Related Manuals for Sanyo FC3G2
Summary of Contents for Sanyo FC3G2
- Page 1 FILE NO. COLOUR TELEVISION Chassis FC3G2 Series TRAINING MANUAL CIRCUIT DESCRIPTION BLOCK DIAGRAM OF ICs TROUBLE SHOOTING REFERENCE XXXXXX Training Manual FC3G2 Chassis...
-
Page 2: Table Of Contents
Trouble Shooting Chart Starpoint symptom: No color & color NG......40 Trouble Shooting Chart Startpoint symptom: No vertical deflection ..... 41 Trouble Shooting Chart Startpoint symptom: No on-screen display..... 42 Short – Open Test Report ....................43 Training Manual FC3G2 Chassis... -
Page 3: Part 1 Chassis Description
Part 1 Chassis Description 1. Chassis Summary The following figure shows a basic block diagram of the FC3G2 chassis. This chassis is constructed by the folowing ICs : AN17820B, IC001, for the audio output circuit LA76818A, IC201, for the IF, video, chroma de-modulation and deflection circuit LA7642NM-TLM-E, IC281, for the SECAM decoder circuit. -
Page 4: Cpu (System Control)
2. CPU (System Control) The following firgure shows a block diagram of the CPU peripheral circuit. CPU that use for FC3G2 is AC5G2 CPU. TERMINAL ASSIGNMENT (AC5G2 CPU) LC863448W-52F1-TLM (ROM:48Kbytes) BUS SDA 1 P10/SDA0 Status input(factory) V/C IC (Low:factory mode) - Page 5 PWM2 Volume PWM output C-MOS Power on/off output C-MOS High:Power on On timer LED output C-MOS Low:timer on VIF-M C-MOS High:NTSC Bass expander Nch-OD High:BASS on C-MOS Factory:Low Status input Nch-OD Factory:Low Note : Hz = High impedance Training Manual FC3G2 Chassis...
- Page 6 ◦ [Volume Up] / [Volume Down] ◦ [Programme Up] / [Programme Down] ◦ [TV/AV] Selector (9) OSD is a multi-color display (the R/G/B output). (10) OFF timer function（30/60/90/120 minutes） (11) ON timer function (10 minutes ~ 24 hours) Training Manual FC3G2 Chassis...
- Page 7 (17) EEPROM (8k bit for 100 position, 16k bit for 256 position) (18) GAME (Air Tennis) (19) Six Language OSD ① English ② Thai ③ Arabic ④ Russian ⑤ French ⑥ Bahasa Indonesia (20) White Tone user adjustable Training Manual FC3G2 Chassis...
-
Page 8: A-D Key Identification Circuit
* S-terminal-less model key port 12PIN R12K R5.6K R3.9K R2.2K R1.8K R1.0K CPU 12 PIN KEY SW INPUT R10K * S-terminal model key port (12PIN) R27K R12K R5.5K R3.9K R2.2K R1.8K R1.0K CPU 12 PIN KEY SW INPUT R10K Training Manual FC3G2 Chassis... - Page 9 * This option is decided only in KEY OFF. An option does not change when K1 ～ K6 was inputted. □Bus data of LA76818 VIDEO OFF 1 OFF 2 (S term less) (S term) Address 14H DAO Training Manual FC3G2 Chassis...
-
Page 10: Memory Option
《SERVICE MODE NO 85》 * MPP FUNCTION option MPP ON MPP OFF * M.P.P. function memorize VOLUME/BRIGHT/CONTRAST/SHARPNESS/TINT for every channel (1~30 POS). * Refer to 121Multi_PP_Level.DOC 《SERVICE MODE NO 86》 * TUNER option Matsushita Tuner ALPS Tuner Training Manual FC3G2 Chassis... - Page 11 ○(S-2) ○(S-4) SYSTEM B ○(S-1) －－－ －－－ ○(S-2) SYSTEM C ○(S-1) ○(S-2) －－－ －－－ SYSTEM D ○(S-1) ○(S-2) ○(S-3) ※Bilingual specification is displayed as S-1 and S-2. The other modes, each SIF system name is displayed. Training Manual FC3G2 Chassis...
- Page 12 《SERVICE MODE NO 96》 * AGC setting Audio Control IC (NJW1142) AGC OFF AGC ON Level= 600 Mv AGC ON Level= 500 mV AGC ON Level= 300 mV * This function available only when using Audio Control IC Training Manual FC3G2 Chassis...
-
Page 13: Power / Stand-By Circuit
Q625 on. As a result, the operation of the power oscillation circuit is stopped. Under normal circumstances these parts, D610, Q661, D661, R661, VR661, R662 are operating as the error detection and regulation circuit for +130V power supply. Training Manual FC3G2 Chassis... -
Page 14: Aft
F/S tuning system model : EB1/EB3/WB2A/WB2B/AB3A/AB3B. (3)The V/S tuning system quality standards are satisfied that RF change can be corrected to ±800kHz. （In case of the China national standard, it is necessary to receive to ±1MHz.） Training Manual FC3G2 Chassis... - Page 15 1. Tuning data raised to +1.5MHz on the way, 2. The digital AFT was performd 100 times or more, ⑤Digital AFT complete. Tab. 1 Digital AFT tuning speed high speed up mid speed up low speed down 500KHz／40msec 100KHz／40msec 50KHz／40msec Training Manual FC3G2 Chassis...
- Page 16 * PLL control (transmission of data) is not performed in standby mode. （the power voltage is not supplied to a PLL circuit） * PLL control is not performed during bus open mode. * PLL control register is refreshed every 20ms. Training Manual FC3G2 Chassis...
- Page 17 00000001B S7(Z5)- S36(Z33) 00000010B S37(Z34)- C57 00001000B ①Classification of VL and VH Z4 ch + 4MHz（＝178.25MHz）is a boundary. VL < 178.25MHz VH ②Classification of VH and UHF Z33 ch＋4MHz(466.25MHz) is a boundary. VL < 466.25MHz UHF Training Manual FC3G2 Chassis...
-
Page 18: Horizontal/Vertical Pulse Input
2400010 3.3KC JP408 R488 VIDEO 1/2FJ1 R872 R435 7SJ6.8VC 2400030 C437 R878 JP435 C835 T471-H8 C437A 250GJ 2400010 0.47 JP409 R355 130V JP403 H-SYNC DJ10K JP412 T471-H6 2400010 2400010 HEATER T471-H4 JP410 LOW B 2400010 T471-H5 Training Manual FC3G2 Chassis... -
Page 19: Service Mode
2-7 Service mode Training Manual FC3G2 Chassis... - Page 20 Training Manual FC3G2 Chassis...
- Page 21 Training Manual FC3G2 Chassis...
-
Page 22: If /Video/Chroma/Deflection
The Horizontal drive pulse is processed in IC201, and sent from pin27 than drives transistor Q431. The vertical drive pulse is sent from pin 23 of IC201 to pin 1 of IC501, vertical output is from IC LA78041. Training Manual FC3G2 Chassis... -
Page 23: Audio Output
C034 R022 C012 R035 C013 FROM AUDIO R007 1.5K 1/2DJ150 PROCESSOR OUTPUT R013 R024 JP011 R036 R037 C035 Q011 1/16GZ0C R IN JP011A R014 C022 Q021 R038 C3738 C014 1/16GJ HEAD R012 1.5KC PHONE TO CPU Training Manual FC3G2 Chassis... -
Page 24: Vertical
By this means, the deflection in the first half of the scanning period is performed. When Q432 turns ON at the end of the first half of the scanning period, the deflection during the last half is begun, thus completing one cycle. ( see fig. on p. 25 ) Training Manual FC3G2 Chassis... - Page 25 0.01F 10EM 1SS133 Q461-H2 2400010 Q461 Q461-H1 2400010 C466 R467 R471 R469 2SB1274 63GK0.39V 1.2M 1.5K (QRA:RRA) D466 R474 Q462 :HJ0.39G R464 MTZJ20A: 1/2DJ1K Q461-1 RD20EB1 VR462 2HEF0068-- C468 R3D6472NJ: D462 D469 R3D7472NJ 25EM22 1.8K PROTECT Training Manual FC3G2 Chassis...
-
Page 26: Power Consumption Saving Circuit
By this means, the voltage on point (A) rises up and drives Q663 on again. By repeating the above operation, the power consumption in the stand-by mode can be saved. Training Manual FC3G2 Chassis... - Page 27 Training Manual FC3G2 Chassis...
-
Page 28: Part 2 Block Diagram Of Ics
Part 2 Block Diagram of ICs 1. LA76818A (IF/VIDEO/CHROMA/DEFLECTION) Training Manual FC3G2 Chassis... - Page 29 Training Manual FC3G2 Chassis...
-
Page 30: La78040N (Vertical Output)
2. LA78041N (VERTICAL OUTPUT) 3. AN17820B (AUDIO OUTPUT) Training Manual FC3G2 Chassis... -
Page 31: La7642Nm (Secam Decoder)
4. LA7642NM (SECAM DECODER) 5. 24LC16B/P (IC MEMORY) Training Manual FC3G2 Chassis... -
Page 32: Part 3 Trouble Shooting Chart
No picture – no sound Page 36 - 37 No picture – sound OK Page 38 No sound – picture OK Page 39 No Color & color NG Page 40 No vertical deflection Page 41 No On-Screen Display Page 42 Training Manual FC3G2 Chassis... -
Page 33: Startpoint Symptom: Dead
IC681 +12.5V Is the power LED lighting ? IC681, C681, IC801, IC802, C805 Check voltage (+24V) Q652, D652, R653 on Q652-collector Check voltage (+130V) on both ends of C651 C651, D651, Q432 Go to next page Training Manual FC3G2 Chassis... -
Page 34: Trouble Shooting Chart
Check voltage on pin 27 of IC801 R830, IC801, and check error detection lines Check voltage (+24V) Q652, D652, R653 on Q652-collector Check voltage (+9V) on Q654-emitor Q654, R656, R668, R669, D653, C643 Go to next page Training Manual FC3G2 Chassis... - Page 35 Horizontal Output circuit, Q432, Is the CRT heater coil lighting T471, T431, DY, R481 Check voltage (+B) circuit & T471 Check voltage on terminal KQ-1 +180V Check voltage on both ends of C469 (+5V to +10v) C469, D467, R475 Training Manual FC3G2 Chassis...
-
Page 36: Trouble Shooting Chart Starpoint Symptom: No Picture-No Sound
Is video signal observed on pin 44 IC201 IC201 R140, R141, peripheral Is video signal observed on pin 46 circuit for AV switch of IC201 (IC1401, IC1501) Check voltage (+36V) on both R103, D103, C107 ends of D103 Go to next page Training Manual FC3G2 Chassis... - Page 37 IF peripheral circuit Video Detector Circuit X161, Q122, D122, C123, L171 C113, Q111, C111 AFT Circuit from CPU pin 10 to one chip pin 10 : C273, C804 X-SW from CPU pin 33 C823, R815, R125, Q122 Training Manual FC3G2 Chassis...
-
Page 38: Starpoint Symptom: No Picture-Sound Ok
Is RGB signal observed on RGB, VCC. Pin 18 IC201 pin 19, 20 & 21 C233, C240, R230, 9V line. Check 9V line to CRT unit 9V line to CRT unit T471, Screen circuit CRT unit, & heater circuit Training Manual FC3G2 Chassis... -
Page 39: Starpoint Symptom: No Sound-Picture Ok
Check Vcc 11V Check input IC001 pin 6, 8 IC001 Check IC3701 pin 10, 21 (for output) and 1, 30 (for input) Check Audio out IC201 pin 1 Check SIF circuit pin 52 IC201 to pin 54 IC201 Training Manual FC3G2 Chassis... -
Page 40: Trouble Shooting Chart Starpoint Symptom: No Color & Color Ng
Check pin 39 IC201, 2.87V X211, C212 IC201 SECAM COLOR IC281, IC201 Check pin 22, IC201, 2V Color Noise Check pin 39: 3.32Vdc 38: 2.85Vdc 37: 1.95Vdc 36: 3.17Vdc 35: 0.93Vpp 34: 0.93Vpp 32: 8.45Vdc 31: 4.58Vdc Training Manual FC3G2 Chassis... -
Page 41: Startpoint Symptom: No Vertical Deflection
Check voltage on pin 2 of IC501 D652, R653, Q652 +24V IC201, IC 501 Check waveform on pin 5 IC501 R525, C524, R515, R516 R514, R515, R516, R518, Compressed or expanded R522, R525, C514, C515, vertical screen size Service data Training Manual FC3G2 Chassis... -
Page 42: Trouble Shooting Chart Startpoint Symptom: No On-Screen Display
No On Screen Display Q871, R871, R877, Vertical. 5V Check waveform on pin 17 of R870, C835, R872 IC801 Q881, R881, R882, Horizontal. 5V Check waveform on pin 18 of R883, C880, R355 IC801 IC801, IC201 Training Manual FC3G2 Chassis...