Daewoo 2898ST Service Manual
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Daewoo 2898ST Service Manual

Daewoo 2898ST Service Manual

66 cm stereo colour television
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Service Manual

66 Cm STEREO Colour Television
CHASSIS : CP-775
MODEL :2898ST

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Summary of Contents for Daewoo 2898ST

  • Page 1: Service Manual

    Service Manual 66 Cm STEREO Colour Television CHASSIS : CP-775 MODEL :2898ST...

  • Page 2: Specifications

    Specifications 28” : A66EAK071X11 (PHILIPS) System TF : PAL - B/G for West Europe, NTSC-3.58 / 4.43 (Play back) Main Voltage 230V AC, 50Hz Power Consumption Stand-by mode : 10 Watts Normal operating mode : 28” = 75 Watts Sound output 5 + 5 Watts, 10 % THD at RF 60 % mod.
  • Page 3 21 PIN EURO-SCART Signal Designation Matching Value Audio Out(linked with 3) 0.5Vrms,lmp<1 (RF 60% MOD) Audio In(linked with 6) 0.5Vrms,lmp>10 Audio Out(linked with 1) 0.5Vrms,lmp<1 (RF 60% MOD) Audio Earth Blue Earth Audio in (linked with 2) 0.5Vrms,lmp>10 Blue in 0.7Vpp 3 ,lmp75 Slow(Function) Switching TV:0-2V,PERI:9.5-12V,lmp>10...

  • Page 4: Safety Instruction

    Safety Instruction WARNING: Only competent service personnel may carry out work involving the testing or repair of this equipment. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially 2. The only source of X-RAY Radiation in this TV hazardous X-RAY RADIATION.To avoid such receiver is the picture tube.For continued X-RAY hazards, the high voltage must not exceed the RADIATION protection,the replacement tube...
  • Page 12 SIF ADJUSTMENT 1. APPARATUS CONNECTION & PRESETTING * CONNECTION * PRESET 1) Connect H-out of LSW-480 to X-axis of the 1) Oscilloscope Scaling oscilloscope and V-out of LSW-480 to Y-axis a) Put the scale of X and Y of the oscilloscope of the oscilloscope.
  • Page 13 IC Description DW5255S*(Micro-controller & West/East Teletext Decoder) (1) General Description The TDA5255 contains a slicer for VPS and TTX, an accelerating acquisition hardware module, a display generator for “LEVEL 1” TTX data and a 8 bit u-controller running at 333 nsec cycle time. The controller with dedicated hardware guarantees flexibility, does most of the internal processing of TTX acquisition , transfers data to/from the external memory interface and receives/transmits data via I2C and UART user interfaces.
  • Page 14 - two 16-bit timers - watchdog timer - serial interface (UART) - 256 bytes on-chip RAM - 1 Kbyte on-chip extended RAM (access via MOVX) - 8 Kbyte on-chip ACQ-buffer-RAM (access via MOVX) - 6 channel 8-bit pulse width modulation unit - 2 channel 14-bit pulse width modulation unit - 4 multiplexed ADC inputs with 8-bit resolution - one 8-bit I/O port with open drain output and optional I2C emulation...
  • Page 15 Name Symbol Description P3.1 SECAM-L’ OUT for switching SAW filter L9461 - SECAM-L’ : H - SECAM- L : L P0.7/Open Drain BUSSTOP I2C BUS STOP IN for Computer controlled alignment in Factory ( Active Low ) P0.6/Open Drain Serial data IN/OUT for I2C P0.5/Open Drain Serial clock IN/OUT for I2C P0.4/Open Drain...
  • Page 16 Name Symbol Description VSSA VSSA Analog GND for Slicer FIL3 FIL3 PLL Loop Filter I/O for Phase Shifting FIL2 FIL2 PLL Loop Filter I/O for TTX Slicing FIL1 FIL1 PLL Loop Filter I/O for VPS Slicing VCCA VCCA Analog Supply for Slicer IREF IREF Reference Current for Slicer PLLs...
  • Page 17 CAT24C08P (E PROM) (1) Typical Features • IC Bus compatible • Low power CMOS Technology • 16 Byte page write Buffer • Self-Timed Write cycle with Auto-Clear • 100,000 program/Erase cycles • 100 Year Data Retention • Optional High Endurance Device Available (2) Description The CAT24C08P is a 8K bit serial CMOS E PROM internally organized as 1024x8bits.
  • Page 18 TDA8375A (Single chip TV Processor for Negative modulation IF ) (1) General Description The TDA8375A is I2C-bus controlled single chip TV processors which are intended to be applied in PAL/NTSC television receiver. The IC is mounted in a S-DIL 56 envelope. (2) Feature •...
  • Page 19 (3) Block Diagram...
  • Page 20 Name Description SOUND IF INPUT not used. EXT AUDIO INPUT not used. VCO REF FILTER The IF VCO tuned circuit is applied to these pin. Its resonance frequency must be two times the IF-frequency and in between a range of 64-120MHz. This range is suitable for the IF standards as 33.4, 38.9, 45.75 and 58.75MHz.
  • Page 21 Name Description INT CVBS INPUT It is recommended that the CVBS1 int and CVBS2 ext input amplitudes are EXT CVBS INPUT 1 Vpp (inclusive sync amplitude). This, because the noise detector switches the 1 loop to slow mode (i.e. auto 1mode when FOA, FOB = 0,0) when noise level exceeds 100mVrms (i.e.
  • Page 22 Name Description B-Y OUTPUT The maximum output impedance of pins 29 and 30 is 500 when PAL/NTSC R-Y OUTPUT signals are identified. When SECAM is identified by the SECAM add-on and no PAL/NTSC is already identified by the ASM, then the ASM sets the -(B-Y)/-(R-Y) output switch open (via DEMSW).
  • Page 23 Name Description PHI-1 FILTER The loopfilter connected to pin 43 is suitable for various signal conditions as strong/weak and VCR signal. This is achieved by switching of the loopfilter time constant by changing the PHI-1 output current. Via I2C bus FOA/B, different time constants can be chosen, including an automatic mode which gives optimal performance under varying conditions.
  • Page 24 TDA4665(Base Band Delay Line) (1) Features • Two comb filters, using the switched-capacitor technique,for one line delay time (64µs) • Adjustment free application • No crosstalk between SECAM colour carriers • Handles negative or positive colour-difference input signals • Clamping of AC-coupled input signals(±(R-Y)and±(B-Y)) •...
  • Page 25 TDA8395 (Secam Decoder) (1) Features Fully integrated filters Alignment free For use with baseband delay (2) Description The TDA8395 is a self-calibrating,fully integrated SECAM decoder. The IC should preferably be used in conjunction with the PAL/NTSC decoder TDA8362 and with the switch capacitor baseband delay circuit TDA4665.
  • Page 26 TDA6106Q ( Video Output Amplifier ) (1) General Description The TDA6106Q is a monolithic video output amplifier (5MHz bandwidth) in a SIL 9 MPpackage, using high-voltage DMOS technology, and is intended to drive the cathode of CRT directly . To obtain maximum performance, the amplifier should be used with black-current control. (2) Feature •...
  • Page 27 TDA8351 (DC-coupled vertical deflection circuit) (1) General Description The TDA8351 is power circuit for use in 90 and 110 color deflection systems for field frequencies of 50 to 120 Hz. The circuit provides a DC driven vertical deflection output circuit, operating as a high efficient class G system. (2) Feature •...
  • Page 28 STR-S5707 (Hybrid IC for a Switching Regulator) (1) General Description The STR-S5707 is a Hybrid IC with a built in power transistor and a separate excitation control IC, designed for converter type switching mode power supply applications. The IC is capable of quasi-resonant mode and requires small number of external component. (2) Feature •...
  • Page 29 Electrical Characteristics of Control Part (Ta=25 ) Description Terminal Symbol Rating Unit On-state Voltage IN(ON) Off-state Voltage IN(OFF) Operating Circuit Current IN(ON) Stand-by Circuit Current IN(OFF) On Time Off Time OCP terminal Threshold Voltage -1.12 -0.88 INH terminal Threshold Voltage 1 0.65 0.75 0.85 INH-1...
  • Page 30 TDA8138 (5.1V+12V regulator with Disable and Reset) (1) General Description The TDA8138 is a monolithic dual positive voltage regulator designed to provide fixed precision output voltages of 5.1V and 12V at currents up to 1A. A internal reset cuicuit generates a reset pulse when the output 1 decrease below the regulated voltage value. Output 2 can be disabled by TTL input.
  • Page 31 TDA1519B (BTL or STEREO audio amplifier) (1) Features Thermally protected Requires very few external Reverse polarity safe components for Bridge Tied Load Capability to handle high energy on outputs (VP (BTL) = 0 V) Stereo or BTL application No switch-on/switch-off plop High output power Protected against electrostatic discharge Low offset voltage at output (important for BTL)
  • Page 32 MSP3410 (Multistandard Sound processor for NICAM & 2-Carrier (1) Features • Asingle-chip Multistandard Sound Pressor for applications in analog and digital TV sets • TWO selectable analog inputs • Automatic Gain control for analog input • All demoudlation and filtering is performed on chip and is individually programmable •...
  • Page 33 (3) Description • Analog Sound IF - Input Section The input pins ANA_IN1+, ANA_IN2+ and ANN_IN-offer the possibility to connect two different sound IF sources to the MSP 3410. By means of bit [8] of AD_CV either terrestrial or satellite sound IF signals can be selected. The analog- to-digital conversion of the preselected sound IF signal is done by a flash-converter, whose output can be used to con- trol an analog automatic gain circuit (AGC), providing optimum level for a wide range of input levels.
  • Page 34 • DQPSK-Decoder In case of NICAM-mode the phase samples are decoded according the DQPSK-Coding scheme. The output of this block contains the original NICAM-bitstream, which is available at the N-Bus interface. • NICAM-Decoder Before any NICAM decoding can start, the MSP must lock to the NICAM frame structure by searching and synchronizing to the so-called Frame Alignment Words (FAW).
  • Page 35 In case of power-on start or starting from standby, the IC switches automatically to the default configuration, shown in the figure above. This action takes place after the first I C transmission into the DFP part. By transmitting the ACB register first, the default setting mode can be changed. •...
  • Page 36 (4) Pin Description PIN NAME DESCRIPTION AUD_CL_OUT Audio clock output CW_CL Pay-TV control clock CW_DA Pay-TV control data D_CTR_OUT1 Digital control output 1 D_CRT_OUT0 Digital control output 0 ADR_SEL Control bus address select STANDBYQ Standby (low-active) D_CTR_IN 0 For future use C_CL C clock C_DA...
  • Page 37 PIN NAME DESCRIPTION AHVSS Analog ground AGNDC Analog reference voltage high voltage part PDMC1 Capacitor to BAGNDI PDMC2 Capacitor to BAGNDI BAGNDI Buffered AGNDC SC3_IN_L Scart input3 in, left SC2_IN_R Scart input3 in, right ASG2 Analog Shield Ground2 SC2_IN_L Scart input2 in, left SC2_IN_R Scart input2 in, right ASG1...
  • Page 38 TDA4445B (Quasi Parallel Sound Processor) (1) Features • Very high input sensitivity • Excellent signal to noise ratio • Fast averaged AGC • IF amplifier can be switched off for VTR mode • Output signal stabilized against supply voltage variations •...
  • Page 39 GMS30112-R098 (4-bit Single Chip Microcomputer for Remote control) (1) General Description The GMS30112-R098 is 4-bit single chip CMOS microcomputer. (2) Feature • program memory : 1024 bytes • data memory : 32 x 4 bits • 43 types of instruction set •...
  • Page 40 (4) Pin Description SYMBOL DESCRIPTION 1,2,3,4 K0,K1,K2,K3 4 bit input port with built in pull up resistor 5,6,7,8,9,10 D0,D1,D2,D3,D4,D5 10 bit output port which can be set or reset pin by pin independently. The output structure is N-channel open drain. REMOUT remote control signal output port which has high current driving capability...

  • Page 41: Ic Dc Voltage Charts

    IC DC Voltage charts Input signal PAL/CH5-Video : 8 step colour bar (87% AM) Audio : 1 KHz sinewave (60% FM) User’s control condition Contrast, Brightness, Colour, Volume Controls-max. Line voltage AC 230V, 50Hz All the voltage in each point are measured with Multimeter 1.
  • Page 42 Pin No. V(DC) Pin No. V(DC) Pin No. V(DC) 3. TDA 4665 (I503) Pin No. V(DC) Pin No. V(DC) 4. TDA 4445B (I603) Pin No. V(DC) Pin No. V(DC) 5. TDA 4445B (I602) Pin No. V(DC) Pin No. V(DC)
  • Page 43 6. TDA 8395 (I502) Pin No. V(DC) Pin No. V(DC) 7. TDA 8138 (I802) Pin No. V(DC) 8. TDA 8351 (I301) Pin No. V(DC) 9. TDA 1519B (I601) Pin No. V(DC) 13.3 12.7 10. MSP 3410 (I602) Pin No. V(DC) Pin No.
  • Page 44 Pin No. V(DC) Pin No. V(DC) Pin No. V(DC)

  • Page 45: Circuit Description

    Circuit Description Vision IF amplifier, AFC, video demodulator The IF signal from the tuner is fed through a SAW filter to the differential IF input (pin 48 and 49). The first IF stage consists of 3 AC-coupled amplifiers with a total gain control range of over 66 dB. The reference carrier for the video demodulator is obtained by a PLL carrier regenerator (eliminating notch filter compromises, as in reference tuned circuits for passive carrier regeneration).

  • Page 46: Colour Decoder

    failure ( “ Power-On Reset “ bit POR ) is detected. The power failure may have corrupted the contents of the internal data registers, so the TDA8375A should be started up again. The TDA8375A has a separate supply input (pin 37) that only used as a clean supply voltage for thehorizontal oscillator circuits.
  • Page 47 RGB output and black current stabilization The colour difference signals (R-Y, B-Y) are matrixed with the luminance signal (Y) to obtain the RGBout output signals (pins 19, 20, 21). In the TDA8375A the matrix type automatically adapts to the decoded standard (NTSC,PAL) . Linear amplifiers are used to interface external RGB in signals (pins 23,24,25) from the SCART connector.
  • Page 48 The voltage change at this pin due to leakage currents should be lower than 10 mV, during field scan, resulting in a capacitor of minimal 100 nF. Pin 8 is the reference capacitor for the PLL. The voltage variation during field scan at this pin should be lower than 2 mV , resulting in a capacitor of 220 nF. The sandcastle input (pin 15) is connected to TDA8375A pin 41 and is used for generation of the blanking periods and provides clock information for the identification circuit.

  • Page 49: Horizontal Deflection

    The TDA4665 needs a 5 V supply voltage on pin 1 for the digital part and on pin 9 for the analog part. TDA8351 vertical deflection. The TDA8351 is a vertical deflection circuit. It can be used in 90 deflection systems with frame frequencies from 50 up to 120 Hz With its bridge configuration the deflection output can be DC coupled with few external components.

  • Page 50: Video Amplifiers

    Video amplifiers Three TDA6106Q integrated video amplifiers drive cathode of the picture tube directly. They are protected against CRT flashover discharges and ESD (electro static discharge). The three video amplifiers, have a beam current output I black, used by the TDA8375A black current loop to control the black level on the cathodes.
  • Page 51 Stand-By Mode While being in remote control stand-by mode, the output voltage is kept on providing to the secondary side and the power transistor operates at A class mode. (4) Drive circuit The STR-S5707 applies the proportional drive system in order to minimize turn-on and saturation loss, and storage time. (5) OCP (over-current protection) function Over-current protection is performed pulse by pulse by directly detecting collector current of the power transistor.
  • Page 52 THE DIFFERENT PARTS FOR CRT (CP-775) LOC. NAME 28” (V/COLOR 28”(PHILIPS) 25”(PHILIPS) 25”(ORION) 29”(ORION) (2896ST, 2898ST) (2896ST, 2898ST) (2594ST) (25G1ST) (29G1ST) C402 C MYLAR 1.6KV 7200PF 1.6KV 8200PF CMYH3C722J CMYH3C822J C404 C MYLAR 1.6KV 4700PF 1.6KV 8200PF CMYH3C472J CMYH3C822J C408 C MYLAR 400V 0.27MF...
  • Page 53 THE DIFFERENT PARTS FOR SYSTEM (CP-775) LOC. NAME J701 WIRE COPPER J702 WIRE COPPER J703 WIRE COPPER AWG221/0.65 TIN COATING 85801065GY J704 WIRE COPPER J705 WIRE DOPPER J706 WIRE COPPER SF01 FILTER SAW G3962M 5PG3962M - - SF02 FILTER SAW G9251M 5PG9251M - - SF03...
  • Page 54 2898 4857817611 CLOTH BLACK FELT TO.7 200 20 7122401612 SCREW TAPPING T2S TRS 4 16 MFZN C/B+M/F 4852148901 COVER BACK HIPS BK 4856015700 SCREW CRT FIXING SWRM+SK-5L=27 4856215402 WASHER RUBBER MAIN PCB AS CP-775 4854934001 BUTTON ABS BK 4857817612 CLOTH BLACK FELT TO.7 250 20 7121401611 SCREW TAPPING...

  • Page 55: Electrical Parts List

    Electrical Parts List Components marked with this symbol must only be replaced by a component having identical physical characteristics. LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK ZAC10 PSACPW0069 ACCESSORY AS DTY-2896TAF M821 4858211400 POLY BAG P.E FILM T0.03X600X550 47P7500001 BATTERY AAM 1.5V 10000 48586A1617 MANUAL INSTRUCTION...
  • Page 56 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK 2291050301 FLUX SOLVENT IM-1000 2224050026 BOND SILICON RTV 122 CARTRIDGE 2291051001 FLUX KILLER KFT-7 C302 CEYD1H689W C ELECTRO 50V RHD 6.8MF (16X35.5) C402 CMYH3C722J C MYLAR 1.6KV BUP 7200PF J C404 CMYH3C472J C MYLAR 1.6KV BUP 4700PF J C408 CMYE2G274J C MYLAR...
  • Page 57 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK I703 1TFMW5380- IC PREAMP TFMW5380 I801 1STRS5707- IC POWER STR-S5707 I801A 4857025403 HEAT SINK AL050P-H24 T=2 I801B 7174301011 SCREW TAPPTITE TT2 RND 3X10 MFZN I802 1TDA8138— IC REGULATOR TDA8138 I802A 4857025401 HEAT SINK A1050P-H24 T2 I802B 7174300811 SCREW TAPPTITE...
  • Page 58 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK SF01 5PG3962M— FILTER SAW G 3962-M SF02 5PG9251M— FILTER SAW G 9251-M SF03 5PL9461M— FILTER SAW L 9461-M SW801 5S40101143 SW PUSH PS3-22SP (P.C.B) T401 50D19A1—- TRANS DRIVE TD-19A1 T402 50H0000181 1352.5008E T802 50M0000101 TRANS SMPS 2094.0008C U100 4859714430...
  • Page 59 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK CC111 HCBK473KCA C CHIP CERA 50V X7R 0.047MF K 2012 CC310 HCBK152KCA C CHIP CERA 50V X7R 1500PF K 2012 CC401 HCBK102KCA C CHIP CERA 50V X7R 1000PF K 2012 CC402 HCBK102KCA C CHIP CERA 50V X7R 1000PF K 2012 CC403 HCBK102KCA...
  • Page 60 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK CC606 HCQK471JCA C CHIP CERA 50V CH 470PF J 2012 CC607 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 CC608 HCBK223KCA C CHIP CERA 50V X7R 0.022MF K 2012 CC609 HCQK509DCA C CHIP CERA 50V CH 5PF D 2012 CC610 HCQK509DCA...
  • Page 61 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK RC101 HRFT183JCA R CHIP 1/10 18K OHM J 2012 RC102 HRFT153JCA R CHIP 1/10 15K OHM J 2012 RC103 HRFT682JCA R CHIP 1/10 6.8K OHM J 2012 RC110 HRFT104JCA R CHIP 1/10 100K OHM J 2012 RC111 HRFT104JCA R CHIP...
  • Page 62 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK RC603 HRFT153JCA R CHIP 1/10 15K OHM J 2012 RC604 HRFT751JCA R CHIP 1/10 750 OHM J 2012 RC605 HRFT102JCA R CHIP 1/10 1K OHM J 2012 RC606 HRFT223JCA R CHIP 1/10 22K OHM J 2012 RC607 HRFT103JCA R CHIP...
  • Page 63 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK RC732 HRFT913JCA R CHIP 1/10 91K OHM J 2012 RC733 HRFT564JCA R CHIP 1/10 560K OHM J 2012 RC734 HRFT473JCA R CHIP 1/10 47K OHM J 2012 RC735 HRFT332JCA R CHIP 1/10 3.3K OHM J 2012 RC737 HRFT100JCA R CHIP...
  • Page 64 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK P101 485923162S CONN WAFER YW025-03 (STICK) P401 485923172S CONN WAFER YW025-04 (STICK) P501 485923192S CONN WAFER YW025-06 (STICK) P601 485923172S CONN WAFER YW025-04 (STICK) P702 485923182S CONN WAFER YW025-OF(STICK) R407 RS02Z561JS R M-OXIDE FILM 2W 560 OHM J SMALL R410 RS02Z223JS R M-OXIDE FILM...
  • Page 65 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK C506 CEXF1E470V C ELECTRO 25V RSS 47MF (5X11) TP C507 CEXF1H109V C ELECTRO 50V RSS 1MF (5X11) TP C508 CEXF1H109V C ELECTRO 50V RSS 1MF (5X11) TP C509 CMXL2E104K C MYLAR 250V MEU 0.1MF K C510 CEXF1H109V C ELECTRO...
  • Page 66 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK C727 CMXM2A104J C MYLAR 100V 0.1MF J (TP) C803 CCXF3A472Z C CERA 1KV F 4700PF Z (T) C804 CCXF3A472Z C CERA 1KV F 4700PF Z (T) C807 CCXB3A471K C CERA 1KV B 470PF K (T) C808 CEXF2A100V C ELECTRO...
  • Page 67 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK Q711 TKTC3202Y- KTC3202Y (TP) Q801 TKTC3198Y- KTC3198Y Q802 TKTC3198Y- KTC3198Y SW700 5S50101090 SW TACT SKHV17910A SW701 5S50101090 SW TACT SKHV17910A SW702 5S50101090 SW TACT SKHV17910A SW703 5S50101090 SW TACT SKHV17910A SW704 5S50101090 SW TACT SKHV17910A ZMP10 PSMPJA0069 PCB MAIN AXIAL AS...
  • Page 68 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK D505 D1N4148—- DIODE 1N4148 (TAPPING) D506 DUZ5R1BM— DIODE ZENER UZ-5.1BM D601 D1SS85TA- DIODE 1SS85TA D602 D1SS85TA- DIODE 1SS85TA D701 D1N4148—- DIODE 1N4148 (TAPPING) D702 D1N4148—- DIODE 1N4148 (TAPPING) D703 D1N4148—- DIODE 1N4148 (TAPPING) D704 D1N4148—- DIODE 1N4148 (TAPPING) D705...
  • Page 69 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK L608 5CPZ100K04 COIL PEAKING 10UH 10.5MM K (LAL04TB) L701 5CPZ689K02 COIL PEAKING 6.8UH K (AXIAL 3.5MM) L804 5MC0000100 COIL BEAD MD-5 (HC-3550) RA01 RD-4Z101J- R CARBON FILM 1/4 100 OHM J RA02 RD-4Z221J- R CARBON FILM 1/4 220 OHM J RA03 RD-4Z221J-...
  • Page 70 LOC. PART-CODE PART-NAME PART-DESCRIPTION REMARK R716 RD-4Z823J- R CARBON FILM 1/4 82K OHM J R720 RD-4Z101J- R CARBON FILM 1/4 100 OHM J R721 RD-4Z101J- R CARBON FILM 1/4 100 OHM J R806 RD-4Z101J- R CARBON FILM 1/4 100 OHM J R807 RD-4Z302J- R CARBON FILM...
  • Page 71 CP-775 CHASSIS SCHEMATIC DIAGRAM...
  • Page 72 WAVE FORMS...

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