Page 1
REVISION 1 SERVICE MANUAL COLOR TELEVISION 26HF66 The above model is classified as a green product (*1), as indicated by the underlined serial number. This Service Manual describes replacement parts for the green product. When repairing this green product, use the part(s) described in this manual and lead-free solder (*2).
Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any marketing of new products containing the restricted substances. Increasing attention is given to issues related to the global environmental. Toshiba Corporation recognizes environmental protection as a key management tasks, and is doing its utmost to enhance and improve the quality and scope of its environmental activities.
SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, Safety is secured against an X-ray by consider- they are indicated with the labels or seals on the ing about the cathode-ray tube and the high cabinet, chassis and parts.
TABLE OF CONTENTS GREEN PRODUCT PROCUREMENT ..................A1-1 LEAD-FREE SOLDER ........................ A1-1 SERVICING NOTICES ON CHECKING ..................A1-2 HOW TO ORDER PARTS ......................A1-2 IMPORTANT ..........................A1-2 TABLE OF CONTENTS ......................A2-1 GENERAL SPECIFICATIONS ....................A3-1~A3-5 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF ANODE CAP ....................B1-1 2.
GENERAL SPECIFICATIONS CRT Size / Visual Size 26 inch / 656.7mmV System CRT Type Flat (16:9) Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Display Capability 1080i/540p Speaker 2 Speaker Position Front Size 1.8 x 3.9 Inch Impedance Sound Output 5.0W+5.0W 10%(Typical) NTSC3.58+4.43 /PAL60Hz Tuning...
Page 6
GENERAL SPECIFICATIONS Remote Unit RC-KK Control Glow in Dark Remocon Remocon Format TOSHIBA Format TOSHIBA Custom Code 40-BF h Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys Keys Power Input Display Mute 100 / +10...
Page 7
GENERAL SPECIFICATIONS G-10 Features Picture Brightness, Contrast, Color, Tint, Sharpness Mode (Picture preference) Color Temperature Audio Tone Control (Bass, Treble, Balance) Stable Sound Yes(Digital) SRS WOW(SRS 3D/Focus/Tru Bass) Variable Audio Out Tuning TV/CABLE CH Program Add/ Delete Label CH Label Video Label Favorite CH Lock...
Page 8
GENERAL SPECIFICATIONS G-11 Accessories Owner's Manual Language English / Spanish W/ Warranty Remote Control Unit Rod Antenna Poles Terminal Loop Antenna Terminal U/V Mixer DC Car Cord (Center+) Guarantee Card Warning Sheet Circuit Diagram Antenna Change Plug Service Station List Important Safety Instruction Dew/AHC Caution Sheet AC Plug Adapter...
Page 9
60 (ORION SPEC:31) Container Stuffing Sets/40' container G-16 Material Cabinet Cabinet Front PS 94V0 DECABROM Cabinet Rear PS 94V0 NON-DECABROM Non-Halogen Demand Eyelet Demand G-17 Environment Environmental standard requirement (by buyer) Green procurement of TOSHIBA Pb-free Phase3(Phase3A) Measures for Whisker A3-5...
DISASSEMBLY INSTRUCTIONS 3. After one side is removed, pull in the opposite direction to 1. REMOVAL OF ANODE CAP remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap.
DISASSEMBLY INSTRUCTIONS When IC starts moving back and forth easily after REMOVAL AND INSTALLATION OF desoldering completely, pickup the corner of the IC using a FLAT PACKAGE IC tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 2-3.) REMOVAL NOTE Put the Masking Tape (cotton tape) around the Flat...
Page 12
DISASSEMBLY INSTRUCTIONS INSTALLATION When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin-tip Take care of the polarity of new IC and then install the new Soldering Iron. (Refer to Fig. 2-8.) IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 2 seconds. Set Key Remocon Key Operations Releasing of V-CHIP PASSWORD.
Page 14
WHEN REPLACING EEPROM (MEMORY) IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. Table 1...
Page 15
WHEN REPLACING EEPROM (MEMORY) IC CONFIRMATION OF INITIAL DATA Enter DATA SET mode by setting VOLUME to minimum. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 2 seconds. ADDRESS and DATA should appear as FIG 1. ADDRESS is now selected and should "blink".
RE-WRITE FOR DIGITAL SOFT FIRMWARE JG176 USA HD DTV ROM DISC Ref. No. Remarks Part No. Parts Name USA HD DTV ROM JG176 APJG176106 Up-Date of the Firmware DISC NOTE: The operating manual for Re-writing is included in USA HD DTV ROM DISC (JG176). Prepare the following tools for Up-Date of the Firmware.
ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE FUNCTION FUNCTION FUNCTION OSD H CORNER R-Y PHASE Read and perform these adjustments when repairing the CUT OFF C.PARA G-Y GAIN circuits or replacing electrical parts or PCB assemblies. H.POSI C.SAW G-Y PHASE V.POSI V.SYMM BRI.CENT CAUTION H.
Page 18
ELECTRICAL ADJUSTMENTS 2-4: OSD POSITION 2-6: VERTICAL CENT/ VERTICAL SIZE Receive the monoscope pattern from the Pattern Receive the monoscope pattern. Press the MENU button. And, then press the LEFT/ Generator. Using the remote control, set the brightness and RIGHT button on the remote control until the PICTURE contrast to normal position.
Page 19
ELECTRICAL ADJUSTMENTS 2-8: SUB CONTRAST 2-11: COR TOP/BTM Receive the crosshatch signal from the Pattern Generator. Set the screen mode to FULL. Set the screen mode to FULL. Activate the adjustment mode display of Fig. 1-1 and press the channel button (52) on the remote control to Using the remote control, set the brightness and contrast to normal position.
Page 20
ELECTRICAL ADJUSTMENTS 2-13: Confirmation of Fixed Value (Step No.) Please check if the fixed values of the each adjustment items are set correctly referring below. FUNCTION V.POSI 110% V-EHT H-EHT V-BLK P V-BLK S V.LIMIT V.CORR White 100% V.S.CORR Fig. 2-5 S.CORR CORNER 2-13: TILT...
Page 21
ELECTRICAL ADJUSTMENTS 3. PURITY AND CONVERGENCE 3-3: STATIC CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 3-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator.
PRINTED CIRCUIT BOARDS TV MT/FRONT JACK (INSERTED PARTS) SOLDER SIDE CAUTION FOR SERVICE INFORMATION ABOUT CRITICAL CC601 CC602 D601 COMPONENTS, SEE INSIDE BACK COVER. CD101 W105 CD605 B405 CD3203 CP1002 D2001 R404 C406 CD1001 W844 W004 C569_1 R638 IC602 W008 D406 W104 CP510...
VIDEO DECODER SCHEMATIC DIAGRAM (DIGITAL PCB) FROM/TO FLASH DAC_SDA R6607 I2C_DATC DAC_SCLK R6608 I2C_CLKC VD_INT# C66330.082 B R6610 FROM ASIC DVI_RESET X6601 100DT02802 28.636363MHz 0.01 0.01 0.01 C6641 NR6604 0.01 0.01 4D02WGJ0330TCE TO FRONT END C6611 DVIDATA12 DVIDATA13 0.001 DVIDATA14 DVIDE FROM AV OUT DVIDATA15...
WAVEFORMS CHROMA/PROGRESSIVE/PIN 10µs 10µs 1.0V 1.0V 0.5V DEFLECTION 10µs 10µs 20µs 1.0V 2.0V 1.0V 10µs 10µs 1.0V 0.5V 1.0V 10µs 0.5V 5.0V 1.0V SOUND AMP/FRONT AV 10µs 20µs 200m 0.5V 1.0V NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
Page 51
WAVEFORMS 20ms 20µs 200m 1.0V 1.0V 20ms 20µs 1.0V 1.0V 1.0V STEREO 20ms 20µs 200mV 1.0V MICON 10ms 20µs 1.0V 200mV CRT/SVM 0.5ms 20µs 20µs 1.0V 1.0V NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
Page 52
WAVEFORMS AV_SW/JACK 20µs 20µs 100ns 200mV 2.0mV 200mV AV OUT 20µs 5µs 20µs 200mV 200mV 200mV ASIC 20µs 20ns 5µs 20mV 200mV 200mV 20ns 5µs 20mV 200mV 200mV TUNER 20µs 20µs 200mV 200mV NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
Page 66
SERVICE INSTRUCTION File No. 01C200803 Date: Jan 8, 2008 Product: COLOR TELEVISION Model: 32D46, 26HF66, 26DF56 Subject: Part changed for opacity improvement as shown table below. (New part No. assignment for opacity improved IC and PCB unit with opacity improved IC)
Page 67
Location Model TSB S/N Vendor No Description TSB S/N Vendor No Description MEMORY DATA MEMORY DATA IC101 75004515 S3Y9010M02 75010283 S3Y9010M03 OEC7161B OEC7136C TV MT PCB ASS'Y TV MT PCB ASS'Y PCBD70 75003529 A3Y9010070 75010284 F3Y9010007B CMF089A CMF089A 26DF56 MEMORY DATA MEMORY DATA IC2408 75004520...