• Sony Lbt N355 Manual

.HCD-N555AVK 3 7 63 1515 0 SERVICE MANUAL E Model HCD-N555AVK is the tuner, deck, CD and amplifier section in LBT-N555AVK. Manufactured under license from Dolby Laboratories Model Name Using Similar Mechanism HCD-N355/N355K Licensing Corporation. CD Mechanism type CDM37-5BD19 DOLBY, the double-D symbol a and “PRO LOGIC”.THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS Mass WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS Approx. 13 kg MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

Design and specifications subject to change without notice. U163 — 2 — 3 7 63 1515 0 SERVICING NOTE How to reset all Pressing the TUNER/BAND, DISPLAY/DEMO and FILE 3 buttons NOTES ON HANDING THE OPTICAL PICK-UP BLOCK simultaneously, all are reset and returned to as when the unit was OR BASE UNIT shipped.3 7 63 1515 0 TABLE OF CONTEMTS 1. EXPLODED VIEWS.5 6-1. Case and Back Panel Section.88 2.

DISASSEMBLY 6-2. Panel Board Section. Front panel Section. Front Panel Assembly, Main Board and Key Con Board.7 6-4.SECTION 1 This section is extracted from 3 7 63 1515 0 instruction manual. GENERAL L 3 u163 — 5 — 3 7 63 1515 0 L 3 u163 — 6 — SECTION 2 3 7 63 1515 0 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given.

FRONT PANEL ASSEMBLY, MAIN BOARD AND KEY CON BOARD CN1301 1 Remove the connectors. Main board (six connectors). power amplifier board (one connector) 2 Screw (BVTP3 X 8) 6 Screw (BVTP 3x8) 3 Two earth wire.3 7 63 1515 0 2-3. CD MECHANISM DECK 1 Screw (BVTP 3x8) 2 Two screws (BVTP 3x8) 3 Two screws (BVTP 3x8) 4 CD mechanism deck L 3 2-4. BU BRACKET ASSEMBLY 2 BU bracket assembly u163 1 Yoke bracket —.3 7 63 1515 0 2-5. DISC TABLE Note: When the Disc table is installed, adjust the positions of Roller cam and mark ( as shown in the figure, then set to the groove of disc table.

1 Screw (BVTP 3x8) 4 Step screw 3 Bracket (BU) 2 Screw (BVTP 3x8).SECTION 3 SECTION 4 3 7 63 1515 0 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS PRECAUTION DECK SECTION 0 dB=0.775V 1. Clean the following parts with a denatured alcohol-moistened 1. Demagnetize the record/playback head with a head damagnetizer. Do not use a magnetized screwdriver for the adjustments. Record/playback heads pinch rollers 3.3 7 63 1515 0 Tape Speed Adjustment DECK A 2.

Turn the adjustment screw and check output peaks. If the peaks Note: Start the tape speed adjustment as bellow after setting the do not match for L-CH and R-CH, turn the adjustment screw so test mode.3 7 63 1515 0 Record Bias Current Adjustment DECK B 2. Mode: Playback recorded Procedure: position level meter 1. Mode: record LD/VIDEO IN 1) 315Hz 50mV (–23.8dB) 2) 10kHz AF OSC blank tape main board CS-123 CN403 (Pin 3: L-CH) attenuator.3 7 63 1515 0 TUNER SECTION 0dB=1µV. Abbreviation Note: As a front-end (FE1) is difficult to repair if faulty, replace it EA: Saudi Arabia model with new one.

Sony Lbt N355 Manual

AM Tuned Level Adjustment Note: FM Tuned Level adjustment should be performed after this AM Tuned Level adjustment.3 7 63 1515 0 SW OSC Voltage Adjustment Adjustment Location (EA model) TCB BOARD — Component Side — Setting: Band: SW RV41 D1, CV2, T2 Procedure: SW OSC Voltage 1. Connect digital Voltmeter to diode D1 center lead and ground. Adjustment 2.3 7 63 1515 0 S Curve Check CD SECTION Note: oscilloscope 1. CD Block is basically designed to operate without adjustment. BD board Therefore, check each item in order given.

Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. TP(FEO) 3.3 7 63 1515 0 E-F Balance Check Adjustment Location: BD BOARD (Conductor Side) oscilloscope BD board TP (TEO) RV101 TP (VC) IC102 IC101 Procedure: RV103 1. Connect test point TP703 (ADJ 2) on Main board to Ground with a lead wire.SECTION 5 3 7 63 1515 0 DIAGRAMS 5-1. CIRCUIT BOARDS LOCATION TRANS board S. WOOFER board PANEL board TCB board HP board MIC board KEY CON board CD LED board CD (L) board POWER AMP board TC CONTROL board MAIN board L 3 DOOR SW board.3 7 63 1515 0 5-2. IC PIN FUNCTIONS.

IC501 GRAPHIC CONTROL (ASD0204) Function Pin No. Pin Name – LED8 LED drive signal output. 3, 4 LDE7, 6 LED drive signal output.

LED5–1 LED drive signal output. RESET Reset signal input.3 7 63 1515 0. IC701 MASTER CONTROL (TMP87CS64YF) Function Pin Name Pin No. – XOUT X’ tal (10 MHz) Reset signal input. RESET XOUT X’ tal for clock (32.768 kHz) GND (test) – AC CUT Back up signal input.

SUPER WOOFER ON Super woofer ON/OFF control.3 7 63 1515 0 Function Pin Name Pin No. AUB IN Audio bus in/output.

(Not used) AUB OUT FOCUS SW Focus switching signal output. SQ-CLK Subcode Q data read clock output. SQ-DATA Subcode Q data input. Latch signal digital signal processor. X-LAT Test land.3 7 63 1515 0 Function Pin Name Pin No.

NORM NORMAL/HIGH control signal output. BIAS OFF Bias oscillation output. REC MUTE Mute output. NR OFF Dolby ON/OFF signal output. (Not used) REC/PB control signal output. (Not used) PASS.