Sharp SX68JF100 Service Manual

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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.

Ë Multi 28 Systems

Ë Auto Search Tuning System

Ë 100 CH Program Memory

Ë NICAM (I,B/G), IGR (B/G) Stereo Sound

Ë High Contrast Picture (Black Stretch Circuit)

Ë CATV (Hyper Band) Ready

(Used Frequency Synthesizer Tuner)

Ë Digital-Comb Filter (PAL/NTSC)

Ë 2 Mode Spatializer

» FEATURES ................................................................. 1

» SPECIFICATIONS ...................................................... 2

» IMPORTANT SERVICE NOTES ................................. 2

» ADJUSTMENT PRECAUTIONS ................................. 3

» TROUBLE SHOOTING TABLE ................................. 13

» CHASSIS LAYOUT ................................................... 18

» BLOCK DIAGRAM .................................................... 20

» DESCRIPTION OF SCHEMATIC DIAGRAM ............ 24

» WAVEFORMS ........................................................... 24

The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power

receptacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user - serviceable

parts inside. Refer servicing to qualified service personnel.

SERVICE MANUAL

MODEL

FEATURES

Ë Arabic/Chinese/English/French/Malay/Russian

Ë On Timer/Sleep Timer/Reminder Timer

Ë Auto Picture Noise Reduction (TV)

Ë Blue Back Noise Mute

Ë Rear AV-In/Out Terminals

Ë Front AV-In Terminals

Ë Component Input Terminal

Ë 6-Cylinder SP BOX.

Ë Full Flat CRT

CONTENTS

Page

» SCHEMATIC DIAGRAM ........................................... 27

» PRINTED WIRING BOARD ASSEMBLIES .............. 42

» SOLID STATE DEVICE BASE DIAGRAM ................ 53

» REPLACEMENT PARTS LIST

WARNING

SHARP CORPORATION

COLOUR TELEVISION

Chassis No. SP-90

SX68JF100

6 Language OSD

ELECTRICAL PARTS ........................................... 54

SUPPLIED ACCESSORIES ................................. 67

PACKING PARTS ................................................. 67

CABINET PARTS ................................................. 67

SX68JF100

SX9R7SX68JF10

Page

Table of Contents

Summary of Contents for Sharp SX68JF100

Page 1: Table Of Contents
SX68JF100 SERVICE MANUAL SX9R7SX68JF10 COLOUR TELEVISION Chassis No. SP-90 SX68JF100 MODEL 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.
Page 2: Specifications
ELECTRICAL SPECIFICATIONS IMPOTANT SERVICE NOTES Power Input ................AC 220-240V, 50Hz (Auto) Power Consumption ....................185W Convergence ................Self Convergence System Maintenance and repair of this receiver should be done by Focus ..............Bi-Potential, Uni-Potential Electroslatic Sweep Deflection ....................Magnetic qualified service peronnel only.
Page 3: Adjustment Precautions
ADJUSTMENT PRECAUTION SERVICE MODE The model is a mixture of the adjustment items of I C BUS-CONTROL and the existing analog The service key selects the service mode. (Refer to the attached table.) adjustment. Moreover, since the adjustment with I C BUS-CONTROL is composed of the items Select the item with CH UP/DOWN key, and change the data with VOL UP/DOWN key.
Page 4 Data at Address 00H thru 03H of E PROM are read during shift to the service mode. [Remarks] If any data is different from the following, E PROM will be initializes as shown in the table. *1 When 50Hz data is set, the setting data is increased or decreased to set 60Hz data. 00H : 55 01H : 88 02H : 32...
Page 5 INITIAL SETTING FOR CHANNEL SELECT DATA 29A-FX SYSTEM INITIAL SETTING AT FACTORY 1) Input in the service mode The channel select data is set into E2PROM with MCL key as shown below. SKIP Refer to MCL2 Channel select data. (Page 5-1) After execution, select POS1 for the channel.
Page 6 SERVICE ADJUSTMENT PAL CHROMA ADJUSTMENT PIF CHECK ADJUSTMENT NO. Adjustment part Adjusting procedure and conditions Waveform and others 1 E-12CH(PAL colour bar) is received. 1-1 SUB-COLOUR NO. Adjustment part Adjusting procedure and conditions Waveform and others 2 Make the picture normal with the remote con- (SUB COL) Cy G 1 E-12CH (PAL colour Bar) is received.
Page 7 SECAM CHROMA ADJUSTMENT SOUND LEVEL ADJUSTMENT NO. Adjustment part Adjusting procedure and conditions Waveform and others NO. Adjustment part Adjusting procedure and conditions Waveform and others 1 Receive Oi-5CH(SECAM colour bar). 1 Receive E-12ch (PAL colour bar). Signal con- BELL FILTER f0 SUB SOUND Note: 2 Select the "SCM BELL"...
Page 8 CUT OFF, BKGD ADJUSTMENT SUB CONT SUB-BRIGHT ADJUSTMENT NO. Adjustment part Adjusting procedure and conditions Waveform and others NO. Adjustment part Adjusting procedure and conditions Waveform and others 1 Receive E-5CH (Monoscope pattern). 1 Receive E-5CH (Monoscope pattern) with CRT CUT OFF Note: MAX BEAM 2 Set P-NORM with the remote controller.
Page 9 PURITY ADJUSTMENT CONVERGENCE ADJUSTMENT NO. Adjustment part Adjusting procedure and conditions Waveform and others NO. Adjustment part Adjusting procedure and conditions Waveform and others 1 Select the green monocolour screen with the 1 Receive E-2CH (Crosshatch pattern). Purity Convergence adjustment remote controller, and set the beam current of 2 With the remote controller, make it normal.
Page 10 FOCUS ADJUSTMENT HORIZONTAL/VERTICAL CIRCUIT ADJUSTMENT NO. Adjustment part Adjusting procedure and conditions Waveform and others NO. Adjustment part Adjusting procedure and conditions Waveform and others 1 Receive E-5CH (Monoscope Pattern). Dynamic focus Main screen 2 With the remote controller, make it normal. adjustment adjustment 3 Connect the synchroscope to the eight pins of...
Page 11 A/V INPUT/OUTPUT CHECK FUNCTION OPERATION CHECK (1) (VIDEO AND AUDIO) NO. Adjustment part Adjusting procedure and conditions Waveform and others NO. Adjustment part Adjusting procedure and conditions Waveform and others 1 Receive E-12CH colour bar (colour bar audio 1 Receive E-5CH. Video output CONTRAST 2 Select CONTRAST by picture menu.
Page 12 FUNCTION OPERATION CHECK (2) (VIDEO AND AUDIO) PROTECTOR OPERATION CHECK NO. Adjustment part Adjusting procedure and conditions Waveform and others NO. Adjustment part Adjusting procedure and conditions Waveform and others 1 When E-12CH PAL COLOUR BAR is received 1 Receive E-5CH (monoscope pattern). COLOUR Note: Take care that the colour and H, V protector...
Page 13: Trouble Shooting Table
TROUBLE SHOOTING TABLE TROUBLE SHOOTING TABLE (Continued) Circuits to be checked: Circuits to be checked: » IC1500, 1501 and its NO VERTICAL SCAN » Power circuit. NO RASTER » Video circuit. peripheral circuit » Protector cirucit. » Peripheral circuit of Bus Line.
Page 14 TROUBLE SHOOTING TABLE TROUBLE SHOOTING TABLE (Continued) (Continued) Circuits to be checked: » Power circuit. » Micon circuit. » Protector circuit Lights up » Peripheral circuit of turn off PROM Bus Line. (IC1001) Check F2700. AV-SW (IC451) Normal Blown out VCD1 (IC2801) SECAM...
Page 15 TROUBLE SHOOTING TABLE TROUBLE SHOOTING TABLE (Continued) (Continued) Circuits to be checked: Circuits to be checked: » A/V circuit. NO PICTURE ¥ A/V circuit. » Tuner. ¥ Video output. » Peripheral circuit of Bus Line. ¥ Peripheral circuit of Bus Line. No snow noise.
Page 16 TROUBLE SHOOTING TABLE TROUBLE SHOOTING TABLE (Continued) (Continued) Circuits to be checked: NO NORMAL SOUND NO SPECIFIC COLOUR ¥ Sound control circuit. ¥ Sound out circuit. ¥ SIF circuit. ¥ S-convertor. Is audio output terminal J451 normal. Is only RF signal’s colour abnormal? Is there audio signal at pins (52) and Check TV sound.
Page 17 TROUBLE SHOOTING TABLE (Continued) COLOUR PRODUCED Colour control circuit detective. Colour in B/W mode. Colour saturation control does not Improper colour. work. Turn up and down Colour control. Turn Colour control to minimum. Turn on Colour system forced Does colour gain go up and Does colour disappear? switch.
Page 18: Chassis Layout
SX68JF100 CHASSIS LAYOUT...
Page 19: Block Diagram
SX68JF100 BLOCK DIAGRAM-1...
Page 20 SX68JF100 BLOCK DIAGRAM-2...
Page 21 SX68JF100 WAVEFORMS...
Page 22: Description Of Schematic Diagram
SX68JF100 DESCRIPTION OF SCHEMATIC DIAGRAM SAFETY NOTES: NOTES: 1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE 1. The unit of resistance “ohm” is omitted. REPLACING PARTS. (K = 1000 ohms, M = Meg ohm). 2. All resistors are 1/16 watt, unless otherwise noted.
Page 23 SX68JF100 Ë Tuner å VTUVTBT6ED265 NOTE : The parts here shown are supplied as an assembly but not independently.
Page 24: Schematic Diagram
SX68JF100 SCHEMATIC DIAGRAM: CRT Unit VB68QCP892X1E QEARC2913PEZZ...
Page 25 SX68JF100 SCHEMATIC DIAGRAM: MAIN Unit -1...
Page 26 SX68JF100 SCHEMATIC DIAGRAM: MAIN Unit -2...
Page 27 SX68JF100 SCHEMATIC DIAGRAM: MAIN Unit -3 L1309 P0362CE L1308 P0362CE...
Page 28 SX68JF100 SCHEMATIC DIAGRAM: POWER Unit...
Page 29 SX68JF100 SCHEMATIC DIAGRAM: DIG COM Unit...
Page 30 SX68JF100 SCHEMATIC DIAGRAM: CONTROL Unit...
Page 31 SX68JF100 SCHEMATIC DIAGRAM: SUB POWER Unit...
Page 32 SX68JF100 SCHEMATIC DIAGRAM: NICAM Unit...
Page 33 SX68JF100 SCHEMATIC DIAGRAM: VCJ Unit...
Page 34 SX68JF100 PRINTED WIRING BOARD ASSEMBLIES PWB-A: MAIN Unit (Wiring Side)
Page 35 SX68JF100 PWB-A: MAIN Unit (Wiring Side)(Chip Parts)
Page 36 SX68JF100 PWB-B: POWER Unit (Wiring Side)
Page 37 SX68JF100 PWB-C: CRT Unit (Wiring Side) (Wiring Side) (Chip Parts Side) PWB-D: DIG COM Unit...
Page 38 SX68JF100 PWB-E: CONTROL Unit (Wiring Side)
Page 39 SX68JF100 PWB-H: SUB POWER Unit (Wiring Side)
Page 40 SX68JF100 PWB-I: NICAM Unit (Wiring Side) PWB-I: NICAM Unit (Wiring Side)(Chip Parts)
Page 41 SX68JF100 (Wiring Side) (Wiring Side)(Chip Parts) PWB-J: VCJ Unit...
Page 42 SX68JF100 SOLID STATE DEVICE BASE DIAGRAM TOP VIEW VHiAN7397K/-1 VHiTA8772AN-1 VHiTC9090AN-1 VHiAN7108//-1 RH-iX3285CEN5 RH-iX0249CEZZ VHiTDA9808T-1 RH-FX0008GEZZ VHiTDA9141/-1 RH-DX0083GEZZ VHiM52055FP-1 RH-iX3323CEZZ VHiMSP3410D-1 VHiiR9358//-1 VHiM24C08B/-1 VHiBA15218F-1 VHiMiP0253/-1 VHiCXA2069Q-1 VHiBA7655A/-1 VHiTA1241AN-1 VHiTA1229N/-1 SIDE VIEW ANODE(RED) CATHODE(COMMON) ANODE(GREEN) BASE COLLECTOR EMITTER PX0414CE EMITTER COLLECTOR...
Page 43: Printed Wiring Board Assemblies
SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code PARTS LIST IC1301 VHiTDA7482/-1 R TDA7482 TRANSISTORS PARTS REPLACEMENT Q200 VS2SB709AR/-1 R 2SB709AR Q201 VS2SD601AR/-1 R 2SD601AR Replacement parts which have these special safety characteristics Q202 VS2SD601AR/-1...
Page 44 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code D1007 RH-EX1222CEZZ R Zener Diode C207 VCEA0A1CW337M R 330 Electrolytic D1008 RH-EX1222CEZZ R Zener Diode C208 VCKYCY1HF103Z R 0.01 Ceramic D1009 RH-EX1222CEZZ R Zener Diode C209 VCKYCY1HF103Z R 0.01...
Page 45 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C617 VCKYCY1HB182K R 1800p 50V Ceramic RJ16 VRS-CY1JF000J 1/16W Metal Oxide C618 VCKYCY1HB821K R 820p Ceramic RJ17 VRS-CY1JF000J 1/16W Metal Oxide C619 VCEA0A1HW224M R 0.22 Electrolytic RJ19...
Page 46 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R389 VRS-CY1JF102J R 1.0k 1/16W Metal Oxide R1002 VRS-CY1JF103J R 10k 1/16W Metal Oxide R390 VRS-CY1JF473J R 47k 1/16W Metal Oxide R1003 VRS-CY1JF333J R 33k 1/16W Metal Oxide...
Page 47 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R1103 VRS-CY1JF223J R 22k 1/16W Metal Oxide SC1001 QSOCZ1040CEZZ R Socket, 10-pin (XC) R1106 VRS-CY1JF563J R 56k 1/16W Metal Oxide SLD1001 PSLDM0211PEFW J Shield R1107 VRS-CY1JF562J R 5.6k 1/16W Metal Oxide...
Page 48 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code COILS C1703 VCQPSC2JA333K R 0.033 630V Mylar C1704 RC-KZ0334CEZZ R 270p Ceramic L1500 VP-CF331K0000 R Peaking 330µH C1705 RC-KZ0024CEZZ R 1000p 2kV Ceramic L1640 RCiLZ0982CEZZ R Coil...
Page 49 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R1610 VRS-VV3DB103J R 10k 2W Metal Oxide R1759 VRS-VV3DB270J R 27 Metal Oxide å R1617 VRD-RA2BE153J R 15k 1/8W Carbon R1762 VRD-RA2BE103J R 10k 1/8W Carbon å...
Page 50 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code D3805 RH-EX0718GEZZ R Zener Diode R3859 VRD-RA2BE683J R 68k 1/8W Carbon D3851 RH-DX0475CEZZ R Diode R3860 VRD-RA2BE683J R 68k 1/8W Carbon D3852 RH-DX0475CEZZ R Diode R3861 VRD-RA2BE122J R 1.2k 1/8W...
Page 51 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C5462 VCKYCY1HF103Z R 0.01 Ceramic R5869 VRS-CY1JF102J R 1.0k 1/16W Metal Oxide C5463 VCEA0A1CW107M R 100 Electrolytic R5870 VRS-CY1JF102J R 1.0k 1/16W Metal Oxide C5464 VCKYCY1HF103Z R 0.01...
Page 52 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code å R1218 VRD-RA2BE152J R 1.5k 1/8W Carbon L2701 RCiLF0138CEZZ R Coil å R1219 VRD-RA2BE472J R 4.7k 1/8W Carbon L2702 RCiLF0138CEZZ R Coil å R1220 VRD-RA2BE103J R 10k 1/8W...
Page 53 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code L2301 VP-DF120K0000 R Peaking 12µH C2770 VCEA0A1HW105M R 1.0 Electrolytic L2302 VP-DF120K0000 R Peaking 12µH C2771 VCEA0A1HW105M R 1.0 Electrolytic L2303 VP-XF220K0000 R Peaking 22µH C2772 VCKYCY1HB152K...
Page 54 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code R2788 VRS-CY1JF100J R 10 1/16W Metal Oxide C2404 VCEA0A1HW224M R 0.22 Electrolytic R2789 VRS-CY1JF472J R 4.7k 1/16W Metal Oxide C2405 VCEA0A1CW107M R 100 Electrolytic R2790 VRS-CY1JF472J R 4.7k 1/16W Metal Oxide C2406 VCKYCY1HF103Z R 0.01...
Page 55 SX68JF100 Ref. No. Part No. Description Code Ref. No. Part No. Description Code C2850 VCEA0A1CW106M R 10 Electrolytic R2452 VRS-CY1JF271J R 270 1/16W Metal Oxide C2851 VCEA0A1HW105M R 1.0 Electrolytic R2455 VRS-CY1JF223J R 22k 1/16W Metal Oxide C2852 VCEA0A1CW106M R 10...
Page 56: Supplied Accessories
R Front Cabinet Ass’y CSP-Z0108CE04 R Speaker Box, x2 Not Available – Front Cabinet — VSP1208PB316S R Speaker, x2 HBDGB3141CESA R Badge, “SHARP” QCNW-1885PEZZ J Connecting Cord HDECQ0134PESA J LED Decoration, R/C Cover AD QCNW-2314PEZZ J Connecting Cord HDECQ0140PESB J Speaker Net (L)

Sharp SX68JF100 Service Manual

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