shown in the display.
MDS-501 Sony (Bulletin)
CDP-CX153 Sony (Bulletin) Service Bulletin - Symptom:The CDP-CX153 may randomly delete DISC MEMO titles when entered as per the Operating Instruction manual. The titles may be lost when playing discs or uploading the data to the CTRL-300 controller. - pag. 2
CDP-CX153 Sony (Bulletin)		DSC-88 Sony (Bulletin) Service Bulletin - Symptom:During the operation of Digital Signal Checker (DSC-88) noise is heard in the audio - pag. 1
DSC-88 Sony (Bulletin)		GEN-CD Sony (Bulletin) Service Bulletin - Symptom:This Bulletin serves as an announcement to the Service Field about the Optical Block Replacement Program. - pag. 2
GEN-CD Sony (Bulletin)		D-340, D-345 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: Unit intermittently does not play, especially 8cm single discs.
D-340, D-345 Sony (Bulletin)
D-242CK, D-245 Sony (Bulletin) Confidential Service Bulletin - Sympton: IC 501 (BA6375K) is no longer available. When replacing this component, use the IC identified below - pag 1
D-242CK, D-245 Sony (Bulletin)		CDP-CA8ES, CDP-CA9ES Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The customer complaint is described as audio intermittently “skipping” or “muting”.
CDP-CA8ES, CDP-CA9ES Sony (Bul		MDS-501 Sony (Bulletin) Service Bulletin - Symptom:When making a digital recording from a CD, the MDS-501 may assign more tracks than originally on the Compact Disc - pag. 3 (?)
MDS-501 Sony (Bulletin)		D-311 Sony (Bulletin) Service Bulletin - Symptom:The PWM driver is no longer available - pag. 1
D-311 Sony (Bulletin)
D-140, D-143, D-144K, D-145, D-147CR, D-141, D-141CK, D-142CK Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: Unit skips , even when stationary.
D-140, D-143, D-144K, D-145, D		SAVA3 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The SAVA3 will not shut down after an input signal has been removed or, the unit will shut down while an input signal is still active to the speaker.
SAVA3 Sony (Bulletin)		MDS-101 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: MO discs will display irregular movement on playback such as; no rotation, no focus servo, and ejecting. No problem seen when playing pre-recorded non-MO MiniDiscs.
MDS-101 Sony (Bulletin)		STRGX800ES Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: No Sound in
STRGX800ES Sony (Bulletin)
MZ-R3 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: (212) Unit will power off while in record or play back mode, or unit will power on by itself.
MZ-R3 Sony (Bulletin)		D-335, TCD-D7 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: Digital recording is impossible when connecting D-335 to TCD-D7 using an optical connection cable.
D-335, TCD-D7 Sony (Bulletin)		TA-AV531, TA-AV631X Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: During the production phase of the TA-AV531 and TA-AV631X, R743 and R744 may not have been installed* on the Main PC board.
TA-AV531, TA-AV631X Sony (Bull		MZ-E2 Sony (Bulletin) Confidential Service Bulletin - Sympton: Unit doesn’t power off when the Hold Switch is on . Track 00 and the BATT indicator stay lit on the remote controller. - pag 1
MZ-E2 Sony (Bulletin)
GEN-HFP Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: A whistling noise can be heard from the mechanical assembly. The whistling noise is a result of vibration of the disc, optical lens, and BU base which results in an audible resonant frequency. The following modification is applicable to all units that use the KSS-240A optics and exhibit the audible noise.
GEN-HFP Sony (Bulletin)		SAVA3 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: When in Dolby Pro-Logic mode a popping noise is randomly heard in the rear channel.
SAVA3 Sony (Bulletin)		MDS-302 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: After replacing an optical block, two to three minutes into playing back a 74 minute MO disc, “Retry Error” will be displayed and the sound will skip.
MDS-302 Sony (Bulletin)		D-335 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: Will not accept any key command and LED is distorted.
D-335 Sony (Bulletin)
MDS-501 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: When the rec-out of on amplifier [Pag.4]
MDS-501 Sony (Bulletin)		D-211 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: The PWM driver is no longer available.
D-211 Sony (Bulletin)		D-824K Sony (Bulletin) Service Bulletin - Symptom:The part number listed on page 29 of Revised Service Manual for Ref # IC502, BU9310BKS, is incorrect - pag. 1
D-824K Sony (Bulletin)		D-345 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: Need extension cable to perform troubleshooting.
D-345 Sony (Bulletin)


D-137CR Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: No Sound is heard, only noise.
D-137CR Sony (Bulletin)		D-330 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Solution: R503
D-330 Sony (Bulletin)		D-515 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: Production of the MPC1716AFU has stopped.
D-515 Sony (Bulletin)		MZ-E3 Sony (Bulletin) Confidential Service bulletin hi-Fi product - Symptom: Unit powers up but sled can not move.
MZ-E3 Sony (Bulletin)


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