Service manual

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32R-S60

SHARP CORPORATION

This document has been published to be used for after

sales service only.

The contents are subject to change without notice.

In the interests of user-safety (Required by safety regulations in some countries ) the set should be restored to its

original condition and only parts identical to those specified should be used.

S81Z732R-S60/

COLOR TELEVISION

Chassis No. MS-B

Page

» ELECTRICAL SPECIFICATIONS .........................................................................................................1

» IMPORTANT SERVICE SAFETY PRECAUTION .................................................................................2

» LOCATION OF USER'S CONTROL .....................................................................................................4

» INSTALLATION AND SERVICE INSTRUCTIONS ................................................................................ 5

» SERVICE ADJUSTMENT .....................................................................................................................9

» CHASSIS LAYOUT .............................................................................................................................12

» BLOCK DIAGRAM ..............................................................................................................................13

» SCHEMATIC DIAGRAMS ...................................................................................................................14

» PRINTED WIRING BOARD ASSEMBLIES ........................................................................................ 23

» REPLACEMENT PARTS LIST ............................................................................................................27

» PACKING OF THE SET ......................................................................................................................36

CONTENTS

SPEAKER

SIZE ................................................. 12 cm × 6 cm Oval (2 pcs.)

VOICE COIL IMPEDANCE ............................... 8 ohm at 400 Hz

ANTENNA INPUT IMPEDANCE

VHF/UHF ..................................................... 75 ohm Unbalanced

TUNING RANGES

VHF-Channels ............................................................... 2 thru 13

UHF-Channels ............................................................14 thru 69

CATV Channels ........................................................... 1 thru 125

(EIA, Channel Plan U.S.A.)

POWER INPUT ..................................................... 120V AC 60 Hz

POWER RATING .................................................................. 152W

PICTURE SIZE ........................................... 3,073cm

(476sq inch)

CONVERGENCE ............................................................. Magnetic

SWEEP DEFLECTION .................................................... Magnetic

FOCUS ............................................... Hi-Bi-Potential Electrostatic

INTERMEDIATE FREQUENCIES

Picture IF Carrier Frequency ..................................... 45.75 MHz

Sound IF Carrier Frequency ...................................... 41.25 MHz

Color Sub-Carrier Frequency .................................... 42.17 MHz

(Nominal)

AUDIO POWER

OUTPUT RATING .............. 3.0W + 3.0W (at 10% distortion and

Dual CH Operate)

Specifications are subject to change without

prior notice.

ELECTRICAL SPECIFICATIONS

MODEL

SERVICE MANUAL

32R-S60

Summary of content (33 pages)

PAGE 1
32R-S60 SERVICE MANUAL S81Z732R-S60/ COLOR TELEVISION Chassis No. MS-B MODEL 32R-S60 In the interests of user-safety (Required by safety regulations in some countries ) the set should be restored to its original condition and only parts identical to those specified should be used. CONTENTS Page » ELECTRICAL SPECIFICATIONS ......................................................................................................... 1 » IMPORTANT SERVICE SAFETY PRECAUTION ...................................
PAGE 2
32R-S60 IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: WARNING X-RADIATION AND HIGH VOLTAGE LIMITS 1. For continued safety, no modification of any circuit should be attempted. 2. Disconnect AC power before servicing. 3. Semiconductor heat sinks are potential shock hazards when the chassis is operating. 4.
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2R-S60 IMPORTANT SERVICE SAFETY PRECAUTION (Continued) • Connect the resistor connection to all exposed metal parts having a return to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor. AII checks must be repeated with the AC line cord plug connection reversed. (If necessary, a nonpolarized adapter plug must be used only for the purpose of completing these check.) Any current measured must not exceed 0.
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32R-S60 LOCATION OF USER'S CONTROL Front Panel VIDEO/AUDIO IN 2 TERMINALS POWER Press → On. Press again → Off. SENSOR AREA FOR REMOTE CONTROL MENU Press → Accesses MAIN MENU. Press again → Exits MAIN MENU. VOLUME UP/DOWN (+) Increases sound. ( ) Decreases sound. CHANNEL UP/DOWN – MENU (') Selects next higher channel. (") Selects next lower channel. Press both at the same time to access the MAIN MENU screen. Basic Remote Control Functions Infrared Transmitter Window POWER Press → On.
PAGE 5
32R-S60 INSTALLATION AND SERVICE INSTRUCTIONS Note: (1) When performing any adjustments to resistor controls and transformers use non-metallic screwdrivers or TV alignment tools. (2) Before performing adjustments, the TV set must be on at least 15 minutes. CIRCUIT PROTECTION HIGH VOLTAGE CHECK The receiver is protected by a 4.0A fuse (F701), mounted on PWB-A, wired into one side of the AC line input.
PAGE 6
32R-S60 For adjustments of this model, the bus data is converted to various analog signals by the D/A converter circuit. Note: There are still a few analog adjustments in this series such as focus and master screen voltage. Follow the steps below whenever the service adjustment is required. See "Table-B" to determine, if service adjustments are required. 1. Service mode To enter the service mode and exit service mode.
PAGE 7
32R-S60 SERVICE NUMBER DATA ADJUSTMENT ITEM ADJUSTMENT CONTENTS INITIAL VALUE RANGE V01 V02 V03 V04 V05 V06 V07 V08 V09 V10 V11 V12 V13 V14 V15 V16 V17 V18 V19 V20 V21 V22 V23 V24 V25 V26 V27 V28 V29 V30 V31 V32 V33 V34 V35 V36 V37 V38 V39 V40 V41 V42 V43 V44 V45 V46 V47 V48 V49 V50 V51 V52 V53 PICTURE TINT COLOR SUB-COLOR BRIGHT R CUT-OFF G CUT-OFF B CUT-OFF G DRIVE B DRIVE SHARP N PHASE DC RESTORATION BLACK STRETCH ABL START POINT ABL GAIN γ POINT Y-MUTE/V-STOP ENERGY SAVE RTONE-G RTONE-B BTONE-G B
PAGE 8
32R-S60 SERVICE NUMBER DATA ADJUSTMENT ITEM ADJUSTMENT CONTENTS INITIAL VALUE RANGE EX1 EX2 EX3 EX4 FAO VOLUME CC-POSITION INT A-ATT 24 21 7A 5A 0-50(00h-32h) 0-127(00h-7Fh) 0-255(00h-FFh) 0-127 Must be set to "24" OP1 OP2 OPTION1 OPTION2 BA 01 0-255(00h-FFh) 0-7(00h-07h) Must be set to "B0" Must be set to "31" M01 M02 M03 M04 M05 INPUT LEVEL MTS VCO FILTER WIDEBAND SPECTRAL 09 24 1F 18 10 0-15(00h-0Fh) 0-63(00h-3Fh) 0-63(00h-3Fh) 0-63(00h-3Fh) 0-63(00h-3Fh) Must be set to "09" P01 P02
PAGE 9
32R-S60 SERVICE ADJUSTMENT VCO Adjustment White Balance Adjustment 1. Connect a digital voltmeter between pin (55) of IC201 and ground. 2. Receive a good local channel. 3. Enter the service mode and select the service adjustment "R02". 4. Adjust T201 so that digital voltmeter reads 2.5±1.0VDC. 5. Adjustment is completed, remove the voltmeter, return to "normal" mode. 1. Receive a good local channel. 2.
PAGE 10
32R-S60 Vertical-Size and Linearity Adjustments Horizontal-Size Adjustment 1. Receive a good local channel. 2. Enter the service mode and select the service adjustment "D03" for V-size. 3. Adjust the "D03" bus data to get the proper V-size. 4. For V-linearity adjustment, select data bus "D05" and adjust to get the proper vertical linearity. Note: Aging for 10 min before adjustment. After the adjustment of V-center and V-size, readjustment for this V-line. 1. Receive a good local channel. 2.
PAGE 11
32R-S60 Ë MTS ADJUSTMENT MTS Level Adjustment 1. Receive the following composite signal. Monaural signal: 400Hz, 100% modulation 2. Connect the rms voltmeter to pin (39) of IC3001. 3. Enter the service mode and select the service adjustment "M01" and set to "09". 4. Enter the service mode and select the service adjustment "EX4". 5. Adjust the data so that the rms voltmeter reads 490 ±10 mVrms. MTS VCO Adjustment 1. Keep the unit in no-signal state. 2. Connect the frequency counter to pin (39) of IC3001.
PAGE 12
32R-S60 CHASSIS LAYOUT H G F E D C B A 1 2 3 4 12 5 6
PAGE 13
32R-S60 BLOCK DIAGRAM H G F E D C B A 1 2 3 4 13 5 6
PAGE 14
32R-S60 DESCRIPTION OF SCHEMATIC DIAGRAM WAVEFORM MEASUREMENT CONDITIONS: 1. Photographs taken on a standard gated color bar signal, the tint setting adjusted for proper color. The wave shapes at the red, green and blue cathodes of the picture tube depend on the tint, color level and picture control. 2. indicates waveform check points (See chart, waveforms are measured from point indicated to chassis ground.) NOTES: 1. The unit of resistance "ohm" is omitted. (K=kΩ=1000Ω, M=MΩ) 2.
PAGE 15
32R-S60 SCHEMATIC DIAGRAM: MTS MODULE Unit H G F E D C B A 1 2 3 4 15 5 6
PAGE 16
SCHEMATIC DIAGRAM: MAIN-1 Unit J I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 16~17 12 13 14 15 16 17 18 19 20
PAGE 17
SCHEMATIC DIAGRAM: MAIN-2 Unit J I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 18~19 12 13 14 15 16 17 18 19 20
PAGE 18
SCHEMATIC DIAGRAM: AV Unit J I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 20~21 12 13 14 15 16 17 18 19 20
PAGE 19
32R-S60 SCHEMATIC DIAGRAM: CRT Unit H G F E D C B A 1 2 3 4 22 5 6
PAGE 20
32R-S60 PRINTED WIRING BOARD ASSEMBLIES H G F E PWB-B: CRT Unit (Wiring Side) D C B PWB-S: MTS MODULE Unit (Wiring Side) A 1 2 3 4 23 5 6
PAGE 21
32R-S60 H G F E D C B A PWB-A: MAIN Unit (Wiring Side) 1 2 3 4 24 5 6
PAGE 22
32R-S60 H G F E D C B A PWB-A: MAIN Unit (Chip Parts Side) 1 2 3 4 25 5 6
PAGE 23
32R-S60 H G F PWB-C: AV Unit (Wiring Side) E D C B A PWB-C: AV Unit (Chip Parts Side) 1 2 3 4 26 5 6
PAGE 24
32R-S60 Ref. No. PARTS LIST Part No. ★ Description Code Ref. No. Replacement parts which have these special safety characteristics identified in this manual; electrical components having such features are identified by å and shaded areas in the Replacement Parts Lists and Schematic Diagrams. The use of a substitute replacement part which does no have the same safety characteristic as the factory recommended replacement parts shown in this service manual may create shock, fire or other hazards. 2.
PAGE 25
32R-S60 Ref. No. ★ Part No. Description Code Ref. No.
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32R-S60 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 27
32R-S60 Ref. No. Part No. ★ Description Code Ref. No.
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32R-S60 Ref. No. Part No. ★ Description Code Ref. No.
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32R-S60 Ref. No. Part No. ★ Description Code Ref. No.
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32R-S60 Ref. No. ★ Part No. Description Code Ref. No.
PAGE 31
32R-S60 Ref. No. Part No. ★ Description Code Ref. No. AV UNIT (Continued) VRD-RA2BE221J VRS-CY1JF222J VRD-RA2BE101J VRS-CY1JF101J VRS-CY1JF102J VRD-RA2BE101J VRD-RA2BE101J VRD-RA2BE101J VRS-CY1JF222J VRS-CY1JF102J VRD-RA2BE101J VRD-RA2BE101J J J J J J J J J J J J J 220 2.2k 100 100 1.0k 100 100 100 2.2k 1.0k 100 100 1/8W 1/16W 1/8W 1/16W 1/16W 1/8W 1/8W 1/8W 1/16W 1/16W 1/8W 1/8W Carbon M-Ox. Carbon M-Ox. M-Ox. Carbon Carbon Carbon M-Ox. M-Ox.
PAGE 32
R-S60 Ref. No. Part No. ★ Description Code Ref. No.
PAGE 33
32R-S60 PACKING OF THE SET ★ Polyethylene Bag Operation Manual Infrared R/C Unit ★ Batteries ★ Polyethylene Sheet ★Buffer Material FRONT ★ Packing Case ★ Packing Case Label Use tape to fix the top side of packing case. REAR ★ Packing Case Label Use 12 staples to fix the bottom side of packing case. ★ MARK : Not replacement items. SHARP CORPORATION AV Systems Group Quality & Reliability Control Center Yaita, Tochigi 329-2193, Japan D SEM P SEMEX TQ1232-S Oct. 2001 Printed in Japan MI.