manualshive.com logo in svg

Yamaha HTR-5150, Service Manual

The Yamaha HTR-5150 is a superior audio receiver that delivers immersive sound experiences. To ensure optimal functionality, don't forget to grab the Owner's Manual. Download this comprehensive manual for free from our website, guaranteeing a hassle-free setup and maximum enjoyment of your Yamaha HTR-5150.

Share
Download
background image

29

RX-V595a/HTR-5150/RX-V595aRDS

IC14 : LC875164A-5K20

8 bit Sub 

µ

-COM

PB7

P07

P27/INT5

P26/INT5

P25/INT5

P24/INT5

P23/INT4

P22/INT4

P21/INT4

P20/INT4

P06

P05

P04

P03

P02

P01

P00

VSS2

VDD2

PWM0

PWM1
SI2P3
SCK2
SI2
SO2
P17/PWM
P16/PWL
P15/SCK1
P14/SI1
P13/SO1
P12/SCK0
P11/SI0
P10/SOO
P34
P33
P32
P31
P30
P87/AN7
P86/AN6

PB6
PB5
PB4
PB3
PB2
PB1
PB0

VSS3

VDD3

PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0

PA0
PA1
PA2

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

PA

3

PA

4

PA

5

P70/INT0

P71/INT1

P72/INT2

P73/INT3

/RES

XT1

XT2

VSS1

CF1

CF2

VDD1

P80/AN0

P81/AN1

P82/AN2

P83/AN3

P84/AN4

P85/AN5

TOP VIEW

SERIAL I/O 0

(SO0,SI0,SCK0)

SERIAL I/O 1

(SO1,SI1,SCK1)

SERIAL I/O 2

(SO2,SI2,SCK2)

TIMER 0

TIMER 1

TIMER 4

TIMER 5

PWM0

PWM1

BASE TIMER

BUS INTERFACE

INTERRUPT

CONTROL

STANDBY

CONTROL

CF

CLOCK

GENE-

RATOR

IR

PLA

ROM

PC

ACC

B REGISTER

C REGISTER

ALU

RAR

RAM

STACK POINTER

WATCH DOG 

TIMER

PSW

RC

Xtal

PORT 0

(P00-P07)

PORT 1

(P10-P18)

PORT 3

(P30-P34)

PORT 7

(P70-P73)

PORT 8

(P80-P87)

ADC

NOISE REJECTION 

FILTER(INT0-INT3)

PORT 2

(P20-P27)

PARALLEL 
INTERFACE
PORT A (PA0-PA5)
PORT B (PB0-PB7)
PORT C (PC0-PC7)

CF1

/RES

CF2

XT1
XT2

Summary of Contents for HTR-5150

Page 1: ...elieved to be accurate and applicable to the unit s indicated on the cover The research engineering and service departments of YAMAHA are continually striving to improve YAMAHA products Modifications are therefore inevitable and specifications are subject to change without notice or obligation to retrofit Should any discrepancy appear to exist please contact the distributor s Service Division WARN...

Page 2: ...ts may also contain traces of chemicals found by the California Health and Welfare Agency and possibly other entities to cause cancer and or birth defects or other reproductive harm DO NOT PLACE SOLDER ELECTRICAL ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHATSOEVER Avoid prolonged unprotected contact between solder and your skin When soldering do not inhale solder fumes or expo...

Page 3: ...2 RX V595a HTR 5150 RX V595aRDS FRONT PANELS RX V595a U C R T A and L models HTR 5150 U C T and A models RX V595aRDS B and G models ...

Page 4: ...3 RX V595a HTR 5150 RX V595aRDS REAR PANELS RX V595a HTR 5150 U model RX V595a HTR 5150 C model RX V595a R model RX V595a HTR 5150 T model ...

Page 5: ...4 RX V595a HTR 5150 RX V595aRDS RX V595a HTR 5150 A model RX V595aRDS B model RX V595aRDS G model RX V595a L model ...

Page 6: ... 120W 120W 145W 145W 170W 170W R T A B G L models 8 6 4 2Ω 90W 90W 110W 110W 135W 135W 160W 160W DIN Standard Output Power Per Channel G model only MAIN L R 1kHz 0 7 THD 4Ω 110W 110W Dynamic Headroom 8Ω U C models only 1 55dB IEC Power G model only MAIN L R 1kHz 0 04 THD 8Ω 75W 75W Power Band Width MAIN L R 0 1 THD 35W 8Ω 10Hz to 50kHz Damping Factor SPEAKER A MAIN L R 20Hz to 20kHz 8Ω 60 Input Se...

Page 7: ...dels 531 to 1611kHz Usable Sensitivity 300µV m Signal to Noise Ratio 52dB Output Level 1kHz 30 mod 150mV Antenna Loop antenna VIDEO SECTION Video Signal Type U C models NTSC R model NTSC PAL T A B G L models PAL Video Signal Level 1Vp p 75Ω S Video Signal Level Y 1Vp p 75Ω C 0 286Vp p 75Ω Maximum Input Level 1 5Vp p Signal to Noise Ratio 50dB Monitor Output Frequency Response 3dB 5Hz 10MHz DIMENSI...

Page 8: ...move 6 screws in Fig 1 Fig 1 POWER TRANSFORMER P C B MAIN 3 P C B OPERATION 7 R T models only P C B OPERATION 3 P C B MAIN 4 P C B MAIN 8 P C B OPERATION 6 P C B MAIN 2 P C B MAIN 1 P C B VIDEO P C B INPUT 1 P C B INPUT 3 P C B TUNER P C B MAIN 5 P C B OPERATION 5 P C B OPERATION 4 P C B MAIN 7 P C B OPERATION 1 P C B MAIN 6 P C B INPUT 4 P C B OPERATION 2 P C B DSP INTERNAL VIEW Front Panel Top C...

Page 9: ...FD DISP OFF 3 VFD DISP ALL 4 CHECKED PATTERN 5 RELEASE DATE 1 ALL 2 MAIN L 3 CENTER 4 MAIN R 5 REAR R 6 REAR L 7 LFE 1 INHIBIT Inhibit Memory Init 2 RESERVED Init Memory 1 2 KEY 3 TUNING SIGNAL 5 PS PROTECTION 1 DSP CPU STATUS 2 CHANNEL STATUS 3 VERSION INFORMATION 4 CHECK SUM 5 BSI0 AC3 DTS 6 BSI1 7 BSI2 8 BSI3 9 BSI4 10 BSI5 1 MAIN MC CHECK SUM 2 SUB MC CHECK SUM 3 MAIN M C VERSION 4 SUB M C VER...

Page 10: ...AND CANCELLATION 1 STARTING UP THE FUNCTION AND THE DISPLAY After starting up menu No 1 is selected A How to start diagnostic program Using the front panel keys of the main unit Step 1 and then press the STANDBY ON key Step 2 Plug in the AC power cord and with Power OFF hold down the INPUT MODE and FM AM keys simultaneously Submenu No 1 of the Diagnosis Main Menu No 1 will start B Settings for sta...

Page 11: ...two seconds FL display at start up of diagnostic program When the diagnostic program has started the history 2 of the protection function 1 is displayed If the protection function has been activated in the past the type and voltage value are displayed After a few seconds the diagnosis function menu will appear 1 If a faulty condition is detected such as excessive current a bad power supply or exce...

Page 12: ...N keys and the submenu by using the PROGRAM keys The UP or key will increase the main or submenu number 2 Other functions available while diagnosis function is active Listed below are the other functions available while the diagnosis function is active Selecting input source Tape monitor Ext decoder Adjusting effect level Center Rear Subwoofer Adjusting master volume Muting on off Power on off 3 D...

Page 13: ... being processed This shows that the device is not operating DIR2 CODEC DA AK4526A YM3436 CODEC AD AC3D2av YSS918 AK4526A DECODER DA AK4320 1M SRAM DSP ANALOG IN L R L R FRONT R REAR L REAR R CENTER SUBWOOFER L R L R L R DIGITAL IN FRONT L MAIN R MAIN L DIR2 CODEC DA AK4526A YM3436 CODEC AD AC3D2av YSS918 AK4526A DECODER DA AK4320 1M SRAM DSP ANALOG IN L R L R FRONT R REAR L REAR R CENTER SUBWOOFE...

Page 14: ...tput to DA with full bits DIR2 CODEC DA AK4526A YM3436 CODEC AD AC3D2av YSS918 AK4526A DECODER DA AK4320 1M SRAM DSP ANALOG IN L R REAR L REAR R CENTER SUBWOOFER L R DIGITAL IN FRONT R FRONT L MAIN R MAIN L L R L R DIR2 CODEC DA AK4526A YM3436 CODEC AD AC3D2av YSS918 AK4526A DECODER DA AK4320 1M SRAM DSP ANALOG IN L R FRONT R REAR L REAR R CENTER SUBWOOFER L R L R L R L R DIGITAL IN FRONT L MAIN R...

Page 15: ...r AC 3 DOLBY DI GITAL 2 0 input the L R C and S signals are PRO LOGIC decoded and output With AC 3 DOLBY DIGITAL other than 2 0 PRO LOGIC does not operate and AC 3 DOLBY DIGITAL playback is executed Remote control code 7A 8A 3 key DSP mode 2 EFFECT OFF MAIN L R are bypassed and output DIR2 CODEC DA AK4526A YM3436 CODEC AD AC3D2av YSS918 AK4526A DECODER DOLBY DIGITAL or PRO LOGIC or DTS or DTS DA A...

Page 16: ... L 10 Verification of the effect in the main level function 4 B MAIN C N Verification of the mixing circuit effect to the main channel 5 LFE B MAIN Verification of the bass mix gain 6 LFE B SWFR Verification of the LFE maximum output 7 C NONE Verification of the center mix gain 8 C S REAR S Verification of the high and low pass filter response and gain in the bass redirection mode 9 FRONT MIX Veri...

Page 17: ...itialization of the back up RAM Specify this option protect user set Values 2 RESERVED Reserve to initialization of the back up RAM The RAM is actually initialized when power is turned on next time Specify this option at the factory preset or to reset the RAM For the contents of the initialization see page 20 The protection data is also reset 6 DVD LD DISP CHECK 6 DVD LD 9902161625 7 DVD LD TEST A...

Page 18: ... Tuner signal level Turning the rotary encoder DC DC protection value normal value 1 13 Press the PROGRAM key PS Power voltage protection value Table 1 normal value 28 54 AD Value 0 11 23 36 51 67 84 TIME LEVEL TAPE MD MON EXT DECODER 7 A B C D E TUNING DOWN 8 TUNING MODE 1 TUNING UP SET MENU MEMORY 2 INPUT MODE EDIT 3 EFFECT 4 EON PTY SEEK MODE FM AM 5 PROGRAM PTY SEEK START PROGRAM RDS MODE 6 K1...

Page 19: ... 2 00000000 10 DVD LD 5 00000000 10 DVD LD 8 00000000 10 DVD LD 9 00000000 bit7 AC 3 decode OK bit3 Demodulator muting without RF signal bit6 DTS decode OK bit2 IEC958 digital format error bit5 Red DTS record Flashes and lights bit1 IEC958 commercial use device bit bit4 1 for audio other than PCM linear audio bit0 IEC958 digital data bit bit7 Mute request bit3 acmod 0000B 1 1 0001B 1 0 0010B 2 0 0...

Page 20: ...4 3 2 1 0 0 0 0 0 0 0 0 0 Always absent 0 Always absent 0 Tuner Mode V1 1 Tuner Mode V2 1 Always absent 0 Always absent 0 Model Type RDS 2 Model Type DSP A 2 No 11 CPU VERSION CHECK SUM PORT INFO EXIT DIAG The check sum version and port setting of main CPU DSP CPU are displayed The signal is EFFECT OFF Operating the submenu will finish self diagnosis and ordinary operation mode will be restored Th...

Page 21: ...ONCERT HALL 44ms SET MENU No SET MENU PRESET VALUE 8 DTS LFE LEVEL DTS LFE 0 dB 7 DYNAMIC RANGE D RNG MAX 6 DOLBY DIGITAL LFE LEVEL D D LFE 0 dB 1 CENTER SPEAKER CNTR LARGE 2 REAR SPEAKER REAR LARGE 3 MAIN SPEAKER MAIN LARGE 4 LFE BASS OUT BASS SW SUBWOOFER 5 MAIN LEVEL M LVL NRML NORMAL 9 CENTER DELAY C DELAY 0ms 11 10 INPUT MODE TV DBS INPUT AUTO MEMORY GUARD GUARD OFF PRESET STATIONS STATION FM...

Page 22: ...econfirm the voltage again Confirm that the voltage is 0 25mV 15 0mV after 60 minutes AMP ADJUSTMENT Note If R571 R577 R589 R595 and R583 have already been cut off and idling current does not flow reconnect R571 R577 R589 R595 and R583 Q521 Q525 are transistors for temperature correction Apply silicone grease to contact surface with the heat sink R571 Lch R577 Rch R589 Cch R595 RLch R583 RRch R583...

Page 23: ...uments Dummy antenna AM SG 50Ω AM dummy antenna 50Ω 10KΩ AM ANT GND FM SG 50Ω E1 FM dummy antenna 60Ω 10Ω 45Ω E2 RECEIVER 75Ω E2 dB E1 dB 6 dB FM SG 75Ω E1 FM dummy antenna E2 RECEIVER 75Ω E2 dB E1 dB TP2 TP1 IFT IFT PK1 FRONT END IC3 IC2 IC1 VR1 PK2 T2 T3 VR2 T5 T4 T1 IC4 CB4 16 SIGNAL METER ADJ SEPARATION ADJ DISCRIMINATOR BALANCE ADJ FRONT MONAURAL DISTORTION ADJ ANTENNA AM SENSITIVITY ADJ FM A...

Page 24: ...1 and TP2 DC 0V 100mV 1 Rough adjustment of monaural distortion Same as Step 1 98 1MHz A 4 T1 Antenna side core REC OUT L R Minimize the distortion 2 Fine adjustment of discriminator balance Same as Step 1 98 1MHz A 4 T1 Front side core Both ends of R25 Between TP1 and TP2 DC 0V 50mV 3 Fine adjustment of monaural distortion Same as Step 1 98 1MHz A 4 T1 Antenna side core REC OUT L R Minimize the d...

Page 25: ...s 8 Verification of sensitivity FM ANT 75Ω 88 1MHz 98 1MHz 106 1MHz MONO 1kHz Modulation off 88 1MHz A 6 98 1MHz A 4 106 1MHz A 7 ANT 75Ω With SSG output at L or R the signal leakage level at the other channel should be minimized 48dB 9 Adjustment of separation FM ANT 75Ω 98 1MHz 70dBµ Stereo L or R 1kHz 100 modulation 98 1MHz A 4 VR2 REC OUT L R 10 0 2 STEREO indicator should light Adjust so that...

Page 26: ...cation of sensitivity AM ANT 630kHz 1080kHz 1440kHz 30 modulation 630kHz B 1 1080kHz B 2 1440kHz B 3 AM ANT Auto reception should be available when the tuning key is moved UP and DOWN Audio must be muted during search 4 Verification of auto tuning AM ANT 60dBµ Distortion should be 10 or less at each frequency Check to ensure that the voltage at the ANT terminal is 54dBµ or less Execution of FACTOR...

Page 27: ...7 S22 PC6 S21 PC5 S20 PC4 VP 51 52 53 54 55 56 57 58 59 60 71 72 73 74 75 76 77 78 79 80 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 P16 P17 P30 P31 P32 P33 P34 P35 P36 P37 RES XT1 XT2 VSS1 CF1 CF2 VDD1 P80 AN0 P81 AN1 P82 AN2 30 29 28 27 26 25 24 23 22 21 P83 AN3 P84 AN4 P85 AN5 P86 AN6 P87 AN7 P70 INT0 P71 INT1 P72 INT2 P73 INT3 ...

Page 28: ...Protection 1 detect PRD 1 24 P86 AN6 PRO2 I Protection 2 detect PRI 1 25 P85 AN5 PRO3 I Protection 3 detect PRV1 1 Pin Pin Port I O Function No Name 26 P70 INT0 PDT I Power down detect 27 P71 INT1 FMT O Full mute L ON 28 P72 INT2 I O Unconnected 29 P73 INT3 REMOTE I Remote Control signal 30 S0 T0 G1 O FL Grid 1 31 S1 T1 G2 O FL Grid 2 32 S2 T2 G3 O FL Grid 3 33 S3 T3 G4 O FL Grid 4 34 S4 T4 G5 O F...

Page 29: ...dB O 10 dB select L 10dB 78 S45 PF5 VCR O VCR select inhibit H inhibit 79 S46 PF6 Unconnected 80 S47 PF7 STANDBY SW I Standby on H ON 81 S48 PG0ROTARY A I Rotary encoder A 82 S49 PG1ROTARY B I Rotary encoder B 83 S50 PG2DSP A SEL I Model Type DSP A 2 84 S51 PG3 85 P00 VOL DN O Volume down 86 P01 VOL UP O Volume up 87 P02 V SEL1 O Video selector 1 3 88 P03 V SEL2 O Video selector 2 3 89 VSS2 VSS2 G...

Page 30: ... 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 PA3 PA4 PA5 P70 INT0 P71 INT1 P72 INT2 P73 INT3 RES XT1 XT2 VSS1 CF1 CF2 VDD1 P80 AN0 P81 AN1 P82 AN2 P83 AN3 P84 AN4 P85 AN5 TOP VIEW SERIAL I O 0 SO0 SI0 SCK0 SERIAL I O 1 SO1 SI1 SCK1 SERIAL I O 2 SO2 SI2 SCK2 TIMER 0 TIMER 1 TIMER 4 TIMER 5 PWM0 PWM1 BASE TIMER BUS INTERFACE INTERRUPT CONTROL STAND...

Page 31: ...ransmit data for Main µ COM 37 SI2 MTS RX Receive data from Main µ COM 38 SCK2 CKIF RXCK Clock from Main µ COM 39 SI2P3 WCIF O Clock for Main µ COM 40 PWM1 TRQ O Transmit request for Main µ COM Pin Pin Port I O Function No Name 41 PWM0 NC OL Unconnected 42 VDD2 VDD2 5V 5V power supply 43 VSS2 VSS2 G Ground 44 P00 NC I O Unconnected 45 P01 NC I O Unconnected 46 P02 NC I O Unconnected 47 P03 NC I O ...

Page 32: ...l use 31 KM2 I Clock mode switching input 2 GND 32 KM0 I Clock mode switching input 0 GND 33 FS1 O Channel status sampling frequency display output 1 NC 34 FS0 O Channel status sampling frequency display output 0 NC 35 CSM I Channel status output method selection GND 36 EXTW I External synchronous auxiliary input word clock GND 37 DDIN I EIAJ AES EBU data input 38 LR O PLL word clock output NC 39 ...

Page 33: ...IB0 SDIB1 SDIB2 XI XO VSS AVDD SDIB3 TEST TEST OVFB DTSDATA AC3DATA SDOB3 CPO AVSS 30 29 28 27 26 25 24 23 22 21 VDD SDOA2 SDOA1 SDOA0 RAMA14 RAMA13 RAMA12 RAMA1 1 RAMA10 VSS TOP VIEW SDBCK0 CONTROL SIGNALS SDI SERIAL DATA INPUT SDO SERIAL DATA OUTPUT CONTROL SIGNALS CONTROL REGISTERS INPUT BUFFER PLL OPERATING CLOCK 25MHz STREAM0 7 L R Ls Rs C LFE DELAY RAM ERAMUSE EXTERNAL RAM INTERFACE DATA RAM...

Page 34: ...R output 25 RAMA14 O RAM address terminal 14 output terminal connected to external 1M SRAM address 26 RAMA13 O RAM address terminal 13 output terminal connected to external 1M SRAM address 27 RAMA12 O RAM address terminal 12 output terminal connected to external 1M SRAM address 28 RAMA11 O RAM address terminal 11 output terminal connected to external 1M SRAM address 29 RAMA10 O RAM address termina...

Page 35: ...ted to external 1M SRAM data 74 RAMD2 I O RAM data bus terminal 2 connected to external 1M SRAM data 75 RAMD3 I O RAM data bus terminal 3 connected to external 1M SRAM data 76 RAMD4 I O RAM data bus terminal 4 connected to external 1M SRAM data 77 RAMD5 I O RAM data bus terminal 5 connected to external 1M SRAM data 78 RAMD6 I O RAM data bus terminal 6 connected to external 1M SRAM data 79 RAMD7 I ...

Page 36: ...ND D1 D2 D3 D4 D5 D6 D7 D8 21 CE1 22 CE2 30 WE 29 OE 24 ROW ADDRESS DECODER 131072 word x 8 bit MEMORY ARRAY 512 row X 2048 column COLUMN I O 256 16 2048 I O DATA CONTROL COLUMN ADDRESS DECODER COLUMN INPUT BUFFER CHIP SELECT WRITE CONTROL OUTPUT CONTROL CE2 L X H H H WE X X L H H OW X X X L H Mode Data I O Power NOTE H High Level L Low level X Don t care Non selectable Non selectable Write mode R...

Page 37: ... 10 DAUX I Connected to ground digital 11 DFS I Connected to ground digital 12 DEM1 I Connected to ground digital 13 DEM0 I 14 MCKO O Unconnected 15 DVDD Power supply digital 16 DVSS Ground digital 17 RD I Power down and reset initial clear from Sub µ COM 18 XTS I Connected to ground analog 19 ICKS1 I Connected to ground analog 20 ICKS0 I Connected to ground analog 21 CAD1 I Connected to ground an...

Page 38: ... to be supplied through 51kΩ from Ec 55 1G 54 2G 53 3G 52 4G 51 5G Pin No CONNECTION 58 NC 57 NC 56 NC 59 NC 60 NC 61 NC 62 NP 63 NP 64 F2 65 F2 P1 1a a 1a a a a a a a a a a a a 16G 15G 14G 13G 12G 11G 10G 9G 8G 4G 3G 2G 1G P2 1b b 1b b b b b b b b b b b b P3 1c c 1c c c c c c c c c c c c P4 1d d 1d d d d d d d d d d d d P5 1e e 1e e e e e e e e e e e e P6 1f f 1f f f f f f f f f f f f P7 1g g 1g ...

Page 39: ...OSC FM OSC VT XL1 STSG MONO D1 D2 METER VR1 SEPARATION VR2 Q5 XL3 5 FM ST CE DI CLK DO TMUTE METER ST IN MIX A B G L models T3 U C R T models J41 AM FM IF DET IC1 LA1266 MPX IC3 LA3401 FM IF POST AMP AM IF AM DET T2 AM RF IF AM AM IF FM IF IF QUADRATURE DET T1 IF AMP Q1 2 1 CERAMIC FILTER Fi 1 CERAMIC FILTER Fi 2 Fi 3 REFERENCE DIVIDER FM AM BAND CHANGE FM AM MUTING RDS CONTROL Rsyn Rdo Rclk TUNER...

Page 40: ... TV DBS IN OUT VCR IN PLAY L R L R TAPE MD L R MAIN CENTER L R SUBWOOFER SURROUND EXTERNAL DECODER INPUT AUDIO SIGNAL DIGITAL SIGNAL L R VIDEO AUX TUNER INPUT SELECTOR IC101 1 3 2 22 30 28 29 TAPE MONITOR IC102 VIDEO AUX DVD LD TV DBS IN OUT VCR Q305 306 VIDEO AMP SELECTOR IC303 MONITOR OUT MONITOR OUT S VIDEO SELECTOR AMP IC301 302 IC304 305 IN DVD LD OUT VIDEO AUX VCR S VIDEO T800 D751 D451 D452...

Page 41: ...s of the Tuner P C B assembly in this model One has only lead type devices and the other has lead type and surface mount SMD devices These two P C B assemblies are compatible Lead Type Device Surface Mount Device TUL TE TUR 12 METER TMUTE ST CE DI CLK DO DEST or Rdo Rce Rdi Rclk Rsyn SEPARATION ADJ MONAURAL DISTORTION ADJ AM ANT FM ANT GND SIGNAL METER ADJ AM SENSITIVITY ADJ DISCRIMINATOR BALANCE ...

Page 42: ...e other has lead type and surface mount SMD devices These two P C B assemblies are compatible R48 T3 J41 SW1 J42 R55 R57 R58 R60 U C R T A L USED CIRCUIT CHANGES BY MARKET NOT USED J Lead Type SMD Semiconductor Location Ref No Location D1 G5 D2 G5 D3 H4 IC1 F2 IC2 G3 IC3 G2 Q1 F3 Q2 F3 Q3 F3 Q4 F2 Q5 G2 Q6 H2 Q7 G3 13 TUL TE TUR 12 METER TMUTE ST CE DI CLK DO DEST or Rdo Rce Rdi Rclk Rsyn TO INPUT...

Page 43: ... Q12 H3 Q13 G3 Q14 D4 Point 5 Pin 13 of IC3 V 2V div H 50nsec div AC range 1 1probe 2V SAMPLE 50ns 0V Point 6 Pin 13 of IC14 V 2V div H 50nsec div AC range 1 1probe 2V SAMPLE 50ns 0V 6 5 1 16 M5M51288BKJ 20LTEL 17 32 LC875164A 5K20 41 60 20 1 61 80 40 21 1 30 YSS918D F 51 50 80 81 31 100 1 11 AK4526A VQ 23 22 33 34 12 44 1 11 YM3436DK 23 22 33 34 12 44 1 12 AK4320 13 24 7 1 HD74HC02FP 14 8 5 8 NJM...

Page 44: ...Y S12 SPRY PRI PRO VP PRV1 CRY W803 W801 YE W802 YE 14 TO MAIN 1 TO POWER TRANSFORMER B G models only H 48 B A C D E F G 1 2 3 4 5 6 PRINTED CIRCUIT BOARD Foil side 49 Semiconductor Location Ref No D800 D801 D802 D803 D805 D806 D807 D808 D809 D811 D812 D813 IC800 IC801 IC802 Q800 Q801 Q802 Q803 Q805 Q806 Q810 Q811 Location C2 C2 C2 C2 C2 C3 C2 E3 C3 C3 C3 C3 E2 D5 E5 F3 E3 E3 C2 C3 C3 E5 E5 8 1 NJ...

Page 45: ...6 15 W815 W812 GY W813 BR SWITCHED 100W MAX TOTAL AC OUTLETS R T models only U C models only U C models only G L models only A B models only MG S12 PRY NC TO MAIN 1 TO OPERATION 6 15 W815 W812 GY W813 BR SWITCHED 100W MAX A B models 100W MAX TOTAL G L models AC OUTLETS TO OPERATION 7 R T models only TO OPERATION 3 U C A B G L models only W813 BR W812 GY W808 RE W806 YE W810 OR W807 WH W809 BE W811...

Page 46: ... NFL VL NFR VR NFRL VRL NFRR VRR NFC VC B E TO OPERATION 1 15 PRV1 RYV RYV TO MAIN 4 W815 15MG S12 PRY NC TO OPERATION 3 OUTPUT REAR SURROUND CENTER REAR SURROUND CENTER L SPEAKERS R L R H 52 B A C D E F G 1 2 3 4 5 6 PRINTED CIRCUIT BOARD Foil side 53 Ref No Location D507 C2 D508 C2 D509 F2 D510 D2 D511 E2 D512 C3 D513 C3 D514 F3 D515 E3 Q521 B1 Q522 C1 Q523 F1 Q524 D1 Q525 E1 Q526 B2 Q527A C1 Q5...

Page 47: ...2 F2 E2 F2 D3 E3 F3 E3 F3 D3 D4 Ref No Q513 Q514 Q515 Q516 Q517 Q518 Q519 Q520 Q557 Q721 Q722 Location E3 E4 F3 F4 E3 E4 F3 F4 F4 G3 G3 PRV1 E E E PRV1 E E E RYV RYV RRV1 RE W751 W752 RE W753 RE W763 OR W765 BE W766 OR W764 BE 16 W761 W504 BE BL TO MAIN 1 TO POWER TRANSFORMER TO MAIN 1 IMPEDANCE SELECTOR 16 FMT L E R E C E RL E RR B NFL VL NFR VR NFRL VRL NFRR VRR NFC VC B E TO INPUT 1 TO IMAIN 1 ...

Page 48: ... IN OUT PHONO CD TAPE MD DVD LD TV DBS VCR SUB WOOFER L OUTPUT R L R 1 3 4 E RI LFEI RRI E E CO RLO 12A VUP VG LI E CI RLI LO E RO LFEO RRO 12 VDN 10 7 7 7 TO INPUT 4 DG DG VG 12A 12B 12 10 5D E E 25 25 11 11 TO MAIN 7 12A 12 TIR E TIL E TOR E TOL E 10dB 9 9 8 8 TO OPERATION 4 RR E RL E C E R E L FMT 10 10 TO MAIN 6 RDT DEST RDO TCE TMUTE STM MTS CKIF MG VDN PRV2 SDT CELC VSEL1 10dB RCK RCE DO ST ...

Page 49: ...LA7956 1 9 LA7956 1 9 LA7956 1 9 LA7956 1 9 DSIG 5D ISL1 DG ISL0 LDC 0 TO DSP 1 1 EXTERNAL DECODER INPUT MAIN L R CENTER SUB WOOFER SURROUND L R DIGITAL DVD LD DVD LD TV DBS DIGITAL SIGNAL OPTICAL HD74HC153P 8 1 9 16 TC74HCU04AP 7 1 8 14 GR E GL E GSW E GC E GRR E GRL TO INPUT 1 W102 uPC4570C 4 1 LB1641 10 1 5 8 uPC4570C 4 1 5 8 uPC4570C 4 1 5 8 W VG VUP 12A RLO CO E E RRI LFE RI E 10 VDN 12 RRO L...

Page 50: ... INPUT CD VOLUME minimum IMPEDANCE SELECTOR Upper PRO LOGIC On PIN CONNECTION DIAGRAM OF TRANSISTORS AND IC s LA7956 2SC1740S R S 2SC1815 Y E C B E C B IC301 305 LA7956 Video Switch DVD LD VIDEO SIGNAL TV DBS VIDEO VCR IN VCR OUT MONITOR OUT DVD LD VIDEO SIGNAL S VIDEO VCR IN VCR OUT MONITOR OUT TO INPUT 1 CB101 page 62 C 8 TO OPE 2 CB807 page 64 J 2 VIDEO S VIDEO SELECTOR AMP VIDEO SELECTOR AMP 3...

Page 51: ...Upper PRO LOGIC On PIN CONNECTION DIAGRAM OF DIODES TRANSISTORS AND IC s UPC4570HA LB1641 HD74HC153P TC9299P M5220L 1SS133 1SS176 HSS104 TC74HCU04AP UPC4570C LC78211 LC78212 LC78213 Anode Cathode NJM2068MD HZS5C2TD HZS11B2TD 2SC2878 A B E C B 8 9 10 IC101 LC78211 Analog Function Switch IC103 LC78212 Analog Function Switch IC102 LC78213 Analog Function Switch IC110 111 TC9299P Electric Controlled V...

Page 52: ...4 0 0 6 11 6 0 42 5 13 4 12 8 0 6 0 6 41 7 0 0 0 1 1 42 3 41 7 0 0 0 6 11 6 0 42 5 0 6 0 6 41 7 0 0 0 1 1 42 3 41 7 0 6 11 6 0 42 5 0 6 41 7 0 0 0 1 1 42 3 41 7 0 6 11 6 0 42 5 0 6 41 6 0 0 0 1 1 42 3 41 6 0 6 11 6 0 42 5 0 6 41 6 0 0 0 1 1 42 3 41 6 43 5 30 2 0 0 0 43 5 30 3 43 5 30 3 0 5 1 0 1 1 0 5 1 0 43 5 30 2 0 0 5 0 6 43 3 43 5 43 4 0 0 0 0 6 1 1 43 5 30 2 0 0 0 43 5 30 3 43 5 30 3 0 5 1 0 ...

Page 53: ...ETS VOLTAGE SELECTOR OPE 2 3 4 S VIDEO AUDIO VIDEO TAPE MD MON EXT DECODER N 9 TO INPUT 1 CB104 page 62 G 8 OPE 1 NOT USED USED NOT USED USED 13 TO POWER TRANSFORMER LC876564A 5M19 SCHEMATIC DIAGRAM OPERATION All voltages are measured with a 10MΩ V DC electric volt meter Components having special characteristics are marked and must be replaced with parts having specifications equal to those origin...

Page 54: ... 0 3 1 0 0 4 9 4 8 2 4 2 4 11 8 2 4 2 4 2 4 2 4 2 4 11 7 11 7 11 8 2 4 2 4 2 4 0 0 0 0 0 0 0 0 0 11 8 0 0 0 11 7 0 0 0 11 8 0 0 0 11 7 0 0 0 0 11 2 11 2 0 0 11 2 0 2 0 2 0 0 5 0 5 0 5 0 4 8 4 8 0 0 0 0 2 0 0 0 11 2 11 2 0 0 0 0 11 2 11 2 0 0 0 0 11 2 11 2 0 0 11 7 0 11 8 0 6 0 6 0 2 4 2 4 2 4 4 8 2 4 4 8 4 8 2 4 2 4 2 4 0 0 0 2 4 2 4 2 4 0 0 0 4 9 2 4 2 4 2 4 0 4 8 0 0 0 4 8 0 0 0 4 7 0 4 6 11 2 0...

Page 55: ...R19 10K C24 47P R23 330 R22 330K C19 5P R25 C23 15P Q6 2SC2619 R17 10 C20 12P Q4 2SC2814 C18 22P R14 1 8K R16 330 R13 10K R12 10K C27 L6 C15 0 2P DT4 MA372 R10 2 7K C14 82P C12 0 018µ C26 0 018µ ANT ANT2 GND2 GND3 VT B IF OUT OSC OUT 1 2 3 4 5 6 7 8 PK1 ENV 172A4G1 V2716700 A L models ANT AGC GND2 GND3 VT B IF OUT OSC OUT C11 22P C1 39P L9 C28 6P R1 100K C2 15P C31 0 01µ C32 0 01µ L1 C3 0 75P DT1 ...

Page 56: ...V 2V div H 50nsec div Point 1 Pin22 of IC2 DC range 1 1 probe 0V V 2V div H 0 1µsec div Point 2 Pin12 of IC4 DC range 1 1 probe 0V AM FM AM FM 0 0 1 5 2 0 1 5 2 7 2 3 0 2 9 1 1 2 4 1 5 1 9 10 6 0 3 5 3 9 3 5 3 9 2 2 3 1 11 2 SIGNAL METER ADJ 6 9 0 3 1 3 1 5 1 5 1 3 1 3 1 3 1 3 1 5 1 5 1 3 1 3 1 3 2 3 2 3 1 3 1 3 1 3 1 0 0 5 4 5 0 0 4 9 0 0 2 8 2 8 9 2 2 8 5 5 2 8 5 5 2 8 7 3 2 8 2 0 11 3 3 4 1 5 9...

Page 57: ...D INFRARED MODUL RF MODULATOR RF PHOT CPL PHOTO COUPLER PHOT INTR PHOTO INTERRUPTER PHOT RFLCT PHOTO REFLECTOR PIN TEST PIN TEST POINT PLST RIVET PLASTIC RIVET R ARRAY RESISTOR ARRAY R CAR CARBON RESISTOR R CAR CHP CHIP RESISTOR R CAR FP FLAME PROOF CARBON RESISTOR R FUS FUSABLE RESISTOR R MTL CHP CHIP METAL FILM RESISTOR R MTL FILM METAL FILM RESISTOR R MTL OXD METAL OXIDE FILM RESISTOR R MTL PLA...

Page 58: ...UR847100 C EL 10uF 25V P C B DSP Schm Ref PART NO Description New Parts New Parts Schm Ref PART NO Description V4035900 P C B DSP CB1 VQ044200 CN BS PIN 6P CB3 VQ044500 CN BS PIN 11P CB6 VQ044600 CN BS PIN 13P C1 UB245100 C CE M CHP 0 1uF 25V C2 UB052100 C CE M CHP 100pF 50V C3 UB052100 C CE M CHP 100pF 50V C4 UB245100 C CE M CHP 0 1uF 25V C5 UB052100 C CE M CHP 100pF 50V C6 UB052100 C CE M CHP 10...

Page 59: ...F IC5 XV457A00 IC M5M51288BKJ 20LTEL IC6 XV951A00 IC AK4526A VQ IC7 XR361A00 IC AK4320 VM E1 IC8 XF291A00 IC uPC4570G2 IC9 XF291A00 IC uPC4570G2 IC10 XF291A00 IC uPC4570G2 IC11 XF291A00 IC uPC4570G2 IC13 XF291A00 IC uPC4570G2 IC14 XV260E00 IC LC875164A 5K20 CPU IC15 XU965A00 IC uPC29M33T E1 3 3V Q1 VV655300 TR DGT DTA144EKA Q2 VV655300 TR DGT DTA144EKA Q3 VV655300 TR DGT DTA144EKA Q4 VD303700 TR 2...

Page 60: ... 47uF 50V C548 VQ645600 C MYLAR 100pF 50V C549 VR325000 C MYLAR 100pF 100V C550 UR867470 C EL 47uF 50V C551 VR325000 C MYLAR 100pF 100V C552 VR325000 C MYLAR 100pF 100V C553 UR867470 C EL 47uF 50V C554 VR325000 C MYLAR 100pF 100V C555 VR325000 C MYLAR 100pF 100V C556 UR867470 C EL 47uF 50V C557 VR325000 C MYLAR 100pF 100V C558 UA954680 C MYLAR 0 068uF 50V C559 UA954680 C MYLAR 0 068uF 50V C560 UA9...

Page 61: ...E Q510 VP883000 TR 2SA893A D E Q511 VP883000 TR 2SA893A D E Q512 VR325600 TR 2SC2229 O Y Q513 VP883000 TR 2SA893A D E Q514 VR325600 TR 2SC2229 O Y Q515 VP883000 TR 2SA893A D E Q516 VR325600 TR 2SC2229 O Y Q517 VP883000 TR 2SA893A D E Q518 VR325600 TR 2SC2229 O Y Q519 VP883000 TR 2SA893A D E Q520 VR325600 TR 2SC2229 O Y Q521 iC174020 TR 2SC1740S R S Q522 iC174020 TR 2SC1740S R S Q523 iC174020 TR 2S...

Page 62: ...Ω 1 4W R659 HV754100 R CAR FP 10Ω 1 4W R662 VP940700 R MTL OXD 330Ω 1W R663 HV755100 R CAR FP 100Ω 1 4W R665 VP940700 R MTL OXD 330Ω 1W R666 VP940700 R MTL OXD 330Ω 1W R688 HZ003780 R MTL PLAT 0 22Ω 0 22Ω5W R690 HZ003780 R MTL PLAT 0 22Ω 0 22Ω5W R692 VU981700 R MTL PLAT 0 22Ω 0 22Ω3W R694 VU981700 R MTL PLAT 0 22Ω 0 22Ω3W R696 VU981700 R MTL PLAT 0 22Ω 0 22Ω3W R711 VP944500 R MTL OXD 390Ω 1W R712 ...

Page 63: ...00pF 200V C112 UA952100 C MYLAR 100pF 50V C113 UA952100 C MYLAR 100pF 50V C114 FG651470 C CE 47pF 50V C115 FG651470 C CE 47pF 50V C116 UA952100 C MYLAR 100pF 50V C117 UA952100 C MYLAR 100pF 50V C118 UA952100 C MYLAR 100pF 50V C119 UA952100 C MYLAR 100pF 50V C120 VF466800 C CE TUBLR 100pF 50V C121 VF466800 C CE TUBLR 100pF 50V C122 VF466700 C CE TUBLR 47pF 50V C123 VF466700 C CE TUBLR 47pF 50V C124...

Page 64: ... 50V C364 VG278400 C CE TUBLR 220pF 50V C365 VF466600 C CE TUBLR 10pF 50V C366 VF467000 C CE TUBLR 1000pF 50V C367 VJ599100 C CE TUBLR 0 1uF 50V C368 VJ599100 C CE TUBLR 0 1uF 50V C369 UR828100 C EL 100uF 10V C401 UR866220 C EL 2 2uF 50V C402 VK533900 C PP 100pF 200V C403 VK533900 C PP 100pF 200V C404 UR866220 C EL 2 2uF 50V C405 UR866220 C EL 2 2uF 50V C406 UR866220 C EL 2 2uF 50V C407 UR866220 C...

Page 65: ... CN BS PIN 7P CB810 VP206500 HOLDER FUS EYF 52BC GL CB811 VP206500 HOLDER FUS EYF 52BC GL CB812 VG879900 CN BS PIN 2P CB813 VP206500 HOLDER FUS EYF 52BC CB814 VP206500 HOLDER FUS EYF 52BC C451 UR868330 C EL 330uF 50V C452 UR868330 C EL 330uF 50V C453 UR749680 C EL 6800uF 25V C454 VE326400 C MYLAR ML 0 22uF 50V C455 UR749220 C EL 2200uF 25V C456 VE326400 C MYLAR ML 0 22uF 50V C457 VS745400 C POL MT...

Page 66: ...093320 TR 2SA933S Q R Q806 VP872700 TR 2SC4488 S T Q807 iC174020 TR 2SC1740S R S Q808 VR510800 TR 2SD2396 J K RT Q810 iC287820 TR 2SC2878 A B Q811 iC287820 TR 2SC2878 A B R451 HV753100 R CAR FP 1Ω 1 4W R452 HV753100 R CAR FP 1Ω 1 4W R878 VP939800 R MTL OXD 10Ω 1W R881 VP939800 R MTL OXD 10Ω 1W R904 HV756560 R CAR FP 5 6KΩ 1 4W RT R906 HV756560 R CAR FP 5 6KΩ 1 4W RT RY800 V2712300 RELAY DC SDT S 1...

Page 67: ... EL 22uF 25V C43 UA953390 C MYLAR 3900pF 50V C44 VG290700 C EL 3 3uF 50V C45 UR837470 C EL 47uF 16V C46 UR837470 C EL 47uF 16V C47 VG278600 C CE TUBLR 330pF 50V C48 VG278800 C CE TUBLR 560pF 50V C49 UA952120 C MYLAR 120pF 50V ABGL C49 UA953220 C MYLAR 2200pF 50V UCRT C50 VJ599000 C CE TUBLR 0 047uF 16V C51 UR837470 C EL 47uF 16V C52 UR837470 C EL 47uF 16V C53 UR837470 C EL 47uF 16V C54 VA761100 C ...

Page 68: ...pF 50V C42 UM397220 C EL 22uF 25V C43 UA953390 C MYLAR 3900pF 50V C44 VG290700 C EL 3 3uF 50V C45 UR837470 C EL 47uF 16V C46 UR837470 C EL 47uF 16V C47 UB012330 C CE M CHP 330pF 50V C48 UB012560 C CE M CHP 560pF 50V C49 UA952120 C MYLAR 120pF 50V ABGL C49 UA953220 C MYLAR 2200pF 50V UCRT C50 UB044470 C CE M CHP 0 047uF 50V C51 UR837470 C EL 47uF 16V C52 UR837470 C EL 47uF 16V C53 UR837470 C EL 47u...

Page 69: ...5 8220 HF45 8270 HF45 8300 HF45 8330 HJ35 8390 HF45 8470 HJ35 8560 HF45 7100 HF45 7110 HF85 7120 HF45 7130 HF45 7150 HF45 7180 HF45 7220 HF45 7240 HF85 7270 HF45 7300 HF45 7330 HF45 7360 HF45 7390 HF45 7470 HF45 7510 HF45 7560 HF45 7620 HF45 7680 HF45 7820 HF45 7910 HF45 8100 HF45 8110 HF45 8120 HF45 8150 HF45 8180 HF85 8220 HF45 8270 HF45 8300 HF45 8330 HF85 8390 HF45 8470 HF85 8560 HF45 5180 HF4...

Page 70: ...T SCREW 3x8 MFZN2 BL 2 23 VT669300 PW HEAD B TITE SCREW 3x8 8 MFC2 2 24 EP630220 BIND HEAD P TITE SCREW 3x8 ZMC2 BL 3 1 V2463200 HEAT SINK 3 2 V3003000 P C B ASS Y MAIN URT 3 2 V3003100 P C B ASS Y MAIN C 3 2 V3003200 P C B ASS Y MAIN A 3 2 V3003300 P C B ASS Y MAIN BG 3 2 V3003400 P C B ASS Y MAIN L 3 3 VV849300 SHEET 19x24 3 11 V2461000 SUPPORT TR 3 12 VQ368500 PUSH RIVET P3545 B 3 13 VK173200 S...

Page 71: ...829000 REAR PANEL RX V595a U 103 V3829100 REAR PANEL RX V595a C 103 V3829200 REAR PANEL RX V595a RT 103 V3829300 REAR PANEL RX V595a A 103 V3829400 REAR PANEL RX V595a L 103 V3829500 REAR PANEL RX V595aRDS B 103 V3829600 REAR PANEL RX V595aRDS G 103 V3829900 REAR PANEL HTR 5150 U 103 V3830000 REAR PANEL HTR 5150 C 103 V3830100 REAR PANEL HTR 5150 T 103 V3830200 REAR PANEL HTR 5150 A 105 V2460800 F...

Page 72: ... 162 EP600830 BIND HEAD B TITE SCREW 3x8 FCRM3 BL 163 EP600250 BIND HEAD B TITE SCREW 3x8 ZMC2 Y 166 EG330030 BIND HEAD SCREW 3x6 FCRM3 BL 167 VT669300 PW HEAD B TITE SCREW 3x8 8 MFC2 168 VT669400 PW HEAD B TITE SCREW 3x15 8 MFC2 170 21991500 PW HEAD S TITE SCREW 4x8 10 FCRM3 BL 171 21991500 PW HEAD S TITE SCREW 4x8 10 FCRM3 BL BL 171 VD069600 PW HEAD S TITE SCREW 4x8 10 MFNI 33 GD 171 VH313200 BW...

Page 73: ... TV Input TV Input 7A 06 TV POWER TV Power TV Power REC VCR REC REC 7A 04 FF VCR FF Recall FF 7C B7 7C AE 7A 58 7A 0C 7A 02 7A 58 REW VCR REW REW 7C AC 7C AB 7A 59 7A 0D 7A 01 7A 59 MENU Menu 7C B2 7C AD 7A 9C 7A 9C TITLE 7C B1 7C AA 7A 86 7A 86 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Key arrangement K10 K20 K30 K9 K19 K29 K8 K18 K28 K7...

Page 74: ...RX V595a HTR 5150 RX V595aRDS ...

Reviews:

No comments

Related manuals for HTR-5150

Raymarine AIS700 Installation Instructions Manual preview
AIS700
Brand: Raymarine Pages: 52
Yaesu FTDX10 Technical Supplement preview
FTDX10
Brand: Yaesu Pages: 120
Strong SRT 6004 User Manual preview
SRT 6004
Brand: Strong Pages: 24
DMP Electronics 570 Easy Entry Installation Manual preview
570 Easy Entry
Brand: DMP Electronics Pages: 4
GEOSUN gAirHawk Operation Manual preview
gAirHawk
Brand: GEOSUN Pages: 9
TV Star T1030 Full User Manual preview
T1030
Brand: TV Star Pages: 10
Hammarlund HQ-180A Series Technical Description, Test And Operating Instructions preview
HQ-180A Series
Brand: Hammarlund Pages: 73
Olson Technology OTLT 3000 Instruction Manual preview
OTLT 3000
Brand: Olson Technology Pages: 12
Majestic SV 517 RDS/BT DAB Manual preview
SV 517 RDS/BT DAB
Brand: Majestic Pages: 13
HiTV Ture TV User Manual preview
Ture TV
Brand: HiTV Pages: 28
GotSat GS 1011 Owner'S Manual preview
GS 1011
Brand: GotSat Pages: 19
National NC-46 Instruction Manual preview
NC-46
Brand: National Pages: 15
Sailor 624228 VHF DSC Installation Manual preview
624228 VHF DSC
Brand: Sailor Pages: 104
Sangean ATS-505P Specification Sheet preview
ATS-505P
Brand: Sangean Pages: 1
Sangean ATS-909 Specification Sheet preview
ATS-909
Brand: Sangean Pages: 1
Sangean ProTravel PT-80 Specifications preview
ProTravel PT-80
Brand: Sangean Pages: 1
Whisper SPORT WS2 User Manual preview
WS2
Brand: Whisper SPORT Pages: 2
Boss Audio Systems DVD-2000B User Manual preview
DVD-2000B
Brand: Boss Audio Systems Pages: 13

Brands by name

Popular brands

Load more brands